JP4003958B2 - Load-bearing wall construction method for non-bearing walls and structure of load-bearing walls - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a construction method for structurally reinforcing a non-bearing wall in an existing building part into a load-bearing wall at the time of extension and renovation work for a house or the like.
[0002]
[Prior art]
In extension and renovation work such as housing, the non-bearing wall used in the existing building part may be subjected to a load on the upper part due to the change in the structure of the house. It is necessary to use a bearing wall. FIG. 10 is a view showing an example of the non-bearing wall, and shows a state in which the outer wall panel 82 is removed from the shaft set 81 of the non-bearing wall 80 and the shaft set 81 is exposed to the outside of the door. As shown in the figure, the frame-shaped shaft set 81 includes a pair of left and right shaft columns 83 that are parallel to each other, a pair of upper and lower shaft bars 84 that are orthogonal to the shaft columns 83, and a longitudinal center portion of the shaft column 83. And an intermediate beam 85 provided in parallel with the shaft beam 84. As a means for making such a non-bearing wall 80 into a load-bearing wall, there is a method in which the non-bearing wall 80 is removed from the outer wall portion together with its shaft set 81 and replaced with a shaft set of an existing load-bearing wall (not shown).
[0003]
In addition, as another means for converting a non-bearing wall to a bearing wall, a method of forming a bearing wall by adding a bearing brace that connects corners formed by the shaft assembly to each other without removing the shaft assembly of the non-bearing wall. There is also. In this case, both ends of the load-bearing brace are joined to the corner by welding, or a brace mounting bracket is attached to the corner by bolting, and both ends of the load-bearing brace are fixed to the brace mounting bracket by bolting. Thus, a load-bearing brace is added (see Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2003-64807
[Problems to be solved by the invention]
However, in the method of removing the non-bearing wall 80 together with the shaft set 81 from the outer wall portion and replacing it with the shaft set of the existing load-bearing wall, the shaft set 81 of the non-bearing wall 80 is removed or the shaft set of the load-bearing wall is incorporated. There is a problem that a lot of time and labor are required for the work. Further, when the work of removing the shaft 81 of the non-bearing wall 80 is performed, the interior is re-executed by breaking the frame of the inner wall panel (not shown) or causing wrinkles on the cloth pasted on the inner wall panel. There is a problem that it may have to happen.
[0006]
Further, there is a problem that a large amount of non-bearing walls 80 removed together with the shaft set 81 are generated as industrial waste, and it takes a lot of cost to transport and process this.
[0007]
In addition, in the method of adding a load bearing brace to the shaft group of the non-bearing wall to form the load bearing wall, for example, if there is a middle beam inside the shaft group, the middle beam may be prevented from interfering with the middle beam. In order to add a load bearing brace without cutting, it is necessary to arrange the load bearing brace in two upper and lower stages. Furthermore, in the method of adding both ends of the load bearing brace to the corner of the shaft assembly by welding, there is a problem that the work cannot be performed unless it is a qualified person of welding. The reliability is low and there is a problem in the certainty of construction.
[0008]
In addition, in the method of using the brace mounting bracket to add a strength brace to the shaft assembly, in order to perform the work of mounting the brace mounting bracket by bolting to the corner portion, the shape of the brace mounting bracket is used. You can only work from the inside. Therefore, since it is necessary to perform the work by removing the inner wall panel, there is a problem that the interior may have to be redone, for example, a wrinkle is formed on the cloth pasted on the inner wall panel, as described above. .
[0009]
The present invention has been made in view of such problems, and in the case of extension work such as a house, a non-bearing wall of an existing building part is made into a bearing wall having sufficient strength without removing the entire shaft assembly. Therefore, it aims at providing the means which enables labor saving and reduction of industrial waste.
[0010]
[Means for Solving the Problems]
The present invention relates to a shaft column and a shaft beam arranged in a frame shape that forms a non-bearing wall in an existing building part, and a shaft beam substantially in the longitudinal center of the shaft column in the case of extension and renovation work of a house or the like. It is a load-bearing wall construction method of a non-bearing wall that incorporates a load-bearing brace into a shaft set that includes a middle beam provided in parallel, and both ends of the middle beam are separated from the shaft column. A cutting step for cutting, and a reinforcing intermediate beam for attaching a reinforcing intermediate beam having a notch formed in the central portion in the longitudinal direction to the central portion in the longitudinal direction of the axial column so that both ends thereof are substantially parallel to the axial beam. And a pair of the load-bearing braces crossing each other at the notch portion of the reinforcing middle beam, and both end portions thereof are formed at the corners formed by the shaft column and the shaft beam and at relative angular positions. A load-bearing brace mounting process that is fixed by a fixing tool, and the reinforcing middle beam The 桟補 strong member in for reinforcing closes the notch, is intended to include a reinforcing member mounting step for mounting while avoiding crossing of the load bearing brace.
