JP6404015B2 - Load bearing wall frame - Google Patents

Description

  The present invention relates to a load-bearing wall frame applied to a building such as a steel frame, and more particularly to an improvement in a structure for joining the load-bearing unit to a column.

  As a load-bearing wall frame used in a building, a ladder-shaped load-bearing wall frame including two parallel metal vertical members standing in parallel and a plurality of metal cross members laid side by side between the vertical members is provided. Are known. In addition to this, an opening is formed between the left and right columns by welding a cross member made of a steel material having an H-shaped cross-section with innumerable holes in the web portion (Patent Document 1) or between the left and right columns. The thing (patent document 2) which joined the plate-shaped architectural fixture which has is proposed.

A conventional ladder-shaped load-bearing wall frame is effective when the width is narrow, but may not be effective when the width is wide. In other words, the conventional ladder-shaped load-bearing wall frame has 0.5P (1P is 0.8 to The load-bearing wall frame has a narrow width such as about 1.1 m). Therefore, it was effective when the width was narrow, but when the width of the load bearing wall was widened, the bending failure of the vertical beam and the horizontal beam, or the destruction of the joint became dominant. The effect of the load-bearing wall frame may not be expected so much.
If the cross section of the load bearing element is enlarged, it can be applied to a wide load bearing wall, but there is a load bearing wall frame between the columns on both sides of the load bearing wall. It is difficult to provide Therefore, there are restrictions on the floor plan of the building.
In addition, the ladder-shaped load-bearing wall frame joins the vertical beam and the horizontal beam of the ladder that also serves as the shaft column of the building, so if the load-bearing wall frame is damaged due to a large earthquake, the entire load-bearing wall frame It needs to be replaced.

  What welded the crosspiece which consists of a steel material of the cross-section H shape which provided the countless hole in the web part of patent document 1, and what joined the plate-shaped building fixture which has an opening part of patent document 2, In addition, the whole of the cross member or the plate-shaped construction fixing bracket is an integral member. For this reason, in order to manufacture products that are suitable for various width dimensions of bearing walls of various buildings, or that have appropriate horizontal resistance required for buildings, separate the above-mentioned cross members and construction fixtures separately. There is a problem that the compatibility with the size and required strength is low.

  Patent Document 4 has been proposed as a solution to these problems. In the load-bearing wall frame of this document, as shown in FIG. 9A, both ends of the load-bearing unit 23 are joined to a pair of adjacent pillars 22 and 22, and the load-bearing unit 23 is a pair of horizontal rails separated vertically. 24, 25 and a shearing force bearing member 26 interposed between the upper and lower horizontal rails 24, 25. Here, the load bearing unit 23 includes a pair of horizontal bars 24 and 25 that are separated from each other in the vertical direction, and a plurality of the horizontal bars 24 and 25 that are joined at a plurality of positions in the longitudinal direction to form the shear force bearing member 26. It is made into the ladder shape which consists of the vertical crosspiece 31.

  The load bearing unit 23 is bolted to the column 22 with bolts 27 oriented in a direction perpendicular to the wall surface of the load bearing wall, as shown in an enlarged view in FIG. Specifically, a planar-shaped T-shaped column joint hardware 30 provided at both ends of the upper and lower horizontal rails 24 and 25 and a side wall of the column 22 are attached by welding to the longitudinal direction of the horizontal rails 24 and 25. The projecting unit mounting pieces 31 are overlapped with each other, and the overlapped portion is joined with a bolt 27 oriented in a direction perpendicular to the wall surface of the load bearing wall, thereby joining the load bearing unit 23 to the column 22.

  According to this configuration, the horizontal force acting on the building due to an earthquake or the like is transmitted from the pillars 22 on both sides to the upper and lower horizontal bars 24 and 25 of the load bearing unit 23, and between the upper and lower horizontal bars 24 and 25 of the load bearing unit 23. The horizontal force is borne by the interposed shear force bearing member 26, and a frame that resists the horizontal force can be configured. Further, the stress is dispersed throughout the load bearing wall frame composed of the shear force bearing member 26, the upper and lower horizontal rails 24, 25, and the left and right pillars 22, 22, so that the frame is highly deformable and strong. Can be constructed, and the building can be given excellent seismic performance.

