JP2016216899A - Earthquake-proof wall structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a junction of a frame structure and a wooden wall, while securing higher fire resistance performance than a junction with an adhesive.SOLUTION: A wooden wall 110 installed in a frame structure 50 made of reinforced concrete has a wall-side recess 112 and a wall-side protrusion 114 engaged with a frame structure-side protrusion 34 and a frame structure-side recess 32, respectively, thus having been joined to the frame structure 50.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a seismic wall structure.

  Patent Document 1 discloses a technique related to a wooden earthquake-resistant wall having a deformation absorbing layer. In this prior art, a wooden earthquake-resistant wall is arranged in a plane surrounded by columns and beams with a gap corresponding to a deformation absorbing layer between the outer periphery and the inner surfaces of the columns and beams. It is characterized in that the wooden seismic walls are fixed to the columns and beams, filled with an adhesive with a lower Young's modulus than the seismic walls.

  However, since the bonding strength of adhesives decreases in the event of a fire, the technique of fixing wooden seismic walls to columns and beams with adhesives may not be used for buildings that require high fire resistance.

JP 2003-314083 A

  In view of the above fact, the present invention has an object to join a horizontal member and a wooden wall while ensuring higher fire resistance than when joining with an adhesive.

  In the first aspect of the present invention, the wood wall installed between the upper and lower horizontal members is joined to the horizontal member with a cement-based solidifying material.

  In the first aspect of the present invention, the wood wall installed between the upper and lower horizontal members is joined to the horizontal member with a cement-based solidified material, so that the wood wall is joined to the horizontal member with an adhesive. Compared with, a decrease in bonding strength during a fire is suppressed or prevented. That is, high fire resistance is ensured as compared with the configuration in which the wooden wall is joined to the horizontal member with an adhesive.

  According to a second aspect of the present invention, irregularities are formed on at least one of the upper end and the lower end of the wooden wall.

  In the second aspect of the present invention, since the unevenness is formed on at least one of the upper end portion and the lower end portion of the wooden wall, the bonding area is increased as compared with a flat case where the unevenness is not formed. Therefore, a shearing force is effectively transmitted between the wooden wall and the horizontal member.

  According to a third aspect of the present invention, the horizontal member is made of reinforced concrete, and at least one of the upper end portion and the lower end portion of the wooden wall is embedded in the horizontal member.

  In the invention according to claim 3, since at least one of the upper end portion and the lower end portion of the wooden wall is embedded in the horizontal member, compared with the case where both the upper end portion and the lower end portion are not embedded, Shear force is more effectively transmitted to and from the horizontal member.

  ADVANTAGE OF THE INVENTION According to this invention, a horizontal member and a wooden wall can be joined, ensuring a fire resistance performance higher than the case where it joins with an adhesive agent.