[0011]
In addition, the present invention provides a shaft column and a shaft beam arranged in a frame shape that forms a non-bearing wall in an existing building part, and a shaft beam at a longitudinal center portion of the shaft column in the case of an extension or renovation work of a house or the like. A non-bearing wall bearing wall construction method in which a load bearing brace is incorporated into a shaft set including a middle rail provided substantially parallel to the shaft, and both ends of the middle rail are connected to the shaft. A cutting step for cutting out from the column, a reinforcing shaft column mounting step for mounting a reinforcing shaft column for reinforcing the shaft column along the shaft column, and a reinforcing intermediate beam formed with a notch in the longitudinal center portion A reinforcing intermediate beam attaching step for attaching both end portions of the reinforcing axial column to a longitudinal central portion of the reinforcing axial column so as to be substantially parallel to the axial rail, and a pair of the load-bearing braces at the notch portion of the reinforcing intermediate beam. The both ends of the shaft column and the shaft rail are A strength-bearing brace attaching step that is fixed to a corner portion that is formed at a relative angular position by a fixing tool, and a middle beam reinforcing member that closes and reinforces the notch portion of the reinforcing middle beam is formed at the intersection of the strength-bearing braces. And a reinforcing member attaching step for attaching while avoiding.
[0012]
Further, according to the present invention, there is provided a reinforcing middle beam in which a notch portion is formed in a central portion in the longitudinal direction on the inner side of the shaft column and the shaft beam arranged in a frame shape, and both end portions thereof are disposed in the longitudinal center portion of the shaft column. Are attached substantially parallel to the shaft rail, and a pair of load-bearing braces intersect each other at the cutout portion of the reinforcing middle rail, so that both ends of the shaft column and the shaft A middle beam reinforcing member is formed by a crosspiece, fixed to a corner portion at a relative angular position by a fixing tool, and closes and reinforces the notched portion of the reinforcing middle crossing while avoiding the intersection of the strength braces. It has been done.
[0013]
Further, according to the present invention, a reinforcing shaft column for reinforcing the shaft column is disposed along the shaft column on the inside of the shaft column and the shaft rail disposed in the frame shape, and is cut out at a central portion in the longitudinal direction. Reinforced intermediate beam formed with a portion is disposed substantially parallel to the axial beam by attaching both end portions thereof to the central portion in the longitudinal direction of the reinforcing shaft column, and a pair of load-bearing braces are provided on the reinforcing intermediate beam. The both ends of the cutout portion are fixed to a corner portion formed by the shaft column and the shaft rail at a relative angular position so as to intersect with each other. An intermediate beam reinforcing member for closing and reinforcing is disposed while avoiding the intersection of the strength braces.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a bearing wall construction method for a non-bearing wall according to the first embodiment of the present invention will be described with reference to the drawings. The load-bearing wall construction method of the non-bearing wall according to this embodiment is applied to the non-bearing wall 80 shown in FIG. FIG. 1 is a schematic front view showing a shaft set 101 of a load-bearing wall 100 according to the present embodiment, in which the outer wall panel 82 is removed from the shaft set 101 of the non-bearing wall 100 and the shaft set 101 is exposed to the outdoor side. Is shown. In the figure, the same components as those of the non-bearing wall 80 are denoted by the same reference numerals. As shown in the figure, the bearing wall 100 is provided in parallel with the pair of left and right shaft pillars 83 parallel to each other, the pair of upper and lower shaft bars 84 orthogonal to the shaft pillar 83, and the shaft bars 84. A proof brace 104 is incorporated in a shaft group 101 that includes the reinforcing middle beam 102 and a middle beam reinforcing member 103 that reinforces the middle reinforcing beam 102. Hereinafter, each component will be described in more detail.
