JP6715079B2 - Building connection structure - Google Patents

Description

The present invention relates to a connection structure for buildings.

In the expansion joint of Patent Document 1 below, one movable plate (floor material) is installed so as to straddle two structures (buildings A and B), and when each structure is displaced by an earthquake, the movable plate is moved. Slides on each structure to absorb the relative displacement between the two structures.

JP, 2004-44205, A

However, in Patent Document 1 described above, since only one movable plate (floor member) is bridged between two structures, it is necessary to enlarge the movable plate in order to absorb a large displacement generated between each structure. There is. If the movable plate is made larger, the weight becomes heavier, which makes it difficult to slide the movable plate during an earthquake, resulting in unstable operation.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a connection structure for a building that can absorb a large displacement of the building without using a large floor material.

The connection structure for a building according to claim 1, wherein a plurality of ridges arranged to face each other with a space therebetween, and a plurality of bridges bridged between the ridges and slidably and rotatably connected to the ridge. Between the connecting means and the ridge, a beam member supported by the plurality of connecting means and rotatably connected to the plurality of connecting means, and between one of the ridge and the beam member And between the other ridge and the beam, and a pair of one end slidably supported in the longitudinal direction of the beam and the other end slidably supported by the ridge. possess and floor covering, the,
The connecting means includes a plurality of connecting beams in which long groove portions formed in a longitudinal direction with respect to a fixed shaft fixed to the slab of the ridge are slidably and rotatably connected.

According to the building connection structure of the first aspect, since the two buildings are opposed to each other with a space therebetween, they are independently displaced during an earthquake. Although the connecting means is bridged between the two buildings, the connecting means is slidably and rotatably connected to the building, so that the building is not restricted by the connecting means and is not damaged.

Further, a beam member is arranged between the ridges, and the beam member is supported by a plurality of connecting means and is rotatably connected to the connecting means. Therefore, even if each building is displaced during an earthquake, the beam material is retained between the buildings.

Further, floor materials are bridged between this beam and one ridge and between this beam and the other ridge. Since this floor material is slidably supported in each building, when the two buildings are displaced in the direction to bring the facing surfaces into contact with each other, each building slides with respect to the floor material and the displacement of the building is prevented. Can be absorbed. That is, the relative displacement of the two buildings can be absorbed by the two floor materials. Therefore, compared with the case where one floor material is bridged over two buildings, a large displacement of the building can be absorbed without using a large floor material.

In addition, since this floor material is slidably supported in the longitudinal direction of the beam material, when the two ridges are displaced in the direction in which the facing surfaces are displaced (the direction along the facing surface), each floor material is It shifts in different directions in the longitudinal direction of the material. That is, the relative displacement of the two buildings can be absorbed by the two floor materials. For this reason, the amount of displacement per floor material, that is, the amount of displacement absorption, is about half compared to the case where one floor material is bridged over two buildings and the relative displacement of the two buildings is absorbed. Therefore, the floor material can absorb a large displacement in the direction in which the opposing surfaces of the two buildings are displaced.

Connecting the building structure according to claim 2, wherein the connecting means, said slab extending to opposite surfaces parallel to disposed long groove provided at both ends to the movable shaft slide and rotation of said slab It further comprises a plurality of connecting beams that are connected as possible.

According to the building connection structure of the second aspect, the movable shaft at the end of the first connecting beam is slidably and rotatably connected to the long groove portion extended to the slab of each ridge. Therefore, when the two buildings are displaced in the direction in which the facing surfaces are brought into contact with each other, the first connecting beam slides and rotates following the displacement of the two buildings. A plurality of the first connecting beams are provided, and one beam member is rotatably connected to the first connecting beams. Therefore, even if the first connecting beam slides and rotates, the beam member does not move with respect to each building and is held between the two buildings.

