JP6845501B2 - Vertical member installation structure, vertical member installation method, and precast vertical member - Google Patents

Description

The present invention relates to a vertical member installation structure for installing a precast vertical member along a longitudinal direction of a horizontal member of a structure, a method for installing the vertical member, and a precast vertical member used in those structures and methods.

Conventionally, as an example of construction in the case of renewing a vertical member integrally constructed with a horizontal member of an existing structure, or when the horizontal member is cast in the field and the vertical member is made of precast when a new structure is constructed, in a road or a railway. Construction related to bridges can be mentioned. Most of the bridges on roads and railroads have wall balustrades as vertical members installed at both ends of the floor slab as horizontal members in the width direction. The wall balustrade was generally constructed of cast-in-place concrete at the time of initial installation or repair, but in recent years, precast wall balustrades formed in advance at the factory should be installed at the site along the longitudinal direction of the floor slab. (See, for example, Patent Document 1).

Japanese Patent No. 5851757

Here, the precast wall balustrade is often installed by connecting the reinforcing bars of the precast wall balustrade and the reinforcing bars of the floor slab, or fastening with bolts penetrating the precast wall balustrade and the floor slab. However, depending on the structure of the precast wall balustrade and the floor slab, it may be difficult to transport the precast wall balustrade to the site and to connect it to the floor slab.

Up to this point, as an example of the construction of installing the precast vertical member on the horizontal member, the construction of installing the precast wall balustrade on the floor slab has been mentioned, and the problem of difficulty in connecting the two has been described. However, such a problem is not limited to the construction in which the precast wall balustrade is installed on the floor slab, but is a problem that can generally occur in the construction in which the precast vertical member is installed on the horizontal member.

An object of the present invention is to solve such a problem. That is, the present invention provides a vertical member installation structure in which a precast vertical member can be easily installed on a horizontal member, a vertical member installation method, and a precast vertical member used in those structures and methods. I am aiming.

In order to achieve the above object, the vertical member installation structure of the present invention is a vertical member installation structure in which a precast vertical member is installed along a predetermined longitudinal direction on a horizontal member extending in a predetermined longitudinal direction. The precast vertical member is made of concrete, and is fitted into the horizontal member insert at one end and a main body portion in which the horizontal member insert is embedded in the vicinity of the lower surface facing the horizontal member side. The other end of the anchor reinforcing bar is provided on the upper surface of the horizontal member facing the precast vertical member side, and the other end of the horizontal member is provided with an anchor reinforcing bar that acts as an anchor for the horizontal member. In the lower surface of the precast vertical member, at least in the vertical member side region surrounding the opening of the horizontal member insert, and in the upper surface of the horizontal member. An adhesive resin is sandwiched between at least the horizontal member side region facing the vertical member side region surrounding the opening of the anchor hole, and the lower surface of the precast vertical member and the horizontal member. An annular resin packing is sandwiched between the upper surface and the outer edge of the vertical member side region and the horizontal member side region, and the adhesive resin is filled inside the resin packing. It is characterized by being.

In the vertical member installation structure of the present invention, the precast vertical member includes a main body portion that is separate from the anchor reinforcing bar that acts as an anchor for the horizontal member. As a result, the precast vertical member can be separately transported to the site for construction of the main body and the anchor reinforcing bar, and it is possible to easily prevent bending of the anchor reinforcing bar during transportation. Further, the anchor reinforcing bar can be easily attached at the site by fitting it into the horizontal member insert of the main body. As for the horizontal member, it is only necessary to drill an anchor hole and fill it with a cement material. As described above, according to the vertical member installation structure of the present invention, the precast vertical member can be easily installed on the horizontal member.

Further , in the vertical member installation structure of the present invention, at least the vertical member side region surrounding the opening of the horizontal member insert on the lower surface of the precast vertical member and at least the anchor hole on the upper surface of the horizontal member. surrounding the opening, and a horizontal member side region facing said vertical member side region, between the adhesive resin that has been pinched.

According to this suitable vertical member installation structure, the installation strength of the precast vertical member can be enhanced by the adhesive resin.

Further, in the vertical member installation structure of the present invention, between the lower surface of the precast vertical member and the upper surface of the horizontal member along the outer edge of the vertical member side region and the horizontal member side region. , An annular resin packing is sandwiched, and the adhesive resin is filled inside the resin packing . Then, it is preferable that the outside of the resin packing between the lower surface of the precast vertical member and the upper surface of the horizontal member is filled with non-shrink mortar.

According to the vertical member installation structure of the present invention, the amount of adhesive resin used, which tends to be expensive, can be suppressed, so that the construction cost can be reduced. Further, by using the resin packing, the outflow of the adhesive resin before curing can be suppressed, so that the precast vertical member can be installed more easily while reducing the construction cost as described above. Further, the installation strength of the precast vertical member can be further enhanced by the non-shrink mortar on the outside of the resin packing.

Further, in the vertical member installation structure of the present invention, it is also preferable that a plurality of the horizontal member inserts are embedded in each of the plurality of buried areas arranged in the longitudinal direction in the vicinity of the lower surface. ..

According to this suitable vertical member installation structure, a plurality of horizontal member inserts are embedded in each of the plurality of buried areas, so that the installation strength of the precast vertical member can be enhanced. Then, from among a plurality of horizontal member inserts, the one used for installing the precast vertical member can be selected based on, for example, the position of the anchor hole determined by the structure of the horizontal member, and therefore the precast vertical member can be selected. The vertical member can be installed more easily on the horizontal member.

Further, in the vertical member installation structure of the present invention, it is also preferable that the horizontal member insert includes a nut portion into which the screw portion is fitted and a reinforcing bar portion having one end connected to the nut portion. ..

According to this suitable vertical member installation structure, the embedding strength of the horizontal member insert is enhanced by the above-mentioned reinforcing bar portion, so that the installation strength of the precast vertical member can be further enhanced.

Further, in this suitable vertical member installation structure, it is more preferable that the end of the reinforcing bar portion of the horizontal member insert opposite to the nut portion side is connected to the internal reinforcing bar of the main body portion. Is.

According to this more suitable vertical member installation structure, the embedding strength of the horizontal member insert is further enhanced by connecting the above-mentioned reinforcing bar portion to the internal reinforcing bar of the main body portion, so that the installation strength of the precast vertical member is further enhanced. Can be further enhanced.

Further, the vertical member installation structure of the present invention is a vertical member installation structure in which a precast vertical member is installed along a longitudinal direction on a horizontal member extending in a predetermined longitudinal direction, and the precast vertical member is , A main body made of concrete, in which an insert for a horizontal member is embedded in a state of being opened in the lower surface, and a screw portion to be fitted into the insert for a horizontal member are formed in the vicinity of the lower surface facing the horizontal member side. The other end of the anchor reinforcing bar is inserted into the upper surface of the horizontal member facing the precast vertical member side, and the other end is cement. Anchor holes filled with materials are drilled , and each of the precast vertical members extends in the longitudinal direction, and a plurality of the precast vertical members are arranged and installed along the longitudinal direction. A connecting insert is embedded in the vicinity of the first side surface of both side surfaces of the vertical member in the longitudinal direction in a state of being open to the first side surface, and the height of the main body portion is embedded in the second side surface. A connecting groove extending in the horizontal direction is formed, one end is connected to the connecting insert, and the bolt head is fitted into the connecting groove in the main body of the adjacent precast vertical member. The precast vertical member is further provided with an anchor bolt that acts as an anchor to the adjacent precast vertical member by filling the connecting groove with a non-shrink mortar .