[0015]
Although not shown in detail in the drawing, the pair of left and right shaft pillars 83 is a so-called C-shaped steel having a substantially U-shaped cross section disposed with its opening facing inward, and adjacent bearing walls 100 axial pillars 83 are fastened back to back with bolts. Further, the pair of upper and lower shaft bars 84 provided orthogonal to the shaft column 83 is a so-called C-shaped steel with its opening facing inward, like the shaft column 83. Both ends are fixed to the end of the shaft column 83 by welding.
[0016]
FIG. 2 is a schematic perspective view showing the configuration of the reinforcing middle beam 102. As shown in the figure, the reinforcing intermediate beam 102 has a bottom portion 106 provided with a bolt hole 105, and a first bent portion 107 and a second bent portion 108 orthogonal to the bottom portion 106, and has a substantially U-shaped longitudinal section. A notch 109 is formed at the center in the longitudinal direction from the first bent portion 107 to the bottom 106, and the notch 109 is formed when the load-bearing brace 104 is disposed. By letting it pass, the load-bearing brace 104 and the reinforcing middle beam 102 do not interfere with each other. The position where the notch 109 is formed in the reinforcing crosspiece 102 and the shape thereof are not limited to this embodiment, and the design can be changed as appropriate according to the position where the interference with the strength brace 104 occurs, the inclination angle of the strength brace 104, and the like. Although it is possible, it is preferable that the size of the reinforcing crosspiece 102 is set to a size that can suppress a decrease in strength.
[0017]
In addition, as shown in FIG. 2, attachment pieces 110 are provided at both ends in the longitudinal direction of the reinforcing middle beam 102. As shown in FIG. 1, the attachment piece 110 is for attaching both end portions of the reinforcing middle beam 102 to the shaft column 83, and is composed of a first piece 110a and a second piece 110b orthogonal to each other. It is a letter-shaped member. The attachment piece 110 is attached by joining the first section 110a to the bottom portion 106 of the reinforcing middle rail 102 by welding or the like. Further, a reinforcing member 110c is provided at a corner portion formed by the first section 110a and the second section 110b, and the mounting piece 110 is reinforced.
[0018]
The intermediate beam reinforcing member 103 is attached so as to close the notch 109 of the reinforcing intermediate beam 102, and reinforces the strength reduction of the reinforcing intermediate beam 102 due to the formation of the notch 109. FIG. 3 is a schematic perspective view showing the configuration of the middle beam reinforcing member 103. As shown in the figure, the middle beam reinforcing member 103 has a bottom portion 112 provided with a bolt hole 111 and a bent portion orthogonal to the bottom portion 112. An L-shaped member consisting of a portion 113, a notch 114 is formed in the longitudinal center of the bottom 112, and when the load bearing brace 104 is disposed, the notch 114 is passed through, The load-bearing brace 104 and the intermediate beam reinforcing member 103 do not interfere with each other. Further, the width dimension W2 and the height dimension H2 of the middle rail reinforcing member 103 are formed slightly smaller than the width dimension W1 and the height dimension H1 of the reinforcing middle rail 102, so that the middle rail reinforcing member 103 is reinforced. It is possible to arrange it in contact with the inner peripheral surface. On the other hand, the longitudinal dimension L2 of the intermediate beam reinforcing member 103 is not particularly limited, but when the intermediate beam reinforcing member 103 is disposed in the vicinity of the notch 109 of the reinforcing intermediate beam 102, the end portion thereof does not interfere with the mounting piece 110. There is a need.
[0019]
The load-bearing brace 104 reinforces the shaft set 101 by connecting corners formed by the shaft column 83 and the shaft bar 84 at relative angular positions. As shown in FIG. 1, the strength brace 104 includes two brace bodies 115 made of thin round bars and the like, and a turnbuckle for connecting the two brace bodies 115 to each other and adjusting the tension of the strength brace 104. 116 and brace fittings 117 that are fixed to opposite ends of the two brace bodies 115 by welding or the like and are used to attach the proof brace 104 to the corners of the shaft assembly 101. When attaching the load-bearing brace 104, first, the brace attaching bracket 117 is fixed to the corner by a fixing tool such as a bolt (not shown), and then the tension is adjusted by turning the turnbuckle 116.