The long groove portion of the second connecting beam is slidably and rotatably connected to the fixed shaft fixed to the slab of each building. Therefore, when the two buildings are displaced in the directions in which the facing surfaces are displaced from each other, the second connecting beam slides and rotates along the straight line connecting the fixed axes of the two buildings. At this time, since the connecting position where the beam member is rotatably connected to the second connecting beam is arranged between the fixed shafts of the two buildings, the beam material is held between the two displaced buildings.

Therefore, the beam member is always arranged in a predetermined position between the two buildings. Therefore, the floor material can be reliably supported.

In the connection structure for a building according to claim 3, a stud is erected at an end portion of the beam member, and a first wall panel that covers between the one ridge and the stud is attached to the stud at normal times. A second wall panel that covers a space between the other ridge and the studs is normally attached to the other ridge.

According to the building connection structure of the third aspect, the wall panel between the two buildings is constituted by the first wall panel and the second wall panel. Therefore, the weight per panel is small and the support mechanism can be simplified as compared with the case where the wall panel between the two buildings is composed of one sheet. In addition, the area per panel is small and it is not easily affected by wind pressure.

The connection structure for a building according to claim 4, wherein a joint portion that slidably connects one end of the floor material and the other end of the floor material in the longitudinal direction of the beam, and the beam The floor material fall prevention mechanism includes a plate member extending along the longitudinal direction and an engaging portion formed in the joint portion and engaging with the plate member.

According to the building connection structure of the fourth aspect, the engaging portion formed in the joint portion of the plate member of the beam and the floor member is engaged. As a result, the one and the other floor materials slide along the longitudinal direction of the beam material. Further, it is possible to prevent a gap from being generated between the floor materials, and it is possible to suppress the floor materials from falling off from the beam material.

According to the building connection structure of the present invention, a large displacement of the building can be absorbed without using a large floor material.

(A) is a vertical cross-sectional view showing a second connecting beam in the building connection structure according to the embodiment of the present invention, and (B) is a cross-sectional view taken along line BB of (A). (A) is a vertical cross-sectional view showing a first connecting beam in the building connection structure according to the embodiment of the present invention, and (B) is a cross-sectional view taken along line BB of (A). FIG. 3 is a partial cross-sectional view showing a joint structure between a beam and a floor material in the connection structure for a building according to the embodiment of the present invention. It is a top view showing the state at the time of normal of two buildings to which the connection structure of a building concerning an embodiment of the present invention is applied. FIG. 3 is a plan view showing a state in which two buildings to which the building connection structure according to the embodiment of the present invention is applied are displaced in directions away from each other. FIG. 3 is a plan view showing a state in which two buildings to which the building connection structure according to the embodiment of the present invention is applied are displaced in directions toward each other. FIG. 3 is a plan view showing a state in which two buildings to which the building connection structure according to the embodiment of the present invention is applied are displaced in directions displaced from each other. (A) is an elevation view showing an example in which two buildings to which the building connection structure according to the embodiment of the present invention is applied are both seismic isolated structures, and (B) is a seismic isolated structure It is an elevation view showing a state where the buildings are displaced from each other due to an earthquake, and (C) is an elevation view showing an example in which one of the two buildings has a base-isolated structure and the other has a non-isolated structure, D) is an elevation view showing a state in which one building having a seismic isolation structure is displaced by an earthquake.

(Building)
As shown in FIG. 1A, the building connection structure according to the present embodiment is applied to a building 10 in which ridges 12 and 22 are arranged to face each other with a space therebetween. On the outer periphery of the ridge 12, a large beam 14 extending in parallel to the facing surfaces of the ridge 12 and the ridge 22 is provided, and a slab 18 is placed on the upper part of the large beam 14 via a spacer 16. Similarly, on the outer periphery of the ridge 22, a large beam 24 parallel to the facing surfaces of the ridge 12 and the ridge 22 is extended, and a slab 28 is placed on the upper part of the large beam 24 via a spacer 26. There is.

