JP2004324134A - Method for changing non-bearing wall into bearing wall and structure of bearing wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide methods for saving labor and reducing industrial waste by changing a non-bearing wall of an existing building part into a bearing wall with sufficient strength without removing the non-bearing wall together with the framework in the extension construction of dwelling houses. <P>SOLUTION: This method for changing the non-bearing wall into the bearing wall comprises a cutting step for cutting the existing intermediate columns and rails of the framework having shaft columns and shaft rails disposed in a frame shape, existing intermediate rails, and intermediate columns, a new intermediate rail mounting step for disposing the new intermediate rails having cutout parts formed therein, a new intermediate column mounting step for connecting both end parts of the new intermediate columns having the cutout parts formed therein to the new intermediate rails, a bearing brace mounting step allowing the bearing braces to pass the cutout parts of the new intermediate rails therein and fixing both end parts thereof to the corner parts of the framework with a fixing tool, and a reinforcement member mounting step for disposing the reinforcement intermediate columns and rails for reinforcing the new intermediate columns and rails. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for structurally reinforcing a non-bearing wall in an existing building part to be a bearing wall when adding or renovating a house or the like.
[0002]
[Prior art]
In the extension and remodeling work of houses, etc., due to changes in the structure of the house, non-bearing walls used in the existing building part may receive a load on the upper part, in this case, the non-bearing walls It must be a load bearing wall. FIG. 14 is a diagram showing an example of the non-bearing wall, showing a state in which the outer wall panel 82 is removed from the frame 81 of the non-bearing wall 80 and the frame 81 is exposed to the outside. As shown in the figure, the frame-shaped shaft set 81 includes a pair of left and right shaft columns 83 parallel to each other, a pair of upper and lower shaft bars 84 orthogonal to the shaft columns 83, and a central portion in the longitudinal direction of the shaft columns 83. The shaft bar 84 is provided with a middle bar 85 provided in parallel with the shaft bar 84 and a center column 86 provided in the center of the shaft bar 84 in the longitudinal direction in parallel with the shaft column 83. As a means for converting the non-bearing wall 81 into a bearing wall, there is a method in which the non-bearing wall 80 is removed from the outer wall together with the shaft set 81, and is replaced with a non-illustrated existing bearing wall set.
[0003]
Another method for making the non-bearing wall a bearing wall is to remove the frame of the non-bearing wall and to add a bearing brace connecting the corners formed by the frame to each other without removing the frame. 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. (See Patent Document 1).
[0004]
[Patent Document 1]
JP 2003-64807 A
[0005]
[Problems to be solved by the invention]
However, in the method of removing the non-bearing wall 80 together with the frame 81 from the outer wall portion and replacing it with the existing frame of the bearing wall, the frame 81 of the non-bearing wall 80 is removed or the shaft of the bearing wall is incorporated. There is a problem that a great deal of time and labor is required for the work. Further, when the work of removing the frame 81 of the non-bearing wall 80 is performed, the interior must be redone due to breakage of an inner wall frame (not shown) or wrinkling of a cloth stuck to the inner wall material. There is a problem that occurs.
[0006]
In addition, there is also a problem that the non-bearing wall 80 removed together with the frame 81 is generated as a large amount of industrial waste, and it takes a lot of cost to transport and treat the waste.
[0007]
In addition, in the method in which a load-bearing brace is added to a non-bearing wall frame to provide a load-bearing wall, for example, when there is a middle crosspiece inside the frame, the reinforcing crosspiece is prevented from interfering with the reinforcing crosspiece. In order to add a load-bearing brace without cutting the middle crosspiece, the load-bearing brace needs to be arranged in two upper and lower stages. Furthermore, the method of adding both ends of the load-bearing brace to the corners of the frame by welding has a problem that work cannot be performed unless the person is qualified to perform welding. The reliability is low and there is a problem in the reliability of construction.
[0008]
In addition, in the method of using the brace mounting bracket to add the load-bearing brace to the frame, the work of mounting the brace mounting bracket to the corner portion by bolting requires the shape of the brace mounting bracket, You can only work from inside. For this reason, since it is necessary to remove the inner wall panel and perform the work, there is a problem that the interior must be redone, for example, as in the case described above, such that the cloth attached to the inner wall panel is wrinkled. .
[0009]
The present invention has been made in view of such a problem, and when expanding a house or the like, a non-bearing wall of an existing building section is to be a bearing wall having sufficient strength without removing the entire frame. Accordingly, it is an object of the present invention to provide means capable of saving labor and reducing industrial waste.
[0010]
[Means for Solving the Problems]
The present invention relates to an extension and remodeling work of a house or the like, a shaft pillar and a shaft bar arranged in a frame shape forming a non-bearing wall in an existing building part, and the shaft bar substantially at the center in the longitudinal direction of the shaft column. A shaft brace provided in parallel, and a shaft set including a center pillar provided substantially in parallel with the shaft pillar in a longitudinal center portion of the shaft rail, incorporating a bearing brace and a bearing wall. A method of forming a non-bearing wall having a load-bearing wall, in which a middle portion in the longitudinal direction of the middle pillar is cut off to divide the middle pillar into an upper middle pillar and a lower middle pillar, and both ends of the middle pillar are cut away from the shaft pillar. The cutting step and two reinforcing middle bars each having a pair of left and right notches formed at positions substantially symmetrical with respect to the center in the longitudinal direction, attaching both ends of the crosspiece to the shaft pillar, and attaching the central portions in the longitudinal direction respectively. By attaching to the lower end of the upper middle pillar, and the upper end of the lower middle pillar A step of attaching a reinforcing middle rail provided in two steps vertically substantially parallel to the shaft crosspiece, and a reinforcing middle pillar having a cutout formed at a central portion in a longitudinal direction, and having both ends thereof substantially parallel to the shaft pillar. A reinforcing middle pillar mounting step of attaching the reinforcing middle pillar to a longitudinal center portion thereof, and a pair of the load-bearing braces, passing through the notches of the upper and lower reinforcing middle pillars, and Attachment brace mounting step of intersecting each other in the notch portion and fixing each end portion to a corner formed by the shaft post and the shaft bar at a relative angular position with a fixing tool, A reinforcing member attaching step of attaching the notch portion and the middle beam reinforcing member for closing and reinforcing the notch portion of the reinforcing middle pillar, and attaching the middle pillar reinforcing member while avoiding the bearing braces.