[0020]
FIG. 4 is a schematic perspective view showing the configuration of the brace mounting bracket 117. As shown in the figure, the brace mounting bracket 117 includes a front plate 122, a rear plate 123, and a reinforcing member in which a notch 121 is formed in an L-shaped member 120 having a shaft column joint portion 118 and a shaft rail joint portion 119. The plate 124 is fixedly attached, and is attached to the corner portion of the shaft set 101 so that the front plate 122 faces the outdoor side. At the time of attaching the brace mounting bracket 117, the shaft column joint 118 and the shaft beam joint 119 are brought into contact with the shaft column 83 and the shaft beam 84, respectively, at the corner portion, and provided at the shaft column connection unit 118. The bolt hole 125 and the bolt hole 126 provided in the shaft crosspiece joint portion 119 are respectively fixed by a fixing tool such as a bolt (not shown). At this time, the operator can perform a fixing operation by inserting his / her hand from the notch 121 formed in the front plate 122 into the brace mounting bracket 117. As a result, it is possible to perform the work of attaching the brace mounting bracket 117 only from the outdoor side of the shaft assembly 101, and the work of removing an inner wall panel (not shown) provided on the indoor side of the shaft assembly 101 becomes unnecessary. It is possible to reduce the trouble of redoing the interior caused by the work.
[0021]
Hereinafter, the bearing wall construction method of the non-bearing wall according to the second embodiment of the present invention will be described with reference to the drawings. The load-bearing wall construction method of the non-bearing wall according to the present embodiment is applied to the non-bearing wall 80 shown in FIG. 10, and in particular, the shaft column 83 is made of a steel material having a predetermined thickness or less, and a seat. It is constructed when the yield strength is not sufficient. FIG. 5 is a schematic front view showing the shaft set 201 of the load-bearing wall 200 according to the present embodiment, in which the outer wall panel 82 is removed from the shaft set 201 of the non-bearing wall 200 and the shaft set 201 is exposed to the outdoor side. Is shown. As shown in the figure, the shaft set 201 according to the present embodiment is the first except that a reinforcing shaft column 202 for reinforcing the shaft column 83 is provided along the longitudinal direction of the shaft column 83. The structure is the same as that of the shaft set 101 of the bearing wall 100 according to the embodiment. In the figure, the same members as those of the shaft set 101 are denoted by the same reference numerals, and detailed description thereof is omitted here.
[0022]
The reinforcing shaft column 202 is attached along the shaft column 83 to reinforce the shaft column 83, and prevents the shaft column 83 from being easily buckled when the shaft column 83 is made of a steel material having a predetermined thickness or less. is there. FIG. 6 is a schematic perspective view showing the reinforcing shaft column 202. As shown in the drawing, the reinforcing shaft column 202 includes a bottom portion 204 provided with a bolt hole 203, and a first bent portion 205 orthogonal to the bottom portion 204. , And a second bent portion 206, the longitudinal section is a substantially hat-shaped member. The width dimension W3 of the bottom portion 204 of the reinforcing shaft column 202 is formed to be smaller than the width of the opening of the shaft column 83 which is C-shaped steel, and the reinforcing shaft column 202 can be attached inside the shaft column 83. .
[0023]
Hereinafter, the construction procedure of the non-bearing wall bearing wall construction method according to the present embodiment will be described. The load-bearing wall construction method of the non-bearing wall according to the present embodiment includes a cutting process, a reinforcing shaft column mounting process, a reinforcing intermediate beam mounting process, a load bearing brace mounting process, and a reinforcing member mounting process. is there. Hereinafter, each step will be described in more detail.
[0024]
In the cutting step, in the shaft set 81 of the non-bearing wall 80 shown in FIG. 10, the intermediate beam 85 is removed from the shaft set 81 by cutting off at the connecting portions with the shaft pillar 83 at both ends thereof. For example, a metal cutter (not shown) can be used as a tool used for cutting the intermediate rail 85.
[0025]
In the reinforcing shaft column attaching step, the reinforcing shaft column 202 is attached so as to be along the longitudinal direction of the shaft column 83. FIG. 7 is a view showing a state in which the reinforcing shaft column 202 is attached to the shaft column 83, and shows a cross section taken along the line AA in FIG. As shown in the figure, the bottom portion 204 of the reinforcing shaft column 202 is brought into contact with the web surface 83 a inside the shaft column 83, and then fixed with bolts 207 in the bolt holes 203 provided in the bottom portion 204. In the case of the first embodiment, that is, in the case where the reinforcing shaft column 202 is not provided, this step is omitted and the process proceeds to the next reinforcing beam mounting step.