According to this lead straight member installation structure, the anchor bolts used for connecting precast made vertical members with each other adjacent well, it is possible to transport separately from the scene to the main body portion, bending of the anchor bolt when carrying prevention Etc. can be easily realized. In addition, the anchor bolts can be easily attached at the site by fitting them into the connecting inserts of the main body. As described above, according to the above-mentioned suitable vertical member installation structure, the precast vertical member can be more easily installed on the horizontal member from the viewpoint of connecting the adjacent precast vertical members.

Further, the lead straight member installation structure of this, the coupling insert has a nut portion which the one end of the anchor bolt is fitted, that one end to the nut portion is provided with a reinforcement portion connected further Suitable.

According to this more suitable vertical member installation structure, the strength of the connecting insert is also increased, so that a high connecting strength can be obtained for the adjacent precast vertical members.

Further, in the vertical member installation structure of the present invention , it is more preferable that the connecting groove is a groove metal fitting embedded in the second side surface.

According to this more suitable vertical member installation structure, the strength of the connecting groove is also increased, so that a higher connecting strength can be obtained for the adjacent precast vertical members.

Further, in this more preferable vertical member installation structure, it is more preferable that a groove reinforcing bar having one end connected to the groove metal fitting is embedded in the main body portion.

According to this more suitable vertical member installation structure, since the strength of the connecting groove is further enhanced by the groove reinforcing bar, it is possible to obtain a higher connecting strength between adjacent precast vertical members.

Further, in order to achieve the above object, the vertical member installation method of the present invention is a vertical member installation method in which a precast vertical member is installed along a predetermined longitudinal direction on a horizontal member extending in a predetermined longitudinal direction. The precast vertical member is made of concrete, and the horizontal member insert is embedded in the vicinity of the lower surface facing the horizontal member side with the horizontal member insert embedded in the lower surface, and the horizontal member insert at one end. A screw portion to be fitted into the horizontal member is formed, and the other end is provided with an anchor reinforcing bar that acts as an anchor for the horizontal member, and the anchor reinforcing bar is inserted into the horizontal member insert in the main body portion of the precast vertical member. In the process of attaching the anchor reinforcing bar to be attached, an anchor hole into which the other end of the anchor reinforcing bar is inserted is drilled in the upper surface of the horizontal member facing the precast vertical member side, and the anchor hole is filled with a cement material. An anchor hole installation step and a vertical member installation step of installing the precast vertical member on the upper surface of the horizontal member so as to insert the other end of the anchor reinforcing bar into the anchor hole of the horizontal member are provided. In the vertical member installation step, an adhesive resin is applied to at least a horizontal member side region surrounding the opening of the anchor hole on the upper surface of the horizontal member, and the precast vertical member is installed on the upper surface of the horizontal member. It is a step of arranging an annular resin packing on the upper surface of the horizontal member along the outer edge of the horizontal member side region and filling the inside of the resin packing with an adhesive resin. And.

In the vertical member installation method of the present invention, the precast vertical member can be separately transported to the site for construction of the main body and the anchor reinforcing bar, and it is easy to prevent bending of the anchor reinforcing bar during transportation. It can be realized. In addition, the on-site construction work is carried out through easy operations such as an anchor reinforcing bar mounting process for attaching the anchor reinforcing bar to the insert for the horizontal member and an anchor hole installation process for drilling the anchor hole and filling the cement material. .. As described above, according to the vertical member installation method of the present invention, the precast vertical member can be easily installed on the horizontal member.

Further , in the vertical member installation method of the present invention, in the vertical member installation step, an adhesive resin is applied to at least a horizontal member side region surrounding the opening of the anchor hole on the upper surface of the horizontal member, and the precast vertical member is provided. the Ru step der be installed in the upper surface of the horizontal member.

According to this suitable vertical member installation method, the installation strength of the precast vertical member can be enhanced by the adhesive resin.

Further, in the vertical member installation method of the present invention, in the vertical member installation step, an annular resin packing is arranged on the upper surface of the horizontal member along the outer edge of the horizontal member side region and inside the resin packing. This is the process of filling the adhesive resin. Then, in the vertical member installation method of the present invention, it is preferable that the vertical member installation step is a step of filling the outside of the resin packing with non-shrink mortar after the installation of the precast vertical member .

According to lead a straight member installation method this, it is possible to reduce the construction cost since the amount of tend to be expensive adhesive resin is suppressed. Further, by using the resin packing, the outflow of the adhesive resin before curing can be suppressed, so that the precast vertical member can be installed more easily while reducing the construction cost as described above. Further, the installation strength of the precast vertical member can be further enhanced by the non-shrink mortar on the outside of the resin packing.

Further, the vertical member installation method of the present invention is a vertical member installation method in which a precast vertical member is installed along a longitudinal direction on a horizontal member extending in a predetermined longitudinal direction, and the precast vertical member is , A main body made of concrete, in which an insert for a horizontal member is embedded in a state of being opened in the lower surface, and a screw portion to be fitted into the insert for a horizontal member are formed in the vicinity of the lower surface facing the horizontal member side. The other end of the anchor reinforcing bar serves as an anchor for the horizontal member, and the anchor reinforcing bar is attached to the horizontal member insert in the main body of the precast vertical member. An anchor hole installation step of drilling an anchor hole into which the other end of the anchor reinforcing bar is inserted and filling the anchor hole with a cement material on the upper surface of the horizontal member facing the precast vertical member side, and the horizontal The precast vertical member comprises a vertical member installation step of installing the precast vertical member on the upper surface of the horizontal member so as to insert the other end of the anchor reinforcing bar into the anchor hole of the member. The vertical member installation step extends in the longitudinal direction, and is a step of arranging and installing a plurality of the precast vertical members along the longitudinal direction of the horizontal member. A connecting insert is embedded in the vicinity of the first side surface of both side surfaces in the longitudinal direction of the main body portion in a state of being open to the first side surface, and a connecting insert is embedded in the second side surface in the height direction of the main body portion. An extending connecting groove is formed, and the precast vertical member further includes an anchor bolt that acts as an anchor to the adjacent precast vertical member, and the vertical member installation step is performed on the connecting insert. The precast vertical member is installed so that one end of the anchor bolt is attached and the bolt head of the anchor bolt is fitted into the connecting groove in the main body of the adjacent precast vertical member, and then the precast vertical member is installed. It is a step of filling the connecting groove with a non-shrink mortar.

According to lead a straight member installation method this, the anchor bolts used for connecting precast made vertical members with each other adjacent well, it is possible to transport separately from the scene to the main body portion, bending of the anchor bolt when carrying prevention Etc. can be easily realized. In addition, the anchor bolts can be easily attached at the site by fitting them into the connecting inserts of the main body. As described above, according to the above-mentioned suitable vertical member installation method, the precast vertical member can be more easily installed on the horizontal member from the viewpoint of connecting the adjacent precast vertical members.

