JP2014066064A - Bearing wall frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bearing wall frame which can constitute a frame resisting horizontal force, give excellent seismic performance to a building, enables an opening to be provided at a region where the bearing wall is arranged, can be applied to even a case where width of column spacing is wide, and is easily adaptable to various dimensions and strength to be requested.SOLUTION: Both ends of a bearing unit 3 are joined to adjacent columns. The bearing unit 3 has: a pair of vertically separated horizontal muntins 4, 5; and shear force burdening members 6 interposed between the horizontal muntins 4, 5. The bearing unit 3 is constituted in a ladder shape constituted of:, for example, the horizontal muntins 4, 5; and a plurality of muntins 9 which are joined between the horizontal muntins 4, 5 and form the shear force burdening members 6. The bearing unit 3 and the columns are connected with bolts 20.

Description

  The present invention relates to a load-bearing wall frame applied to buildings such as steel frames.

  As a load-bearing wall frame used for a building, a ladder-shaped load-bearing wall frame comprising two 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.

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

A conventional ladder-shaped load-bearing wall frame is effective when it is narrow, but may not be effective when it is wide. In other words, the conventional ladder-shaped load-bearing wall frame has 0.5P (1P is 0. The load-bearing wall frame has a narrow width such as a width of about 8 to 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 joined 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 documents 1, and what joined the plate-shaped building fixture which has an opening part of patent documents 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.

The object of the present invention is to be able to construct a frame that resists horizontal force, to give the building excellent earthquake resistance, and to provide an opening in the part where the bearing wall is placed, and the width between the columns. The present invention is to provide a load-bearing wall frame that can be applied to a wide range and can easily meet various required dimensions and strengths, and a load-bearing unit used therefor.
Another object of the present invention is to replace only a part of members when damaged by a large earthquake or the like.

  The load-bearing wall frame of the present invention is formed by joining both ends of a load-bearing unit to a pair of adjacent columns, and the load-bearing unit includes a pair of horizontal beams separated vertically and a shear force interposed between the upper and lower horizontal beams. And a burden member.

According to this configuration, the horizontal force acting on the building due to an earthquake or the like is transmitted from the pillars on both sides to the upper and lower horizontal rails of the load bearing unit, but the horizontal force is applied by the shear force bearing member interposed between the upper and lower horizontal rails of the load bearing unit. A frame can be constructed that bears force and resists horizontal force. In addition, the stress is distributed throughout the load bearing wall frame composed of the shear force bearing member, the upper and lower horizontal rails, and the left and right pillars of the load bearing unit. Can give high seismic performance.
In addition, since the load bearing unit extends in the horizontal direction between the left and right columns, a wide opening extending between the left and right columns is provided, unlike the case where the load bearing unit is interposed along the vertical direction between the left and right columns. Since the stress is dispersed and supported as described above, the present invention can be applied even when the width between the left and right columns is wide.
Furthermore, since the load-bearing unit is composed of upper and lower horizontal rails and shearing force bearing members that connect them, the number of shearing force bearing members and the adjustment of the cross-sectional shape are different from those in which the load-bearing unit is composed of an integral member. By adjusting the lengths of the upper and lower horizontal rails which are simple shaped members, it is possible to easily cope with various required dimensions and strengths.
In this way, it is possible to construct a frame that resists horizontal force, it is possible to give the building excellent earthquake resistance, and an opening can be provided in the part where the bearing wall is arranged, and the width between the columns is wide. This is a load-bearing wall frame that can be applied to various cases and can easily cope with various required dimensions and strengths.

In the present invention, the strength unit may join both ends of the upper and lower horizontal rails to the column with bolts.
When the load bearing unit is bolted to the pillar, the load bearing unit is designed to be damaged before the rest of the building when subjected to a large horizontal load. It can be repaired simply by exchanging it, and the repair becomes easy.

In the present invention, a plurality of the load-bearing units may be provided side by side between the adjacent columns.
When a plurality of the load-bearing units are provided side by side, the stress is further dispersed, the plastic deformation ability is improved, and an even stronger frame can be configured.