The load bearing unit 23 extends in the horizontal direction between the left and right columns 22, 22, so that the wide opening between the left and right columns is different from that interposed between the left and right columns along the vertical direction. Since the stress can be dispersed and supported as described above, the present invention can be applied even if the width between the left and right columns 22 is wide.
Further, since the load bearing unit 23 is composed of the upper and lower horizontal rails 24 and 25 and the shearing force bearing member 26 that connects them, the shearing force bearing member 26 is different from the shearing force bearing member 26 that is composed of an integral member. By adjusting the number and cross-sectional shape and adjusting the lengths of the upper and lower horizontal rails 24 and 25 which are simple shaped members, it is possible to easily cope with various required dimensions and strengths.

  Moreover, since the both ends of the upper and lower horizontal rails 24 and 25 are joined to the pillars 22 by the bolts 27, the strength unit 23 is stronger than the other parts of the building when subjected to a large horizontal load. By designing so as to be damaged first, it is possible to perform repair by simply replacing the damaged load-bearing unit 23, and the repair becomes simple.

JP 2005-325637 A JP 2007-154423 A Japanese Patent Laid-Open No. 10-184074 JP 2014-066604 A

  In the example of Patent Document 4, various excellent advantages are obtained as described above. However, since the strength unit 23 is joined to the column 22 with the bolt 27 oriented in the vertical direction with respect to the wall surface of the strength wall as shown in FIG. 9B, the inner periphery of the bolt hole when the horizontal force is applied. In the range of play that occurs between the bolt and the outer periphery of the bolt, there is a problem that slip occurs in the left and right and up and down directions, resulting in loss of rigidity. As a solution to this loss of rigidity, it is possible to use friction bonding using high-strength bolts, but it is difficult to adopt high-strength bolts in buildings that require mass production, such as housing, because quality control is difficult. is there. In addition, if the welding joint is used instead of the bolt joining, it is necessary to replace the pillar when replacing the load bearing unit after a large earthquake.

  The object of the present invention is to provide a loss-of-rigidity loss due to sliding of the load-bearing unit in the left-right and up-down directions by bolting the load-bearing wall frame that can form openings and give excellent earthquake-proof performance to the building with a medium bolt. It is to be able to realize without causing the problem.

In the bearing wall frame of the present invention, both ends of the bearing unit are joined to the opposing side surfaces of a pair of adjacent vertical columns with bolts. A load-bearing wall frame having a shearing force bearing member interposed between the cross rails,
Of junction four locations where the bonding upper and lower pair of the ends and the pillars of the rungs in each of the bolt of the force-bearing unit, none of the above and below each rung, is the junction of one end vertically It is characterized in that it is joined with a bolt facing in the direction, and the joint at the other end is joined with a bolt facing in the longitudinal direction of the cross rail .

According to this configuration, at least one of the four joints joining the ends and the pillars of the pair of upper and lower horizontal bars of the load bearing unit is joined with the bolts facing in the vertical direction, and at least the other 1 The joint part of the location is joined with the bolt which faces the longitudinal direction of a crosspiece. Therefore, it becomes a joining structure which bears the load of two directions which acts on the up-and-down direction and the longitudinal direction of a yield strength unit with the tensile strength of a bolt. Therefore, even if an intermediate bolt is used as the bolt, slip does not occur in the play between the inner periphery of the bolt hole and the outer periphery of the bolt, resulting in a joint that suppresses slipping in two directions, and rigidity due to slipping. The loss problem is avoided. In addition, since the joint between the load bearing unit and the pillar is all bolted, when the load bearing wall frame is damaged due to a large earthquake or the like, it can be restored simply by replacing the damaged load bearing unit.
In particular, one end of each of the upper and lower horizontal rails is joined by a bolt that faces the vertical direction, and the other end is joined by a bolt that faces the longitudinal direction of the horizontal rail. The sliding in the up-down direction and the longitudinal direction can be suppressed at both ends.
In addition, this load-bearing wall frame has a structure in which both ends of the load-bearing unit are joined to a pair of adjacent pillars with bolts. An opening can be formed.
Since the load bearing unit has a pair of horizontal rails that are separated from each other vertically and a shearing force bearing member interposed between the upper and lower horizontal rails, the horizontal force acting on the building due to an earthquake or the like is It is transmitted to the upper and lower horizontal rails of the load bearing unit, but the horizontal force is borne by the shear force bearing member interposed between the upper and lower horizontal rails, and resists the horizontal force. Further, the stress is dispersed throughout the load bearing wall frame including the shear force bearing member, the upper and lower horizontal rails, and the left and right columns of the load bearing unit. For this reason, it is possible to construct a frame having a high deformation capacity and a strong rigidity, and it is possible to give an excellent earthquake resistance performance to the building.
In this invention, the joint part of either one of the upper and lower horizontal bars joined to any one of the columns is a bolt facing the vertical direction, and the joint part of the other upper or lower horizontal bar is the You may join with the volt | bolt which faces a longitudinal direction.