The spacer 16 includes an upper plate 16A, a lower plate 16B, and a cylindrical fixed shaft 16C connecting the upper plate 16A and the lower plate 16B. Similarly, the spacer 26 includes an upper plate 26A, a lower plate 26B, and a cylindrical fixed shaft 26C connecting the upper plate 26A and the lower plate 26B.

(Connecting beam)
As shown in FIG. 4, a plurality of first connecting beams 30 and a plurality of second connecting beams 32 are bridged over the large beam 14 of the ridge 12 and the large beam 24 of the ridge 22, respectively. It should be noted that in FIG. 4, the girders 14 and 24 are appropriately omitted in order to facilitate understanding of other configurations.

As shown in FIGS. 2(A) and 2(B), the first connecting beam 30 joins the channel members 30A and 30B arranged at intervals so that the webs face each other and the ends of the channel members 30A and 30B. It is configured to include two end plates 30C that are formed and a movable shaft 30D that is joined to the channel members 30A and 30B at a portion inside the end plate 30C in the material axis direction. The channel members 30A and 30B may be angle members or steel pipes. In addition, the end plate 30C is not always necessary, and another member (for example, a bolt and a nut, various shaped steels or folded plates) can be appropriately used as long as the shape in which the movable shaft 30D is fixed between the channel members 30A and 30B can be maintained. Etc., the channel members 30A and 30B can be fixed or omitted.

As shown in FIG. 2A, the movable shaft 30D is a columnar member protruding in the vertical direction of the first connecting beam 30, and one movable shaft 30D is welded to the bracket 14B whose lower end portion projects from the girder 14. The upper end of the movable shaft 30D is engaged with the rail 18A embedded in the lower surface of the slab 18. The rails 14A and the rails 18A are channel materials whose planar positions are substantially the same, and are arranged along the extending direction of the girder 14.

Similarly, the other movable shaft 30D has a lower end engaged with a rail 24A welded to a bracket carried out from the girder 24, and an upper end engaged with a rail 28A embedded in the lower surface of the slab 28. The rails 24A and the rails 28A are channel materials whose planar positions are substantially the same, and are arranged along the extending direction of the girder 24.

As a result, the movable shaft 30D formed at the end of the first connecting beam 30 is slidable and rotatable parallel to the facing surfaces of the ridges 12 and 22. The rails 18A and 28A are examples of the long groove portion in the present invention, and as shown in FIG. 4, the sliding range of the movable shaft 30D has a size capable of absorbing the expected displacement of the ridges 12 and 22.

As shown in FIG. 4, a plurality of first connecting beams 30 are provided along the longitudinal direction of the receiving beam 40 described later, and the adjacent first connecting beams 30 are inclined with respect to the longitudinal direction of the receiving beam 40. Although arranged so that the angles are different, the embodiment of the present invention is not limited to this. For example, in consideration of interference with a skeleton such as a pillar, the angles of inclination of the adjacent first connecting beams 30 with respect to the longitudinal direction of the receiving beam 40 become equal (the first connecting beams 30 become parallel to each other). You may arrange so.

As shown in FIGS. 1(A) and 1(B), the second connecting beam 32 joins the channel members 32A and 32B arranged at intervals so that the webs face each other and the ends of the channel members 32A and 32B. The two end plates 32C are formed.

As shown in FIG. 1(B), in the second connecting beam 32, the fixed shaft 16C of the spacer 16 mounted on the girder 14 is formed between the web of the channel material 32A and the web of the channel material 32B. It is arranged so as to be sandwiched between the grooves. The fixed shaft 16C and the second connecting beam 32 are not joined to each other. Similarly, the second connecting beam 32 is arranged such that the fixed shaft 26C of the spacer 26 placed on the girder 24 is sandwiched by the long groove portion formed between the web of the channel material 32A and the web of the channel material 32B. ing. The fixed shaft 26C and the second connecting beam 32 are not joined to each other.

Thereby, the second connecting beam 32 can be slid on a straight line passing through the fixed shaft 16C and the fixed shaft 26C. The second connecting beam 32 is rotatable about the fixed shaft 16C and the fixed shaft 26C.