In the load-bearing wall frame according to the present invention, the load-bearing unit includes a pair of horizontal bars that are vertically separated from each other, and a plurality of vertical bars that are joined to the horizontal bars at a plurality of positions in the longitudinal direction to serve as the shear force bearing members. It may be a ladder shape.
If the load-bearing unit is a ladder having a plurality of vertical beams, these multiple vertical beams share the shearing force, so that the stress is dispersed, the plastic deformation capacity is improved, and an even stronger frame is formed. Can be configured. Conventionally, the ladder-type load-bearing unit is only known as a vertical type that is connected between the upper and lower beams, but by using it in this way, a wide opening can be provided in the load-bearing wall. It is possible to obtain the effect of stress distribution, which is an advantage of the ladder shape, while being able to be applied even when the width between columns is wide.

In the load-bearing unit having a ladder shape as described above, a hole for reducing the yield strength may be provided in the vertical beam.
Providing a hole for reducing the yield strength in the vertical beam can prevent the vertical beam from being broken first and damaging other parts when a large horizontal force is applied, thereby facilitating the repair.

In the present invention, the pillar may be pin-joined to a beam of a building having a frame structure.
Even if this load-bearing wall frame is used for a building with a frame structure, it can be configured such that the horizontal force is supported by this load-bearing wall frame as described above. Therefore, it is not necessary to perform rigid connection like a ramen structure for the building to be applied, and the structure of the joint part of the column beam can be a simple structure of pin connection using a bolt or the like.

The strength unit of the present invention is a strength unit in which both ends are joined to adjacent pillars, and is joined to a pair of horizontal rails separated from each other in the vertical direction and a plurality of longitudinal bars between the upper and lower horizontal rails and sheared. It has a ladder shape composed of a plurality of vertical bars serving as force-bearing members, and has column joint portions that are joined to the pillars and fixtures at both ends of the horizontal bars. The “fixing device” may be a fastener such as a bolt or a nut, or may be a nail or a wood screw when used in a wooden building. In addition, the “column joint portion to be joined by a fixing tool” is a plate portion having a hole through which a shaft-like fixing tool such as a bolt or a nail is inserted.
According to the load-bearing unit of this configuration, the load-bearing wall frame of the present invention can be constructed by joining both ends to adjacent columns, and the above-described functions and effects can be obtained for the load-bearing wall frame of the present invention.

The load-bearing wall frame of the present invention is formed by joining both ends of a load-bearing unit to a pair of adjacent columns, and the load-bearing unit includes a pair of horizontal beams separated vertically and a shear force interposed between the upper and lower horizontal beams. Since it has a load member, it can be configured to resist horizontal force, provide excellent seismic performance to the building, and can be provided with an opening in the part where the bearing wall is placed, and between the columns It can also be applied when the width is wide, and can easily cope with various required dimensions and strengths.
In particular, the load-bearing unit has a ladder shape composed of a pair of horizontal bars that are separated from each other in the vertical direction and a plurality of vertical bars that are joined between the horizontal bars at a plurality of positions in the longitudinal direction and serve as the shear force bearing members. In this case, the stress is dispersed, the plastic deformation ability is improved, and a more rigid frame can be constructed.

  The load-bearing unit according to the present invention is a ladder formed by a pair of horizontal rails that are separated from each other in the vertical direction and a plurality of vertical rails that are respectively joined at a plurality of longitudinal positions between the upper and lower horizontal rails to serve as shear force bearing members. Yes, because it has column joints that join the pillars and fixtures at both ends of each horizontal rail, it is possible to construct a frame that resists horizontal force by joining both ends to adjacent columns, and it is excellent for buildings In addition, it can provide seismic performance, can be provided with openings in the parts where the bearing walls are placed, and can also be applied when the width between columns is wide. It becomes easy. Moreover, since it has the column | joint junction part joined with a column and a fixing tool, attachment or detachment to a column is easy, and a building can be easily repaired by replacing a strength unit at the time of damage.

