JPH0654041B2 - ALC wall panel mounting structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a structure for mounting a lightweight aerated concrete (ALC) wall panel cured by high temperature and high pressure steam that constitutes a building wall of a building.

<Prior Art> As a conventional ALC wall mounting structure, a countersink hole b is provided in a panel a built as shown in FIG. 8, and the panel a is welded to a steel frame with a bolt c, a washer d and a nut e. There is a method of fixing to the angle f.

However, with this method, it is necessary to fill the spot excavation hole with repair mortar and finish the spot excavation repair part in a state similar to the panel surface, so the work is complicated and the construction efficiency is poor. In addition, this spot excavation repair part may remain as uneven color after exterior finishing with a spray paint for construction, etc., or the base material and repair mortar due to vibration of the bolts during drying shrinkage or earthquake of repair mortar. In some cases, the design of the panel surface may be impaired, such as cracking at the boundary of.

Therefore, as shown in FIG. 9, a method of embedding a panel mounting bracket in the ALC panel manufacturing process may be considered, but with this method, the position of the panel mounting bracket is different depending on the building, and the types are very large. It takes a lot of work in manufacturing. Moreover, it is not possible to deal with the case where the mounting position is changed during construction on site, or when the dimension such as the length or width of the panel is changed.

Further, as shown in FIGS. 10 (a) and 10 (b), the mounting bracket j is integrated with the binding material h and the mortar i in the assembly hole g used to assemble the panel, and the mounting bracket is supported by the panel. There is also a method of attaching the panel to the structural body by connecting it to a member. However, this method requires drilling a large hole penetrating the panels in the parallel direction in order to assemble the panels, and it is difficult to drill this hole with a handy type drill on site. In addition, the panel cannot be attached to the structural body until the strength of the mortar develops. Furthermore, if this method is applied to each panel instead of the laminated panel, it takes time and labor to fill the mortar with each panel.

On the other hand, as the seismic isolation mounting method, the ALC panel is the first
There is a slide construction method shown in Fig. 1. With this mounting structure,
As shown in Fig. 11 (e), the panel slides and deforms at the lateral joints in each layer during an earthquake, causing a large shear deformation of the lateral joint sealing material, and also at the vertical joints around the columns. Because of the large tensile deformation, the sealing material is easily cut and it is difficult to maintain the waterproof performance.

In addition, since each layer is slid and deformed, large deformations require expansion joints with a large width at the projected corners, etc. Normally, expansion and contraction joints of about 2 cm are provided. Can be said to be the inter-layer displacement 1/150 limit. Thus, there is a limit to the absorption performance during large deformation.

<Purpose of the present invention> The present invention is intended to solve the above-mentioned problems of the prior art all at once, and (1) according to the situation of the structural frame at the construction site, the width of the panel It can be quickly installed at any position along almost the center, using a simple tool. (2) It has an excellent design appearance with no spotted repair marks on the panel mounting part, and (3) Structure during an earthquake Provide a mounting structure for an ALC wall panel that keeps joint waterproofing performance by reducing joint misalignment between panels and suppressing joint deformation while maintaining high conformability to body deformation. That is the purpose.

<Means for Solving Problems> The present invention has achieved the above object by the following structure. That is, a long hole is provided on the long side edge face of the panel in a direction perpendicular to the face, and a countersink hole that meets the inside of the panel is formed from the center of the panel inner side surface in the panel width direction to the face. The rod-shaped or tubular steel material that is formed in the vertical direction and that is inserted from the long hole has a threaded portion that is inserted from the counterbore hole at one end and an insertion hole that allows the steel material to be inserted at the other end. By penetrating the insertion hole of the mounting bracket, the steel member is engaged inside the panel in a state where it is not integrated with the mounting bracket by a wet material, and the mounting bracket is rotatable in the in-plane direction on the panel supporting member. The ALC wall panel mounting structure is characterized in that the panel is supported by a panel self-weight receiving metal piece that is connected and further provided in contact with a lower end of a substantially central portion of the panel width.

<Examples> The details will be described below with reference to illustrated examples.

