JP6181035B2 - Bearing wall - Google Patents

Description

  The present invention relates to a bearing wall used as an outer wall of a building in a house or other various buildings.

  Conventionally, as a load-bearing wall used in an industrialized house, an outer peripheral frame assembled by a pair of vertical frame members and upper and lower horizontal frame members, and the outer peripheral frame are arranged side by side across the pair of horizontal frame members. A thing with a plurality of horizontal frame materials used as a middle rail has been developed. In such a bearing wall, the vertical frame member that receives a vertical load and the horizontal frame member that receives a horizontal load are generally joined by a rigid joint by welding or a semi-rigid joint with a high degree of fixation. is there.

JP2013-117156A JP 2014-47469 A JP 2014-145174 A Japanese Patent No. 4500701

  In the case of the above-mentioned conventional example, since rigid joining is adopted for joining the vertical frame material and the horizontal frame material, the rigidity of the entire load-bearing wall is increased and the proof stress is also increased. Due to the bending moment, there is a problem that the axial force that can be borne is reduced. For this reason, it is unsuitable for buildings with three or more stories that require a high axial load.

  An object of the present invention is to provide a bearing wall capable of minimizing the influence of a bending moment transmitted from a horizontal frame member to a vertical frame member and causing the vertical frame member to bear a high axial force.

The bearing wall according to the present invention is an outer peripheral frame formed by a pair of vertical frame members and upper and lower horizontal frame members, and an intermediate rail arranged side by side across the pair of vertical frame members of the outer peripheral frame. It is provided with a plurality of horizontal frame members and a load bearing element whose upper and lower ends are coupled to the horizontal frame members adjacent to each other in the vertical direction, and is partitioned into a plurality of partition layers arranged vertically with the horizontal frame material serving as the middle rail as a boundary. In the load bearing wall in which the load bearing element is provided in each partition layer ,
Wherein a joint pin joints between the longitudinal frame members each lateral frame members,
Is said load bearing element provided in a part of the partition layer is a surface material covering the partition layer, a said load-bearing element blur over scan provided in the partition layer portion of the other, the blur over scan is provided the partition layer is, deformation absorbing means is provided for absorbing the deformation of the partition layer, the partition layer blur over scan is provided, by the deformation absorbing means is present, the surface material is provided The rigidity is the same as that of the partition layer .
In this specification, “pin joint” refers to a joint that can be regarded as a pin joint among nodes classified into rigid joints and pin joints in terms of structural mechanics.

  According to the load-bearing wall of this structure, since the load-bearing elements are coupled across the horizontal frame members adjacent to each other in the vertical direction, the load-bearing elements increase the rigidity in the horizontal direction and function as load-bearing walls. In this case, since the joint between the horizontal frame member and the vertical frame member is a pin joint, the bending transmitted from the horizontal frame member to the vertical frame member is compared with the case where the joint is a rigid joint by welding, for example. The influence of the moment can be minimized. Therefore, a high axial force can be borne on the vertical frame member.

In the present invention, the joint portion of the pin joint between each horizontal frame member and the vertical frame member has a deformation region that absorbs a bending moment acting between the horizontal frame member and the vertical frame member. May be.
In the case of this configuration, the joint portion becomes pin joint by absorbing a bending moment acting between the horizontal frame material and the vertical frame material in the deformation region. For this reason, even if the form of joining is welding or it is the structure using a some volt | bolt, it will become pin joining.

  In the present invention, the joint portion of the pin joint between the horizontal frame member and the vertical frame member is a center piece in the bearing wall width direction of the vertical frame member. A joining structure may be employed in which the lateral pieces of the joint metal are joined to the side facing surface, the lateral pieces of the joint hardware are opened from the corners by a length that is a deformation region allowing deformation, and the remaining part is joined to the lateral frame member.

  According to this configuration, a deformable joint metal having an L-shaped cross section is used, and a horizontal piece of the metal joint is opened from a corner by a length that becomes a deformation region, and the remaining part is joined to the horizontal frame member. Therefore, the bending rigidity at the joint is small, and the damage of the deformation region is small even with large deformation. Therefore, for example, even after experiencing a large deformation of 1/15 rad, where it is desirable to allow deformation in a building such as a house, it can be configured to return to its original shape with minor repairs.