[0011]
In addition, the present invention relates to a shaft pillar and a shaft bar arranged in a frame shape forming a non-bearing wall in an existing building part at the time of extension or remodeling work of a house or the like, and the shaft bar in a longitudinal central portion of the shaft pillar. A bearing brace is incorporated into a shaft set including a middle crosspiece provided substantially in parallel with the middle crosspiece and a middle pillar provided substantially in parallel with the shaft post in a longitudinal center portion of the shaft crosspiece. A method of forming a non-bearing wall as a wall, comprising cutting off a middle portion in the longitudinal direction of the middle pillar to divide the middle pillar into an upper middle pillar and a lower middle pillar, and separating both ends of the middle pillar from the axial pillar. A cutting step for cutting, a reinforcing shaft mounting step for mounting a reinforcing shaft for reinforcing the shaft along the shaft, and a pair of left and right cutouts at substantially symmetric positions with respect to a longitudinal center. Attach both ends of the two formed reinforcing bars to the reinforcing shaft columns, and Attaching a middle part in the direction to the lower end part of the upper middle pillar and an upper end part of the lower middle pillar, respectively, thereby providing a reinforcing middle girder mounting step of providing two upper and lower stages substantially in parallel with the shaft girder; A reinforcing pillar having a notch formed therein, and a reinforcing pillar mounting step of attaching both ends thereof to the longitudinal center portions of the upper and lower reinforcing bars so as to be substantially parallel to the axial pillar, and a pair of the reinforcing pillars. The load-bearing braces pass through the notches of the upper and lower reinforcing middle bars, and cross each other at the notch portions of the reinforcing middle pillars. A bearing brace mounting step for fixing to a corner portion formed and located at a relative angular position by a fixing tool, and a middle beam reinforcing member for closing and reinforcing the notch portion of the reinforcing beam and the notch portion of the reinforcing beam. , And middle pillar reinforcement It is intended to include a reinforcing member mounting step of mounting each while avoiding the strength brace.
[0012]
In addition, the present invention is characterized in that, inside the shaft pillar and the shaft bar arranged in a frame shape, a middle pillar disposed substantially in parallel with the shaft pillar at the center in the longitudinal direction of the shaft bar, in the longitudinal direction. An intermediate portion is cut off to be divided into an upper middle pillar and a lower middle pillar, and a reinforcing middle cross bar in which a pair of left and right cutouts are formed at positions substantially symmetric with respect to the center in the longitudinal direction, the both ends of which are the shafts. Attached to the pillar, the central part in the longitudinal direction is attached to the lower end of the upper middle pillar and the upper end of the lower middle pillar, respectively. A reinforcing pillar having a notch formed in the center is disposed substantially parallel to the axial pillar by attaching both ends thereof to the longitudinal center of the upper and lower reinforcing bars, and a pair of bearing braces is provided. Pass through the notches of the upper and lower reinforcing bars, and In the notch portion, both ends are fixed to a corner portion formed by the shaft post and the shaft bar at a relative angular position by a fixing tool so as to cross each other, and the notch portion of the reinforcing middle bar, And a middle crosspiece reinforcing member and a middle pillar reinforcing member for closing and reinforcing the cutout portion of the reinforcing middle pillar, respectively, are arranged so as to avoid the bearing braces.
[0013]
In addition, the present invention is characterized in that, inside the shaft pillar and the shaft bar arranged in a frame shape, a middle pillar disposed substantially in parallel with the shaft pillar at the center in the longitudinal direction of the shaft bar, in the longitudinal direction. The middle part is cut off to be divided into an upper middle pillar and a lower middle pillar, and a reinforcing pillar for reinforcing the pillar is disposed along the pillar, and is substantially symmetric with respect to the longitudinal center. A reinforcing middle bar having a pair of left and right cutouts formed at the positions, both ends of which are attached to the reinforcing pillar, and a longitudinal center portion is a lower end of the upper middle pillar and an upper end of the lower middle pillar, respectively. By being attached to the shaft bar, the reinforcing middle pillar, which is disposed substantially vertically in two stages in a vertical direction and has a cutout at the center in the longitudinal direction, has both ends thereof in the longitudinal direction of the reinforcing middle bar above and below. By being attached to the central portion, it is disposed substantially parallel to the shaft post, and a pair of Pass through the notch portions of the upper and lower reinforcing crosspieces, and cross each other at the notch portions of the reinforcing middle post, so that both ends are formed by the shaft post and the shaft crosspiece, respectively. A middle beam reinforcing member fixed to a corner located at a relative angular position by a fixing tool, and a notch portion of the reinforcing beam, and a middle beam reinforcing member for closing and reinforcing the notch portion of the reinforcing beam, and a middle beam reinforcing member are provided. , Each of which is disposed so as to avoid the bearing braces.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a method of forming a non-bearing wall according to a first embodiment of the present invention will be described with reference to the drawings. The non-bearing wall forming method according to the present embodiment is applied to the non-bearing wall 80 shown in FIG. FIG. 1 is a schematic front view showing the frame 101 of the load-bearing wall 100 according to the present embodiment, in which the outer wall panel 82 is removed from the frame 101 of the non-bearing wall 100 and the frame 101 is exposed to the outside. Is shown. In FIG. 1, the same components as those of the non-bearing wall 80 are denoted by the same reference numerals. As shown in the figure, the load-bearing wall 100 includes a pair of left and right shaft pillars 83 parallel to each other, a pair of upper and lower shaft bars 84 perpendicular to the shaft pillar 83, and a longitudinal middle part of the middle pillar 86. The upper middle pillar 102 and the lower middle pillar 103 separated by being cut off, a reinforcing middle rail 104 provided in parallel with the shaft bar 84, and a middle rail reinforcing member 105 for reinforcing the reinforcing middle rail 104 The bearing brace 108 is incorporated in a shaft set 101 including a reinforcing middle pillar 106 provided in parallel with the shaft pillar 83, and a middle pillar reinforcing member 107 for reinforcing the reinforcing middle pillar 106. is there. Hereinafter, each component will be described in more detail.