Further, in this suitable vertical member installation method, in the vertical member installation step, spacers are arranged at a plurality of locations between the lower surface of the main body and the upper surface of the horizontal member to form the main body. While adjusting the levelness, the upper surface connecting metal fittings that are bridged from the upper surface of the main body opposite to the lower surface to the upper surface of the adjacent precast vertical member and connect the two upper surfaces to each other are used. It is more preferable to install the precast vertical member while matching the heights of the two upper surfaces.

For example, when the existing wall vertical member is removed for repair and a new precast vertical member is installed at the removed portion, the precast vertical member is installed on an uneven installation surface after the removal. According to the above-mentioned more preferable vertical member installation method, even if the installation surface is uneven, a plurality of precast vertical members can be aligned with each other by adjoining precast vertical members, and the height position of the upper surface can be aligned with each other. It can be installed with a high degree of levelness. As a result, high installation strength can be obtained, and a good appearance after installation can be obtained.

Further, in order to achieve the above object, the precast vertical member of the present invention is a precast vertical member installed along the longitudinal direction on a horizontal member extending in a predetermined longitudinal direction, and is made of concrete. Then, in the vicinity of the lower surface facing the horizontal member side, a main body portion in which the horizontal member insert is embedded while being opened in the lower surface, and a screw portion to be fitted into the horizontal member insert are formed at one end and the other end. but and a serving anchor rebar anchors for said horizontal member, wherein the lower surface, an annular resin packing adhesive resin is filled pinched inward between the upper surface of the horizontal member to the outer edge Along the line, at least a vertical member side region surrounding the opening of the horizontal member insert is provided.
Further, the precast vertical member of the present invention is a precast vertical member installed along the longitudinal direction on a horizontal member extending in a predetermined longitudinal direction, and each of the precast vertical members is described above. A plurality of horizontal members are arranged and installed along the longitudinal direction while extending in the longitudinal direction. The horizontal member is made of concrete and is open to the lower surface in the vicinity of the lower surface facing the horizontal member side. The main body portion in which the insert is embedded and an anchor reinforcing bar having a threaded portion fitted into the horizontal member insert at one end and an anchor reinforcing bar at the other end serving as an anchor for the horizontal member are provided. A connecting insert is embedded in the vicinity of the first side surface of both side surfaces in the longitudinal direction with an opening in the first side surface, and a connecting insert extending in the height direction of the main body portion is embedded in the second side surface. A groove is formed, one end is connected to the connecting insert, a bolt head is fitted into the connecting groove in the main body of the adjacent precast vertical member, and a non-shrink mortar is fitted into the connecting groove. Anchor bolts that act as anchors for the adjacent precast vertical member by being filled with the concrete are further provided.

In the precast vertical member of the present invention, the main body and the anchor reinforcing bar can be separately transported to the site for construction, and it is possible to easily prevent bending of the anchor reinforcing bar during transportation. Further, the anchor reinforcing bar can be easily attached at the site by fitting it into the horizontal member insert of the main body. As described above, according to the vertical member installation structure of the present invention, the precast vertical member can be easily installed on the horizontal member.

In addition, about the vertical member installation method of this invention, the basic form and a peculiar form are described, and only the basic form is described about the precast vertical member of this invention. However, it goes without saying that each of the various suitable forms described for the vertical member installation structure of the present invention described above also corresponds to the vertical member installation method of the present invention and the precast vertical member of the present invention.

According to the present invention, it is possible to obtain a vertical member installation structure in which a precast vertical member can be easily installed on a horizontal member, a vertical member installation method, and a precast vertical member used in those structures and methods. ..

It is a figure which shows a part of the bridge to which one Embodiment of this invention is applied. It is a figure which shows the precast wall column shown in FIG. 1, including the internal structure. It is a side view which shows the arrow view of V11 in FIG. 2 in the precast wall balustrade. It is a side view which shows the V12 arrow view in FIG. 2 in the precast wall balustrade. It is a figure which shows typically the internal structure of the bridge shown in FIG. 1 in the cross section of the V13-V13 line passing through the anchor reinforcing bar for floor slab in FIG. It is a figure which shows typically the internal structure of the bridge shown in FIG. 1 in the cross section of the V14-V14 line passing through the air vent hole in FIG. It is a figure which shows the top view of the bridge shown in FIG. 1 when viewed from the arrow V16 in the figure together with the adhesive resin and the like sandwiched between the balustrade side region and the floor slab side region. It is a schematic diagram for demonstrating the anchor reinforcing bar attachment process, the anchor hole installation process, and the balustrade installation process. It is a schematic diagram for demonstrating the anchor bolt mounting process and the balustrade installation process. It is a figure which shows the state that the heights of the upper surfaces of the adjacent precast wall balustrades are put together so that they are substantially flush with each other in the balustrade installation process. It is a figure which shows the plastic spacer used in the balustrade installation process. It is a schematic diagram which shows the state that the non-shrinkage mortar is filled in the balustrade installation process. It is a partial perspective view which shows the balustrade installation structure of a modification by paying attention to the peripheral structure of the floor slab insert in a precast wall balustrade. FIG. 13 is a diagram schematically showing an internal structure in a cross section of the V81-V81 line passing through an anchor reinforcing bar for a floor slab in FIG.

Hereinafter, an embodiment of the present invention will be described.

FIG. 1 is a diagram showing a part of a bridge to which one embodiment of the present invention is applied.

FIG. 1 shows how the existing wall railing column 200 is repaired by using the precast wall railing column 100 (precast vertical member) according to the embodiment of the present invention for the bridge 1. .. In the example here, the portion of the existing wall balustrade 200 to be repaired is removed from the floor slab 300 (horizontal member), and the precast wall balustrade 100 is installed at the removed portion 301. Further, a plurality of precast wall balustrades 100 are arranged and installed along the longitudinal direction D11 of the floor slab 300.

FIG. 2 is a view showing the precast wall column shown in FIG. 1 including its internal structure, and FIG. 3 is a side view showing V11 arrow view in FIG. 2 in the precast wall column. 4 is a side view showing the V12 arrow in FIG. 2 in the precast wall column.

The precast wall balustrade 100 in the present embodiment includes a concrete main body 110, an anchor reinforcing bar 150 that acts as an anchor for the floor slab 300, and an anchor bolt 160 that acts as an anchor for the adjacent precast wall balustrade 100. I have.

The main body 110 has a so-called Florida-shaped shape in which concrete is cast on the internal reinforcing bars 111, the lower end portion on the floor slab 300 side overhangs, and the upper surface 110a-1 of the overhanging portion 110a is inclined toward the floor slab 300 side. It was formed in. Further, in the vicinity of the lower surface 112 of the main body 110 facing the floor slab 300 side, the floor slab insert 113 (horizontal member insert) is embedded in the lower surface 112 with an opening. Four floor slab inserts 113 are embedded in each of the plurality of buried areas 114 arranged in the longitudinal direction D11 in the vicinity of the lower surface 112.