  In the present invention, the pin joining between the horizontal frame member and the vertical frame member is performed by placing a deformable joint metal having an open cross-sectional shape having a groove shape or a lip groove shape with the opening side facing the vertical frame member side. A joining structure may be employed in which the vertical frame member is joined to a surface facing the center side in the bearing wall width direction by welding, and the end of the horizontal frame member is joined to the rear surface of the deformation-allowable joint metal by welding. In the case of this configuration, because of the deformation-permissible performance of the groove-shaped or lip-groove-shaped deformation-permissible joint hardware, it is possible to achieve pin joining with a simple structure that is surely joined.

In the present invention, the joint portion of the pin joint between the horizontal frame member and the vertical frame member is welded by overlapping a deformable joint metal fitting made of a flat plate on a side surface where the horizontal frame member of the vertical frame member is joined, The end face of the horizontal frame material is welded to the deformation-allowable joint metal, the deformation-allowable joint metal projects over the outer periphery of the horizontal frame material, and the position where the welding is applied to the vertical frame material of the deformation-allowable joint metal A joint structure in which only both ends in the direction or only both upper and lower ends may be employed.
In the case of this configuration, a deformation-allowable joint metal made of a flat plate is interposed between the vertical frame member and the end surface of the horizontal frame member, the deformation-permissible joint metal projects over the outer periphery of the horizontal frame member, and the entire periphery is welded. Without welding, only the both ends in the width direction or only the upper and lower ends are welded to the vertical frame material. Therefore, when a bending moment acts between the vertical frame material and the horizontal frame material, the deformation-allowable joint metal is deformed, and the bending moment To absorb. Thereby, it can be set as pin joining, joining by welding.

In the present invention, the joint portion of the pin joint between the horizontal frame member and the vertical frame member is directly or jointed to the vertical frame member at a portion excluding upper and lower ends in the height direction of the cross section of the horizontal frame member. The joint structure is welded via a plate, and has a gap between the upper and lower ends of the end face of the horizontal frame member and the vertical frame member that allows the vertical frame member to tilt in the vertical direction with respect to the vertical frame member. May be.
In the case of this configuration, a gap is provided between the upper and lower ends of the end surface of the horizontal frame member and the vertical frame member, and the portions other than the upper and lower ends of the horizontal frame member are welded to the vertical frame member. As a result, the pinned structure is reduced.
For example, when the horizontal frame member is directly attached to the vertical frame member, the gap between the upper and lower ends of the horizontal frame member can be formed by providing cut portions that are obliquely cut at the upper and lower ends of the end surface of the horizontal frame member. When the horizontal frame material is indirectly joined to the gap, the joining plate is welded to both sides of the horizontal frame material, and the joining plate is welded to the vertical frame material. Can be realized by making it lower than the height of the cross section of the horizontal frame member.

  In the present invention, the load bearing element may be a corrugated steel plate or a brace. Any of these corrugated steel plates and braces have an excellent function as a load bearing element, but regardless of these load bearing elements, the joint between each horizontal frame member and vertical frame member is a pin joint. By suppressing the influence of the bending moment, there is an advantage that a high axial force is borne on the vertical frame material.

The bearing wall according to the present invention is an outer peripheral frame formed by a pair of vertical frame members and upper and lower horizontal frame members, and an intermediate rail arranged side by side across the pair of vertical frame members of the outer peripheral frame. It is provided with a plurality of horizontal frame members and a load bearing element whose upper and lower ends are coupled to the horizontal frame members adjacent to each other in the vertical direction, and is partitioned into a plurality of partition layers arranged vertically with the horizontal frame material serving as the middle rail as a boundary. , in the load-bearing elements are provided bearing wall in each compartment layer, wherein a joint pin joints of each transverse frame member and the vertical frame members, said load bearing element provided in a part of the partition layer is this a surface material covering the partition layer, said load-bearing elements provided on the partition layer portion of the other are braces, the partition layer in which the blur over scan is provided, deformation to absorb the deformation of the partition layer absorbing means is provided, the blur over Minimum the partition layer provided, that the deformation absorbing means is present, because the surface material is the same rigidity and partition layer provided, transmitted from the side frame members to the vertical frame members bend the influence of the moment The axial force can be borne by the vertical frame material.