[0015]
Although not shown in detail in the figure, the pair of left and right shaft pillars 83 is a so-called C-shaped steel having a substantially U-shaped cross section, with its opening facing inward. 100 shaft pillars 83 are fastened with bolts back to back. Further, the pair of upper and lower shaft bars 84 provided orthogonally to the shaft column 83 are formed by so-called C-shaped steel with the opening thereof facing inward, similarly to the shaft column 83. Both ends are fixed to the ends of the shaft column 83 by welding, respectively.
[0016]
The upper middle pillar 102 and the lower middle pillar 103 are left by being cut off by cutting off the longitudinal middle part of the middle pillar 86 in the frame 81 shown in FIG. Although not shown in detail in the drawings, the upper middle pillar 102 and the lower middle pillar 103 are formed by fixing two U-shaped steel members by welding so that their openings face outward.
[0017]
FIG. 2 is a schematic perspective view showing the configuration of the reinforcing bar 104. As shown in the drawing, the reinforcing cross bar 104 has a bottom section 110 provided with a bolt hole 109, and a first bent section 111 and a second bent section 112 orthogonal to the bottom section 110. A pair of left and right cutouts 113 are formed from the first bent portion 111 to the bottom 110 at substantially symmetric positions with respect to the longitudinal center of the mold member. Thus, when the bearing brace 108 is provided, the bearing brace 108 and the reinforcing bar 104 do not interfere with each other by passing through the notch 113. The position where the notch 113 is formed in the reinforcing crosspiece 104 and the shape thereof are not limited to the present embodiment, and the design may be appropriately changed according to the position where interference with the load-bearing brace 108 occurs, the inclination angle of the load-bearing brace 108, and the like. Although it is possible, it is preferable that the size be such that the reduction in strength of the crosspiece 104 during reinforcement is minimized.
[0018]
Further, as shown in FIG. 2, mounting pieces 114 are provided at both ends in the longitudinal direction of the reinforcing crosspiece 104, respectively. As shown in FIG. 1, the attachment piece 114 is for attaching both ends of the reinforcing bar 104 to the shaft pillar 83, and is an L-shape comprising a first piece 114a and a second piece 114b orthogonal to each other. It is a member of. The mounting piece 114 is mounted by joining the first piece 114a to the bottom 110 of the reinforcing bar 104 by welding or the like. Further, a reinforcing member 104c is provided at a corner formed by the first piece 114a and the second piece 114b, and the mounting piece 114 is reinforced.
[0019]
The middle crosspiece reinforcing member 105 is attached so as to close the notch 113 of the middle crosspiece 104, and serves to reinforce the strength reduction of the middle crosspiece 104 due to the formation of the notch 113. FIG. 3 is a schematic perspective view showing the configuration of the middle crosspiece reinforcing member 105. As shown in the drawing, the middle crosspiece reinforcing member 105 has a bottom portion 116 provided with a bolt hole 115 and a bent portion orthogonal to the bottom portion 116. An L-shaped member made up of a portion 117, a notch 118 is formed in the middle portion in the longitudinal direction of the bottom portion 116, and by passing the notch 118 when the bearing brace 108 is provided, The bearing brace 108 and the middle beam reinforcing member 105 do not interfere with each other. The width dimension W2 and the height dimension H2 of the middle crosspiece reinforcing member 105 are formed to be slightly smaller than the width dimension W1 and the height dimension H1 of the middle crosspiece reinforcing member 104. Can be disposed so as to be in contact with the inner peripheral surface of the. On the other hand, the longitudinal dimension L2 of the middle crosspiece reinforcing member 105 is not particularly limited, but when disposed near the notch 113 of the middle crosspiece reinforcement 104, the end thereof does not interfere with the mounting piece 114. There is a need.
[0020]
FIG. 4 is a schematic perspective view showing the configuration of the reinforcing middle pillar 106. As shown in the figure, the reinforcing middle pillar 106 is formed by joining two U-shaped members 119 having a substantially U-shaped vertical section through a plate 120, and The member 119 includes a bottom 122 provided with a bolt hole 121, and a first bent portion 123 and a second bent portion 124 orthogonal to the bottom 122. A notch 125 is formed in the center of the two U-shaped members 119 in the longitudinal direction from the first bent portion 123 to the bottom 122, and the notch 125 is provided when the bearing brace 108 is provided. By passing through the portion 125, the load-bearing brace 108 and the reinforcing middle pillar 106 do not interfere with each other. The position at which the notch 125 is formed and the shape thereof are not limited to the present embodiment, and the design can be appropriately changed according to the position where interference with the load-bearing brace 108 occurs, the inclination angle of the load-bearing brace 108, and the like. It is preferable that the size of the reinforcing middle pillar 106 be set to a value that minimizes a decrease in strength.