FIG. 1 is a cutaway perspective view of a main part of an embodiment of the present invention, and FIG. 2 is an explanatory view for explaining the structure of the main part according to a construction procedure.

At the ALC panel mounting site, a long hole 1f is formed at a predetermined position on the long side edge of the panel 1 in a direction perpendicular to the surface, and a countersink hole 1e is formed from the panel inner surface to reach the long hole 1f perpendicularly to this surface. Open The long hole 1f may be a hole after pulling out the set rod for holding the reinforcing steel car at the time of manufacturing the ALC panel.

Then, the mounting member 3 is then inserted into the seat hole 1e. The fitting 3 has a panel locking screw at one end and an engaging hole 3a at the other end. The engaging hole 3a is inserted into the counterbore 1e up to the long hole 1f. On the other hand, the bar-shaped steel material 2 has a long hole 1
It is inserted in f, penetrates the engagement hole 3a, and engages with the fitting 3.

In this way, since the mounting member 3 is engaged with the rod-shaped steel material 2 in a state where it is not integrated with a wet material, the position of the elongated hole 1f can be arbitrarily provided according to the body side.

It is not necessary to fill the long holes 1f and the counterbored holes 1e with a wet material such as mortar and adhesive.

The long hole 1f and the countersink hole 1e can be easily drilled by a handy type electric drill that is generally used at construction sites.

For example, the time used to open a long hole 1f having a diameter of 9 to 20 mmφ and a length of 40 cm is about 15 seconds using a blade of a commercially available woodworking drill, and a spot excavation having a diameter of 10 to 30 mmφ and a depth of 80 mm. In the hole 1e, it took about 5 seconds.

FIG. 3 is an example of a mounting bracket.

The mounting bracket 3 may have a panel locking screw 3b at one end and an engaging hole 3a at the other end. The panel locking screw 3b may be a male screw or a female screw. Also, even if the engagement hole 3a has an annular shape as shown in FIG.
A part of the annular shape may be omitted as shown in (b), or a semi-circular shape as shown in FIG. 3 (c), as long as the rod-shaped steel material 2 can be held. The rod-shaped steel material 2 may be tubular.

FIG. 4 shows an example in which the ALC panel 1 is attached to the structural body 10 using the attachment fitting 3.

1a is a panel lower part, 1b is a panel upper part, 10 is a structural frame, 4 is a support member connected to the structural frame 10 through an angle, and 5 is a supporting member directly connected to the structural frame 10.

The locking screw portion 3b of the mounting member 3 attached to the lower portion 1a of the upper layer panel penetrates the support member 4 and is attached by a nut 13.

The threaded portion 3b of the mounting member 3 attached to the upper portion 1b of the lower layer panel penetrates the support member 5 and is attached with a nut 13.

In order to support the lower part of the panel 1, the panel self-supporting hardware 8
Exists in the central portion of the panel width corresponding to the position of the mounting bracket 3, and in this figure, the panel weight receiving hardware 8 is fixed to the angle 9.

FIG. 5 shows another embodiment in which the ALC panel 1 is attached to the structural body 10.

FIG. 7 is an external view showing the movement of the panel when the structural body is deformed, and FIGS. 6 (a), 6 (b) and 6 (c) are cross-sectional views of the mounting portion. The joint filler of the ALC panel is a joint only with sealing, and the panel is rotatably mounted in the in-plane direction on a support member connected to the structural body 10 by a mounting bracket 3, and the panel self-weight receiving member Since it exists almost in the center of the panel width, there is no noticeable damage to the panel due to the deformation of the structural frame at the time of an earthquake.
Rocking deforms as shown. One panel length 3
When the horizontal displacement of 1/100 occurs at m, there is no displacement of the horizontal joints and 6 mm occurs when the panel width is 600 mm and the mutual displacement of the panels at the vertical joints.

On the other hand, in the case of the slide method which is the conventional technique shown in FIG. 11, when displacement occurs under the same conditions, there is no displacement in the vertical joints, but a displacement of 30 mm occurs in the horizontal joints.