It is a front view which shows the earthquake-resistant wall structure of 1st embodiment. (A) is a longitudinal sectional view taken along line 2-2 in FIG. 1, (B) is a longitudinal sectional view when the side of the wooden wall and the frame are joined with a fastener, and (C) is the first. It is a longitudinal cross-sectional view corresponding to (A) of the earthquake-resistant wall structure of the 3rd modification of one Embodiment. (A) is an enlarged longitudinal sectional view along the X direction of the earthquake resistant wall structure of the first modified example of the first embodiment, (B) is an enlarged longitudinal sectional view when a stud is provided, (C) These are the expanded longitudinal cross-sectional views along the Y direction of the earthquake-resistant wall structure of the 2nd modification of 1st embodiment. It is a front view which shows the earthquake-resistant wall structure of the 3rd modification of 1st embodiment. It is a front view which shows the earthquake-resistant wall structure of the 4th modification of 1st embodiment. It is a front view which shows the earthquake-resistant wall structure of 2nd embodiment. (A) is a longitudinal cross-sectional view along the 7A-7A line of FIG. 6, (B) is a longitudinal cross-sectional view in case the frame part is not embed | buried under a frame. It is a front view which shows the earthquake-resistant wall structure of 3rd embodiment. It is a front view which shows the earthquake-resistant wall structure of the 1st modification of 3rd embodiment. (A) is a perspective view which shows the principal part of the earthquake-resistant wall structure of the 1st modification of 3rd embodiment shown in FIG. 9, (B) is a metal plate on the internal peripheral surface of a main body side recessed part and a frame side recessed part. It is a perspective view at the time of sticking, (C) is a perspective view which shows a butterfly-shaped wood piece member. It is a front view which shows the earthquake-resistant wall structure of the 2nd modification of 3rd embodiment. It is an expansion perspective view which shows the main body side engaging part of the main-body part of the earthquake-resistant wall structure of the 2nd modification of 3rd embodiment. It is an expansion perspective view which shows the principal part of the earthquake-resistant wall structure of the 3rd modification of 3rd embodiment. It is a partial notch front view which shows the earthquake-resistant wall structure of 4th embodiment. It is a perspective view which shows the principal part of the earthquake-resistant wall structure of 4th embodiment. It is a longitudinal cross-sectional view along line 16-16 in FIG. It is an expanded longitudinal cross-sectional view along the Y direction at the time of embedding and reinforcing the deck with a truss in the beam side convex part of a beam. It is a front view which shows a seismic-resistant wall structure at the time of providing a stud in a frame. It is a front view of the state which installed the lower body in the lower beam in the construction process of the earthquake-resistant wall structure of 4th embodiment. FIG. 20 is a front view of a state in which the main body is installed on the lower body in the subsequent process of FIG. 19 and joined with a cross screw. FIG. 21 is a front view of a state in which the left and right columns and the upper beam are arranged in the post-process of FIG. 20 and the lower body is installed on the upper beam. It is a disassembled perspective view of a precast beam, a precast column, an intermediate upper member, and a lower lateral member. It is a front view of the state which joined the column and beam made from a precast in the construction process of the earthquake-resistant wall structure of a second embodiment, and installed the middle upper member and the lower side member. It is a front view in the state where concrete was laid in the post-process of FIG. FIG. 25 is a front view of a state in which the main body portion is fitted into the frame portion and joined by a cross screw in the subsequent step of FIG. It is the elements on larger scale which looked at FIG. 7 (A) from the Y direction.

<First embodiment>
The earthquake-resistant wall structure according to the first embodiment of the present invention will be described. In each figure, the vertical direction is indicated by arrow Z, the out-of-plane direction is indicated by arrow Y, and the horizontal direction orthogonal to the vertical direction (arrow Z direction) and the out-of-plane direction (arrow Y direction) is indicated by arrow X.

(Construction)
As shown in FIG. 1, the seismic wall structure 100 of the present embodiment includes a frame 50 composed of a beam 10 and a column 20 as an example of a reinforced concrete horizontal member using concrete as an example of a cement-based solidified material. The wooden wall 110 is installed in the frame 50 of the frame 50. The beam 10 supports a slab 18 (see FIG. 2A).

  As shown in FIG. 2A, the beam 10 includes a beam main bar 12 extending in the beam direction, a beam shear reinforcing bar 14 surrounding the beam main bar 12, and a substantially U-shaped reinforcing bar 11. , Is arranged. Although not shown, the reinforced concrete column 20 (see FIG. 1) is provided with column main bars extending in the column direction and column shear reinforcement bars surrounding the column main bars.

  In this embodiment, the wooden wall 110 is comprised by the orthogonal laminated board (CLT (Cross Laminated Timber)). The wooden wall 110 may be formed of a wooden panel other than the orthogonal laminated board. For example, you may be comprised with the single-plate laminated material (LVL (Laminated Veneer Lumber)). This also applies to the wooden walls described in the second and subsequent embodiments. The woody wall 110 of this embodiment is composed of a plurality of plate members 111. A single-piece wooden wall 110 may be used.

  As shown in FIG. 1, the upper end portion 110A, the lower end portion 110C, and the left and right side end portions 110B and 110D of the wooden wall 110 are convex inward in the in-plane direction and convex in the in-plane direction. A plurality of wall-side convex portions 114 are alternately formed. In addition, the wall side recessed part 112 and the wall side convex part 114 of this embodiment are made into the substantially triangular shape by the front view. Further, a plurality of triangular frame-side convex portions 34 and frame-side concave portions 32 with which the wall-side concave portions 112 and the wall-side convex portions 114 are engaged are formed on the inner wall surface of the frame 50 (the beam 10 and the column 20). Yes.

  Note that, as shown in FIG. 2B, a metal fastener 40 having an L-shaped cross section may be joined to the side surface of the wooden wall 110 and the frame 50.