[0026]
In the reinforcing middle beam attaching step, as shown in FIG. 5, both end portions of the reinforcing middle beam 102 are respectively attached to the longitudinal central portion of the reinforcing shaft column 202. FIG. 8 is an enlarged view of the position X in FIG. 5. As shown in FIG. 8, the second section 110 b of the mounting piece 110 provided at the end of the reinforcing middle beam 102 is connected to the bottom of the reinforcing shaft column 202. It abuts on 204 and is fixed by bolting. Further, although details are not shown in the drawing, in the case of the first embodiment, the second section 110b of the mounting piece 110 may be fixed in contact with the web surface 83a of the shaft column 83.
[0027]
In the load-bearing brace attaching step, the corners at the relative angular positions of the shaft set 201 are connected by the pair of load-bearing braces 104. To explain in more detail, as shown in FIG. 5, one brace mounting bracket 117 of the load-bearing brace 104 is arranged at a corner formed by the shaft column 83 and the shaft bar 84 and fixed with a fixing tool such as a bolt. To do. Further, after passing the brace body 115 through the notch 109 of the reinforcing middle beam 102, the other brace mounting bracket 117 is arranged at the corner at the diagonal position and fixed by bolting. Further, the corners at the other diagonal position are similarly connected by the load-bearing brace 104. At this time, the two strength braces 104 intersect each other at the notch 109 of the reinforcing middle beam 102. Finally, the turnbuckle 116 is turned to adjust the tension of the strength brace 104 as appropriate.
[0028]
In the middle beam reinforcing member attaching step, the middle beam reinforcing member 103 is attached such that the bent portion 113 of the middle beam reinforcing member 103 closes the notch 109 of the first bent portion 107 of the reinforcing middle beam 102. FIG. 9 is a view showing a state in which the middle rail reinforcing member 103 is attached, and shows a cross section taken along the line B-B in FIG. 5. As shown in the figure, the bottom portion 112 and the bent portion 113 of the middle beam reinforcing member 103 are brought into contact with the bottom portion 106 and the first bent portion 107 of the reinforcing middle beam 102, respectively, so that the bolt holes in the bottom portion 112 of the middle beam reinforcing member 103 are brought into contact with each other. 111 is aligned with the bolt hole 105 in the bottom 106 of the reinforcing middle beam 102 and then fixed with the bolt 207. At this time, since the notch 114 is formed in the center portion in the longitudinal direction of the middle beam reinforcing member 103, the middle beam reinforcing member 103 and the strength brace 104 do not interfere with each other.
[0029]
Moreover, the load-bearing wall construction method of the non-bearing wall and the structure of the load-bearing wall according to the present invention can be employed not only at the time of extension of a house or the like but also at the time of new construction.
[0030]
【The invention's effect】
As described above, the load-bearing wall construction method of the non-bearing wall according to claim 1 is a shaft column and a shaft arranged in a frame shape that forms the non-bearing wall in the existing building part in the case of extension and renovation work of a house or the like. A bearing wall of a non-bearing wall that incorporates a bearing brace into a shaft set including a crosspiece and a middle crosspiece provided substantially parallel to the axial crosspiece in the longitudinal center of the shaft post. A cutting method in which both end portions of the middle beam are cut from the shaft column, and a reinforcing middle beam in which a notch is formed at a central portion in the longitudinal direction is formed so as to be substantially parallel to the shaft beam. Reinforcing middle beam attaching step for attaching both ends to the longitudinal center of the shaft column, and a pair of the load-bearing braces crossing each other at the notch of the reinforcing middle beam, Fixing tool at the corner formed by the shaft column and the shaft bar at the relative angular position Since it includes a strength-bearing brace attaching step for fixing more and a reinforcing member attaching step for attaching a middle rail reinforcing member for closing and reinforcing the notched portion of the reinforcing middle beam while avoiding an intersection of the strength-bearing braces, It is possible to reduce the labor of removing or newly installing the entire shaft assembly, and it is not necessary to perform the interior rework work that occurs when the shaft assembly is removed, thereby saving labor.
[0031]
Moreover, according to this invention, compared with the case where a non-bearing wall is removed with a shaft set, the amount of industrial waste generated can be greatly reduced, and the cost required for its transportation and processing can be reduced.
[0032]
Further, according to the present invention, since the brace welding work is not required, it is possible for a general worker who is not a qualified person for welding to easily perform the work and to improve the certainty of the work.