It is a front view which shows schematic structure of the load-bearing wall frame which concerns on one Embodiment of this invention. It is a front view of an example of the load-bearing unit of the load-bearing wall frame. It is a front view of the modification of the same strength unit. It is a front view of the other modification of the same strength unit. It is a front view of the further another modification of the same strength unit. It is explanatory drawing of the process of construction, damage, and repair of the same bearing wall frame. It is a front view of the specific example of the same bearing wall frame. It is a front view of the load-bearing unit of the load-bearing wall frame. (A) is a diagram showing a combination of a partial front view, a partial rear view, and a partial plan view of the strength unit, and (B) is a diagram showing a combination of a partial cross-sectional view and a cross-sectional view showing different directions of the strength unit. It is. It is a partial expanded sectional view of the same strength unit. It is a partial exploded perspective view of the same strength unit. It is a front view of the other specific example of the same bearing wall frame. It is a front view of the example which installed the load-bearing wall frame of FIG. 3 and FIG. 12 side by side. It is the front view and schematic perspective view of the modification of the same bearing wall frame. It is a front view of each other modification of the load-bearing wall frame. It is a front view of each other modification of the load-bearing wall frame. (A), (B) is a front view of each other modification of the load-bearing wall frame. It is explanatory drawing of the example of an analysis of the same bearing wall frame. It is explanatory drawing of the other example of analysis of the same bearing wall frame.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an outline of a part of a building in which a load-bearing wall frame 1 according to this embodiment is installed. This load-bearing wall frame 1 is constructed by arranging a plurality of load-bearing units 3 between adjacent columns 2 and 2 in the height direction. The column 2 is a so-called shaft column that bears the strength of the building. 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 shear 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 steel. 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 each strength unit 3, both ends of the upper and lower horizontal rails 4 and 5 are joined to the column 2 by bolt joining.

  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 building has a frame structure in which steel columns 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, the horizontal force It will be a frame that bears the cost. 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.

  As shown in FIG. 2, for example, as shown in FIG. 2, the shear force bearing member 6 is a longitudinal beam 9 joined to a plurality of longitudinal beams between the upper and lower horizontal beams 4 and 5. It becomes a ladder shape. In addition to this, the shearing force bearing member 6 may be one shown in each example of FIGS. In addition, the hatching part shown in FIGS. 2-5 shows the bending moment which acts on each member.

  In the example of FIG. 3, the shearing force bearing member 6 is joined to the upper and lower horizontal rails 4 and 5, respectively, and the supporting members 10 and 11 facing each other, and the shearing force bearing main member joined between these supporting members 10 and 11. 6a. The shear force bearing main member 6a is an extremely low yield point steel panel or a perforated skin panel.

In the example of FIG. 4, the shear force bearing member 6 is arranged in an X shape between the upper and lower horizontal bars 4 and 5, and a pair of braces 12 and vertical bars 13 whose ends are joined to the horizontal bars 4 and 5. It consists of. The vertical rail 13 may be omitted and only the brace 12 may be used. When the brace 12 is provided as the shearing force bearing member 6, a certain amount of vibration energy can be absorbed by the bending moment generated in the cross beams 4 and 5 by the brace reaction force.
In the example of FIG. 5, the shear force bearing member 6 is joined to the upper and lower horizontal rails 4 and 5, respectively, and a pair of support members 14 facing each other in the wall thickness direction, and a viscoelastic material interposed between the support members 14. 15 viscoelastic damper. When the shear force bearing member 6 is a viscoelastic damper, an effect of absorbing vibration energy can be obtained.

  1 to 5, the horizontal force acting on the building due to an earthquake or the like is transmitted from the pillars 2 and 2 on both sides to the upper and lower horizontal beams 4 and 5 of the load bearing unit 3. The horizontal force is borne by the shear force bearing member 6 interposed between the upper and lower horizontal bars 4 and 5 of the load bearing unit 3, and a frame that resists the horizontal force can be configured. In addition, stress is dispersed throughout the load bearing wall frame 1 including the shear force bearing member 6 and the upper and lower horizontal rails 4 and 5 and the left and right pillars 2 and 2 of the load bearing unit 3, and has a high deformation capacity and a strong and strong frame. Can be configured. Therefore, it is possible to give excellent earthquake resistance performance to the building.