  Here, the arrangement and pitch of the wall-side concave portion 112 and the wall-side convex portion 114 and the corresponding frame-side convex portion 34 and the frame-side concave portion 32 shown in FIG. 1 are merely examples, and are not limited thereto. For example, in this embodiment, the wall side recessed part 112 is formed in the up-and-down edge part of each board | plate material 111 which comprises the wooden wall 110, respectively, However, It is not limited to this. Wall-side convex portions 114 may be formed at the upper and lower ends of each plate material 111, and wall-side concave portions 112 and wall-side convex portions 114 may be formed at the upper and lower ends of each plate material. .

  Further, the shapes of the wall-side concave portion 112 and the wall-side convex portion 114 and the corresponding frame-side convex portion 34 and the frame-side concave portion 32 are not limited to a triangular shape, and may be a rectangular shape, It may be a shape.

  Moreover, the recessed part and convex part which mutually engage in the right and left side part of each board | plate material 111 may be formed.

(Function and effect)
Next, the operation and effect of this embodiment will be described.

  The wood wall 110 installed in the reinforced concrete frame 50 is joined to the frame 50 by engaging the wall-side concave portion 112 and the wall-side convex portion 114 with the frame-side convex portion 34 and the frame-side concave portion 32. .

  Therefore, compared with the case where the end face 110E of the wooden wall 110 (see FIG. 3C) is flat, the joining area increases, so that shear force is effectively transmitted between the wooden wall 110 and the frame 50. Is done. When a shearing force is applied to the frame 50 during an earthquake, a band-like compression bundle is formed obliquely from one corner on the diagonal of the wooden wall 110 toward the other corner. A shearing force is transmitted between the wooden wall 110 and the frame 50 by this compression bundle.

  Moreover, since the fall of the joining force at the time of a fire is suppressed or prevented compared with the structure by which the wooden wall is joined to the frame 50 with the adhesive agent whose joining force falls at the time of a fire, high fire resistance performance is ensured.

  In addition, although the wall side recessed part 112 and the wall side convex part 114 are each formed in the upper end part 110A of the wooden wall 110, the lower end part 110C, and the left and right side edge parts 110B and 110D, it is not limited to this. The left and right side end portions 110B and 110D of the wooden wall 110 do not have to be formed with the wall side concave portion 112 and the wall side convex portion 114, and at least one of the upper end portion 110A and the lower end portion 110C has the wall side concave portion 112 and The wall side convex part 114 should just be formed.

  That is, it is only necessary that at least one of the upper end portion 110 </ b> A and the lower end portion 110 </ b> C of the wooden wall 110 is joined to the frame 50. This also applies to the modified examples described later and the seismic wall structures after the second embodiment.

[Modification]
Next, a modification of this embodiment will be described.

(First modification)
In the earthquake-resistant wall structure 101 of the first modification shown in FIG. 3 (A), the inner wall surface 50A of the frame 50 is flat with no irregularities. A gap 45 between the wall-side recess 112 of the wooden wall 110 and the inner wall surface 50A of the frame 50 is filled with a filler 45 made of a cement-based solidifying material such as grout or mortar.

  Note that, as shown in FIG. 3B, a stud 42 protruding into the gap 36 may be provided on the frame 50.

  Here, the wall-side recess 112 and the wall-side protrusion 114 are not formed on the wooden wall 110 and may be flat. In this case, the end surface 110E of the wooden wall 110 (see FIG. 3C) is installed with a gap with respect to the inner wall surface 50A of the frame 50, and the filler 45 is filled and joined to the gap.

(Second modification)
In the earthquake-resistant wall structure 102 of the second modification shown in FIG. 3C, an angle 44 having a U-shaped cross section (groove shape) is joined to the inner wall surface 50 </ b> A of the frame 50 by a stud 46. The angle 44 is a member constituting the frame 50.

  The wooden wall 110 is not formed with the wall-side concave portion 112 and the wall-side convex portion 114. Then, the lower end portion 110C (and the upper end portion 110A and the left and right side end portions 110B and 110D (not shown)) of the wooden wall 110 are installed in the angle 44 and filled with the filler 45. The wooden wall 110 may be provided with a wall-side concave portion 112 and a wall-side convex portion 114 (see FIG. 1).

(Third modification)
In the earthquake-resistant wall structure 103 of the third modified example shown in FIGS. 4 and 2C, the upper end portion 110A, the lower end portion 110C and the left and right side end portions 110B and 110D of the wooden wall 110 are the beams 10 and columns of the frame 50. 20 (embedded only). Note that the left and right side end portions 110B and 110D of the wooden wall 110 may not be embedded in the column 20 of the frame 50, and at least one of the upper end portion 110A and the lower end portion 110C is embedded in the beam 10 of the frame 50. Just do it.