In the present invention, of each of the joint portions, a joint portion that is joined by a bolt that faces the vertical direction, and a joint portion that is joined by a bolt that faces the longitudinal direction of the cross rail is a bolt joint structure using two bolts. It is also good.
By using two bolts in each of the bolt joints that bear the load by the tensile strength of the bolts as described above, it is possible to surely prevent slipping and reliably join with a small number of bolts.

In this invention, the joint portion joined by the bolts facing in the vertical direction is a pair of upper and lower joint hardware that protrudes and joins the side surface of the pillar on the strength unit joining side and contacts the upper and lower surfaces of the horizontal rail, It is a structure in which a bolt facing the vertical direction is penetrated across the horizontal beam upper and lower surface forming portions that respectively constitute the upper and lower surfaces of the horizontal beam, and the joining portion that is joined by the bolt that faces the longitudinal direction of the horizontal beam is the above-mentioned A structure may be adopted in which a bolt facing the longitudinal direction of the horizontal beam is penetrated across a metal joint that protrudes and is bonded to a side surface of the column on the strength-bearing unit bonding side and an end plate provided on the horizontal beam. .
By providing each joint metal in this manner, a joint structure that eliminates slippage by applying a load in each direction with tensile strength by using a bolt facing in the vertical direction and a bolt facing in the longitudinal direction can be realized with a simple configuration.

In this invention, the shear force bearing member of the load bearing unit may be a plurality of vertical bars joined at a plurality of longitudinal positions between the upper and lower horizontal bars.
If the shearing force bearing member of the load bearing unit is a ladder formed of a plurality of vertical bars, the shearing force is shared by the plurality of vertical bars, so that the stress is dispersed and the plastic deformation capacity is improved. The frame can be made even stronger.

In the bearing wall frame of the present invention, both ends of the bearing unit are joined to the opposing side surfaces of a pair of adjacent vertical columns with bolts. A load bearing wall frame having a shearing force bearing member interposed between the cross rails, wherein four ends of the pair of upper and lower horizontal rails of the load bearing unit and the pillars are joined by the bolts, respectively. In each of the upper and lower horizontal rails, the joint at one end is joined with a bolt facing the vertical direction, and the joint at the other end is joined with a bolt facing the longitudinal direction of the horizontal rail , A bearing wall frame that can form an opening and provides excellent seismic performance to the building is joined by bolts with medium bolts, etc., which may cause a problem of rigidity loss due to sliding of the load bearing unit in the horizontal and vertical directions. It can be realized without.

It is a front view which shows the structure of the load-bearing wall frame concerning 1st Embodiment of this invention. (A) is a partially broken front view of the yield strength unit, (b) is an enlarged view of the IIB portion in (a), (c) is an enlarged view of the IIC portion in (a), and (d) is the same drawing. It is an enlarged plan view of the IIA part in (a). It is a partial front view which shows the detail of the shearing burden member in a yield strength unit. It is a front view which shows schematic structure of a load-bearing wall frame. It is explanatory drawing of the bending moment which acts on a yield strength unit. It is a partially broken front view of the yield strength unit concerning a proposal example . (A) is a partially broken front view of a load-bearing unit according to another proposed example , (b) is an enlarged view of a VIIB portion of FIG. (A), and (c) is an enlarged plan view of a VIIB portion of FIG. It is. It is a graph which shows the yield strength test result of the yield strength unit using the yield strength unit joining structure of this invention. (A) is a front view of the load-bearing wall frame of a prior art example, (b) is an enlarged detail drawing of the B section in the same figure (a).

  A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows an installation example of a load-bearing wall frame according to this embodiment in a building. This load-bearing wall frame 1 is formed by joining both ends of a load-bearing unit 3 to a pair of adjacent columns 2 and 2. The column 2 is a so-called shaft column that bears the strength of the building, and is made of a shape steel such as a square steel pipe. Between the adjacent pillars 2 and 2, a plurality of load bearing units 3 are arranged in the height direction.