It is a front view of a bearing wall concerning one embodiment of this invention. It is an enlarged view of the II section in FIG. It is a graph which shows the yield strength of the junction part of II part of FIG. 1 compared with the yield strength in the case of rigid joining. It is a perspective view which shows the other structural example of the junction part of the II section of FIG. It is a perspective view which shows the further another structural example of the junction part of the II section of FIG. It is a perspective view which shows the deformation | transformation state by the effect | action of the bending moment in the structural example of FIG. It is a front view which shows the further another structural example of the junction part of the II section of FIG. It is a top view of the same configuration example. It is a front view which shows the further another structural example of the junction part of the II section of FIG. (A) is a plan view of the same configuration example, (B) is a broken side view of the same configuration example. It is the front view, horizontal sectional view, and top view which show the specific example which used the slanting material and the face material as the load-bearing element about the load-bearing wall which concerns on embodiment of FIG. It is a fragmentary perspective view which shows the relationship between the face material which is a load bearing element of the same load bearing wall, and a horizontal frame material. It is an expanded horizontal sectional view of the part which the same load bearing wall adjoins two sheets. It is a model front view which shows each example of the load bearing wall which uses a diagonal and a face material as a load bearing element which concerns on embodiment of FIG. It is a front view which shows the specific example which used the face material as a load-bearing element about the load-bearing wall which concerns on embodiment of FIG.

  An embodiment of the present invention will be described with reference to the drawings. The bearing wall of this embodiment is applied to buildings such as steel-framed detached houses and apartment houses, particularly buildings on the third floor. As shown in FIG. 1, the load-bearing wall 1 includes an outer peripheral frame 2 formed by a pair of vertical frame members 3 and 3 and upper and lower horizontal frame members 4 and 5, and the pair of vertical frames of the outer peripheral frame 2. A plurality of horizontal frame members 6 serving as intermediate rails arranged side by side between the members 3 and 3, and a load bearing element 10 having upper and lower ends coupled to the horizontal frame members 4, 5, and 6 adjacent to each other in the vertical direction. With. Here, three horizontal frame members 6 serving as intermediate rails are provided at equal intervals. For each vertical frame member 3 and horizontal frame members 4, 5, 6, for example, a square pipe, or a shape steel such as an H shape or a groove shape is used.

A joint portion (for example, a portion II shown in FIG. 1) between each horizontal frame member 4, 5, 6 and the vertical frame member 3 is a pin joint. The pin joint here refers to a joint that can be regarded as a pin joint, which is classified as a rigid joint or a pin joint in terms of structural mechanics as described above. Bonding using may be used. Specifically, the joint portion to be the pin joint is formed by welding the vertical piece 11a of the deformable joint metal 11 having a downward or upward L-shaped cross section to the center side of the vertical frame member 3 in the bearing wall width direction. Or it joins with a volt | bolt (not shown), the horizontal piece 11b of this deformation | transformation tolerance joining metal fitting 11 is opened from the corner | angular part by the length m used as a deformation | transformation area which accept | permits deformation, and the remaining part is made into horizontal frame material 4,5. It is set as the junction structure joined to 6 by welding or a volt | bolt (not shown). The length m may be appropriately designed by testing or simulation. Here, an angle member which is a section of L-shaped steel is used as the deformable joint metal 11.
In addition, the said deformation | transformation tolerance joining metal object 11 is a buffer material.

In the load bearing wall 1 of this configuration, since the load bearing elements 10 are coupled between the horizontal frame members 4, 5, 6, 6, 5, 6 adjacent to each other in the vertical direction, the load bearing element 10 provides horizontal rigidity. Enhanced and acts as a load-bearing wall.
As the joint between the horizontal frame members 4, 5, 6 and the vertical frame member 3 is a pin joint, as shown in the graph of FIG. 3 in comparison with a case where the joint is a rigid joint by welding, for example. The influence of the bending moment transmitted from the horizontal frame members 4, 5, 6 to the vertical frame member 3 can be minimized. Therefore, a high axial force can be applied to the vertical frame member 3. Further, the axial force that can be borne by the vertical frame member 3 in the structural calculation does not need to consider the bending moment, and can be calculated by a simple manual calculation similar to the brace structure. Furthermore, since the bending rigidity at the joint is small, even in a large deformation, the damage of the deformation region is small. For example, it is generally free even after experiencing a large deformation of 1/15 rad, which is generally considered to be acceptable. You can return to the original shape. Moreover, even if damaged, replacement work can be performed more easily than in the case of complete rigid joining.