  Moreover, the wall side recessed part 112 and the wall side convex part 114 do not need to be formed in the wooden wall 110 like the 2nd modification.

(Fourth modification)
In the earthquake-resistant wall structure 104 of the fourth modification shown in FIG. 5, a metal piece 70 is joined to the inner wall surface 50 </ b> A of the frame 50 by a stud 72. The metal object 70 of this modification has a shape (a shape like a so-called butterfly-shaped upper half (or lower half)) whose vertical width decreases from both ends in the X direction toward the center. In addition, a wall-side recess 113 is formed in the wooden wall 110 and is engaged with the hardware 70. Note that the hardware 70 is a member constituting the frame 50.

<Second embodiment>
The earthquake-resistant wall structure according to the second embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the member same as 1st embodiment and its modification, and the overlapping description is abbreviate | omitted.

(Construction)
As shown in FIG. 6, the seismic wall structure 200 of the present embodiment includes a frame 50 composed of a reinforced concrete beam 10 and a column 20, and a wooden wall 210 installed in the plane of the frame 50. It is configured. The wooden wall 210 includes a wooden rectangular main body part 220 and a wooden frame part 230 provided around the main body part 220.

  The frame portion 230 has a wall-side concave portion 112 and a wall-side convex portion 114 formed therein, and the wall-side convex portion 114 is embedded (only embedded) in the frame 50 (the beam 10 and the column 20). In the present embodiment, the main body 220 is joined to the frame 230 by the cross screw 202 as shown in FIG. Note that the cross screw 202 may be driven obliquely in a front view as shown in FIG. That is, as shown in FIGS. 6 and 26, the cross screw 202 may be driven with an angle with respect to each of the X direction and the Y direction. By driving the cross screw 202 diagonally in this way, the cross screw 202 effectively resists loads from the X direction and the Y direction. The cross screw 202 is not an essential member. Further, the frame portion 230 may be a single plate laminated material (LVL) or a cross laminated plate (CLT).

As shown in FIG. 7A, a beam reinforcing bar 16 extending in the vertical direction is arranged on the beam 10 of the frame 50 of the present embodiment. The beam reinforcing bars 16 are arranged such that the upper portion 16 </ b> A is overlapped on the outer side in the out-of-plane direction of the beam shear reinforcing bars 14, and the lower end portion 16 </ b> B extends to a position where it overlaps the frame portion 230. The shape of the beam reinforcing bar 16 is not limited to this, and may not be arranged if not necessary.
(Function and effect)
Next, the operation and effect of this embodiment will be described.

  The frame portion 230 of the wooden wall 210 installed in the reinforced concrete frame 50 is joined to the frame 50 by the wall-side convex portion 114 being embedded and engaged in the frame 50.

  Therefore, compared with the structure in which the wooden wall is bonded to the frame 50 with an adhesive that decreases the bonding strength in the event of a fire, a decrease in the bonding force in the event of a fire is suppressed or prevented, and thus high fire resistance is ensured.

  Further, the shear force is effectively transmitted between the wooden wall 210 and the frame 50. When a shearing force is applied to the frame 50 during an earthquake, a band-like compression bundle is formed obliquely from one corner on the diagonal of the wooden wall 210 to the other corner. A shearing force is transmitted between the wooden wall 210 and the frame 50 by this compression bundle.

  Moreover, even if the main body 220 of the wooden wall 210 is damaged during an earthquake, the proof stress can be recovered by replacing the main body 220.

  In addition, the frame part 230 does not need to be embed | buried under the frame 50 (the beam 10 and the pillar 20) like FIG.7 (B) of 2nd embodiment. In this case, as in the first modification of the first embodiment shown in FIGS. 3A and 3B, the gap 36 between the wall-side recess 112 of the wooden wall 210 and the inner wall surface 50A of the frame 50 is filled. The material 45 is filled. Moreover, as shown in FIG. 7B, a substantially U-shaped reinforcing bar 17 may be used.

  Moreover, you may apply the structure of the 2nd modification of 1st embodiment, and the 4th modification to joining to the frame part 230 and the frame 50. FIG.

(Construction direction)
Next, an example of the construction method of this embodiment is demonstrated.

  In this example, as shown in FIG. 25, the frame portion 231 is not formed with the wall-side concave portion 112 and the wall-side convex portion 114 (see FIG. 4). Further, as shown in FIGS. 22 and 23, an anchor bolt 440 is provided in the frame portion 231 (see also FIGS. 15 and 16).

