WO2014155711A1

WO2014155711A1 - Building structure

Info

Publication number: WO2014155711A1
Application number: PCT/JP2013/059649
Authority: WO
Inventors: 齋藤　啓一; 岩崎　隆; 義徳山本; 峰雄馬場
Original assignee: 大和ハウス工業株式会社
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2014-10-02

Abstract

Provided is a building structure which allows for precise building design by way of clearly defining the roles of posts and load-bearing wall panels. The building structure comprises a load-bearing wall panel frame (1) provided with a brace (13), a wall panel frame (2), a continuous footing (3), a post (4), and a beam (5). A force is generated in the brace (13) and a vertical frame (11) of the load-bearing wall panel frame (1) by a horizontal load being transferred to the load-bearing wall panel frame (1), the force generated in the brace (13) is transferred as a tensile force to the continuous footing (3) or the beam (5), the force generated in the vertical frame (11) is transferred as a compressive force to the continuous footing (3) or the beam (5), and a vertical load is transferred to the post (4) from the beam (5). The vertical frame (11) is not anchored to the post (4), and a gap (C) is formed between the vertical frame (11) and the post (4).

Description

Building structure

This invention relates to the structure of a building in which a load-bearing wall panel is used.

Patent Document 1 discloses a structure of a building in which a load-bearing wall frame having braces is used. And two opposing vertical frames in two adjacent load-bearing wall frames are fixed by bolts and nuts. The two vertical frames fixed to each other also serve as pillars.

JP 2008-231764 A

Since the structure described in Patent Document 1 is not a structure composed of pillars and load-bearing wall panels that are configured independently, it is difficult to perform accurate building design. Specifically, it is necessary to design an external force that combines a vertical load such as fixed / loading load and a horizontal load such as wind pressure / seismic force, which is complicated. In addition, it is difficult to perform an accurate building design even when an excessive load is transmitted between the pillar and the load-bearing wall panel in a structure including the pillar and the load-bearing wall panel that are configured independently.

This invention makes it a subject to provide the structure of the building which can perform an exact building design in view of said situation.

In order to solve the above problems, the building structure of the present invention includes a load-bearing wall panel frame provided with braces, a foundation, a column, and a beam, and a horizontal load is transmitted to the load-bearing wall panel frame. Thus, a force is generated in the vertical frame of the brace and the load-bearing wall panel frame, the force generated in the brace is transmitted as a tensile force to the foundation or the beam, and the force generated in the vertical frame is the foundation or The beam is transmitted as a compressive force to the beam, and a vertical load is transmitted from the beam to the column.

With the above configuration, the division of roles between the column and the load-bearing wall panel with respect to the vertical load and horizontal load becomes clear, and an accurate building design can be performed.

The vertical frame may not be fixed to the pillar. According to this, since the transmission of the mutual force between the column and the vertical frame is surely cut off, the division of roles between the column and the load-bearing wall panel becomes clearer.

A gap may be formed between the vertical frame and the pillar. According to this, transmission of force due to contact between the vertical frame and the pillar is prevented, so that the division of roles between the pillar and the load-bearing wall panel becomes clearer.

The wall panel frame without braces is provided, and the vertical frame of the wall panel frame may not be fixed to the pillar. Moreover, the wall panel frame which does not have a brace is provided, and the clearance gap may be formed between the vertical frame of the said wall panel frame, and the said pillar. According to this, the said wall panel frame can be comprised by the same dimension as the said load-bearing wall panel frame. Therefore, it becomes possible to assemble the building in the same manner as the load-bearing wall panel frame, thereby facilitating construction work.

The present invention has the effect of clarifying the division of roles between the pillar and the load-bearing wall panel, and enabling accurate building design.