Further, the floor slab insert 113 includes a nut portion 113a and a reinforcing bar portion 113b whose one end is connected to the nut portion 113a. The reinforcing bar portion 113b of each floor slab insert 113 is connected to the internal reinforcing bar 111 in a locked state by bending the end portion 113b-1 on the side opposite to the nut portion 113a in a U shape.

The anchor reinforcing bar 150 is a deformed reinforcing bar in which a screw portion 151 to be fitted into the nut portion 113a of the floor slab insert 113 is formed at one end, and the opposite end portion 152 serves as an anchor for the floor slab 300. The anchor rebar 150 is attached to two floor slab inserts 113 selected from the four floor slab inserts 113 in each buried area 114.

Further, a connecting insert 118 is embedded in the vicinity of the first side surface 116 of both side surfaces of the main body 110 in the longitudinal direction D11 in a state of being open to the first side surface 116. A plurality of connecting inserts 118 are provided in a row in the height direction D12 of the main body 110. The connecting insert 118 includes a nut portion 118a and a reinforcing bar portion 118b whose one end is connected to the nut portion 118a.

Further, a connecting groove 120 extending in the height direction D12 of the main body 110 is formed on the second side surface 117 of both side surfaces of the main body 110 in the longitudinal direction D11. The connecting groove 120 is a groove metal fitting 121 embedded in the second side surface 117. A groove reinforcing bar 122 having one end connected to the groove metal fitting 121 is embedded in the main body 110.

One end of the anchor bolt 160 is connected to the nut portion 118a of the connecting insert 118, and the bolt head 161 is fitted into the connecting groove 120 in the main body portion 110 of the adjacent precast wall column 100. Then, in the adjacent precast wall column 100, the connecting groove 120 is filled with non-shrink mortar as described later, thereby acting as an anchor for the adjacent precast wall column 100.

Further, as shown in FIG. 1, in the present embodiment, when installing the precast wall column 100, the upper surface 123 on the side opposite to the lower surface 112 in the main body 110 is moved to the upper surface 123 of the adjacent precast wall column 100. And the upper surface connecting metal fitting 400 are bridged. The upper surface connecting metal fitting 400 is an adjusting jig for adjusting the height of the upper surface 123 between adjacent precast wall height columns 100. As shown in FIG. 2, an upper surface connecting insert 124 to which a bolt 401 for fixing the upper surface connecting metal fitting 400 is attached is provided in the vicinity of the upper surface 123 of the main body 110.

Further, in the present embodiment, from the upper surface 110a-1 to the lower surface 112 of the overhanging portion 110a in the main body 110, air when filling a non-shrink mortar between the precast wall railing column 100 and the floor slab 300 as described later. An air vent hole 125 is provided as an escape route. The air vent hole 125 is a tapered through hole that tapers from the lower surface 112 toward the upper surface 110a-1 of the overhanging portion 110a. In the main body 110, the air vent holes 125 are provided between the plurality of buried regions 114 in a plan view from the upper surface 123.

Next, a balustrade installation structure for installing the precast wall balustrade 100 described above on the floor slab 300 will be described.

FIG. 5 is a diagram schematically showing the internal structure of the bridge shown in FIG. 1 in the cross section of the V13-V13 line passing through the floor slab anchor reinforcing bar in FIG. Further, FIG. 6 is a diagram schematically showing the internal structure of the bridge shown in FIG. 1 in the cross section of the V14-V14 line passing through the air vent hole in FIG.

In the balustrade installation structure 2 (vertical member installation structure) adopted in the bridge 1 of the present embodiment, the anchor reinforcing bar 150 is attached to the nut portion 113a of the floor slab insert 113 in the precast wall balustrade 100, and the floor slab insert The reinforcing bar portion 113b of 113 is connected to the internal reinforcing bar 111. Anchor holes 302 into which the end portion 152 of the anchor reinforcing bar 150 opposite to the floor slab insert 113 is inserted are bored in the removal portion 301 of the existing wall railing column 200 on the upper surface 300a of the floor slab 300. .. The anchor hole 302 is filled with a cement material 303 between the inner surface thereof and the inserted anchor reinforcing bar 150.

Further, between the balustrade side region 112a (vertical member side region) on the lower surface 112 of the precast wall balustrade 100 and the floor slab side region 301a (horizontal member side region) at the removal portion 301 of the floor slab 300. Adhesive resin 501 is sandwiched. The balustrade side region 112a is an region surrounding the opening of the floor slab insert 113. The balustrade side region 112a corresponds to the surface portion of the embedding region 114 of the floor slab insert 113 in the vicinity of the lower surface 112 of the precast wall balustrade 100. The floor slab side region 301a is an region that surrounds the opening of the anchor hole 302 and faces the balustrade side region 112a.

FIG. 7 is a view showing a top view of the bridge shown in FIG. 1 when viewed from arrow V16 in the drawing, together with an adhesive resin or the like sandwiched between the balustrade side region and the floor slab side region. .. In FIG. 7, the upper surface connecting metal fitting 400 is not shown so that the connecting portion between the adjacent precast wall railings 100 can be seen.

In the present embodiment, between the lower surface 112 of the precast wall balustrade 100 and the removal portion 301 on the upper surface 300a of the floor slab 300, an annular shape is formed along the outer edges of the balustrade side region 112a and the floor slab side region 301a. Adhesive resin packing 502 of the above is sandwiched. The adhesive resin 501 is filled inside the adhesive resin packing 502. The adhesive resin packing 502 is made of a sponge-based resin, and an epoxy resin is used as an example of the adhesive resin 501.

Further, a pair of linear resin packings for mortar 503 are provided along the pair of opposite edge edges 112b extending in the longitudinal direction D11 on the lower surface 112 of the precast wall railing column 100. A pair of resin packings for mortar 503 are provided over a plurality of precast wall railings 100 arranged in the longitudinal direction D11. Then, the non-shrink mortar 504 is filled in the outer region of the adhesive resin packing 502 between the pair of mortar resin packings 503.

Then, as described above and as shown in FIG. 6, an air vent hole 125 is provided from the upper surface 110a-1 to the lower surface 112 of the overhanging portion 110a of the precast wall railing column 100. The air vent hole 125 serves as an escape route for air when the non-shrink mortar 504 is filled in the region between the packings described above.

Further, the resin packing 503 for mortar is sandwiched between the adjacent precast wall balustrades 100. The resin packing 503 for mortar here extends in the height direction D12 and is provided with a pair so as to face the thickness direction D13. Then, the non-shrink mortar 504 is filled between the anchor bolt 160 of one precast wall rail 100 and the connecting groove 120 of the other precast wall rail 100, and between the pair of mortar resin packings 503. ing.

Here, in the present embodiment, the groove metal fitting 121 forming the connecting groove 120 has a shape in which the edge projects inward on the opening side. This overhanging portion plays a role of resisting the force in the direction of pulling out the anchor bolt 160 and the non-shrink mortar 504 from the connecting groove 120.

Further, in the present embodiment, as shown in FIGS. 5 and 6, in the vicinity of the outer surface of the main body 110 of the precast wall railing column 100 facing the outside of the bridge 1, the fiber net 126 is provided along the outer surface. It is buried. The fiber net 126 is provided to prevent the outer surface concrete from peeling off, and is not specified here, but is formed of fibers such as glass fiber, aramid fiber, and carbon fiber.