[0033]
In addition, according to the present invention, a part of an existing shaft group is cut out, and a new member having a notch portion for avoiding interference with the load-bearing brace is disposed, so that the shaft group interferes with the shaft group. Without having to do so, it is possible to dispose one load-bearing brace. As a result, the buckling strength of the shaft column can be improved as the yield angle of the load-bearing brace is reduced because the inclination angle of the load-bearing brace is smaller and the yield load of the load-bearing brace is lower than when two steps of load-bearing braces are arranged.
[0034]
In addition, according to the present invention, it is possible to perform the work of installing the load-bearing brace only from the outside of the shaft assembly, so that the work of removing the inner wall panel is not required, and the work of redoing the interior caused by the work is eliminated. Can be reduced.
[0035]
In addition, the load-bearing wall construction method of the non-bearing wall according to claim 2 includes a shaft column and a shaft rail arranged in a frame shape that forms a non-bearing wall in an existing building part during extension and renovation work of a house, etc. This is a load-bearing wall construction method for a non-bearing wall in which a load-bearing brace is incorporated into a shaft set including an intermediate beam provided substantially parallel to the shaft beam at the longitudinal center of the shaft column. A cutting step for cutting both ends of the middle rail from the shaft column, a reinforcing shaft column mounting step for mounting a reinforcing shaft column for reinforcing the shaft column along the shaft column, and a central portion in the longitudinal direction. A reinforcing intermediate beam mounting step for attaching both ends of the reinforcing intermediate beam formed with notches to the longitudinal center of the reinforcing axial column so as to be substantially parallel to the axial beam, and a pair of the load-bearing braces, Each of the both ends so as to cross each other at the notch of the reinforcing middle beam. Strength-bearing brace mounting step for fixing a portion to a corner portion formed by the shaft column and the shaft rail at a relative angular position with a fixing tool, and reinforcing the middle rail to reinforce by closing the notch portion of the reinforcing middle rail In addition to the effect of the non-bearing wall load-bearing method, the buckling strength of the shaft column is further increased. Can be improved.
[0036]
Further, the structure of the load bearing wall according to claim 3 is a reinforcing middle beam having a notch portion formed in a central portion in the longitudinal direction inside the shaft column and the shaft beam arranged in a frame shape. By attaching to the central part in the longitudinal direction of the shaft column, it is arranged substantially parallel to the shaft beam, and a pair of load-bearing braces intersect each other at the notch portion of the reinforcing middle beam, so that both end portions are The intermediate beam reinforcing member is formed by the shaft column and the shaft beam and fixed to a corner portion at a relative angular position by a fixture, and the middle beam reinforcing member for closing and reinforcing the notch portion of the reinforcing middle beam is formed of the load-bearing brace. Since it is arranged while avoiding the intersection, the same effect as the load-bearing wall construction method of the non-bearing wall according to claim 1 can be obtained.
[0037]
Further, the structure of the load bearing wall according to claim 4 is provided such that a reinforcing shaft column for reinforcing the shaft column is disposed along the shaft column inside the shaft column and the shaft rail disposed in a frame shape. A pair of load-bearing braces, wherein a reinforcing intermediate beam having a notch formed in the central portion in the longitudinal direction is disposed substantially parallel to the shaft rail by attaching both ends thereof to the central portion in the longitudinal direction of the reinforcing shaft column. However, the both ends of the reinforcing middle beam are fixed to a corner portion formed by the shaft column and the shaft beam at a relative angular position by a fixing tool so as to cross each other at the notch portion of the reinforcing middle beam. 2. The method of building a non-bearing wall as a load-bearing wall according to claim 1, wherein the middle beam reinforcing member for closing and reinforcing the notch portion of the middle beam is disposed while avoiding the intersection of the load-bearing braces. In addition to the above effect, the same as the load-bearing wall construction method of the non-bearing wall according to claim 2 Effect can be obtained.
[Brief description of the drawings]
FIG. 1 is a schematic front view showing a shaft set 101 of a load bearing wall 100 according to a first embodiment of the present invention.
FIG. 2 is a schematic perspective view showing a configuration of a reinforcing middle rail 102 according to the embodiment of the present invention.
FIG. 3 is a schematic perspective view showing a configuration of an intermediate beam reinforcing member 103 according to the embodiment of the present invention.
FIG. 4 is a schematic perspective view showing a configuration of a brace mounting bracket 117 according to an embodiment of the present invention.
FIG. 5 is a schematic front view showing a shaft set 201 of a load bearing wall 200 according to a second embodiment of the present invention.
FIG. 6 is a schematic perspective view showing a reinforcing shaft column 202 according to a second embodiment of the present invention.