Therefore, for example, when the ridges 12 and 22 are displaced in a direction away from each other, the fixed shaft 16C of the ridge 12 and the fixed shaft 26C of the ridge 22 slide along the second connecting beam 32. Further, when the ridges 12 and 22 are displaced in a direction in which they are displaced from each other, the second connecting beam 32 rotates as the fixed shafts 16C and 26C move.

As shown in FIG. 4, the plurality of second connecting beams 32 are provided along the longitudinal direction of the receiving beam 40 and are arranged in parallel with each other in normal times. That is, the interval between the adjacent spacers 16 is equal to the interval between the adjacent spacers 26, and the plurality of second connecting beams 32 connecting the fixed shaft 16C of the spacer 16 and the fixed shaft 26C of the spacer 26 are respectively formed. The angle with respect to 12 is equal, and the angle with respect to the ridge 22 is arranged equally. Although two second connecting beams 32 are arranged in FIG. 4, three or more second connecting beams 32 may be arranged. Further, the end plate 32C is not always necessary, and if the fixed shaft 16C and the fixed shaft 26C can slide and rotate between the channel members 32A and 32B, other members (for example, bolts and nuts, various shaped steels and folded plates) can be appropriately used. Etc., the channel members 32A, 32B can be fixed or omitted.

(Receiving beam)
As shown in FIG. 4, an H-shaped steel receiving beam 40 is arranged between the ridge 12 and the ridge 22 in parallel with the facing surfaces of the ridge 12 and the ridge 22 in normal times. The receiving beam 40 is an example of a beam member in the present invention, and is arranged in the center of the space between the ridge 12 and the ridge 22.

As shown in FIGS. 1A and 2A, the receiving beam 40 is mounted on the first connecting beam 30 and the second connecting beam 32 via the support legs 42. A rotation shaft 44 projects downward from the lower end of the support leg 42 and penetrates between the channel members 30A and 30B of the first connecting beam 30 and between the channel members 32A and 30B of the second connecting beam 32. ..

Although the receiving beam 40 is placed on both the first connecting beam 30 and the second connecting beam 32 in the present embodiment, the embodiment of the present invention is not limited to this. For example, the receiving beam 40 may be placed on the second connecting beam 32, and the first connecting beam 30 may be suspended from the receiving beam 40 and supported. Alternatively, for example, the receiving beam 40 may be placed on the first connecting beam 30 and the second connecting beam 32 may be suspended from the receiving beam 40 and supported. That is, the receiving beam 40 may be supported by at least one of the first connecting beam 30 and the second connecting beam 32.

As shown in FIG. 2A, the position where the rotary shaft 44 penetrates in the first connecting beam 30 is substantially coincident with the center of the first connecting beam 30 in the material axis direction, and is between the channel members 30A and 30B. The steady rest 30E is joined so that the position of the rotary shaft 44 does not shift. As a result, the first connecting beam 30 is rotatable about the rotation shaft 44.

Similarly, as shown in FIG. 1(A), the position where the rotary shaft 44 penetrates in the second connection beam 32 is substantially coincident with the center of the second connection beam 32 in the material axis direction, and the channel members 32A, 32B. A steady rest 32E is joined between them so that the position of the rotary shaft 44 does not shift. As a result, the second connecting beam 32 is rotatable about the rotation shaft 44. The steady rest 32E of the second connecting beam 32 is not always necessary, and the rotation shaft 44 may be arranged at a position deviated from the center of the second connecting beam 32 in the material axis direction.

(Floor material)
As shown in FIG. 1(A), a floor material 52 is bridged between the ridge 12 and the receiving beam 40, and a floor material 54 is bridged between the ridge 22 and the receiving beam 40.