Since the strength unit 3 is provided extending in the horizontal direction between the left and right columns 2, 2, there is no member interposed along the vertical direction between the left and right columns 2, 2, and a wide opening is provided. Since the stress can be distributed and borne as described above, the present invention can be applied even if the width between the left and right columns 2 and 2 is wide.
Further, since the load bearing unit 3 is composed of the upper and lower horizontal rails 4 and 5 and the shearing force bearing member 6 connecting them, the shearing force bearing member 6 is different from the bearing member 3 composed of an integral member. By adjusting the number and cross-sectional shape, and adjusting the lengths of the upper and lower horizontal rails 4 and 5 that are simple members, it is possible to easily cope with various required dimensions and strengths.
Thus, according to the load-bearing wall frame 1, it is possible to construct a frame that resists horizontal force, to give the building excellent seismic performance, and to provide an opening in a portion where the load-bearing wall is disposed. Also, the present invention can be applied to a case where the width between the columns 2 and 2 is wide, and the load-bearing wall frame can be easily adapted to various required dimensions and strengths.

  Moreover, in this embodiment, since the strength unit 3 is made strong enough to be damaged earlier than other members when an excessive horizontal force or the like acts on the building, FIG. The damage and repair process shown in (C) can be taken. That is, in a building that was normal at the time of building construction (FIG. 6 (A)), when an excessive horizontal force is applied due to an earthquake or the like, the load bearing unit 3 has a shear force bearing member 6 as shown in FIG. The column 2 and the beams 7 and 8 are maintained in a healthy state. The load bearing unit 3 is attached to the columns 2 and 2 by bolt joining. Therefore, the earthquake resistance of the building can be easily maintained and maintained by replacing the damaged strength unit 3 with a new strength unit 3 as shown in FIG.

  7 to 11 show a first specific example of the load-bearing wall frame 1. Other than the matters to be specifically described, the configuration is the same as that described with reference to FIG. The load-bearing wall frame 1 includes three load-bearing units 3 arranged vertically between the left and right columns 2 and 2. Each of the three strength units 3 has the same configuration. Each load bearing unit 3 is provided with a plurality of (three in the illustrated example) vertical bars 9 as the shearing force bearing member 6 between the upper and lower horizontal bars 4 and 5. In addition, each arrow in a figure shows shear force.

  As shown in FIGS. 8 to 11, the upper and lower horizontal bars 4 and 5 are made of square steel pipes, and each vertical bar 9 is made of channel steel. As shown in FIG. 10 and the like, the vertical bars 9 are arranged so that the outer surface of the web is flush with the side surfaces of the horizontal bars 4 and 5, and the joining plate 15 is connected to the ends of the vertical bars 9 and the side surfaces of the horizontal bars 4 and 5. The vertical bars 9 and the horizontal bars 4 and 5 are joined to each other by joining them to the vertical bars 9 and the horizontal bars 4 and 5. As shown in FIG. 8, the vertical rail 9 is provided with a plurality of holes 16 for reducing the proof stress in a range where the joining plate 15 does not overlap.

  As shown in FIG. 8, a planar T-shaped column joint portion 17 comprising an end plate 17a and a vertical piece 17b protruding from the end plate 17a is provided at the end of the horizontal rails 4 and 5, and the vertical piece 17b. A bolt insertion hole 18 is provided in the front.

  As shown in FIG. 7, unit attachment pieces 19 for joining the ends of the cross rails 4, 5 of the load bearing unit 3 are attached to the pillars 2, 2 by welding or the like. The unit mounting piece 19 is made of a steel material having a T-shaped horizontal cross section, and a bolt insertion hole is provided in the protruding piece portion. The vertical piece 17b of the column joint portion 17 at the end of the horizontal beam 4 or 5 of the load bearing unit 3 is overlapped with the protruding piece portion of the unit mounting piece 19 and the bolt 20 is inserted through both the bolt insertion holes 18 to form a nut ( The load bearing unit 3 is bolted to the column 2 by tightening with a bolt (not shown).