It is explanatory drawing which showed the structure of the building concerning embodiment of this invention which showed the fabric foundation, the load-bearing wall panel frame provided with the brace, the wall panel frame without the brace, the column, and the beam . It is the perspective view which expanded and showed the fundamental part of the structure of the building concerning embodiment of this invention. It is explanatory drawing which expanded and showed the beam part of the structure of the building concerning embodiment of this invention. It is explanatory drawing which showed transmission of the vertical load in the structure of the building concerning embodiment of this invention. It is explanatory drawing which showed transmission of the horizontal load in the structure of the building concerning embodiment of this invention. It is explanatory drawing of the horizontal cross section of the structure of the building concerning embodiment of this invention. It is explanatory drawing of the horizontal cross section of the structure of the building concerning embodiment of this invention. It is explanatory drawing of the horizontal cross section of the structure of the building concerning embodiment of this invention.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, the building structure of this embodiment has a steel structure including a load-bearing wall panel frame 1, a wall panel frame 2, a fabric foundation 3, a pillar 4, and a beam 5. ing. Moreover, in the building structure of this embodiment, the load-bearing wall panel frame 1 is disposed on one side of the pillar 4 and the component part in which the load-bearing wall panel frame 1 is disposed on both sides of the pillar 4. On the other side, there is a component where the wall panel frame 2 is arranged.

The upper end portion of the anchor bolt 31 protrudes from the upper surface of the fabric foundation 3, and the lower end portion of the column 4 is fixed to the fabric foundation 3 by a nut 32 screwed to the upper end portion. An opening is formed in the side surface of the lower end of the column 4, and the operation on the nut 32 can be performed from this opening. The main body of the column 4 is made of a square steel pipe, a lip groove steel, or the like. When the main body portion of the column 4 is a square steel pipe, the opening can be formed in the lower end portion by forming a notch in the side surface of the square steel pipe.

The load-bearing wall panel frame 1 includes a vertical frame 11 arranged on the left and right, a horizontal frame 12 and a brace 13 arranged on the upper and lower sides. The brace 13 is provided in a cross shape, for example. The ends of the brace 13 are fixed directly to the corners where the vertical frame 11 and the horizontal frame 12 are joined by bolts or welding, or bolts or welds to the plates fixed to the corners. Fixed by etc. The load-bearing wall panel frame 1 is provided with a horizontal beam 14 and a vertical beam 15.

The wall panel frame 2 includes a vertical frame 21, a horizontal frame 22, a horizontal beam 23, and a vertical beam 24, but does not include braces.

In the load-bearing wall panel frame 1 and the wall panel frame 2, both ends of the lower surface and both ends of the upper surface are formed with bolt insertion holes through which bolts are inserted.

An upper end portion of the anchor bolt 31 is inserted into the bolt insertion hole on the lower surface of the load bearing wall panel frame 1 arranged on the first floor side, and the load bearing wall panel frame 1 is attached by a nut 32 screwed into the upper end portion. It is fixed to the cloth foundation 3. Even when the wall panel frame 2 is arranged on the first floor side, the upper end portion of the anchor bolt 31 is inserted into the bolt insertion hole formed on the lower surface of the wall panel frame 2, and the upper end portion is screwed. The wall panel frame 2 is fixed to the fabric foundation 3 by the combined nut 32.

A base liner 6 may be provided on the upper surface of the fabric base 3, and the lower surface of the pillar 4 and the lower surface of the load-bearing wall panel frame 1 may be in contact with the base liner 6. Alternatively, the base liner 6 may not be provided, and the lower surface of the pillar 4 and the lower surface of the load-bearing wall panel frame 1 may be in direct contact with the upper surface of the fabric foundation 3.

3, the beam 5 is made of, for example, H-shaped steel, and the load-bearing wall panel frame 1, the wall panel frame 2, and the column 4 are fixed to the flange.

The upper end of the pillar 4 on the first floor is fixed to the flange of the beam 5 with bolts 33 and nuts 34.

A bolt 33 is inserted into a bolt insertion hole formed on the upper surface of the load-bearing wall panel frame 1 on the first floor, and the load-bearing wall panel frame 1 is attached to the beam 5 by a nut 34 screwed into the bolt 33. It is fixed to the flange.

Similarly, a bolt is inserted into a bolt insertion hole formed on the lower surface of the load-bearing wall panel frame 1 on the second floor side, and the load-bearing wall panel frame 1 is connected to the second-floor beam (body difference beam) by a nut screwed into the bolt. ) It is fixed to 5 flange. Further, a bolt is inserted into a bolt insertion hole formed on the upper surface of the load-bearing wall panel frame 1 on the second floor side, and the load-bearing wall panel frame 1 is connected to the upper-floor beam (eave beam) by a nut screwed into the bolt. ) It is fixed to 5 flange.