An end portion 52A of the floor member 52 is placed on a recess 18B formed on the outer peripheral portion of the slab 18 of the ridge 12, and is covered with a floor plate 19 from above. Similarly, the end portion 54A of the floor material 54 is placed on the recess 28B formed in the outer peripheral portion of the slab 28 of the ridge 22, and is covered with the floor plate 29 from above. Floor plates 19 and 29 are fixed to slabs 18 and 28, respectively, and follow the ridges 12 and 22 during an earthquake. Therefore, since the floor plates 19 and 29 do not move with respect to the ridges 12 and 22, floor finishing materials can be appropriately laid on the floor plates 19 and 29.

In addition, the width L1 on which the floor material 52 is placed on the slab 18 in a normal state is formed to be larger than the distance L2 from the center of the fixed shaft 16C to the end plate 32C of the second connecting beam 32. This prevents the floor material 52 from falling off the slab 18 when the ridges 12 and 22 are displaced in a direction away from each other. The same applies to the floor material 54 and the slab 28.

(Floor material fall prevention mechanism)
As shown in FIG. 3, a joint portion 56 that joins the floor material 52 and the floor material 54 is formed at the end portion 52B of the floor material 52 and the end portion 54B of the floor material 54.

The joint portion 56 is formed by engaging the channel steel 56A joined to the end portion 52B of the floor member 52 and the channel steel 56B joined to the end portion 54B of the floor member 54 with each other. As a result, the floor material 52 and the floor material 54 are restricted from moving in the direction away from each other (the direction indicated by the arrow H in FIG. 3).

Further, an engagement groove 56C is formed in a gap between the channel steel 56A and the channel steel 56B, and the engagement groove 56C projects from the upper flange of the receiving beam 40 and extends in the longitudinal direction of the receiving beam 40. The plate member 46 that has been extended is inserted. As a result, the floor material 52 and the floor material 54 are slidable along the longitudinal direction of the receiving beam 40. A joint portion 56 of the floor material 52 and the floor material 54 is held on the upper portion of the receiving beam 40.

(Wall panel)
As shown in FIG. 4, a stud 60 is provided upright at the end of the receiving beam 40. The upper end of the stud 60 is connected by a beam member (not shown) extending in parallel with the receiving beam 40, and the stud 60 is structurally separated from the ridges 12 and 22.

The space between the stud 60 and the ridge 12 is covered by a wall panel 62. One end of the wall panel 62 is fixed to the stud 60 by a hinge 62A, and the other end is not fixed. Therefore, the wall panel 62 is rotatable around the hinge 62A as shown by the broken line in FIG.

The space between the stud 60 and the ridge 22 is covered by a wall panel 64. One end of the wall panel 64 is fixed to the outer wall of the ridge 22 by a hinge 64A, and the other end is not fixed. Therefore, the wall panel 64 is rotatable around the hinge 64A as shown by the broken line in FIG.

Further, a waterproof sheet 66 is provided inside the wall panels 62 and 64 between the stud 60 and the ridge 12, and between the stud 60 and the ridge 22, respectively, and the ridges 12 and 22 are connected from the outside. Rainwater is prevented from entering the inside of the building 10. The waterproof sheet 66 is installed with a slack in normal times, and is unlikely to break when the ridges 12 and 22 are displaced in a direction away from each other or displaced from each other.

Although the wall panel 62 is fixed to the stud 60 and the wall panel 64 is fixed to the outer wall of the ridge 22 in the present embodiment, the embodiment of the present invention is not limited to this. For example, the wall panel 62 may be fixed to the outer wall of the ridge 12, or the wall panel 64 may be fixed to the stud 60. That is, the wall panel that covers the gap between the ridge 12 and the ridge 22 may be divided into two. By doing so, the weight per wall panel is reduced, so that a gap with a large span can be covered with the wall panel.

Further, in the present embodiment, the studs 60 are erected on the end portions of the receiving beams 40, but the embodiment of the present invention is not limited to this. For example, instead of the end portion of the receiving beam 40 or in addition to the end portion of the receiving beam 40, the studs may be installed at a place other than the end portion. In this case, by installing a wall panel for the inner wall between the stud and the inner walls of the ridges 12 and 22, the inner walls of the ridges 12 and 22 can follow the displacement during an earthquake.