[0021]
As shown in FIG. 4, mounting pieces 126 are provided at both ends in the longitudinal direction of the two U-shaped members 119 constituting the reinforcing middle pillar 106. As shown in FIG. 1, the attachment pieces 126 are for attaching both ends of the middle reinforcing column 106 to the middle reinforcing bar 104, respectively, and include a first section 126a and a second section 126b orthogonal to each other. It is an L-shaped member. The mounting piece 126 is mounted by joining the first piece 126a to the bottom 122 of the reinforcing middle pillar 106 by welding or the like. Further, a reinforcing member 126c is provided at a corner formed by the first piece 126a and the second piece 126b, and the mounting piece 126 is reinforced.
[0022]
The middle pillar reinforcing member 107 is attached so as to cover the notch 125 of the middle pillar 106, and serves to reinforce the reduction in strength of the middle pillar 106 due to the formation of the notch 125. FIG. 5 is a schematic perspective view showing the configuration of the middle pillar reinforcing member 107. As shown in the figure, the middle pillar reinforcing member 107 has a bottom 127, a bolt hole 128 substantially orthogonal to the bottom 127, and a bolt hole 128. This is an L-shaped member including a bent portion 129 and a reinforcing plate 130 joined to the back surface of the bottom portion 127. The width dimension W4 and the height dimension H4 of the middle pillar reinforcing member 107 are slightly smaller than the width dimension W3 and the height dimension H3 of the U-shaped member 119 constituting the reinforcing middle pillar 106. Can be disposed in contact with the inner peripheral surface of the reinforcing middle pillar 106. Further, the central portion in the longitudinal direction of the bent portion 129 is cut out in the width direction, and when the bearing brace 108 is disposed, the notch 131 is passed through, so that the bearing brace 108 and the middle column reinforcing member 107 Does not interfere.
[0023]
The load bearing brace 108 reinforces the shaft set 101 by connecting corner portions formed by the shaft post 83 and the shaft crosspiece 84 at relative angular positions. As shown in FIG. 1, the load-bearing brace 108 is composed of two brace bodies 108a made of a thin round bar or the like, and a turnbuckle for connecting the two brace bodies 108a to each other and adjusting the tension of the load-bearing brace 108. 108b, and a brace mounting bracket 108c which is fixed to opposite ends of the two brace bodies 108a by welding or the like, and which mounts the load-bearing braces 108 at the corners of the shaft assembly 101. In mounting the load-bearing brace 108, first, the brace mounting bracket 108c is fixed to each of the corners by a fixing tool such as a bolt (not shown), and then the tension is adjusted by turning the turn buckle 108b.
[0024]
FIG. 6 is a schematic perspective view showing the configuration of the brace mounting bracket 108c. As shown in the figure, a brace mounting bracket 108c includes a front plate 136, a rear plate 137, and a reinforcing plate in which a notch 135 is formed in an L-shaped member 134 having a shaft column joint 132 and a shaft beam joint 133. The plate 138 is fixed, and is attached to the corner of the shaft assembly 101 such that the front plate 136 faces the outside of the door. At the time of mounting the brace mounting bracket 108c, the shaft column joint portion 132 and the shaft bar joint portion 133 were brought into contact with the shaft column 83 and the shaft bar 84 at the corners, respectively, and provided at the shaft column joint portion 132. In the bolt holes 139 and the bolt holes 140 provided in the shaft beam joint portion 133, each is fixed with a fixing tool such as a bolt (not shown). At this time, the worker can perform a fixing operation by inserting his hand into the inside of the brace mounting bracket 108c from the cutout 135 formed in the front plate 136. Thus, the work of attaching the brace attachment fitting 108c can be performed only from the outside of the shaft set 101, and the work of removing the unillustrated inner wall panel provided on the indoor side of the shaft set 101 becomes unnecessary. It is possible to reduce the trouble of redoing the interior that accompanies the work.
[0025]
Hereinafter, a method for forming a non-bearing wall according to a second embodiment of the present invention will be described with reference to the drawings. The non-bearing wall forming method of the non-bearing wall according to the present embodiment is applied to the non-bearing wall 80 shown in FIG. 14, and in particular, the shaft column 83 is made of a steel material having a predetermined thickness or less. It is constructed when the buckling strength is not sufficient. FIG. 7 is a schematic front view showing the frame 201 of the load-bearing wall 200 according to the present embodiment, in which the outer wall panel 82 is removed from the frame 201 of the non-bearing wall 200, and the frame 201 is exposed to the outside. Is shown. As shown in the drawing, the shaft set 201 according to the present embodiment has the first structure except that a reinforcing shaft 202 for reinforcing the shaft 83 is provided along the longitudinal direction of the shaft 83. The structure is the same as that of the shaft set 101 of the load-bearing wall 100 according to the embodiment. In the drawings, the same members as those of the shaft set 101 are denoted by the same reference numerals, and detailed description thereof will be omitted.
[0026]
The reinforcing shaft column 202 is provided along the shaft column 83 to reinforce the shaft column 83, and to prevent the shaft column 83 from easily buckling when the shaft column 83 is made of a steel material having a predetermined thickness or less. is there. FIG. 8 is a schematic perspective view showing the reinforcing shaft column 202. As shown in the drawing, the reinforcing shaft column 202 has 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, and has a substantially hat-shaped vertical section. The width dimension W5 of the bottom 204 of the reinforcing shaft 202 is formed to be smaller than the width of the opening of the shaft 83 made of C-shaped steel, so that the reinforcing shaft 202 can be mounted inside the shaft 83. .