Similarly, a bolt is inserted into a bolt insertion hole formed in the lower surface of the wall panel frame 2 on the second floor side, and the wall panel frame 2 is connected to the second floor beam (trunk beam) 5 by a nut screwed into the bolt. It is fixed to the flange. Further, a bolt is inserted into a bolt insertion hole formed on the upper surface of the wall panel frame 2 on the second floor side, and the wall panel frame 2 is connected to the upper floor beam (eave beam) 5 by a nut screwed into the bolt. It is fixed to the flange.

A gap C is formed between the vertical frame 11 of the load-bearing wall panel frame 1 and the pillar 4. The gap C is preferably set in a range of 3 mm to 25 mm, for example. Further, it is desirable that the vertical frame 11 and the pillar 4 of the load-bearing wall panel frame 1 are not fixed to each other.

Here, as shown in FIG. 4, the vertical load applied to the building (see the white arrow in the figure) is transmitted to the pillar 4 through the beam 5 (see the solid arrow).

Further, as shown in FIG. 5, the horizontal load applied to the building (see the white arrow in the figure) is transmitted to the load-bearing wall panel frame 1 through the beam 5. A force is generated in the brace 13 and the vertical frame 11 of the load-bearing wall panel frame 1 by the load in the in-plane direction of the load-bearing wall panel frame 1 among the horizontal loads (see dotted arrows). Then, the force generated in the brace 13 is transmitted as a tensile force to the joint portion (a place where the end of the brace 13 is fixed to the load-bearing wall panel frame 1 by welding or the like). Is transmitted to the beam 5 through the bolt 33, and is transmitted to the fabric foundation 3 through the anchor bolt 31 in the case of the first floor load-bearing wall panel (see dotted arrows). In addition, the force generated in the vertical frame 11 is transmitted as a compressive force to the beam 5 in the case of the second floor load-bearing wall panel and to the fabric foundation 3 via the anchor bolt 31 in the case of the first floor load-bearing wall panel. The That is, the compressive force and tensile force by the load-bearing wall panel frame 1 on the first floor are not transmitted to the pillars 4 on the first floor, but through the contact portion between the load-bearing wall panel frame 1 and the fabric foundation 3 and the anchor bolts 31. It is transmitted to the fabric foundation 3. In addition, the transmission of the vertical force from the load-bearing wall panel frame 1 on the second floor to the cloth foundation 3 is performed via the second-floor beam (trunk beam) 5 and the pillar 4 on the first floor.

Thus, since stress transmission does not occur between the pillar 4 and the load-bearing wall panel frame 1, the vertical frame 11 of the load-bearing wall panel frame 1 may be designed to transmit the vertical force due to the horizontal load. It will be. The column 4 may be designed in consideration of the vertical force applied to the column 4.

Also, out-of-plane bending force is generated in the load-bearing wall panel frame 1 due to out-of-plane loads (wind pressure, etc.) of the horizontal load. Regarding the horizontal load in the out-of-plane direction, the load-bearing wall panel frame 1 and the wall panel frame 2 transmit the load to the upper and lower floor beams 5 or the fabric foundation 3. Then, the beam 5 is transmitted as a horizontal load in the in-plane direction from the beam 5 to the load-bearing wall panel frame 1 and the other load-bearing wall panel frame 1 that intersects the wall panel frame 2, and the load is transmitted by the transmission path described above. It is transmitted to the foundation 3 etc. As described above, the load-bearing wall panel frame 1 and the wall panel frame 2 do not transmit the bending force in the out-of-plane direction to the column 4, so that the structural design of the column 4 is facilitated.