  In the case of the load-bearing wall frame 1 having this configuration, the load-bearing unit 3 has a ladder shape having a plurality of vertical bars 9, so that the plurality of vertical bars 9 share the shearing force. As a result, the stress is dispersed, the plastic deformation capacity is improved, and an even stronger frame can be constructed. Conventionally, ladder-type load-bearing units are only known in the form of a vertical connection between upper and lower beams, but by using them in a horizontal shape in this way, the load-bearing wall can be connected between columns 2 and 2 on both sides. While having a wide opening (not shown) across the width and being able to be applied even when the width between the columns 2 and 2 is wide, the action of stress dispersion, which is an advantage of the ladder shape, can be obtained.

  Further, in this example, since the vertical beam 9 of the shear force bearing member 6 is weakened by the formation of the hole 16, when an excessive horizontal force is applied due to an earthquake or the like, as in the case described above with FIG. The crosspiece 9 breaks first, and the pillar 2 and the beams 7 and 8 can maintain a healthy state. Further, since the strength unit 3 is bolted to the column 3, it can be easily attached to and detached from the column 2. Therefore, as described above, recovery can be performed by exchanging the strength unit 3.

  Moreover, when the load bearing unit 3 as in this embodiment is a ladder shape, the length of the load bearing unit 3 naturally becomes longer when the width of the load bearing wall frame 1 is widened. The yield strength can be adjusted by selection.

FIG. 12 shows another specific example of the bearing wall frame 1. The load-bearing wall frame 1 of this specific example is wider than the load-bearing wall frame 1 of the specific example of FIG. The number of vertical rails 9 constituting the structure is increased and the arrangement interval is increased. Thus, even if the width of the load-bearing wall frame 1 is widened, the necessary yield strength can be maintained by increasing the number of the vertical bars 9 as described above.
In the case of the specific example of FIG. 12, since the width between the columns 2 and 2 is wide and the interval between the vertical rails 9 is wide, as shown in FIG. Large openings can be provided. In this way, the width of the opening forming space S can be adjusted. Other configurations are the same as the specific example shown in FIG.

  FIG. 13 shows an example in which the load-bearing wall frame 1 in the example of FIG. 7 and the wide load-bearing wall frame 1 in the example of FIG. 12 are installed side by side on the same outer wall surface in the same building. Thus, the same outer wall surface of a building can be provided side by side.

14 to 17 show various modifications of the load-bearing wall frame 1 having a ladder shape. These examples are the same as the examples described above with reference to FIG.
In the example of FIG. 14A, there are three strength units 3, and each strength unit 3 has two vertical bars 9 that serve as shear force bearing members 6. The width of the load bearing unit 3 is 1P width (P is a module, which is 910 mm in each embodiment). FIG. 14B is a schematic perspective view of the modified example, and there are three vertical rails 9.

  FIG. 15A shows an example in which the bearing wall frame 1 of the example of FIG. 14A is installed on the outer wall 30 and an opening 31 is provided. As shown in FIG. 5B, the number of load bearing units 3 may be two and the opening 31 may be widened.

In the example of FIG. 16, the width of the load-bearing unit 31 is 2P (1820 mm) or more, and the number of vertical bars 9 serving as the shear force bearing member 6 is four or more. Thus, even if the width of the bearing wall frame 1 is increased, the yield strength can be adjusted by the number of the vertical bars 9 and the cross-section of each member.
FIG. 17A shows an example in which the bearing wall frame 1 of the example of FIG. 16A is installed on the outer wall 30 and an opening 31 is provided. As shown in FIG. 5B, the number of load bearing units 3 may be two and the opening 31 may be widened. As shown in FIGS. 2A and 2B, the width of the load bearing unit 3 can be widened to widen the lateral width of the opening 31 at the portion serving as the load bearing wall.