  The reinforced concrete beam 10 and the column 20 constituting the frame 50 shown in FIG. 25 are made of precast (more precisely, an intermediate portion 37 and the like to be described later of the beam 10 are placed on the site). In addition, the beam 10 is struck at the site between the left beam portion 33 and the right beam portion 35 with the left beam portion 33 and the right beam portion 35 protruding from the joint portion 30 in the X direction (see also FIG. 22). And an intermediate portion 37 to be provided. Further, the upper portion 33A of the left beam portion 33 and the upper portion 35A of the right beam portion 35 are arranged as shown in FIGS. 22 and 23, but the concrete is placed on site.

  As shown in FIGS. 22 to 25, the frame portion 231 includes a left and right vertical member 250, a left upper horizontal member 252, an upper right horizontal member 254, an intermediate upper horizontal member 256, and a lower horizontal member 258. The vertical member 250 is bonded to the precast column 20 in advance. The upper left lateral member 252 is previously joined to the precast left beam portion 33, and the upper right lateral member 254 is joined to the precast right beam portion 35 in advance. Further, the intermediate upper lateral member 256 and the lower lateral member 258 are joined to the beam 10 when placing concrete on site.

  First, as shown in FIG. 23, the left and right columns 20 and the beam 10 are joined. In addition, as shown in FIG. 22, the joint part 30 from which the left beam part 33 and the right beam part 35 protrude from the upper side to the upper end part 20U of the column 20 is joined. Next, the intermediate upper lateral member 256 and the lower lateral member 258 are installed, and concrete is placed and the frame portion 231 is joined to the column 20 and the beam 10 as shown in FIG. And as shown in FIG. 25, the main-body part 220 is engage | inserted to the frame part 231 from an out-of-plane direction, and the main-body part 220 is joined to the frame part 231 by the cross screw 202 (also refer FIG.7 and FIG.26).

<Third embodiment>
The earthquake-resistant wall structure according to the third embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the member same as 1st embodiment and 2nd embodiment containing a modification, and the overlapping description is abbreviate | omitted.

(Construction)
As shown in FIG. 8, the earthquake resistant wall structure 300 of the present embodiment includes a frame 50 and a wooden wall 310 installed in the plane of the frame 50. The wooden wall 310 includes a wooden main body 320 and a wooden frame 330 provided around the main body 320.

  As for the frame part 330, the outer peripheral part 330A is embed | buried under the frame 50 (the beam 10 and the pillar 20). In addition, the structure of 1st embodiment and 2nd embodiment including a modification can be applied to joining of the frame part 330 and the frame 50. FIG.

  A plurality of main body side concave portions 322 that are concave inward in the in-plane direction and main body side convex portions 324 that are convex outward in the in-plane direction are formed alternately on the upper end portion, lower end portion, and left and right side end portions of the main body portion 320. Has been. In addition, the main body side concave portion 322 and the main body side convex portion 324 of the present embodiment are rectangular. A plurality of rectangular frame-side convex portions 334 and frame-side concave portions 332 that engage with the main body-side concave portion 322 and the main body-side convex portion 324 are formed on the inner wall surface of the frame portion 330.

(Function and effect)
Next, the operation and effect of this embodiment will be described.

  This embodiment also has the same operations and effects as the second embodiment. Furthermore, in the present embodiment, the main body side concave portion 322 and the main body side convex portion 324 of the main body portion 320 are engaged with the frame side convex portion 334 and the frame side concave portion 332 of the frame portion 330, so The shear force is effectively transmitted to and from 330.

[Modification]
Next, a modification of this embodiment will be described.

(First modification)
In the earthquake-resistant wall structure 301 of the modification shown in FIG. 9, a wooden wall 311 is installed in the plane of the frame 50. The wooden wall 311 includes a wooden main body portion 321 and a wooden frame portion 331 provided around the main body portion 321 and having an outer peripheral portion 331E embedded in the frame 50. A gap 353 is formed at the corner of the frame portion 331.

  As shown in FIGS. 9 and 10A, a plurality of concave body-side recesses 323 are formed on the inner side in the in-plane direction at the upper end, the lower end, and the left and right side ends of the body 320, respectively. A frame-side recess 333 is formed on the inner wall surface of the frame portion 331 at the same position as the body-side recess 323.