[0027]
Hereinafter, the construction procedure of the non-bearing wall bearing wall forming method according to the present embodiment will be described. The method for forming a non-bearing wall according to the present embodiment includes a cutting step, a reinforcing shaft post mounting step, a reinforcing center beam mounting step, a reinforcing center post mounting step, a load bearing brace mounting step, and a reinforcing member mounting step. And Hereinafter, each step will be described in more detail.
[0028]
In the existing framing process, first, in the framing 81 of the non-bearing wall 80 shown in FIG. 14, a middle portion in the longitudinal direction of the middle column 86 is cut off to divide it into an upper middle column 102 and a lower middle column 103. Further, the middle rail 85 is cut off at the connection portions with the shaft pillars 83 at both ends. In addition, as a tool used for cutting the middle pillar 86 and the middle rail 85, for example, a metal cutter (not shown) can be used.
[0029]
In the reinforcing shaft mounting step, the reinforcing shaft 202 is mounted along the longitudinal direction of the shaft 83. FIG. 9 is a diagram showing a state in which the reinforcing shaft column 202 is attached to the shaft column 83, and shows a cross section taken along line AA in FIG. As shown in the drawing, the bottom 204 of the reinforcing shaft 202 is brought into contact with the web surface 83 a inside the shaft 83, and is fixed by the bolt 207 in the bolt hole 203 provided in the bottom 204. In the case of the first embodiment, that is, in the case of a configuration without the reinforcing shaft column 202, this step is omitted, and the process proceeds to the next reinforcing bar mounting step.
[0030]
As shown in FIG. 7, both ends of the reinforcing bar 104 are attached to the longitudinal center of the reinforcing shaft 202 in the reinforcing bar mounting step. FIG. 10 is an enlarged view of the position X in FIG. 7. As shown in FIG. 10, one end of the L-shaped plate P is brought into contact with the web surface 103 a of the lower middle pillar 103 and fixed by bolting. At the same time, the other end is brought into contact with the bottom portion 110 of the reinforcing bar 104 and fixed by bolting. On the other hand, FIG. 11 is an enlarged view of the position Y in FIG. 7. As shown in FIG. 11, the second pieces 114 b of the mounting pieces 114 provided at both ends of the reinforcing bar 104 are And is fixed by bolting. Although not shown in detail in the drawings, in the case of the first embodiment, the second piece 114b of the mounting piece 114 may be fixed by abutting the web surface 83a of the shaft 83.
[0031]
In the reinforcing middle pillar mounting step, both ends of the reinforcing middle pillar 106 are connected to the reinforcing middle pillars 104, respectively. More specifically, as shown in FIG. 10, the second piece 126 b of the mounting piece 126 provided at one end of the reinforcing middle pillar 106 is connected to the bottom 110 of the reinforcing middle bar 104 connected to the lower middle pillar 103. And fixed by bolting. On the other hand, the second piece 126b of the mounting piece 126 provided at the other end of the reinforcing middle pillar 106 is also not shown in detail in the drawing, but the bottom 110 of the reinforcing middle bar 104 similarly connected to the upper middle pillar 102 is also shown. Respectively.
[0032]
In the bearing brace mounting step, the corners of the frame 201 are connected by the bearing brace 108. To describe in more detail, as shown in FIG. 7, one brace mounting bracket 108c of the load-bearing brace 108 is arranged at a corner formed by the shaft column 83 and the shaft bar 84, and fixed with a fixing device such as a bolt. I do. Further, the other brace mounting bracket 108c is arranged at the diagonally opposite corner and fixed by bolting. At this time, the brace main body 108a is disposed so as to pass through the cutout 113 of the reinforcing bar 104 and the cutout 125 of the reinforcing pillar 106. Also, the other corner portions at the other diagonal positions are connected in the same manner by the load-bearing braces 108. At this time, the two load-bearing braces 108 intersect at the notch 125 of the reinforcing middle pillar 106. Finally, the tension of the load-bearing brace 108 is appropriately adjusted by turning the turnbuckle 108b.
[0033]
In the step of attaching the middle beam reinforcing member and the middle beam reinforcing member, first, the middle beam reinforcing member 105 is reinforced near the notch 113 of the middle beam 104, and the notch 113 of the first bent portion 111 is attached to the middle beam reinforcing member 105. It is arranged so as to be closed by the bent portion 117. FIG. 12 is a view showing a state where the middle crosspiece reinforcing member 105 is attached, and shows a cross section taken along line BB in FIG. 7. As shown in the drawing, the bottom portion 116 and the bent portion 117 of the middle crosspiece reinforcing member 105 are brought into contact with the bottom portion 110 and the first bent portion 111 of the middle crosspiece reinforcing member 104, respectively. 115 is aligned with the bolt hole 109 in the bottom 110 of the reinforcing bar 104 and fixed with bolts 207. Next, the center pillar reinforcing member 107 is closed near the notch 125 of the reinforcing center pillar 106, and the notch 125 of the first bent portion 123 is closed with a reinforcing plate 130 provided on the bottom 127 of the center pillar reinforcing member 107. And arrange them. FIG. 13 is a view showing the state of attachment of the middle column reinforcing member 107. As shown in the figure, the bent portion 129 and the bottom 127 of the middle column reinforcing member 107 are replaced with the bottom 122 and the first portion 122 of the U-shaped member 119. The bolt holes 129 of the bent portion 129 of the middle pillar reinforcing member 107 are aligned with the bolt holes 121 of the bottom 122 of the U-shaped member 119, and are fixed by the bolts 207. In addition, it is of course possible to dispose the middle beam reinforcing member 105 and the middle column reinforcing member 107 in the reverse order of the present embodiment.