Next, a balustrade installation method (vertical member installation method) for installing the precast wall balustrade 100 on the floor slab 300 by adopting the balustrade installation structure 2 described above will be described.

First, the portion of the existing wall railing 200 of the bridge 1 to be repaired is removed by a cutter.

Next, the linear resin for mortar shown in FIG. 7 extends over the entire length corresponding to all of the plurality of precast wall balustrades 100 to be installed at the removal portion 301 of the existing wall balustrade 200 extending in a strip shape. A pair of packings 503 are provided. The pair of resin packings for mortar 503 are provided at the positions corresponding to the pair of opposite edge edges 112b of the lower surface 112 of the precast wall height column 100 at the removal portion 301.

After that, an anchor reinforcing bar mounting step and an anchor bolt mounting step are performed on the precast wall balustrade 100, and an anchor hole mounting step is performed on the floor slab 300. Then, a balustrade installation step (vertical member installation step) is performed in which the precast wall balustrade 100 is installed at the removal portion 301 of the existing wall balustrade 200 on the upper surface 300a of the floor slab 300.

FIG. 8 is a schematic diagram for explaining the anchor reinforcing bar mounting process, the anchor hole installation process, and the balustrade installation process, and FIG. 9 is a schematic diagram for explaining the anchor bolt mounting process and the balustrade installation process. ..

In the anchor reinforcing bar attaching step, as shown in FIG. 8, the anchor reinforcing bar 150 is attached to the floor slab insert 113 in the main body portion 110 of the precast wall railing column 100 by fitting the screw portion 151 into the nut portion 113a. .. At this time, the anchor reinforcing bar 150 is attached to two floor slab inserts 113 selected from the four floor slab inserts 113 for each buried area 114 shown in FIGS. 2 and 7.

In each buried area 114, a total of four floor slab inserts 113 are provided so that the longitudinal direction D11 × thickness direction D13 is 2 × 2. In the present embodiment, one of the floor slab inserts 113 is selected from the two arrangements in the longitudinal direction D11, and the anchor reinforcing bar 150 is attached. The selection of the floor slab insert 113 at this time is appropriately performed according to the position of the anchor hole 302 provided in the floor slab 300 in the anchor hole installation step.

In the anchor bolt attaching step, as shown in FIG. 9, the anchor bolt 160 is attached to the connecting insert 118 in the main body 110 of the precast wall railing column 100 by fitting the screw portion into the nut portion 118a.

In the anchor hole installation step, as shown in FIG. 8, the end portion 152 opposite to the screw portion 151 of the anchor reinforcing bar 150 is inserted into the removal portion 301 of the existing wall railing column 200 in the floor slab 300. Anchor hole 302 is drilled. Further, the anchor hole 302 is filled with the cement material 303. As the cement material 303, for example, a semeoforce anchor, which is an inorganic injection type anchor manufactured by Sumitomo Osaka Cement Co., Ltd., can be adopted as an example.

In the balustrade installation step, first, an annular adhesive resin packing 502 is provided on the floor slab along the outer edge of the floor slab side region 301a at the removal portion 301 sandwiched between the pair of mortar resin packings 503 on the upper surface 300a of the floor slab 300. It is arranged on the upper surface 300a of the 300. Then, the adhesive resin 501 is filled inside the adhesive resin packing 502.

Next, as shown in FIG. 9, a pair of resin packings for mortar 503 are provided on the second side surface 117 in which the connecting groove 120 is provided in the adjacent precast wall column 100 that has already been installed. These pair of resin packings for mortar 503 are provided along the pair of opposite edge edges in the thickness direction D13 on the second side surface 117.

Then, in the balustrade installation step, the precast wall balustrade 100 is placed on the floor slab 300 from above. At this time, the anchor reinforcing bar 150 is inserted into the anchor hole 302, and the bolt head 161 of the anchor bolt 160 is fitted into the connecting groove 120 of the adjacent precast wall balustrade 100. Further, the lowering of the precast wall balustrade 100 is performed slowly so that the bolt head 161 does not hit the groove metal fitting 121 forming the connecting groove 120.

Here, in the balustrade installation process, the height is adjusted so that the upper surface 123 of the precast wall balustrade 100 placed on the floor slab 300 is substantially flush with the upper surface 123 of the adjacent precast wall balustrade 100 that has already been installed. To.

FIG. 10 is a diagram showing a state in which the heights of the upper surfaces of adjacent precast wall balustrades are aligned so as to be substantially flush with each other in the balustrade installation process.

In the balustrade installation step, first, the precast wall balustrade 100 is installed from above with wedge-shaped plastic spacers 601 arranged in three places between the floor slab 300 and the upper surface 300a.

FIG. 11 is a diagram showing a plastic spacer used in the balustrade installation process.

As shown in FIG. 11, in the balustrade installation process, a plurality of wedge-shaped plastic spacers 601 having different inclination angles and sizes are prepared. In the present embodiment, the existing wall balustrade 200 is removed for repair, and a precast wall balustrade 100 is newly installed at the removed portion 301. In this case, the precast wall balustrade 100 will be installed on the uneven installation surface after removal.

In order to install the precast wall balustrade 100 horizontally on such an uneven installation surface, three are appropriately selected and arranged from a plurality of plastic spacers 601 to adjust the horizontality. These three plastic spacers 601 are arranged at the following positions. First, on the second side surface 117 side, which is the open side when the precast wall balustrade 100 is newly installed, one plastic spacer 601 is arranged near both ends in the thickness direction D13. On the other hand, on the first side surface 116 side in which the upper surface 123 is connected to the upper surface 123 of the adjacent precast wall column 100 by the upper surface connecting metal fitting 400, in the thickness direction D13, in the vicinity of the end portion away from the connecting side by the upper surface connecting metal fitting 400. One plastic spacer 601 is arranged. Further, when the plastic spacer 601 is arranged at this position, the upper surface connecting metal fitting 400 is also attached. The upper surface connecting metal fitting 400 is bridged from the upper surface 123 of the main body 110 to the upper surface 123 of the adjacent precast wall balustrade 100, and is fixed by bolts 401 so as to connect the two upper surfaces 123 to each other. The levelness is adjusted by shifting the position of the plastic spacer 601 or replacing it with another one.

In the balustrade installation step, the precast wall balustrade 100 is installed in this way so that the heights of the upper surfaces 123 of the adjacent precast wall balustrades 100 are substantially flush with each other. Then, after this, the non-shrink mortar is filled in various places.

FIG. 12 is a schematic view showing how the non-shrink mortar is filled in the balustrade installation process.

When the precast wall balustrade 100 is installed as described above, a gap is opened between the precast wall balustrade 100 and the floor slab 300, and between the adhesive resin packing 502 and the mortar resin packing 503 described above. There is. In the balustrade installation step, the filling nozzle 701 of the non-shrink mortar 504 is inserted into this gap. Since the mortar resin packing 503 is made of a sponge-based resin, the filling nozzle 701 is inserted while being deformed so as to push away the mortar resin packing 503. The non-shrink mortar 504 is filled in the gap through the filling nozzle 701. At the time of filling, the air in the gap is released from the air vent hole 125.