  FIG. 4 shows a schematic diagram of this bearing wall frame 1. Each column 2 has an upper end joined to the beam 7 and a lower end joined to the beam 8 or the foundation or foundation. The above building has a frame structure in which steel pillars and beams 7 and 8 are pin-joined. By providing this load-bearing wall frame 1 at a plurality of locations, or by using braces (not shown) in combination, It is a frame that bears power. The building is, for example, a detached house, an apartment house, or a low-rise building for offices, school buildings, commercial facilities, and the like.

  In FIG. 1, each load-bearing unit 3 includes a pair of horizontal bars 4 and 5 that are separated from each other in the vertical direction, and a shearing force bearing member 6 that is interposed between the upper and lower horizontal bars 4 and 5. The upper and lower horizontal rails 4 and 5 are made of a steel material such as a square steel pipe. The shearing force bearing member 6 is of a strength that is damaged earlier than other members when an excessive horizontal force or the like is applied to the building. In the example of the figure, the shearing force bearing member 6 is a vertical beam 11 joined to each of a plurality of positions in the longitudinal direction between the upper and lower horizontal beams 4 and 5, and the load bearing unit 3 has a horizontal ladder shape. The shearing force bearing member 6 may be a member other than the vertical rail 11 such as a face material.

  In each strength unit 3, at least one of the four joint portions 12A to 12D joining the both ends of the pair of upper and lower horizontal rails 4 and 5 and the column 2 is a bolt 9 (see FIG. 2), and at least one other joint is a bolt joint structure in which the bolts 10 (FIG. 2) facing the longitudinal direction of the cross rails 4 and 5 are joined.

  Specifically, as shown in FIG. 2A, the left end of the upper horizontal beam 4 among the four joint portions 12A to 12D that respectively join the both ends of the pair of upper and lower horizontal beams 4 and 5 and the column 2. 12A of the column 2 and the right end of the lower horizontal rail 5 and the junction 12D of the column 2 are joined with two bolts 9 facing each other in the vertical direction. Further, the junction 12B between the right end of the upper horizontal beam 4 and the column 2 and the junction 12C between the left end of the lower horizontal beam 5 and the column 3 are respectively arranged in two directions facing the longitudinal direction of the horizontal beam 4, 5. A bolt joint structure is employed in which the bolts 10 are joined together. Bolts 9 and 10 are medium bolts in this example.

  In the bolt joint structure with the bolts 9 facing the up and down direction, as shown in the enlarged sectional view and the enlarged plan view in FIGS. 2C and 2D, it protrudes from the side of the column 2 on the strength unit joining side and is joined by welding or the like. The pair of upper and lower joint hardware 13 and 13 that are in contact with the upper and lower surfaces of the horizontal rails 4 and 5, respectively, and the horizontal beam upper and lower surface forming portions 14a and 14b that configure the upper and lower surfaces of the horizontal rails 4 and 5, respectively. Bolts 9 that face in the vertical direction are passed through. Here, an example in which the upper and lower horizontal rails 4 and 5 are formed of square steel pipes is shown, and therefore the horizontal rail upper and lower surface forming portions 14a and 14b are upper and lower pipe wall portions of the square steel pipe. When the horizontal bars 4 and 5 are made of I-shaped steel or H-shaped steel, these upper and lower flanges become the horizontal beam upper and lower surface forming portions 14a and 14b.

  As shown in an enlarged cross-sectional view in FIG. 2 (b), in the bolt joint structure with the bolt 10 facing the longitudinal direction of the cross rails 4 and 5, it protrudes from the side surface of the column 2 on the strength unit joining side and is joined by welding or the like. The bolts 10 facing in the longitudinal direction are passed through the joining hardware 15 and the end plates 16 provided on the horizontal rails 4 and 5. Here, a cut piece of a square steel pipe that opens in a direction perpendicular to the wall surface of the load bearing wall is used as the joint metal 15 on the column 2 side, but a steel material having another shape such as a grooved steel may be used.

  In FIG. 2A, the shear force bearing member 6 of the load bearing unit 3 is composed of the vertical bars 11 respectively joined to a plurality of longitudinal positions between the upper and lower horizontal bars 4 and 5. Channel steel is used. As shown in FIG. 3 in an enlarged manner, the vertical beam 11 made of channel steel has the outer surface of the web arranged in the same plane as the side surfaces of the horizontal beams 4 and 5, and another joining plate 17 is connected to the end of the vertical beam 11. The vertical bars 11 and the horizontal bars 4 and 5 are joined to each other by welding or the like so as to extend over the side surfaces of the horizontal bars 4 and 5. Thereby, the vertical beam 11 and the horizontal beam 4, 5 are joined. A plurality of holes 18 for reducing the yield strength are provided in the vertical beam 11 within a range where the joining plate 17 does not overlap.