7 is a schematic cross-sectional view showing a cross section AA in FIG. 5;
8 is a partially enlarged view in which the position X in FIG. 5 is enlarged.
9 is a schematic cross-sectional view showing a BB cross section in FIG. 5. FIG.
10 is a schematic front view showing a shaft set 81 of a non-bearing wall 80. FIG.
[Explanation of symbols]
80 Non-bearing wall 81, 101, 201 Shaft group 83 Shaft column 84 Shaft 85 Middle rail 100, 200 Bearing wall 102 Reinforced middle rail 103 Middle rail reinforcing member 104 Strength brace 109, 114 Notch 202 Reinforced shaft column

Claims (4)

For extension and renovation work of houses, etc., provided in a frame shape that forms a non-bearing wall in the existing building part, and provided in a longitudinally central portion of the shaft pillar substantially parallel to the shaft pole A non-bearing wall load-bearing method that incorporates a load-bearing brace into a shaft assembly that includes the intermediate beam formed,
Excision step of excising both ends of the middle rail from the shaft column;
Reinforcing middle beam attaching step for attaching both ends of the reinforcing middle beam, in which a notch portion is formed in the central portion in the longitudinal direction, to the longitudinal center portion of the shaft column so as to be substantially parallel to the shaft beam,
A pair of the load-bearing braces cross each other at the notch portion of the reinforcing middle beam, and both ends thereof are fixed to corner portions formed by the shaft column and the shaft beam and at relative angular positions. The load-bearing brace mounting process to fix,
A non-bearing wall bearing wall characterized in that it includes a reinforcing member attaching step for attaching an intermediate beam reinforcing member for closing and reinforcing the notch portion of the reinforcing intermediate beam while avoiding an intersection of the strength braces. Law. For extension and renovation work of houses, etc., provided in a frame shape that forms a non-bearing wall in the existing building part, and provided in a longitudinally central portion of the shaft pillar substantially parallel to the shaft pole A non-bearing wall load-bearing method that incorporates a load-bearing brace into a shaft assembly that includes the intermediate beam formed,
Excision step of excising both ends of the middle rail from the shaft column;
A reinforcing shaft column attaching step for attaching a reinforcing shaft column for reinforcing the shaft column along the shaft column,
Reinforcing middle beam attaching step for attaching both ends of the reinforcing middle beam, in which a notch portion is formed in the central portion in the longitudinal direction, to the longitudinal center portion of the reinforcing shaft column so as to be substantially parallel to the shaft beam,
A pair of the load-bearing braces cross each other at the notch portion of the reinforcing middle beam, and both ends thereof are fixed to corner portions formed by the shaft column and the shaft beam and at relative angular positions. The load-bearing brace mounting process to fix,
A non-bearing wall bearing wall characterized in that it includes a reinforcing member attaching step for attaching a middle beam reinforcing member for closing and reinforcing the notch portion of the reinforcing middle beam while avoiding an intersection of the strength braces. Law. Reinforced middle rails having notches formed in the longitudinal center portion inside the shaft columns and shaft rails arranged in a frame shape are attached to the shaft pillars by attaching both ends thereof to the longitudinal center portion of the shaft pillars. A pair of load-bearing braces are arranged substantially parallel to the crosspieces so that they intersect each other at the notch portion of the reinforcing intermediate crosspiece, and both end portions are formed by the shaft column and the shaft crosspiece and are at relative angles. A middle beam reinforcing member, which is fixed to a corner portion at a position by a fixture and closes and reinforces the cutout portion of the reinforcing middle beam, is disposed while avoiding an intersection of the strength braces. The structure of the load bearing wall. Reinforcement in which a reinforcing axial column for reinforcing the axial column is arranged along the axial column inside the axial column and the axial rail disposed in a frame shape, and a notch is formed in the longitudinal center portion An intermediate beam is disposed substantially in parallel with the axial beam by attaching both end portions thereof to the central portion in the longitudinal direction of the reinforcing shaft column, and a pair of load-bearing braces intersect each other at the notch portion of the reinforcing intermediate beam. Thus, both end portions are formed by the shaft column and the shaft rail and fixed to corner portions at relative angular positions by a fixing tool, and the notch portion of the reinforcing middle rail is closed and reinforced. A structure of a load-bearing wall, wherein an intermediate beam reinforcing member is disposed while avoiding an intersection of the load-bearing braces.

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