Thus, a force is generated in the brace 13 and the vertical frame 11 of the load-bearing wall panel frame 1 by the load in the in-plane direction of the load-bearing wall panel frame 1 among the horizontal loads. Then, the force generated in the brace 13 is transmitted as a tensile force to the joint portion (a place where the end of the brace 13 is fixed to the load-bearing wall panel frame 1 by welding or the like). Is transmitted to the beam 5 through the bolt 33, and is transmitted to the fabric foundation 3 through the anchor bolt 31 in the case of the first floor bearing wall panel. In addition, the force generated in the vertical frame 11 is transmitted as a compressive force to the beam 5 in the case of the second floor load-bearing wall panel and to the fabric foundation 3 via the anchor bolt 31 in the case of the first floor load-bearing wall panel. The Therefore, the division of roles between the pillar 4 and the load-bearing wall panel frame 1 is clarified. For example, the axial force of the pillar 4, the horizontal rigidity of the load-bearing wall panel frame 1, the pull-out force of the anchor bolt 31, etc. You will be able to do exactly.

Further, if the vertical frame 11 is not fixed to the pillar 4, the division of roles between the pillar 4 and the load-bearing wall panel frame 1 is further clarified. However, the structure in which the vertical frame 11 and the column 4 are fixed by, for example, bolts and nuts, is somewhat sacrificed in clarifying the division of roles between the column 4 and the load-bearing wall panel frame 1, but the column 4 And the load-bearing wall panel frame 1 are integrated, there is an advantage that the rigidity in the in-plane and out-of-plane directions of the wall of the building can be increased.

If a gap C is formed between the vertical frame 11 and the column 4, force transmission due to contact between the vertical frame 11 and the column 4 is reliably prevented, and the column 4 and the load-bearing wall panel frame. The division of roles in 1 will become clearer. However, in order to facilitate the alignment of the adjacent load-bearing wall panel frames 1 and to form the gaps C, the vertical frame 11 and the pillars 4 may be slightly fixed with the pillars 4 and the load-bearing wall panel frames. Since the influence on the clarification of the division of roles of 1 is insignificant, such fixation is allowed. Even when the steel frame processing accuracy and the construction accuracy are not high, if the gap C is formed, it becomes easy to install the load-bearing wall panel frame 1 between the adjacent columns 4. Furthermore, in consideration of the fit in the protruding corner portion and the entering corner portion, by setting the gap C between the column 4 and the panel frames 1 and 2, it is possible to design such that the types of panels are not increased. It becomes.

FIG. 6 shows a horizontal cross section in the structure of the building of this embodiment. In this example, the load-bearing wall panel frame 1 is used as an outer wall base. The column 4 is made of a square steel pipe, and the vertical frame 11 of the load-bearing wall panel frame 1 is also made of a square steel pipe. A cement board 51 is fixed to the vertical frame 11 with screws 52 as an exterior material. A cement board 53 is bonded between the cement board 51 and the pillar 4 as a base material for fixing a face material by, for example, a double-sided tape. The vertical frame 11 is fixed to the L angle 54 by a screw 55. A gap C of 6 mm is set by the L angle 54. The L angle 54 is provided at one or a plurality of locations on the center side in the longitudinal direction of the column 4 by welding or the like. The fixing of the vertical frame 11 and the pillar 4 via the L angle 54 is the above-described light fixing. A light iron frame 56 constituting an interior panel is disposed on the interior side, and a gypsum board 57 is fixed to the light iron frame 56 by screws 58. A rock wool 59 is provided as a refractory material between the gypsum board 57 and the pillar 4. In addition, the structure similar to the structure shown in the said FIG. 6 is applied also in the location in which the said wall panel frame 2 is provided.

FIG. 7 shows a horizontal section in the building structure of this embodiment. Also in this example, the load-bearing wall panel frame 1 is used as an outer wall base. The column 4 is made of a square steel pipe, and the vertical frame 11 of the load-bearing wall panel frame 1 is made of channel steel. A cement board 61 is fixed to the vertical frame 11 with screws 62 as an exterior material. A cement board 63 is bonded between the cement board 61 and the pillar 4 as a base material for fixing the face material by, for example, a double-sided tape. The vertical frame 11 is fixed to an L angle 64 by a screw 65. A gap C of 11 mm is set by the L angle 64. When the welding area of the joining plate provided at the lower end of the column 4 is large, such a wide gap C is set. The L angle 64 is provided at one or a plurality of locations on the longitudinal center side of the column 4 by welding or the like. The fixing of the vertical frame 11 and the pillar 4 via the L angle 64 is the above-described light fixing. A light iron frame 66 constituting an interior panel is arranged on the interior side, and a gypsum board 67 is fixed to the light iron frame 66 by screws 68. A cement board 69 is bonded between the gypsum board 67 and the pillar 4 as a refractory material by, for example, a double-sided tape. In addition, the structure similar to the structure shown in the said FIG. 7 is applied also in the location in which the said wall panel frame 2 is provided.