According to the load-bearing wall frame 1 having this configuration, both ends of the load-bearing unit 3 are joined to a pair of adjacent columns 2 and 2, and the load-bearing unit 3 includes a pair of horizontal rails 4 and 5 that are vertically separated from each other. Since the shear load bearing member 6 interposed between the horizontal rails 4 and 5 is provided, the stress is dispersed, the plastic deformation ability is improved, and a rigid frame can be constructed. Here, since the load bearing unit 3 has a ladder shape having a plurality of vertical bars 11, the plurality of vertical bars 11 share the shearing force. Therefore, it is possible to construct a more rigid frame.
Ladder-shaped load-bearing units are generally configured to be connected between upper and lower beams as a vertical shape, but by using such a horizontal shape, the load-bearing wall can be connected between columns 2 and 2 on both sides. An opening (not shown) having a wide width can be provided, and the structure can be applied even when the width between the columns 2 and 2 is wide, and the effect of stress dispersion, which is an advantage of the ladder shape, can be obtained. .

In particular, in the load bearing wall frame 1, in the joint structure of the load bearing unit 3 to the pillar 2, of the four joint portions 12A to 12D that join the both ends of the pair of upper and lower horizontal rails 4, 5 and the pillar 2, respectively. Two joint portions 12A and 12D are joined by bolts 9 facing up and down, and the other two joint portions 12B and 12D are joined by bolts 10 facing the longitudinal direction of the cross rails 4 and 5. ing.
For this reason, unlike the conventional example (FIG. 9) in which the end of the load bearing unit is joined to the column with a bolt oriented in a direction perpendicular to the wall of the load bearing wall in the load bearing wall frame, When a horizontal force is applied, no slip occurs at the bolt joint in the left-right and up-down directions, and no rigidity loss occurs as shown in the graph of the proof stress test results in FIG. FIG. 5 shows a bending moment acting on the load bearing unit 3 having a ladder shape.

  In this embodiment, the upper and lower ends of the load-bearing unit 3 are all joined to the column 2 with bolts 9 and 10, so that the load-bearing unit 3 precedes the other parts of the building when subjected to a large horizontal load. By designing so as to be damaged, it is possible to perform repair by simply replacing the damaged load-bearing unit 3, and the repair becomes simple.

FIG. 6 shows a reference proposal example . In this proposed example , in the previous embodiment shown in FIGS. 1 to 5, either the upper or lower of the pair of upper and lower horizontal rails 4, 5 is used as the joint structure of the end of the load bearing unit 3 to the column 2. Both ends of the horizontal beam (here, the lower horizontal beam 5) are joined with the bolts 9 facing in the vertical direction, and the other horizontal beam (here, the upper horizontal beam 4) is bonded to the longitudinal direction of the horizontal beams 4, 5 It is joined with a bolt 10 facing. Other configurations are the same as those in the previous embodiment.

Also in the case of this proposal example , in the joint structure of the load bearing unit 3 to the pillar 2, two of the four joint portions 12A to 12D joining the both ends of the pair of upper and lower horizontal rails 4, 5 and the pillar 2 respectively. The joints 12C and 12D are joined by bolts 9 that face upward and downward, and the other two joints 12A and 12B are joined by bolts 10 that face the longitudinal direction of the cross rails 4 and 5. Therefore, compared with the case of the load-bearing wall frame of the conventional example (FIG. 9), no slippage occurs in the left and right and up and down directions at the bolt joint when a horizontal force is applied, and no rigidity loss occurs. Other functions and effects are the same as in the previous embodiment.

FIG. 7 shows another reference proposal example . In this proposed example , in the previous embodiment shown in FIGS. 1 to 5, either the upper or lower of the pair of upper and lower horizontal rails 4, 5 is used as the joint structure of the end of the load bearing unit 3 to the column 2. The right end of the horizontal beam (here, the upper horizontal beam 4) is joined to the column 2 with the bolt 9 facing in the vertical direction, and the left end of the other horizontal beam (here, the lower horizontal beam 5) is connected to the horizontal beam 4, 5 It is joined to the column 2 with a bolt 10 which faces the longitudinal direction of.