18 and 19 show analysis examples of the load-bearing wall frames 1 each having a ladder shape. In the example of FIG. 18, the load-bearing wall frame 1 has three load-bearing units 3, and the number of vertical bars 9 of each load-bearing unit 3 is three as shown in the schematic diagram of FIG. The lateral width of the load-bearing wall frame 1 is 1P (= 910 mm) and the height is 2600 mm. The column 2 is a square steel pipe of 80 × 80 × 3.2 (unit is mm, and the units in the following examples are the same), the horizontal bars 4 and 5 are 60 × 40 × 4.5 square steel pipes, and the vertical bar 9 is 80 × 40 × 2.3 channel steel.
When a horizontal force V = 16.5 kN was applied to the upper end, the interlayer displacement was 12.7 mm, which was about 1/200.

In the example of FIG. 19, the load-bearing wall frame 1 has three load-bearing units 3, and the number of vertical bars 9 of each load-bearing unit 3 is four as shown in the schematic diagram of FIG. The lateral width of the load-bearing wall frame 1 is 2P (= 1820 mm) and the height is 2600 mm. The column 2 is an 80 × 80 × 3.2 square steel pipe, the upper beam 7 is a 250 × 100 × 4.5 H-section steel, the cross beams 4 and 5 are 60 × 40 × 4.5 square steel pipes, The vertical beam 9 is 80 × 40 × 2.3 channel steel.
When a horizontal force V = 16.5 kN was applied to the upper end, the interlayer displacement was 9.9 mm.

  Thus, even if the width of the load-bearing wall frame 1 is increased, the load-bearing capacity and deformation can be adjusted by the number of load-bearing units 3 and the number or cross section of the vertical bars 9 constituting the load-bearing unit 3. In addition, the bearing wall frame 1 of the figure has the same performance as a beam yielding type ramen structure.

The actions and effects of these embodiments are summarized and shown.
-An opening can be provided in a building while placing a load-bearing wall frame.
・ Full width opening of the building is also possible.
-A frame that resists horizontal force can be constructed at the same time as providing a large opening with a long span.
・ Stress is distributed to the pillar 2 and the proof stress unit 3, and a tenacious frame can be constructed.
-When the pillar 2 and the bolt are connected, continuous arrangement, T-shaped arrangement, etc. are possible.
-Continuous arrangement in the horizontal direction is also possible. In addition, the influence of the bending to a pillar is not different from the case of single arrangement.

DESCRIPTION OF SYMBOLS 1 ... Bearing wall frame 2 ... Pillar 3 ... Strength unit 4,5 ... Horizontal beam 6 ... Shear force bearing member 7,8 ... Beam 9 ... Vertical beam 6a ... Shear force bearing main member 12 ... Brace 13 ... Vertical beam 16 ... Strength Lowering hole 17 ... Pole joint 18 ... Bolt insertion hole 19 ... Unit mounting piece 20 ... Bolt

Claims (7)

  It is characterized in that both ends of the load bearing unit are joined to a pair of adjacent columns, and the load bearing unit has a pair of horizontal rails separated vertically and a shear force bearing member interposed between the upper and lower horizontal rails. And load bearing wall frame.   The load-bearing wall frame according to claim 1, wherein the load-bearing unit is formed by joining both ends of the upper and lower horizontal rails to the pillars with bolts.   The load-bearing wall frame of Claim 1 or Claim 2 WHEREIN: The load-bearing wall frame which provided the said load-bearing unit with two or more mutually arranged up and down between the said adjacent pillars.   The load-bearing wall frame according to any one of claims 1 to 3, wherein the load-bearing unit is joined to the pair of horizontal bars separated in the vertical direction at a plurality of positions in the longitudinal direction between the horizontal bars. A load-bearing wall frame having a ladder shape composed of a plurality of vertical bars serving as the shearing force bearing member.   The load-bearing wall frame of Claim 4 WHEREIN: The load-bearing wall frame which provided the hole for yield strength fall in the said vertical crosspiece.   The load-bearing wall frame according to any one of claims 1 to 5, wherein the pillar is pin-joined to a beam of a frame-structured building. It is a strength unit in which both ends are joined to adjacent pillars, and a plurality of transverse rails that are separated from each other in the vertical direction, and a plurality of longitudinal cross-joints between the upper and lower lateral rails to become shear force bearing members. A load-bearing unit having a ladder shape composed of vertical bars and having column joint portions that are joined to both ends of each horizontal beam by the columns and fixtures.

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