  FIGS. 1 and 2 show a case where an L-shaped section such as an angle member is used as the deformation-allowing joint metal 11, but the configuration example shown in FIG. 4, the configuration example shown in FIGS. 7, the configuration example shown in FIG. 8, or the configuration example shown in FIGS. Note that the configuration examples described above are the same as the configuration examples shown in FIGS.

The configuration example of FIG. 4 shows an example in which a deformable joint metal 11 </ b> A having an open cross-sectional shape such as a lip groove steel or a groove steel is used instead of the deformable joint metal 11. In this case, with the opening side of the deformable joint metal 11A facing the vertical frame member 3 side, welding is performed to the surface of the vertical frame member 3 that faces the center side in the load-bearing wall width direction, and the rear surface of the deformable joint metal 11A And a joining structure in which end portions of the lateral frame members 4, 5, and 6 are joined by welding.
In this joint structure, the effect of reducing the influence of the bending moment is slightly inferior to that in the case where the angle member is used as the deformation-allowed joint metal 11, but the effect of the bending moment can still be suppressed to be small compared to the rigid joint. A high axial force can be applied to the vertical frame member 3.

  5 and 6 show the joints for the pin joint between the horizontal frame member 6 and the vertical frame member 3 on the side surface where the horizontal frame member 6 of the vertical frame member 3 is joined. The metal 12 is overlapped and welded at the welded portion 13, and the end face of the horizontal frame member 6 is welded to the deformation-allowable joint metal 12. The deformation-permissible joint metal 12 protrudes from the outer periphery of the horizontal frame material 6 in both the vertical direction and the horizontal width direction, and the welded portion 13 that performs the welding to the vertical frame material 3 of the deformation-permissible joint metal 12 is only at both ends in the width direction. And only the height range narrower than the height range of the horizontal frame member 6 is used. The said deformation | transformation tolerance joining metal object 12 consists of a steel plate thinner than the tube wall of the vertical frame material 3 which consists of square pipes, for example. Welding of the end face of the horizontal frame member 6 to the deformation-permissible joint metal 12 is performed on the entire outer periphery of the end face of the horizontal frame member 6. Note that the joint structure between the upper and lower horizontal frame members 4 and 5 and the vertical frame member 3 has the joint structure described above with reference to FIGS.

  In the case of this configuration, for example, as shown in FIG. 6, assuming that a downward external force F acts on the horizontal frame member 6, out-of-plane deformation occurs at the upper and lower portions of the deformation-permissible joint 12. That is, a deformable joint metal 12 made of a flat plate is interposed between the vertical frame member 3 and the end surface of the horizontal frame member 6, and the deformable joint metal 12 projects over the outer periphery of the horizontal frame member 3 and welds the entire periphery. Without welding, only the both ends in the lateral width direction are welded by the welded portion 13 and the welding range is limited to a height range narrower than the height range of the lateral frame member 6, so that the above-described out-of-plane deformation occurs, The bending moment at is small. For this reason, the end frame fixing degree of the horizontal frame member 6 is reduced, and a joining structure that can be regarded as pin joining is obtained. A portion where the out-of-plane deformation occurs is a deformation region 12a. In this way, pin bonding can be realized as a bonding structure using the tenacity of the deformation-allowable bonding metal 12 made of a thin plate.

  7 and 8 are examples in which the horizontal frame member 6 is joined directly to the vertical frame member 3 by a welded portion 16. In this example, a gap 14 is formed between the upper and lower ends of the end surface of the horizontal frame member 6 and the side surface of the vertical frame member 3 by providing the oblique cut portions 15 at the upper and lower ends at the end portion of the horizontal frame member 6. Yes. The height range of the welded portion 16 is the entire area between the upper and lower oblique cut portions 15 and 15 on the end surface of the horizontal frame member 6. Note that the joint structure between the upper and lower horizontal frame members 4 and 5 and the vertical frame member 3 has the joint structure described above with reference to FIGS.