  A cube-shaped wood piece member 350 is fitted in a space 335 (see FIG. 9) formed with the main body side recess 323 and the frame side recess 333.

  Next, the operation and effect of this modification will be described.

  In the event of an earthquake, the strength is determined by fitting the main body portion 321 and the frame portion 331 into the wooden piece member 350 so that the wooden piece member 350 is damaged first. If it demonstrates from another viewpoint, this modification is a structure which prevents the damage by the dent of the main-body part 321 and the frame part 331, and carries out a ductile destruction with the proof stress of the wood piece member 350. Therefore, after the earthquake, the proof stress is restored by replacing only the damaged wood piece member 350.

  Further, a gap 353 is formed at a joint portion between the wooden wall 311 and the frame 50 to which shear force is transmitted by a compression bundle formed in a band shape obliquely from one corner portion on the diagonal line of the wooden wall 311 toward the other corner portion. By forming the above, the frame 50 is prevented from being broken due to excessive shearing force concentrated on the corners of the frame 50.

  The wood piece member 350 is not limited to a cubic shape. For example, it may be triangular when viewed from the front, or may be a so-called butterfly shape in which the width in the vertical direction becomes shorter from both ends toward the center as shown in FIG. The shapes of the main body side recess 323 and the frame side recess 333 are appropriately matched to the shape of the wood piece member 350.

  Further, as shown in FIG. 10B, a metal plate 354 may be attached to the inner peripheral surfaces of the main body side recess 323 and the frame side recess 333. Thus, by sticking the metal plate 354 to the inner peripheral surfaces of the main body-side recess 323 and the frame-side recess 333, the denting of the wood piece member 350 is suppressed, and the yield strength is improved. In addition, this concentrates deformation only on the wood piece member 350.

  Although illustration is omitted, the gap 353 may not be formed at the corner of the frame portion 331. Further, the frame portion 331 may be configured by four members 331A, 331B, 331C, and 331D on the upper, lower, left, and right sides. In this case, the frame portion 353A outside the gap 353 may not be provided.

(Second modification)
In the earthquake-resistant wall structure 302 of the second modification shown in FIG. 11, a wooden wall 312 is installed in the plane of the frame 50. The wooden wall 312 includes a wooden main body portion 340 and a wooden frame portion 352 provided around the main body portion 340 and having an outer peripheral portion 352A embedded in the frame 50. The main body 340 is composed of five pieces, that is, an upper part 341, a lower part 342, a side part 343, a side part 344 and a central part 345.

  A main body side engaging portion 360 is formed at the upper end portion, the lower end portion, and the left and right side end portions of the main body portion 340. A frame side engaging portion 368 with which the main body side engaging portion 360 is engaged is formed on the inner peripheral surface of the frame portion 352.

  As shown in FIG. 12, the main body side engaging portion 360 of the main body 340 has a convex portion 362 </ b> A and a convex portion 362 </ b> B that are half the thickness of the plate so as not to overlap each other in the Y direction (plate thickness direction). They are provided alternately along the X direction.

  Although not shown in the drawing, similarly to the frame side engaging portion 368 of the frame portion 352, the convex portion 362A and the convex portion 362B having a half thickness are overlapped in the Y direction (plate thickness direction), respectively. In order to avoid this, they are provided alternately along the X direction.

  And the convex part 362A of the frame side engaging part 368 of the frame part 352 is engaged between the convex part 362A and the convex part 362A of the main body side engaging part 360 of the main body part 340, and the main body side engaging part 360 is engaged. The convex portion 362B of the frame side engaging portion 368 engages between the convex portion 362B and the convex portion 362B.

  Here, the main body side engaging portion 360 and the frame side engaging portion 368 cannot be engaged by moving the main body portion 340 in the out-of-plane direction with respect to the frame portion 352. Therefore, in the present embodiment, as described above, the main body 340 includes the upper part 341, the lower part 342, the side parts 343 and 344, and the central part 345.

  First, the side portions 343 and 344 are slid and fitted in the X direction (left direction or right direction) as indicated by an arrow X1. Thereafter, the upper part 341 and the lower part 342 are slid in the Z direction (upward or downward) as shown by an arrow Z1 and fitted. Finally, the central portion 345 is fitted in the out-of-plane direction.

  Note that the shape of the central portion 345 is not limited to a rectangular shape. For example, a triangular shape may be used, or a so-called butterfly shape in which the width in the vertical direction becomes shorter from both ends toward the center. Depending on the shape of the central portion 345, the upper portion 341, the lower portion 342, and the side portions 343 and 344 are also appropriately shaped.