Along with such filling, as shown in FIG. 7, between adjacent precast wall balustrades 100, and with the anchor bolt 160 of one precast wall balustrade 100 and the connecting groove 120 of the other precast wall balustrade 100. Non-shrink mortar 504 is also filled in between. At the time of this filling, the upper surface connecting metal fitting 400 blocking the connecting groove 120 is temporarily removed. When the filling is completed, the upper surface connecting metal fitting 400 is attached again. In this state, the non-shrink mortar 504 is cured and solidified, and when the non-shrink mortar 504 is solidified to some extent, the upper surface connecting metal fitting 400 and the above three plastic spacers 601 are removed. This completes the balustrade installation process (that is, the balustrade installation method). When a new precast wall balustrade 100 is subsequently installed, the balustrade installation method described above is repeated.

In the balustrade installation structure 2, the balustrade installation method, and the precast wall balustrade 100 of the present embodiment described above, the precast wall balustrade 100 is a main body 110 that is separate from the anchor reinforcing bar 150 that acts as an anchor for the floor slab 300. It has. As a result, the precast wall balustrade 100 can be constructed by separately transporting the main body 110 and the anchor reinforcing bar 150 to the site, and it is possible to easily prevent bending of the anchor reinforcing bar 150 during transportation. Can be done. Further, the anchor reinforcing bar 150 can be easily attached at the site by fitting it into the floor slab insert 113 of the main body 110. As for the floor slab 300, it is only necessary to drill the anchor hole 302 and fill the cement material 303. As described above, according to the balustrade installation structure 2, the balustrade installation method, and the precast wall balustrade 100 of the present embodiment, the precast wall balustrade 100 can be easily installed on the floor slab 300.

Here, in the present embodiment, the adhesive resin 501 is sandwiched between the balustrade side region 112a on the lower surface 112 of the precast wall balustrade 100 and the floor slab side region 301a on the upper surface 300a of the floor slab 300. The adhesive resin 501 enhances the installation strength of the precast wall balustrade 100.

Further, in the present embodiment, the adhesive resin 501 is filled inside the adhesive resin packing 502 sandwiched between the lower surface 112 of the precast wall column 100 and the upper surface 300a of the floor slab 300, and outside the adhesive resin packing 502. Is filled with non-shrink mortar 504. As a result, the amount of the adhesive resin 501, which tends to be expensive, can be suppressed, so that the construction cost can be reduced. Further, by using the adhesive resin packing 502, the outflow of the adhesive resin 501 before curing can be suppressed, so that the precast wall column 100 can be installed more easily while reducing the construction cost as described above. it can. Further, the non-shrink mortar 504 on the outside of the adhesive resin packing 502 further enhances the installation strength of the precast wall railing column 100.

Further, in the present embodiment, four floor slab inserts 113 are embedded in each of the plurality of buried areas 114 arranged in the longitudinal direction D11. As a result, first, the installation strength of the precast wall balustrade 100 is increased. Then, from the embedded floor slab insert 113, the one used for installing the precast wall railing column 100 can be selected based on, for example, the position of the anchor hole 302 determined by the structure of the floor slab 300. There is. Therefore, the precast wall balustrade 100 can be more easily installed on the floor slab 300.

Further, in the present embodiment, the floor slab insert 113 includes a nut portion 113a into which the screw portion 151 of the anchor reinforcing bar 150 is fitted, and a reinforcing bar portion 113b whose one end is connected to the nut portion 113a. As a result, the installation strength of the precast wall balustrade 100 can be further increased.

Further, in the present embodiment, the reinforcing bar portion 113b of the floor slab insert 113 has an end portion 113b-1 on the side opposite to the nut portion 113a side connected to the internal reinforcing bar 111 of the main body portion 110. As a result, the embedding strength of the floor slab insert 113 is further enhanced by connecting the reinforcing bar portion 113b to the internal reinforcing bar 111, so that the installation strength of the precast wall railing column 100 can be further enhanced.

Further, in the present embodiment, the anchor bolt 160 used for connecting the adjacent precast wall railings 100 can also be transported to the site separately from the main body 110, so that the anchor bolt 160 can be prevented from bending during transportation. Can be easily realized. Further, the anchor bolt 160 can be easily attached at the site by fitting it into the connecting insert 118 of the main body 110. As described above, according to the present embodiment, the precast wall balustrade 100 can be more easily installed on the floor slab 300 from the viewpoint of connecting the adjacent precast wall balustrades 100 to each other.

Further, in the present embodiment, the connecting insert 118 includes a nut portion 118a into which one end of the anchor bolt 160 is fitted, and a reinforcing bar portion 118b having one end connected to the nut portion 118a. As a result, the strength of the connecting insert 118 is also increased, so that a high connecting strength can be obtained for the adjacent precast wall height columns 100.

Further, in the present embodiment, the connecting groove 120 is a groove metal fitting 121 embedded in the second side surface 117 of the main body 110. As a result, the strength of the connecting groove 120 is also increased, so that a higher connecting strength can be obtained for the adjacent precast wall height columns 100.

Further, in the present embodiment, a groove reinforcing bar 122 having one end connected to the groove metal fitting 121 is embedded in the main body 110. Since the strength of the connecting groove 120 is further enhanced by the groove reinforcing bar 122, it is possible to obtain a higher connecting strength between the adjacent precast wall railings 100.

Further, in the balustrade installation method in the present embodiment, the horizontality of the main body 110 is adjusted by arranging the plastic spacers 601 at three places in the balustrade installation step. Further, the heights of the two upper surfaces 123 are matched by using the upper surface connecting metal fitting 400 that is bridged from the upper surface 123 of the main body 110 to the adjacent upper surface 123 and connects the two upper surfaces 123 to each other. As a result, even if the installation surface of the precast wall balustrade 100 has irregularities due to the removal of the existing wall balustrade 200, the height position of the upper surface 123 is aligned between the adjacent precast wall balustrades 100 and the levelness is high. Can be installed. As a result, high installation strength can be obtained, and a good appearance after installation can be obtained.

Next, a modified example of the balustrade installation structure 2 in the present embodiment will be described. In this modification, the peripheral structure of the floor slab insert 113 is different from that of the present embodiment. Hereinafter, a modified example will be described focusing on this difference.

FIG. 13 is a partial perspective view showing the balustrade installation structure of the modified example, paying attention to the peripheral structure of the floor slab insert in the precast wall balustrade. Further, FIG. 14 is a diagram schematically showing the internal structure in the cross section of the V81-V81 line passing through the floor slab anchor reinforcing bar in FIG. In addition, in FIGS. 13 and 14, the same reference numerals as those in FIGS. 1 to 12 are attached to the components equivalent to the components of the balustrade installation structure 2 described with reference to FIGS. 1 to 12. In the following, duplicate description of these equivalent components will be omitted.