[0034]
In addition, the method of forming a non-bearing wall according to the present invention and a structure of the bearing wall can be employed not only when expanding a house or the like but also when newly constructing a house.
[0035]
【The invention's effect】
As described above, the method for forming a non-bearing wall of a non-bearing wall according to claim 1 is a method of constructing a non-bearing wall in a housing or the like when rebuilding the house or the like. A crosspiece, a middle crosspiece provided substantially in parallel with the shaft crosspiece at a longitudinal center portion of the shaft post, and a middle crosspiece provided substantially parallel to the shaft post at the longitudinal middle portion of the shaft crosspiece. A bearing wall comprising a non-bearing wall incorporating a load-bearing brace into a bearing wall, comprising cutting off a longitudinal middle portion of the middle pillar into an upper middle pillar and a lower middle pillar. Along with the cutting, a cutting step of cutting both ends of the middle crosspiece from the axial pillar, and two reinforcing middle crossings each having a pair of left and right cutouts formed substantially symmetrically with respect to the center in the longitudinal direction, Attach both ends to the shaft column, and center the longitudinal direction at the lower end of the upper middle column, respectively. And, by attaching to the upper end of the lower middle pillar, the reinforcing middle pillar mounting step provided in two steps vertically substantially parallel to the shaft bar, the reinforcing middle pillar having a cutout in the longitudinal center, A reinforcing middle pillar mounting step of attaching both ends to the longitudinal center portions of the upper and lower reinforcing middle rails so as to be substantially parallel to the axial pillar, and a pair of the load-bearing braces, A fixing tool that passes through the notch portion and intersects with each other at the notch portion of the middle reinforcing column, and fixes both ends to corners formed by the shaft post and the shaft bar at relative angular positions. A bearing brace attaching step of fixing the middle brace reinforcing member for closing and reinforcing the cutout portion of the reinforcing middle crosspiece, and the cutout portion of the reinforcing middle pillar, and the strength brace, Take each while avoiding Since it includes a reinforcing member mounting step for attaching, the labor for removing or newly installing the entire frame can be reduced, and the work of redoing the interior that occurs when the frame is removed is not required. Can be achieved.
[0036]
Further, according to the present invention, the amount of industrial waste generated is significantly reduced as compared with the case where the non-bearing wall is removed together with the frame, and the cost required for transportation and treatment can be reduced.
[0037]
Further, according to the present invention, since welding work of the brace is not required, ordinary workers who are not qualified to perform welding can easily perform the work, and the reliability of the work can be improved.
[0038]
Further, according to the present invention, a part of the existing shaft assembly is cut off, and a new member having a cut-out portion for avoiding interference with the load-bearing brace is provided. It is possible to arrange the load-bearing braces in one stage without having to do so. Thereby, the buckling strength of the shaft column can be improved by the amount that the inclination angle of the load-bearing brace becomes smaller and the yield load of the load-bearing brace becomes lower than in the case where the load-bearing braces are arranged in two stages.
[0039]
Further, according to the present invention, since the work of installing the load-bearing brace can be performed only from the outside of the frame, the work of removing the inner wall panel becomes unnecessary, and the labor of redoing the interior that accompanies the work is eliminated. Can be reduced.
[0040]
In addition, the method for forming a non-bearing wall of a non-bearing wall according to claim 2 is a method of constructing a non-bearing wall for an extension or renovation of a house or the like. A middle beam provided substantially parallel to the shaft bar at a longitudinal center portion of the shaft pillar, and a middle pillar provided substantially parallel to the shaft column at a longitudinal center portion of the shaft beam. In the frame set, a load-bearing wall construction method of a non-bearing wall that incorporates a load-bearing brace as a load-bearing wall, and cuts off the middle portion in the longitudinal direction of the middle pillar to divide it into an upper middle pillar and a lower middle pillar, A cutting step of cutting both ends of the middle crosspiece from the shaft, a reinforcing shaft mounting step of attaching a reinforcing shaft for reinforcing the shaft along the shaft, and a longitudinal center Two reinforced middle bars each having a pair of left and right cutouts formed at substantially symmetrical positions, and both ends thereof are Attachment to the shaft pillar, and attachment of the longitudinal middle part to the lower end of the upper middle pillar and the upper end of the lower middle pillar, respectively, thereby providing a reinforcing middle rail provided substantially vertically in two stages in parallel with the shaft rail. A reinforcing pillar having a notch formed in the center in the longitudinal direction, and both ends of the reinforcing pillar having a notch formed in the center in the longitudinal direction thereof are respectively substantially parallel to the axial pillar, and are respectively attached to upper and lower longitudinal bars of the reinforcing pillar. Attachment step, the pair of load-bearing braces, passing through the notch portion of the upper and lower reinforcing crosspiece, and cross each other in the notch portion of the reinforcing middle pillar, each end portion, A bearing brace mounting step of fixing with a fixing tool at a corner formed by the shaft post and the shaft bar at a relative angular position, and reinforcing by closing the notch portion of the reinforcing middle bar and the notch portion of the reinforcing middle pillar. Inside to do A reinforcing member mounting step of mounting the reinforcing member and the middle column reinforcing member while avoiding the bearing braces. In addition to the effect of the non-bearing wall bearing wall forming method according to claim 1, Buckling strength can be further improved.