As described above, in the case of the locking method of the present invention, the deformation of the sealing material at the joints is greatly reduced as compared with the slide method, so that the sealing material is less likely to break and the waterproof joint is highly reliable. The structure can be obtained.

Next, the strength of the panel mounting portion according to the present invention will be described.

A commonly used ALC wall panel has a width of 0.6 m, a length of 3 to 3.5 m, and a design wind load of 160 kgf / m ² . Therefore, assuming that the panel length is 3.2 m and the safety factor is 2.5, the strength of the mounting part per location will need to be about 200 kg under negative pressure.

Therefore, dimensions 0.6 x 3.2 m, thickness 100 mm, design load 160
In the strength test of the mounting part according to the present invention using the panel of Kgf / m ² bar arrangement, the long hole 1f is approximately 75 mm inward from the short side at the center of the panel thickness and 11 mmφ in parallel with the short side. The rod-shaped steel material 2 having an outer diameter of 10 mmφ and a length of 20 cm is distributed evenly to the left and right by 10 cm centering on the countersink hole 1e provided at the center of the panel width, as shown in FIG. 3 (a). When the mounting bracket was used, the tensile strength in the negative out-of-plane direction was measured and found to be 419 Kgf.

Thus, according to the configuration of the present invention, mortar or
Without using a wet material such as an adhesive material, even an ALC panel having a small base material strength can obtain sufficient strength necessary for mounting.

<Effects of the Invention> The present invention is as described above, and has the following effects in practice.

The mounting hardware can be mounted at any position along the center of the panel width depending on the condition of the structural frame at the construction site.

Moreover, it is possible to easily and quickly perform drilling work for mounting with a general-purpose hand-held type electric drill.

Sufficient mounting strength can be obtained without filling the space between the mounting bracket and the insertion hole with a wet material such as grout or adhesive.

Therefore, the mounting bracket can be incorporated into the panel and immediately attached to the structural body without waiting for strength to develop.

Moreover, an appearance with excellent design is obtained with no spotted repair marks on the panel mounting part.

In addition, since the panel weight receiving hardware is present in the center of the panel width, the panel is not conspicuously damaged, and it is possible to follow the deformation of the skeleton during an earthquake. Since it is small, the deformation applied to the sealing material is small and a highly reliable waterproof joint can be obtained.

[Brief description of drawings]

FIG. 1 is a cutaway perspective view showing the structure of the main part of the embodiment of the present invention, FIG. 2 is an explanatory view of the construction procedure of the structure of the main part, and FIG. FIG. 4 is a state diagram showing attachment of an ALC panel to a structural body according to an embodiment of the present invention, FIG. 5 is a cross-sectional view showing another embodiment, and FIG. 6 is a cross-sectional view of the panel. FIG. 7 and FIG. 7 are external views for explaining the movement of the panel when it is subjected to deformation such as an earthquake in a state where the ALC panel is attached to the structural body by the attachment structure of the present invention, and FIGS. Each of the drawings is an explanatory view showing a mounting state according to a conventional technique. 1 ... ALC panel, 2 ... bar steel, 3 ... mounting bracket, 4 ... support member, 5 ... support member, 10 ... structural frame, 1e ... spot hole, 1f ... long hole, 3a ...... Engagement holes,
3b ... Locking screw, 8 ... Panel weight receiving hardware

Claims (1)

[Claims] 1. A long hole on the long side edge of a panel is provided with a long hole in a direction perpendicular to the face, and a counterbore hole which is associated with the long hole in the inside of the panel is formed from substantially the center of the panel inner side surface in the panel width direction. The rod-shaped or tubular steel material that is formed in the direction perpendicular to the surface and that is inserted from the long hole has a threaded portion that is inserted from the counterbore hole at one end and that has an insertion hole that allows the steel material to be inserted. The steel material is engaged inside the panel in a state where the steel material is not integrated with the mounting metal fitting by a wet material by penetrating the insertion hole of the mounting metal fitting at the end, and the mounting metal fitting is in the in-plane direction on the panel support member. Rotatably connected,
Further, an ALC wall panel mounting structure characterized in that the panel is supported by a panel weight receiving member provided in contact with the lower end of the panel width substantially at the center.