In the case of this configuration, the height range of the welded portion 16 of the horizontal frame material 6 is low, and the gap 14 is formed at the top and bottom, so that the fixing degree of the horizontal frame material 6 to the vertical frame material 3 is reduced, and the pin It becomes a junction structure. The deformation region is the upper and lower surface end portions of the horizontal frame material 6 and the joint surface portion with the horizontal frame material 6 of the tube wall of the vertical frame material 3 made of a square pipe. Since it is welded to the center in the width direction of the vertical frame member 3 made of a square pipe, the vertical frame member 3 side is also deformed, and an effect that can be regarded as a pin joint as a whole is obtained. Further, by providing the oblique cut portion 15, openings are formed above and below the end portion of the horizontal frame member 6, and this opening functions as a drain hole for the electrodeposition liquid.
In the case of this configuration, although the function of allowing deformation is lower than the specification using the deformation-allowing joint metal 11 of the angle member in the embodiment of FIGS. 1 and 2, a separate member is unnecessary and advantageous in terms of cost.

In the example of FIGS. 9 and 10, a joining plate 17 made of a flat steel plate is attached to both side surfaces of the horizontal frame member 6 by welding at a welded portion 19, and the joining plate 17 protrudes from the end surface of the lateral frame member 6. Then, the protruding end is welded to the side surface of the vertical frame member 3 by the welding portion 18. The horizontal frame member 6 is a square pipe having a narrower width than the vertical frame member 3, and the joining plate 17 is joined to an intermediate portion in the width direction of the vertical frame member 3. The vertical width of the joining plate 17 is narrower than the vertical width of the horizontal frame member 6.
In the case of this configuration, since the degree of fixation of the horizontal frame member 6 to the vertical frame member 3 is reduced, a joining structure that can be regarded as pin joining is obtained. The deformation area becomes the joint surface between the upper and lower end portions of the horizontal frame member 6 and the tube wall of the vertical frame member 3 made of a square pipe. Since welding is performed in the vicinity of the center in the width direction of the vertical frame member 3 made of a square pipe, the vertical frame member 3 side is also deformed to produce an effect of pin joint as a whole. In the case of this configuration example, the advantage of facilitating draining of the electrodeposition liquid is also obtained.

  FIG. 11 shows an example in which the face material 7 and the brace 8 are used as the load bearing element 10 in the load bearing wall 1 of FIG. Here, the outer peripheral frame 2 assembled in a rectangular shape is partitioned into a plurality of partition layers a and b arranged vertically, with a plurality of horizontal frame members 6 serving as intermediate rails as boundaries, and some partition layers a The face material 7 is provided as the load bearing element 10, and the brace 8 is provided as the load bearing element 10 in the other partition layer b. The partition layer b provided with the braces 8 is provided with a deformation absorbing device 9 for earthquake resistance that absorbs deformation of the partition layer b. In the example of the figure, it is equally divided into four partition layers, a brace 8 is provided in the partition layer b at the upper and lower ends, and a face material 7 is provided in the intermediate partition layer a.

  In addition, although this load-bearing wall 1 is comprised as wall panels, such as an outer wall panel, it may be comprised as a wall used as a part of a frame construction method building. Further, the vertical frame member 3 may be a member that becomes a pillar of a building, or may be a member that is provided separately from the pillar and provided along the pillar in a panel combined use frame construction method or the like. The pillar may be a pillar built in a wall.

  Shaped steel is used for the left and right vertical frame members 3 and 3, and square pipes (also called square steel pipes) are used in the illustrated example. The horizontal frame members 4 and 5 at the upper and lower ends are made of steel having a narrower cross section than that of the vertical frame member 3, for example, a square pipe, and are arranged so as to be aligned with the indoor side surface of the vertical frame member 3. In FIG. 11, the horizontal frame material 6 serving as the middle rail is formed of the same shape steel as the horizontal frame materials 4 and 5 at the upper and lower ends, for example, a square pipe. In addition to this, the horizontal frame member 6 serving as an intermediate beam may use a steel shape obtained by joining two channel steels back to back. In addition, all the shape steels used in the embodiments of this specification are lightweight shape steels.

  A corrugated plate made of a corrugated steel plate is used as the face material 7 that becomes the load bearing element 10 of the partition layer a. The face material 7 made of this corrugated sheet is a corrugated steel sheet in which crests 7a and troughs 7b (FIG. 12) extending in one direction are alternately arranged, and here the corrugated ridge line direction extends in the vertical direction. That is, it is stretched on the partition layer a so that the wave crests 7a and troughs 7b extend in the vertical direction. In this example, the face plate 7 made of corrugated plates uses a deck plate, and has a rectangular or trapezoidal cross section in which the top of the crest 7a serving as a wavy mountain and the bottom of the trough 7b serving as a wave trough are flat portions. As shown in FIG. 12, the upper and lower ends of the face material 7 made of the corrugated plate have its troughs 7b fixed to the horizontal frame members 4, 5, and 6 by screws or the like or welding. . In addition, the face material 7 made of the corrugated plate of each partition layer a may be individually manufactured, or may be one in which one corrugated plate is cut.