[0041]
Further, the structure of the load-bearing wall according to claim 3 is provided inside the shaft post and the shaft bar arranged in a frame shape, at a central portion in the longitudinal direction of the shaft bar, substantially in parallel with the shaft post. The middle pillar is divided into an upper middle pillar and a lower middle pillar by cutting off the middle part in the longitudinal direction, and a reinforcing middle bar in which a pair of left and right notches is formed at a position substantially symmetrical with respect to the longitudinal center. By attaching both end portions to the shaft post, and attaching a longitudinal center portion to a lower end portion of the upper middle pillar and an upper end portion of the lower middle pillar, respectively, the upper and lower two stages are substantially parallel to the shaft beam. The reinforcing pillar having a notch formed at the center in the longitudinal direction is attached to both ends of the reinforcing pillar at the center in the longitudinal direction so as to be substantially parallel to the shaft pillar. And a pair of load-bearing braces pass through the notches of the upper and lower reinforcing bars. In addition, both ends of each of the notched portions of the reinforcing middle pillar are fixed to a corner portion formed by the shaft pillar and the shaft bar at a relative angular position by a fixing tool so as to intersect with each other at the notch portion, and the reinforcement is performed. Since the notch portion of the middle crosspiece, and the middle crosspiece reinforcing member for blocking and reinforcing the notch portion of the reinforcing middle pillar, and the middle pillar reinforcing member are respectively disposed avoiding the load-bearing braces. The same effect as that of the non-bearing wall forming method of claim 1 can be obtained.
[0042]
Further, the structure of the load-bearing wall according to claim 4 is provided inside the shaft post and the shaft bar arranged in a frame shape, at a central portion in the longitudinal direction of the shaft bar, substantially in parallel with the shaft post. The middle pillar is divided into an upper middle pillar and a lower middle pillar by cutting off a longitudinal middle part thereof, and a reinforcing pillar for reinforcing the pillar is disposed along the pillar, and the longitudinal pillar is disposed along the longitudinal pillar. The reinforcing crosspiece in which a pair of left and right cutouts are formed at positions substantially symmetrical with respect to the center is attached to both ends of the reinforcing shaft, and the center in the longitudinal direction is the lower end of the upper middle pillar, respectively. By being attached to the upper end of the lower middle pillar, the reinforcing middle pillar, which is disposed in two steps vertically substantially in parallel with the shaft beam and has a cutout at the center in the longitudinal direction, has both ends vertically. By being attached to the longitudinal center portion of the reinforcing middle bar, it is arranged substantially in parallel with the shaft post. A pair of load bearing braces pass through the notch portions of the upper and lower reinforcing crosspieces, and cross each other at the notch portions of the reinforcing middle post, so that both end portions are the shaft post and the shaft post. A middle beam reinforcing member fixed to a corner portion formed by a shaft bar at a relative angular position by a fixing tool, for closing and reinforcing the notch portion of the reinforcing middle beam, and the notch portion of the reinforcing middle pillar, and Since the middle column reinforcing members are disposed so as to avoid the load-bearing braces, respectively, in addition to the effect of the structure of the load-bearing wall according to claim 3, the buckling resistance of the shaft column can be further improved. .
[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 cross bar 104 according to the embodiment of the present invention.
FIG. 3 is a schematic perspective view showing a configuration of a middle beam reinforcing member 105 according to the embodiment of the present invention.
FIG. 4 is a schematic perspective view showing a configuration of a reinforcing middle pillar 106 according to the embodiment of the present invention.
FIG. 5 is a schematic perspective view showing a configuration of a middle pillar reinforcing member 107 according to the embodiment of the present invention.
FIG. 6 is a schematic perspective view showing a configuration of a brace mounting bracket 108c according to the embodiment of the present invention.
FIG. 7 is a schematic front view showing a frame 201 of a load-bearing wall 200 according to a second embodiment of the present invention.
FIG. 8 is a schematic perspective view showing a reinforcing shaft column 202 according to a second embodiment of the present invention.
FIG. 9 is a schematic sectional view showing an AA section in FIG. 7;
FIG. 10 is a partially enlarged view in which a position X in FIG. 7 is enlarged;
FIG. 11 is an enlarged partial view of a position Y in FIG. 7;
FIG. 12 is a schematic sectional view showing a BB section in FIG. 7;
FIG. 13 is a schematic perspective view showing an attached state of a middle pillar reinforcing member 107 according to the embodiment of the present invention.
FIG. 14 is a schematic front view showing a shaft set 81 of a non-bearing wall 80.