(Lower floor material)
As shown in FIG. 1A, a lower floor material 70 is provided below the floor materials 52 and 54. An end portion 70A of the lower floor material 70 is joined to the receiving beam 40, and an end portion 70B is slidably inserted into slits 18C and 28C formed in the slabs 18 and 28. The lower floor material 70 is joined only to the end portion of the receiving beam 40, and as shown in FIG. 4, the end portion 70B has a trapezoidal shape shorter than the end portion 70A. Although the lower floor material 70 is depicted only below the floor material 52 in FIGS. 4 to 7, it is also provided below the floor material 54 as shown in FIG.

(Action/effect)
According to the building connection structure of the present embodiment, as shown by the arrow in FIG. 4, the first connecting beam 30 is rotatable about the rotation shaft 44 (arrow M1). Further, the movable shaft 30D formed at the end of the first connecting beam 30 is slidable along the rails 18A and 28A in parallel with the facing surfaces of the ridges 12 and 22 (arrow N1).

Further, the second connecting beam 32 is rotatable about the rotation shaft 44 (arrow M2). Further, the fixed shafts 16C and 26C are slidable along the second connecting beam 32 (arrow N2).

The directions of the arrows M1 and M2 in FIG. 4 are examples of the rotation directions of the first connection beams 30 and 32, and the first connection beams 30 and 32 can also rotate in opposite directions. Similarly, the directions of the arrows N1 and N2 are an example of the sliding directions of the movable shaft 30D and the fixed shafts 16C and 26C, and they can be slid in arbitrary directions. Since the first connecting beams 30 and 32 are provided with such a rotating mechanism and a sliding mechanism, even when the ridges 12 and 22 are displaced relative to each other in a direction in which they move away from each other, a direction in which they approach, or a direction in which they shift. It can be deformed following displacement.

FIG. 4 shows a normal state in which no seismic force is applied, but when horizontal force due to an earthquake acts on the building 10 and the buildings 12 and 22 are displaced relative to each other, The positional relationship between the ridges 12 and 22 is as shown in FIG.

That is, from the state shown in FIG. 4, the movable shafts 30D at both ends of the first connection beam 30 slide along the rails 18A, and the first connection beam 30 rotates about the rotation shaft 44 of the receiving beam 40. In addition, the fixed shafts 16C and 26C of the ridges 12 and 22 slide along the second connecting beam 32 to be in the state shown in FIG. At this time, since the rotating shaft 44 is arranged at the center of the first connecting beam 30 in the material axis direction, the receiving beam 40 is held at the center of the gap between the ridge 12 and the ridge 22.

As a result, the floor member 52 spanning the receiving beam 40 and the ridge 12 and the floor member 54 spanning the receiving beam 40 and the ridge 22 slide with respect to the ridge 12 and the ridge 22, respectively. And absorbs the displacement of the ridge 22.

Therefore, the building connection structure of the present embodiment is to reduce the size of the floor material as compared with the conventional expansion joint in which the receiving beam 40 is not provided and the relative displacement between the two buildings is absorbed by one floor material. You can

Next, from the state shown in FIG. 4, when the horizontal force due to the earthquake acts on the building 10 and the buildings 12, 22 are relatively displaced in the directions toward each other, the positional relationship between the buildings 12, 22 is as shown in FIG. become.

That is, from the state shown in FIG. 4, the movable shafts 30D at both ends of the first connecting beam 30 slide along the rails 18A and 28A, and the first connecting beam 30 rotates about the rotation shaft 44 of the receiving beam 40. In addition, the fixed shafts 16C and 26C of the ridges 12 and 22 slide along the second connecting beam 32 to be in the state shown in FIG. At this time, since the rotating shaft 44 is arranged at the center of the first connecting beam 30 in the material axis direction, the receiving beam 40 is held at the center of the gap between the ridges 12 and 22.