  The other ends of the pair of upper and lower horizontal rails 4 and 5 are joined to the column 2 by bolts 19 that face in a direction perpendicular to the wall surface of the load bearing wall, similarly to the load bearing wall frame of the conventional example of FIG. Specifically, at the joint 12A to the column 2 at the left end of the upper horizontal rail 4, as shown in the enlarged front view and the enlarged plan view in FIGS. The provided planar T-shaped column-jointed hardware 20 and the planar-shaped T-shaped unit mounting piece 21 joined to the side surface of the column 2 by welding or the like are overlapped, and the overlapping portion is perpendicular to the wall surface of the load bearing wall. A bolt 19 facing in the direction is passed through. The column joining hardware 20 provided at the left end of the horizontal rail 4 includes an end plate 20a and a vertical piece 20b protruding from the end plate 20a, and the vertical piece 20a is overlapped on the unit mounting piece 21 on the column 2 side. Similarly, in the joint 12D to the column 2 at the right end of the lower horizontal beam 5, the plane shape T-shaped column bonding hardware 20 provided at the right end of the horizontal beam 5 and a plane bonded by welding or the like to the side surface on the column 2 side. A T-shaped unit mounting piece 21 is overlapped, and a bolt 19 oriented in a direction perpendicular to the wall surface of the load bearing wall is passed through the overlapped portion. Other configurations are the same as those in the previous embodiment.

Also in the case of this proposal example , in the joint structure of the load bearing unit 3 to the pillar 2, one of the four joints 12A to 12D joining the two ends of the pair of upper and lower horizontal rails 4 and 5 and the pillar 2 respectively. 9 is joined with a bolt 9 facing in the up-and-down direction, and the other joint portion 12C is joined with a bolt 10 facing in the longitudinal direction of the cross rails 4 and 5, so that FIG. Compared to the conventional load-bearing wall frame, no slip occurs in the left and right and up and down directions at the bolt joint when a horizontal force is applied, and no rigidity loss occurs. Other functions and effects are the same as in the previous embodiment.

DESCRIPTION OF SYMBOLS 1 ... Bearing wall frame 2 ... Pillar 3 ... Strength unit 4,5 ... Horizontal beam 6 ... Shear force bearing member 9,10 ... Bolt 11 ... Vertical beam 12A-12D ... Joining part 13 ... Joining metal | hardware 14a, 14b ... On horizontal beam Lower surface forming portion 15 ... metal fitting 16 ... end plate

Claims (5)

Both ends of the load-bearing unit are joined to the opposing side surfaces of a pair of adjacent vertical columns with bolts, and the load-bearing unit includes a pair of horizontal beams separated vertically and a shearing force interposed between the upper and lower horizontal beams. A bearing wall frame having a load member,
Of junction four locations where the bonding upper and lower pair of the ends and the pillars of the rungs in each of the bolt of the force-bearing unit, none of the above and below each rung, is the junction of one end vertically The bearing wall frame is joined by a bolt facing in a direction, and the joint at the other end is joined by a bolt facing in a longitudinal direction of the cross rail . 2. The bearing wall frame according to claim 1, wherein the joint portion of one of the upper and lower horizontal rails joined to any one of the columns is a bolt that faces in the vertical direction, and the other of the upper and lower horizontal sides. A load-bearing wall frame in which the joint portion of the crosspiece is joined with a bolt facing in the longitudinal direction. In the load-bearing wall frame according to claim 1 or claim 2 , among the joint portions, a joint portion that is joined by a bolt that faces the vertical direction, and a joint portion that is joined by a bolt that faces the longitudinal direction of the horizontal rail, A load-bearing wall frame with a bolted joint structure using two bolts each. 4. The load-bearing wall frame according to claim 1 , wherein the joint portion to be joined by the bolts facing in the up-down direction protrudes and is joined to a side surface of the pillar on the strength-bearing unit joining side. A structure in which a pair of upper and lower joint hardware respectively contacting the upper and lower surfaces of the horizontal rail and the horizontal rail upper and lower surface forming portions that respectively configure the upper and lower surfaces of the horizontal rail are penetrated by bolts facing in the vertical direction, The joining portion to be joined by the bolts facing the longitudinal direction of the crosspiece is formed by connecting the horizontal crosspiece over the joint metal protruding and joined to the side surface of the pillar on the strength unit joining side and the end plate provided on the crosspiece. A load-bearing wall frame that has a structure in which bolts facing the longitudinal direction of the material are penetrated. In shear wall frame according to any one of claims 1 to 4, wherein the shearing force bearing member of the force-bearing unit, the upper and lower lateral桟間in the longitudinal direction of the plurality of locations a plurality of joined respectively A load-bearing wall frame that is a vertical beam

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