Even in the balustrade installation structure 9 of the bridge 8 of the modified example, the floor slab insert 913 includes a nut portion 913a into which the anchor reinforcing bar 150 is fitted, and a reinforcing bar portion 913b whose one end is connected to the nut portion 913a. However, in this modified example, the reinforcing bar portion 913a of the floor slab insert 913 is not connected to the internal reinforcing bar 111 of the main body portion 910. In this modified example, the reinforcing bar portion 913a is connected to the rectangular plate-shaped insert fitting 916 embedded substantially parallel to the lower surface 912 of the main body portion 910 by welding.

Needless to say, even in the balustrade installation structure 9 of this modified example, the precast wall balustrade 900 can be easily installed on the floor slab 300 as in the balustrade installation structure 2 of the above-described embodiment. Further, in this modified example, since the embedding strength of the reinforcing bar portion 913a of the floor slab insert 913 is strengthened by connecting to the insert metal fitting 916, the installation strength of the precast wall balustrade 900 is enhanced. There is. However, in the balustrade installation structure 2 of the above-described embodiment, the embedding strength of the reinforcing bar portion 113b of the floor slab insert 113 is strengthened by using the internal reinforcing bar 111, which is advantageous in terms of manufacturing cost.

It should be noted that the above-described embodiments and modifications merely show typical embodiments of the present invention, and the present invention is not limited to these embodiments and modifications. That is, those skilled in the art can carry out various modifications according to conventionally known knowledge within a range that does not deviate from the gist of the present invention. Even with such deformation, as long as the vertical member installation structure of the present invention, the vertical member installation method, and the configuration of the precast vertical member are still provided, it is, of course, included in the category of the present invention.

For example, in the above-described embodiments and modifications, the balustrade installation structures 2 and 9 adopted in the bridges 1 and 8 are examples of the vertical member installation structure, the vertical member installation method, and the precast vertical member according to the present invention. , The method of installing the plumb bob, and the precast wall plumb bob 100, 900 are illustrated. However, the vertical member installation structure, the vertical member installation method, and the precast vertical member referred to in the present invention are not limited to these, and for example, the installation structure, the installation method, and the installation method in which the precast vertical wall is installed on the floor board of a building. It may be a precast vertical wall or the like. That is, the vertical member installation structure, the vertical member installation method, and the precast vertical member referred to in the present invention generally ask a specific member configuration, etc., as long as the precast vertical member is installed on the horizontal member. is not it.

Further, in the above-described embodiments and modifications, as an example of each of the vertical member installation structure, the vertical member installation method, and the precast vertical member according to the present invention, the balustrade installation for repairing the existing bridges 1 and 8 is applied. Structures 2 and 9, balustrade installation methods, and precast wall balustrades 100 and 900 are illustrated. However, the vertical member installation structure, the vertical member installation method, and the precast vertical member according to the present invention are not limited to these. For example, the installation structure, the installation method, the precast vertical member, and the like may be used for the case where the horizontal member is cast in the field and the vertical member is made of precast when the structure is newly constructed. That is, the vertical member installation structure, the vertical member installation method, and the precast vertical member referred to in the present invention do not question the existing or new installation of the application target.

Further, in the above-described embodiments and modifications, so-called Florida-type precast wall height columns 100 and 900 are exemplified as an example of the precast vertical member according to the present invention. However, the precast vertical member referred to in the present invention is not limited to the Florida type, and can be set to any shape.

Further, in the above-described embodiments and modifications, the following floor slab insert 113 and anchor reinforcing bar 150 are exemplified as examples of the horizontal member insert and anchor reinforcing bar according to the present invention. That is, four floor slab inserts 113 embedded in each buried area 114 and anchor reinforcing bars 150 attached to two floor slab inserts 113 selected from the four floor slab inserts 113 are exemplified. .. However, the horizontal member inserts and anchor reinforcing bars referred to in the present invention are not limited to this, and anchor reinforcing bars may be attached to all of the horizontal member inserts embedded in each buried area. Further, the number of horizontal member inserts buried in the buried area is not limited to four, and may be another number. Alternatively, the horizontal member inserts and anchor reinforcing bars may be provided one by one for one precast vertical member. However, by providing a plurality of buried areas and burying a plurality of horizontal member inserts in each buried area, it is possible to enhance the installation strength of the precast vertical member and facilitate the installation of the precast vertical member. Is as described above.

Further, in the above-described embodiments and modifications, as an example of the adhesive resin referred to in the present invention, the adhesive resin packing 502 sandwiched between the lower surface 112 of the precast wall column 100 and the upper surface 300a of the floor slab is filled. The adhesive resin 501 is exemplified. However, the adhesive resin referred to in the present invention is not limited to this, and is, for example, one sandwiched between a lower surface of a precast vertical member and a portion of the upper surface of a horizontal member facing the lower surface over substantially the entire surface. You may. However, by providing the adhesive resin 501 only inside the adhesive resin packing 502, the construction cost can be reduced by suppressing the amount of the adhesive resin used, and the installation can be facilitated by suppressing the outflow of the adhesive resin during construction. The points that can be achieved are as described above.

1,8 Bridges 2,9 Banquet installation structure (vertical member installation structure)
100,900 Precast wall balustrade (precast vertical member)
110,910 Main body 110a Overhanging part 110a-1 Upper surface 111 Internal reinforcing bars 112,912 Lower surface 112a Ban side area (vertical member side area)
113 Floor slab insert (horizontal member insert)
113a, 118a Nuts 113b, 118b Reinforcing bar 113b-1 End 114 Buried area 116 1st side surface 117 2nd side surface 118 Connecting insert 120 Connecting groove 121 Groove metal fittings 122 Grooving reinforcing bar 123 Top surface 124 Top surface connecting insert 125 Air bleeding Hole 150 Anchor rebar 151 Threaded part 152 Other end 160 Anchor bolt 161 Bolt head 200 Existing wall balustrade 300 Floor slab (horizontal member)
300a Top surface 301 Removal point 301a Floor slab side area (horizontal member side area)
302 Anchor hole 303 Cement material 400 Top connecting metal fittings 401 Bolt 501 Adhesive resin 502 Adhesive resin packing 503 Resin packing for mortar 504 Non-shrink mortar 601 Plastic spacer 701 Filling nozzle D11 Longitudinal direction D12 Height direction D13 Thickness direction

Claims (9)