When the face material 7 to be the load bearing element 10 is a corrugated sheet, when an in-plane shear force is applied, the ridges of the corrugation are distorted in a direction intersecting the ridge line direction, so that the in-plane shear force is increased. On the other hand, stable energy absorption without slip property can be performed. Therefore, a history closer to the spindle type is shown.
As the face material 7, in addition to the corrugated sheet, a flat sheet material such as a skin panel or a load-bearing plywood may be used.

  In FIG. 11, the braces 8 that become the load-bearing elements 10 of the partition layer b are made of square pipes or other shape steels, and are provided in each partition layer b so as to incline in opposite directions and to approach each other at one end. ing. In the example of FIG. 11, the two braces 8 of the partition layer b at the upper end are joined to the upper lateral frame member 4 via the deformation absorbing device 9 with the upper ends thereof approaching each other. The lower ends of the two braces 8 are spread toward each other, and are joined to the horizontal frame member 6 serving as an intermediate rail. The two braces 8 of the partition layer b at the lower end are joined to the lateral frame member 5 at the lower end via the deformation absorbing device 9 with the lower ends thereof being close to each other. The upper ends of these two braces 8 are spread side ends of each other, and are joined to the horizontal frame member 6 serving as an intermediate rail.

  The deformation absorbing device 9 will be specifically described. The deformation absorbing device 9 of the upper partition layer b and the deformation absorbing device 9 of the lower partition layer b have the same configuration if they are turned upside down. Here, the deformation absorbing device 9 of the upper partition layer b is taken as an example. Take it.

  The deformation absorbing device 9 includes a pair of vertical parallel plate portions 22 and 22 arranged in parallel and spaced apart from each other in the wall width direction, and a plate-like web portion for energy absorption that connects the parallel plate portions 22 and 22. 23 and a pair of upper and lower horizontal plate portions 24, 24 connected between the upper end and the lower end of the pair of parallel plate portions 22, 22, respectively.

  FIG. 13 shows an enlarged horizontal section in the vicinity of the adjacent portion of the two load bearing walls 1 and 1 in a state where the outer wall panel is provided with an exterior material or the like. An exterior surface material 43 is stretched on the outdoor side of the outer peripheral frame 2 via a base material 41 made of plywood and an air layer 42, and this surface is placed on the surface of the outer peripheral frame 2 where the face material 7 made of the corrugated plate is stretched. Both surfaces of the material 7 are filled with heat insulating materials 44 and 45 such as glass wool. An interior surface material 46 is stretched on the indoor side of the outer peripheral frame 2. A column heat insulating surface material 47 made of glass wool board or the like is stretched on the outdoor side and indoor side of the vertical frame member 3 adjacent to the two bearing walls 1, 1.

  In this way, it is divided into a plurality of partition layers a and b arranged in the vertical direction, and the strength of the structure in which the strength element 10 of some of the partition layers a is the face material 7 and the strength element 10 of the other partition layer b is the brace 8. In the wall 1, openings (not shown) for facilities, lighting, and the like can be provided in the partition layer b in which the load bearing element 10 is the brace 8 without lowering the load carrying capacity and disadvantages in construction.

  The partition layer a using the face material 7 as the load bearing element 10 shows a history close to a spindle type and has an excellent energy absorption performance. The partition layer b using the brace 8 as the load-bearing element 10 is more rigid than the partition layer a using the face material 7 as it is, but the deformation absorbing device 9 that absorbs the deformation of the partition layer b is provided. The rigidity can be easily adjusted to be the same as that of the partition layer a using the face material 7.