As a result, the floor member 52 spanning the receiving beam 40 and the ridge 12 and the floor member 54 spanning the receiving beam 40 and the ridge 22 slide with respect to the ridge 12 and the ridge 22, respectively. And absorbs the displacement of the ridge 22.

As shown in FIG. 8A, in this embodiment, the ridge 12 and the ridge 22 have a seismic isolation structure in which they are supported by seismic isolation bearings. Therefore, as compared with the case where only one of the buildings has the seismic isolation structure as shown in FIG. 8C, or the case where neither of the buildings has the seismic isolation structure, the buildings 12 and 12 at the time of the earthquake The relative displacement with 22 is large.

That is, the displacement amount when the ridge 12 and the ridge 22 shown in FIG. 8B are displaced toward each other, the displacement amount of the seismic isolation structure and the non-seismic isolation structure shown in FIG. It is larger than the amount of displacement when it is displaced in the approaching direction.

In the structure for connecting buildings according to the present embodiment, the receiving beams 40 (see FIG. 4 and the like) are provided to reduce the amount of displacement absorbed by each floor material that connects the ridge 12 and the ridge 22. Therefore, the size of the floor material can be reduced as compared with the conventional expansion joint in which the receiving beam 40 is not provided and the relative displacement between the two buildings is absorbed by one floor material.

Although the ridges 12 and 22 of the building 10 to which the seismic isolation structure of the building of the present embodiment is applied are both seismic isolation structures, either one may be a non-seismic isolation structure, or both may be non-seismic isolation structures. It may have a seismic isolation structure. Further, the seismic isolation structure of the building of the present embodiment may be applied to the lower floor portion of the building 10 or to the upper floor portion thereof. Alternatively, it may be applied to each floor from the lower floor to the upper floor.

Next, from the state shown in FIG. 4, when a horizontal force due to an earthquake acts on the building 10 and the buildings 12, 22 are displaced relative to each other in the directions (longitudinal direction of the receiving beam 40), the buildings 12, 22 The positional relationship is as shown in FIG.

That is, from the state shown in FIG. 4, the movable shafts 30D at both ends of the first connecting beam 30 slide along the rails 18A and 28A, and the second connecting beam 32 rotates about the rotation shaft 44 of the receiving beam 40. Then, the fixed shafts 16C and 26C of the ridges 12 and 22 slide along the second connecting beam 32 to be in the state shown in FIG. At this time, since the rotating shaft 44 is arranged at the center of the first connecting beam 30 in the material axis direction, the receiving beam 40 is held in the center of the space between the ridges 12 and 22.

Further, since the receiving beam 40 is held in the central portion of the space between the ridge 12 and the ridge 22, the distance along the second connecting beam 32 from the rotation shaft 44 of the receiving beam 40 to the fixed shaft 16C of the ridge 12, The distance along the second connecting beam 32 from the rotary shaft 44 to the fixed shaft 26C of the ridge 22 is kept equal. Therefore, the distance along the longitudinal direction of the receiving beam 40 from the rotating shaft 44 to the fixed shaft 16C and the distance along the longitudinal direction of the receiving beam 40 from the rotating shaft 44 to the fixed shaft 26C are held equal. Therefore, the amount of displacement of the relative position between the ridge 12 and the receiving beam 40 and the amount of displacement of the relative position between the ridge 22 and the receiving beam 40 are held equal.

As a result, the floor member 52 spanning the receiving beam 40 and the ridge 12, and the floor member 54 spanning the receiving beam 40 and the ridge 22, respectively, on the receiving beam 40 in the longitudinal direction of the receiving beam 40. Slide to absorb the displacement of the ridges 12 and 22. The displacement amount (displacement amount in the direction in which the ridge 12 and the ridge 22 are displaced from each other) δ3 at this time is half of the relative displacement amount (δ3+δ3) between the ridge 12 and the ridge 22.