[Explanation of symbols]
80 Non-bearing wall
81, 101, 201 shaft set
83 axle
84 shaft bar
85 Nakabashi
86 Middle Pillar
100,200 bearing wall
102 Upper middle pillar
103 Lower middle pillar
104 Reinforcing bar
105 Middle beam reinforcement
106 Reinforced pillar
107 Middle pillar reinforcement
108 Strength brace
113, 118, 125, 131 Notch
202 Reinforced shaft column

Claims (4)

In the case of an extension or renovation of a house or the like, a shaft pillar and a shaft bar arranged in a frame shape forming a non-bearing wall in an existing building part, and provided at a central portion in a longitudinal direction of the shaft column substantially in parallel with the shaft bar. A non-bearing wall having a bearing brace incorporated into a shaft set including a center rail provided and a center pillar provided substantially in parallel with the shaft pillar at a longitudinal center portion of the shaft rail. Of the load-bearing wall construction method,
A cutting step of cutting off the middle part in the longitudinal direction of the middle pillar and dividing it into an upper middle pillar and a lower middle pillar, and cutting both ends of the middle crosspiece from the axial pillar,
Two reinforcing middle bars each having a pair of left and right cutouts formed substantially symmetrically with respect to the center in the longitudinal direction, both ends of which are attached to the axial pillar, and the central portions in the longitudinal direction are respectively attached to the upper central pillar. A lower middle part, and a reinforcing middle rail mounting step of being attached to an upper end of the lower middle pillar in two stages, substantially parallel to the shaft rail,
A reinforcing middle pillar having a notch formed in the center in the longitudinal direction, and a reinforcing middle pillar mounting step of attaching both ends thereof to the longitudinal center of the reinforcing middle crosspiece so as to be substantially parallel to the axial pillar; and ,
The pair of load-bearing braces pass through the cutouts of the upper and lower reinforcing crosspieces, and cross each other at the cutouts of the reinforcing middle pillars. A bearing brace mounting step of fixing with a fixing tool at a corner formed by the shaft bar at a relative angular position,
A reinforcing member attaching step of attaching the notch portion of the reinforcing middle crosspiece, and a middle crosspiece reinforcing member for closing and reinforcing the notch portion of the reinforcing middle pillar, and a middle pillar reinforcing member while avoiding the load-bearing braces, A non-bearing wall bearing wall forming method, characterized by including: In the case of an extension or renovation of a house or the like, a shaft pillar and a shaft bar arranged in a frame shape forming a non-bearing wall in an existing building part, and provided at a central portion in a longitudinal direction of the shaft column substantially in parallel with the shaft bar. A non-bearing wall having a bearing brace incorporated into a shaft set including a center rail provided and a center pillar provided substantially in parallel with the shaft pillar at a longitudinal center portion of the shaft rail. Of the load-bearing wall construction method,
A cutting step of cutting off the middle part in the longitudinal direction of the middle pillar and dividing it into an upper middle pillar and a lower middle pillar, and cutting both ends of the middle crosspiece from the axial pillar,
Along the shaft post, a reinforcing shaft mounting step of mounting a reinforcing shaft for reinforcing the shaft,
Two reinforcing middle bars each having a pair of left and right notches formed substantially symmetrically with respect to the center in the longitudinal direction are attached to both ends of the reinforcing shaft, and the central portions in the longitudinal direction are respectively positioned in the upper part. By attaching to the lower end of the pillar, and the upper end of the lower middle pillar, a reinforcing middle rail mounting step of providing upper and lower two stages substantially parallel to the shaft rail,
A reinforcing middle pillar having a notch formed in the center in the longitudinal direction, and a reinforcing middle pillar mounting step of attaching both ends thereof to the longitudinal center of the reinforcing middle crosspiece so as to be substantially parallel to the axial pillar; and ,
The pair of load-bearing braces pass through the cutouts of the upper and lower reinforcing crosspieces, and cross each other at the cutouts of the reinforcing middle pillars. A bearing brace mounting step of fixing with a fixing tool at a corner formed by the shaft bar at a relative angular position,
A reinforcing member attaching step of attaching the notch portion of the reinforcing middle crosspiece, and a middle crosspiece reinforcing member for closing and reinforcing the notch portion of the reinforcing middle pillar, and a middle pillar reinforcing member while avoiding the load-bearing braces, A non-bearing wall bearing wall forming method, characterized by including: Inside the shaft pillar and the shaft bar arranged in a frame shape, a middle pillar arranged substantially parallel to the shaft pillar at the longitudinal center portion of the shaft bar is cut off at the longitudinal middle part. The reinforcing middle crosspiece is divided into an upper middle pillar and a lower middle pillar, and a pair of left and right cutouts are formed at positions substantially symmetrical with respect to the center in the longitudinal direction. By attaching the central part in the direction to the lower end of the upper middle pillar and the upper end of the lower middle pillar, respectively, it is arranged in two stages vertically in parallel with the shaft bar, and a notch is formed in the center part in the longitudinal direction. The formed reinforcing pillars are disposed substantially in parallel with the axial pillar by attaching both ends to the longitudinal center portions of the upper and lower reinforcing bars, and a pair of load-bearing braces are provided for the upper and lower reinforcing braces. Passing through the notch of the middle crossbar, and in the notch of the reinforcing So that both ends thereof are fixed to a corner portion formed by the shaft post and the shaft bar at a relative angular position by a fixing tool, the notch portion of the reinforcing middle bar, and the reinforcement A load-bearing wall structure, wherein a middle crosspiece reinforcing member for closing and reinforcing the notch portion of the middle pillar and a middle pillar reinforcing member are respectively arranged avoiding the load-bearing braces. Inside the shaft pillar and the shaft bar arranged in a frame shape, a middle pillar arranged substantially parallel to the shaft pillar at the longitudinal center portion of the shaft bar is cut off at the longitudinal middle part. It is divided into an upper middle pillar and a lower middle pillar, a reinforcing pillar for reinforcing the pillar is arranged along the pillar, and a pair of left and right cutouts is provided at a position substantially symmetric with respect to a longitudinal center. The reinforcing middle bar in which the portion is formed, both ends thereof are attached to the reinforcing shaft pillar, and a longitudinal center portion is attached to a lower end portion of the upper middle pillar, and an upper end portion of the lower middle pillar, respectively. The reinforcing middle pillar, which is disposed in two stages vertically in parallel with the shaft bar and has a cutout at the center in the longitudinal direction, has its both ends attached to the longitudinal center portions of the upper and lower reinforcing bars. Disposed substantially parallel to the shaft post, and a pair of load-bearing braces, Both ends are formed by the shaft post and the shaft bar so as to pass through the notch portion of the strong middle bar and intersect each other at the notch portion of the reinforcing middle column, and are at relative angular positions. A middle crosspiece reinforcing member fixed to a corner by a fixing tool, for blocking and reinforcing the notch portion of the middle reinforcing bar, and the notch portion of the middle reinforcing column, and a middle column reinforcing member, the bearing brace is provided. The structure of the load-bearing wall, which is arranged separately from each other.

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