  14A to 14C show examples of the arrangement of the partition layer a provided with the face material 7 as the load bearing element 10, the partition layer b provided with the brace 8, and the arrangement of the deformation absorbing device 9. FIG. ing. In the example of FIG. 14B, the partition layer b provided with the braces 8 is set at two locations on the center side, and in these partition layers b, the upper end side of each of the two braces 8 is the intersection point side, and in the vicinity of the intersection point. A device 9 is arranged. 14C, as in the example of FIG. 14B, the partition layer b provided with the braces 8 is set at two locations on the center side. However, in the partition layers b at two locations on the center side, The inclination directions are opposite to each other, and the braces 8 of the upper partition layer b and the braces 8 of the lower partition layer b are arranged in a straight line so as to form an X shape. FIG. 14D shows an example in which braces 8 are provided as the load-bearing elements 10 in all the partition layers b.

  FIG. 15 shows an example in which the face material 7 is used for all partition layers as the load bearing element 10 in the load bearing wall 1 of FIG.

DESCRIPTION OF SYMBOLS 1 ... Load-bearing wall 2 ... Outer frame 3 ... Vertical frame material 4, 5, 6 ... Horizontal frame material 7 ... Face material 8 ... Brace 10 ... Strength element 11 ... Deformation allowable joining metal 11a ... Vertical piece 11b ... Horizontal piece 12 ... Deformation Allowable metal joint 13 ... welded part 14 ... gap 15 ... oblique cut part 17 ... joined plate 18 ... welded part

Claims (7)

An outer peripheral frame formed by a pair of vertical frame members and upper and lower horizontal frame members, and a plurality of horizontal frame members that serve as middle rails arranged side by side across the pair of vertical frame members of the outer peripheral frame; And a load-bearing element having upper and lower ends coupled to the horizontal frame material adjacent to the upper and lower sides, and divided into a plurality of divided layers arranged vertically with the horizontal frame material serving as the middle rail as a boundary, and In the bearing wall where the elements are provided,
The joint portion between each horizontal frame member and the vertical frame member is a pin joint,
The load-bearing element provided in a part of the partition layers is a face material covering the partition layer, the load-bearing element provided in the other part of the partition layers is a brace, and the partition layer provided with the brace Further, a deformation absorbing means for absorbing the deformation of the partition layer is provided, and the partition layer provided with the brace has the same rigidity as the partition layer provided with the face material because of the presence of the deformation absorbing means. Bearing wall characterized by being.   2. The bearing wall according to claim 1, wherein the joint portion of the pin joint between the horizontal frame member and the vertical frame member absorbs a bending moment acting between the horizontal frame member and the vertical frame member. Bearing wall with deformation area. 3. The bearing wall according to claim 1, wherein the joint portion of the pin joint between the horizontal frame member and the vertical frame member is a vertical piece of a deformable joint metal having a L-shaped cross-section facing downward or upward. Join the vertical frame material to the surface facing the center of the bearing wall width direction, open the horizontal piece of the joint metal from the corner to the length that will be the deformation area allowing deformation, and the remaining part to the horizontal frame material Bearing wall that is a joined structure.   The load bearing wall according to claim 1 or 2, wherein the pin joint between the horizontal frame member and the vertical frame member is a groove-shaped or lip-grooved deformable joint metal having an open cross-sectional shape, and the opening side. Is welded to the surface facing the center side in the bearing wall width direction of the vertical frame material toward the vertical frame material side, and the end of the horizontal frame material is welded to the back surface of the deformation-allowable joint metal Bearing wall that is a joint structure.   The bearing wall according to claim 1 or 2, wherein a joint portion of the pin joint between the horizontal frame member and the vertical frame member is a flat plate on a side surface of the vertical frame member that joins the horizontal frame member. A deformation-permissible joint metal is overlapped and welded, and an end face of the horizontal frame member is welded to the deformation-permissible joint metal, the deformation-permissible joint metal projects over the outer periphery of the horizontal frame member, and the vertical length of the deformation-permissible joint metal A load bearing wall having a joint structure in which only the both ends in the lateral width direction or the upper and lower ends are provided on the frame material to be welded.   The bearing wall according to claim 1 or 2, wherein the joint portion of the pin joint between the horizontal frame member and the vertical frame member is a portion excluding upper and lower ends in the height direction of the cross section of the horizontal frame member. The vertical frame member is welded directly or via a joining plate, and the vertical frame member is inclined in the vertical direction with respect to the vertical frame member between the upper and lower ends of the end surface of the horizontal frame member and the vertical frame member. A bearing wall that is a joint structure having a gap that allows the   The bearing wall according to any one of claims 1 to 6, wherein the bearing element of the face member is a corrugated steel sheet.

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