FIG. 8 shows a horizontal cross section in the structural example of the building of this embodiment. In this example, the load-bearing wall panel frame 1 is used as an outer wall and an interior base. The column 4 is made of a square steel pipe, and the vertical frame 11 of the load-bearing wall panel frame 1 is made of channel steel. A cement board 71 is fixed to the vertical frame 11 with screws 72 as an exterior material. A metal object 73 is fixed between the cement board 71 and the pillar 4 as a base material for fixing the face material, for example, by welding. A gypsum board 74 and an extruded polystyrene foam (XPS) 75 are fixed to the vertical frame 11 with screws 76. A cement board 77 is bonded between the gypsum board 74 and the pillar 4 as a refractory material by, for example, a double-sided tape. A gap C of 20 mm is set between the vertical frame 11 and the pillar 4. In addition, the structure similar to the structure shown in the said FIG. 8 is applied also in the location in which the said wall panel frame 2 is provided.

When a wide gap C (for example, 20 mm) is set as described above, it is possible to design such that the types of panels are not increased when producing the exit corner and the entrance corner. That is, in the case where the exit corner and the entrance corner are formed, the load-bearing wall panel frame 1 and the wall panel frame 2 are arranged so as to intersect each other with the pillar 4 interposed therebetween, but when the wide gap C is set as described above. The corner contact due to the above-described crossing arrangement of the wall panel frames does not occur. In other words, if a wide gap C is set only at the exit corner and the entrance corner, the number of types of panels increases. However, by setting a wide gap C on the wall surface other than the exit corner and the entrance corner, The number of types can not be increased.

It should be noted that the hardware 73 can be omitted as the base material for fixing the face material, and in that case, a load in the out-of-plane direction (wind pressure or the like) can be strictly borne by the load bearing wall panel.

If the vertical frame 21 of the wall panel frame 2 is not fixed to the pillar 4 and the gap C is formed between the vertical frame 21 of the wall panel frame 2 and the pillar 4, the wall panel The frame 2 can be configured with the same dimensions as the load-bearing wall panel frame 1. Therefore, it becomes possible to assemble | attach to a building with the structure similar to the said load-bearing wall panel frame 1, and a building operation becomes easy.

As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

DESCRIPTION OF SYMBOLS 1 Bearing wall panel frame 11 Vertical frame 12 Horizontal frame 13 Brace 2 Wall panel frame 21 Vertical frame 22 Horizontal frame 3 Cloth foundation 31 Anchor bolt 32 Nut 33 Bolt 34 Nut 4 Pillar 5 Beam

Claims

A load-bearing wall panel frame provided with braces, a foundation, a column, and a beam are provided, and when a horizontal load is transmitted to the load-bearing wall panel frame, a force is applied to the brace and the vertical frame of the load-bearing wall panel frame. The generated force generated in the brace is transmitted as a tensile force to the foundation or the beam, the force generated in the vertical frame is transmitted as a compressive force to the foundation or the beam, and the column is perpendicular to the beam from the beam. A building structure characterized by the transmission of loads.
2. The building structure according to claim 1, wherein the vertical frame is not fixed to the pillar.
3. The building structure according to claim 1, wherein a gap is formed between the vertical frame and the pillar.
3. The building structure according to claim 2, further comprising a wall panel frame without braces, wherein the vertical frame of the wall panel frame is not fixed to the pillar.
The building structure according to claim 3, further comprising a wall panel frame having no braces, wherein a gap is formed between the vertical frame of the wall panel frame and the pillar. .