  The main body 340 may be divided into two in the thickness direction. In the case where the main body 340 is divided in the thickness direction, the two can be fitted in the out-of-plane direction.

(Third modification)
A wooden wall 313 of the earthquake-resistant wall structure 303 of the third modification shown in FIG. 13 is provided with a main body 370 and a wooden frame embedded in the frame 50 (see FIG. 11 and the like) and provided around the main body 370. Part 380.

  A main body side convex portion 374 that is convex in the out-of-plane direction and a main body side concave portion 372 that is concave in the out-of-plane direction are formed at the end of the main body portion 370. Further, the frame portion 380 is formed with a frame-side convex portion 384 that is concave in the out-of-plane direction and a frame-side concave portion 382 that is convex in the out-of-plane direction.

  The main body side concave portion 372 and the main body side convex portion 374 of the main body portion 370 are engaged with the frame side convex portion 384 and the frame side concave portion 382 of the frame portion 380 in the out-of-plane direction, whereby the main body portion 370 and the frame portion 380 are engaged. And are joined.

<Fourth embodiment>
A seismic wall structure according to the fourth embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the member same as 1st embodiment-3rd embodiment containing a modification, and the overlapping description is abbreviate | omitted.

(Construction)
As shown in FIG. 14, the seismic wall structure 400 of the present embodiment is composed of a frame 50 composed of reinforced concrete beams 10 and columns 20, and a wooden wall 410 installed in the plane of the frame 50. Has been. The wooden wall 410 includes a wooden main body 420 and a wooden lower body 430.

  A main body side convex portion 424 and a main body side concave portion 422 are formed at the upper end portion and the lower end portion of the main body portion 420. Further, a lower-side convex portion 434 and a lower-side concave portion 432 that are engaged with the main-body-side convex portion 424 and the main-body-side concave portion 422 at the lower end portion of the main body portion 420 are formed at the upper end portion of the lower body 430.

  The upper beam 10 is formed with a beam-side recess 412 and a beam-side protrusion 414 that engage with the body-side protrusion 424 and the body-side recess 422 at the upper end of the body 420. A U-shaped reinforcing bar 416 is arranged on the beam-side convex portion 414 of the beam 10. Note that the beam-side convex portion 414 of the beam 10 may be reinforced by embedding a trussed deck (fellow deck) 490 shown in FIG.

  As shown in FIGS. 14, 15, and 16, the lower end portion 430 </ b> C of the lower body 430 of the wooden wall 410 is embedded in the lower beam 10.

  As shown in FIGS. 15 and 16, a seat sculpture 436 is formed in the lower recess 432 of the lower body 430. An anchor bolt 440 fixed to the beam 10 is provided so that the head 442 is installed in the seat carved portion 436.

  Further, as shown in FIG. 16, a metal clasp 470 is joined to the main body 420 and the lower body 430 with screws 472.

  As shown in FIG. 14, the left and right ends 410 </ b> B and 410 </ b> D of the wooden wall 410 (the main body 420 and the lower body 430) are embedded in the pillar 20.

(Function and effect)
Next, the operation and effect of this embodiment will be described.

  This embodiment also has the same operations and effects as the first to third embodiments.

  In the present embodiment, the main body side concave portion 422 and the main body side convex portion 424 of the main body portion 420 are engaged with the lower side convex portion 434 and the lower side concave portion 432 of the lower body 430. Shear force is effectively transmitted to and from the body 430.

  The wooden wall 410 may be configured by an upper body having a shape in which the lower body 430 is turned upside down and the main body 420, and a beam-side recess 412 and a beam-side protrusion 414 may be formed in the lower beam 10. .

(Construction method)
Next, an example of the construction method of this embodiment is demonstrated.

  In this example, as shown in FIG. 20, the main body 421 of the wooden wall 411 is formed with a main body side convex portion 424 and a main body side concave portion 422 (see FIG. 14), and the lower body of the wooden wall 411. The lower side convex portion 434 and the lower side concave portion 432 (see FIG. 14) are not formed in 431. Moreover, the main-body part 421 and the lower body 431 which comprise the wooden wall 411 are joined by the cross screw 202 (refer also FIG. 7 (A), FIG. 7 (B), and FIG. 26). An anchor bolt 440 (see FIGS. 15 and 16) is provided on the lower body 431. Moreover, in this example, as shown in FIG. 19, the lag screw 203 is provided in the side part and upper end part of the main-body part 421. As shown in FIG. Note that the lag screw 203 may not be provided.