Therefore, the connection structure of the building of the present embodiment absorbs a large displacement as compared with the conventional expansion joint in which the receiving beam 40 is not provided and the relative displacement between the two buildings needs to be absorbed by one floor material. be able to.

In the present embodiment, the rotation shaft 44 of the receiving beam 40 is arranged at the center of the first connecting beam 30 in the material axis direction, and the receiving beam 40 is held at the center of the gap between the ridge 12 and the ridge 22. However, the embodiment of the present invention is not limited to this. For example, the rotation shaft 44 of the receiving beam 40 may be arranged at a position other than the center of the first connecting beam 30 in the material axis direction. In this case, the position where the receiving beam 40 is held is determined according to the ratio of the distance from the one movable shaft 30D to the rotating shaft 44 and the distance from the other movable shaft 30D to the rotating shaft 44. By arranging the rotating shaft 44 in this way, when the adjacent two buildings have different displacements, these displacements can be efficiently absorbed.

A lower floor material 70 is joined to the end of the receiving beam 40. Therefore, even if the floor material 52 slides in the direction away from the end of the beam girder 40 along the longitudinal direction of the beam girder 40, for example, by displacing the ridge 12 and the ridge 22 from each other, the floor The lower floor material 70 can be positioned below the gap generated at the end of the material 52 in the width direction (longitudinal direction of the receiving beam 40). Similarly, for example, even when the floor material 54 slides along the longitudinal direction of the receiving beam 40 in the direction away from the end portion of the receiving beam 40, the floor material 54 falls below the gap generated at the widthwise end portion of the receiving beam 40. The flooring 70 can be located.

Furthermore, since the end portion 70B of the lower floor material 70 is formed shorter than the end portion 70A joined to the receiving beam 40, the end portion 70B of the lower floor member 70 and the pillar extending through the upper and lower floors arranged at the end portions of the ridges 12 and 22. Interference can be avoided.

In addition, in this embodiment, the lower floor material 70 is joined to the end portion of the receiving beam 40, but the embodiment of the present invention is not limited to this. For example, instead of the lower floor material 70, handrails or the like may be provided at the ends of the floor materials 52 and 54.

12, 22 Building 16C, 26C Fixed shaft 18, 28 Slab 18A, 28A Rail (long groove part)
30 first connecting beam 30D movable shaft 32 second connecting beam 40 receiving beam (beam member)
46 plate materials 52, 54 floor material 56 joint portion 56C engaging groove 60 stud 62 wall panel (first wall panel)
64 wall panel (2nd wall panel)

Claims (4)

Two buildings facing each other with a space in between,
A plurality of connecting means bridged between the ridges and slidably and rotatably connected to the ridges;
A beam member disposed between the ridges, supported by the plurality of connecting means and rotatably connected to the plurality of connecting means,
The bridge is bridged between the one ridge and the beam, and the other ridge and the beam, and one end is slidably supported in the longitudinal direction of the beam and the other end is A pair of floor materials slidably supported on the ridge,
Have a,
The connecting means includes a plurality of connecting beams in which long groove portions formed in a longitudinal direction with respect to a fixed shaft fixed to the slab of the ridge are connected so as to be slidable and rotatable.
Building connection structure. It said connecting means further comprises a plurality of connecting beams movable shaft provided at both ends in the long groove disposed parallel to the facing surface of the slab extending in the slab is slidably coupled to and rotated The building connection structure according to claim 1. A stud is erected at the end of the beam member, a first wall panel covering between the one ridge and the stud is attached to the stud in a normal state, and the other ridge is attached to the other ridge in a normal state in the other ridge. The connection structure for a building according to claim 1 or 2, wherein a second wall panel that covers between the ridge and the stud is attached. A joint portion that slidably connects one end of the floor material and the other end of the floor material in the longitudinal direction of the beam material,
A plate member extended along the longitudinal direction of the beam member,
An engagement groove formed in the joint portion and engaged with the plate member,
The connection structure for a building according to any one of claims 1 to 3, further comprising a floor material fall prevention mechanism including:

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