A vertical member installation structure in which a precast vertical member is installed along a predetermined longitudinal direction on a horizontal member extending in a predetermined longitudinal direction.
The precast vertical member
A main body made of concrete and in which an insert for a horizontal member is embedded in a state of being opened in the lower surface in the vicinity of the lower surface facing the horizontal member side.
One end is formed with a threaded portion to be fitted into the horizontal member insert, and the other end is provided with an anchor reinforcing bar that acts as an anchor for the horizontal member.
On the upper surface of the horizontal member facing the precast vertical member side, the other end of the anchor reinforcing bar is inserted and an anchor hole filled with a cement material is formed.
The lower surface of the precast vertical member faces at least the vertical member side region surrounding the opening of the horizontal member insert, and the upper surface of the horizontal member faces at least the vertical member side region surrounding the opening of the anchor hole. An adhesive resin is sandwiched between the horizontal member side region and the horizontal member side region.
An annular resin packing is sandwiched between the lower surface of the precast vertical member and the upper surface of the horizontal member along the outer edges of the vertical member side region and the horizontal member side region. The vertical member installation structure is characterized in that the adhesive resin is filled inside the resin packing. The vertical member installation according to claim 1, wherein the outside of the resin packing between the lower surface of the precast vertical member and the upper surface of the horizontal member is filled with non-shrink mortar. Construction. A vertical member installation structure in which a precast vertical member is installed along a predetermined longitudinal direction on a horizontal member extending in a predetermined longitudinal direction.
The precast vertical member
A main body made of concrete and in which an insert for a horizontal member is embedded in a state of being opened in the lower surface in the vicinity of the lower surface facing the horizontal member side.
One end is formed with a threaded portion to be fitted into the horizontal member insert, and the other end is provided with an anchor reinforcing bar that acts as an anchor for the horizontal member.
On the upper surface of the horizontal member facing the precast vertical member side, the other end of the anchor reinforcing bar is inserted and an anchor hole filled with a cement material is formed.
Each of the precast vertical members extends in the longitudinal direction, and a plurality of the precast vertical members are arranged and installed along the longitudinal direction.
A connecting insert is embedded in the vicinity of the first side surface of both side surfaces of the precast vertical member in the longitudinal direction in the main body portion in a state of being open to the first side surface, and the main body is formed on the second side surface. A connecting groove extending in the height direction of the portion is formed.
One end is connected to the connecting insert, the bolt head is fitted into the connecting groove in the main body of the adjacent precast vertical member, and the connecting groove is filled with non-shrink mortar to be adjacent. A vertical member installation structure, characterized in that the precast vertical member is further provided with an anchor bolt that acts as an anchor for the precast vertical member. A vertical member installation method in which a precast vertical member is installed along a predetermined longitudinal direction on a horizontal member extending in a predetermined longitudinal direction.
The precast vertical member is made of concrete, and is fitted into the horizontal member insert at one end and a main body portion in which the horizontal member insert is embedded in the vicinity of the lower surface facing the horizontal member side. A threaded portion is formed, and the other end is provided with an anchor reinforcing bar that acts as an anchor for the horizontal member.
Anchor reinforcing bar attaching step of attaching the anchor reinforcing bar to the horizontal member insert in the main body of the precast vertical member, and
An anchor hole installation step of drilling an anchor hole into which the other end of the anchor reinforcing bar is inserted and filling the anchor hole with a cement material on the upper surface of the horizontal member facing the precast vertical member side.
A vertical member installation step of installing the precast vertical member on the upper surface of the horizontal member so as to insert the other end of the anchor reinforcing bar into the anchor hole of the horizontal member.
The vertical member installation step is a step of applying an adhesive resin to at least a horizontal member side region surrounding the opening of the anchor hole on the upper surface of the horizontal member, and installing the precast vertical member on the upper surface of the horizontal member. Further, it is a step of arranging an annular resin packing on the upper surface of the horizontal member along the outer edge of the horizontal member side region and filling the inside of the resin packing with an adhesive resin. How to install vertical members. The vertical member installation method according to claim 4, wherein the vertical member installation step is a step of filling the outside of the resin packing with non-shrink mortar after the installation of the precast vertical member. A vertical member installation method in which a precast vertical member is installed along a predetermined longitudinal direction on a horizontal member extending in a predetermined longitudinal direction.
The precast vertical member is made of concrete, and is fitted into the horizontal member insert at one end and a main body portion in which the horizontal member insert is embedded in the vicinity of the lower surface facing the horizontal member side. A threaded portion is formed, and the other end is provided with an anchor reinforcing bar that acts as an anchor for the horizontal member.
Anchor reinforcing bar attaching step of attaching the anchor reinforcing bar to the horizontal member insert in the main body of the precast vertical member, and
An anchor hole installation step of drilling an anchor hole into which the other end of the anchor reinforcing bar is inserted and filling the anchor hole with a cement material on the upper surface of the horizontal member facing the precast vertical member side.
A vertical member installation step of installing the precast vertical member on the upper surface of the horizontal member so as to insert the other end of the anchor reinforcing bar into the anchor hole of the horizontal member.
The precast vertical member extends in the longitudinal direction.
The vertical member installation step is a step of arranging and installing a plurality of the precast vertical members along the longitudinal direction of the horizontal member.
A connecting insert is embedded in the vicinity of the first side surface of both side surfaces of the precast vertical member in the longitudinal direction in the main body portion in a state of being open to the first side surface, and the main body is formed on the second side surface. A connecting groove extending in the height direction of the portion is formed, and the precast vertical member further includes an anchor bolt that acts as an anchor to the adjacent precast vertical member.
In the vertical member installation step, one end of the anchor bolt is attached to the connecting insert, and the bolt head of the anchor bolt is fitted into the connecting groove in the main body of the adjacent precast vertical member. A method for installing a vertical member, which comprises installing the precast vertical member in a vertical member and then filling the connecting groove with non-shrinkable mortar. In the vertical member installation step, the levelness of the main body is adjusted by arranging spacers at a plurality of locations between the lower surface of the main body and the upper surface of the horizontal member, and the horizontal member is provided. The precast is made by adjusting the heights of the two upper surfaces by using an upper surface connecting metal fitting that is bridged from the upper surface opposite to the lower surface to the upper surface of the adjacent vertical member made of precast and connects the two upper surfaces to each other. The method for installing a vertical member according to claim 6, wherein the process is for installing the vertical member. A precast vertical member installed along the longitudinal direction on a horizontal member extending in a predetermined longitudinal direction.
A main body made of concrete and in which an insert for a horizontal member is embedded in a state of being opened in the lower surface in the vicinity of the lower surface facing the horizontal member side.
One end is formed with a threaded portion to be fitted into the horizontal member insert, and the other end is provided with an anchor reinforcing bar that acts as an anchor for the horizontal member.
Wherein the lower surface such that said annular resin packing along the outer edge of the adhesive resin pinched inward between the upper surface of the horizontal member is filled, the vertical member side surrounding the opening of at least the horizontal member insert A precast vertical member characterized in that a region is provided. A precast vertical member installed along a longitudinal direction on a horizontal member extending in a predetermined longitudinal direction, and each of the precast vertical members extends in the longitudinal direction and extends in the longitudinal direction. Multiple units are arranged and installed along the line.
A main body made of concrete and in which an insert for a horizontal member is embedded in a state of being opened in the lower surface in the vicinity of the lower surface facing the horizontal member side.
One end is formed with a threaded portion to be fitted into the horizontal member insert, and the other end is provided with an anchor reinforcing bar that acts as an anchor for the horizontal member.
A connecting insert is embedded in the vicinity of the first side surface of both side surfaces in the longitudinal direction of the main body portion in a state of being open to the first side surface, and a connecting insert is embedded in the second side surface in the height direction of the main body portion. An extending connecting groove is formed,
One end is connected to the connecting insert, the bolt head is fitted into the connecting groove in the main body of the adjacent precast vertical member, and the connecting groove is filled with non-shrink mortar to be adjacent. The precast vertical member is further provided with an anchor bolt that acts as an anchor for the precast vertical member.

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