  First, as shown in FIG. 19, the columns 20 and the beams 10 are arranged, a mold frame (not shown) is provided, and then the lower body 431 is installed on the lower beam 10. Concrete of the lower beam 10 is placed and the lower body 431 is joined to the beam 10. As shown in FIG. 20, the main body 421 of the wooden wall 411 is installed on the lower body 431, and the main body 421 is joined to the lower body 431 with the cross screw 202. As shown in FIG. 21, the left and right columns 20 and the upper beam 10 are laid out, a mold frame (not shown) is provided, and then placed on the lower body 431 on the upper beam 10. And although illustration is abbreviate | omitted, the concrete of the pillar 20 and the beam 10 is laid, and the main-body part 421 and the lower body 431 are joined to the pillar 20 and the beam 10. FIG.

<Others>
The present invention is not limited to the above embodiment.

  For example, when the wooden wall is long in the horizontal direction or when the wooden wall receives a large axial force, the wooden wall 21 may be provided as shown in FIG. In this figure, the stud 21 has a structure in which a wooden wall 117 is divided into a wooden wall 115 and a wooden wall 115. However, although illustration is omitted, a structure in which the stud 21 is passed through the wooden wall and the stud 21 is sandwiched by the wooden wall from both sides in the out-of-plane direction may be employed. Moreover, the spacer 21 may be connected to the upper and lower beams 10 or may not be connected. Further, a plurality of inter-columns 21 may be provided. Moreover, the material of the spacer 21 is not particularly limited. Here, as shown in FIG. 18, the third modification example (see FIG. 4) of the first embodiment has been described as an example in which the spacers 21 are provided. However, the spacers 21 are similarly applied to other embodiments and modifications. May be provided. Moreover, in FIG. 18, although the side edge part of the wooden wall 115 is embed | buried under the stud 21, it does not need to be embed | buried.

  For example, in the said embodiment, although it was the frame 50 comprised by the beam 10 and the pillar 20 of the reinforced concrete structure, it is not limited to this. For example, the frame constituting the upper part or the lower part of the frame 50 may be a slab instead of the beam 10. In addition to the reinforced concrete structure, for example, a steel frame structure or a wooden frame may be used.

  Further, for example, in the above embodiment, the wooden wall is installed in the frame, but the present invention is not limited to this. A wooden wall is installed outside the structural surface (between the upper and lower beams, between the upper and lower slabs, and between the upper and lower beams and the slab) without either or both of the left and right columns. A structure in which a wooden wall is joined to a slab may be used.

  In short, the wooden wall installed in the horizontal member such as a beam or a slab may be joined to the horizontal member with a cement-based solidifying material. The cement-based solidified material is a solidified material containing cement such as grout, concrete, mortar, and fiber reinforced concrete.

  Further, the grain direction of each wood member and the lamination direction of the laminated material and the laminated material are not specified.

  Further, the above-described plurality of embodiments and modification examples can be implemented in combination as appropriate. For example, the joint structure between the main body portion of the wooden wall and the frame portion or the lower body described in the second embodiment and the modified example may be applied to the joint structure between the wooden wall and the frame. Furthermore, the present invention can be implemented in various modes without departing from the gist of the present invention.

10 Beam (an example of a horizontal member)
50 frame 100 earthquake-resistant wall structure 101 earthquake-resistant wall structure 102 earthquake-resistant wall structure 103 earthquake-resistant wall structure 104 earthquake-resistant wall structure 110 wooden wall 117 wood wall 200 earthquake-resistant wall structure 210 wooden wall 300 earthquake-resistant wall structure 301 earthquake-resistant wall structure 302 earthquake-resistant wall structure 303 earthquake-resistant wall Structure 310 Wood wall 311 Wood wall 312 Wood wall 313 Wood wall 400 Earthquake resistant wall structure 410 Wood wall 411 Wood wall

Claims (3)

  A seismic wall structure in which a wooden wall installed between upper and lower horizontal members is joined to the horizontal member with a cement-based solidifying material. Concavities and convexities are formed on at least one of the upper end and the lower end of the wooden wall,
The earthquake-resistant wall structure according to claim 1. The horizontal member is reinforced concrete,
At least one of the upper end portion and the lower end portion of the wooden wall is embedded in the horizontal member,
The earthquake-resistant wall structure according to claim 1 or claim 2.

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