JP6527845B2 - Construction method of reinforcement wall - Google Patents

Description

  The present invention relates to a method of constructing a reinforcing wall, and more particularly to a method of constructing a reinforcing wall in which a planar member is attached to a wall of an existing wooden building to seismically reinforce the building.

  In Japan, large-scale earthquakes such as the Great East Japan Earthquake and the Great Hanshin Awaji Earthquake frequently occur, and in particular, the occurrence of large-scale earthquakes such as the Tokai Earthquake, Tonankai Earthquake, and Nankai Earthquake is predicted in the future. It is requested that the wooden buildings in urban areas be retrofitted with earthquakes. Also, in response to the Great Hanshin-Awaji Earthquake, in 1998, new earthquake-resistant standards were introduced to withstand large-scale earthquakes, for example, with regard to buildings made of wooden frame construction methods, and general detached houses built thereafter For wooden buildings such as houses, a certain earthquake resistance is secured, but for existing wooden buildings built before that, it does not meet the newly introduced earthquake resistance standards, so earthquake resistance There is a need to renovate.

  On the other hand, various structures using plane members as load-bearing elements have been proposed in place of those using bracing as structures for seismically reinforcing the walls of wooden buildings (see, for example, Patent Document 1). In addition, as a structure for imparting vibration control to the wall of a wooden building by a frame construction method, desired vibration control is achieved while securing a wall magnification necessary as a bearing wall by using a planar member constituting the bearing wall. An antiseismic load-bearing wall structure has also been developed which makes it possible to obtain performance (see, for example, Patent Document 2).

JP 2014-214514 A JP, 2009-84876, A

  According to the conventional structure and method in which the wall of a wooden building is seismically reinforced using a planar member, when constructing a new building such as a residential building, it can be easily constructed. The existing building by the frame construction method of the frame construction, the left and right columns of the rectangular frame and the pair of upper and lower horizontal members constituting the frame structure of the wall generally use a square of 105mm, 120mm, 135mm or 150mm width The rectangular frame generally only has a narrow depth of 105 mm, 120 mm, 135 mm or 150 mm, and the upper part of the rectangular frame is located in the ceiling pocket formed above the ceiling material For example, when attempting to use the planar members to seismically reinforce the existing building wall by using a wooden frame construction method, for example, the wall material of the wall and the wall base material as well as the ceiling material and the ceiling base material may be used. Need to be removed Flip and, along with it takes consuming task large and troublesome, so that the construction cost is increased.

  The present invention provides a method of constructing a reinforcing wall that can effectively reinforce the existing wooden building wall using a planar member by simple work while leaving the ceiling material and the ceiling base material remaining. Intended to be provided.

  In the present invention, a planar member is attached to the inside of a rectangular frame formed of a pair of upper and lower horizontal members and a pair of vertical members formed as a frame of the wall of an existing wooden building, and the building is reinforced by earthquake resistance. It is a construction method of a reinforcing wall, and the wall surface material of the surface side of the wall below the ceiling material and the wall foundation material are removed, and the construction is performed with the ceiling material and the ceiling foundation material left. The planar member is attached to an inner region of the rectangular frame surrounded by the pair of vertical members and the pair of horizontal members, and has the same width as the width of the inner region of the rectangular frame. The back side edge portion of the side portion of the divided planar member is brought into contact with the inner side surface of the middle portion of the pair of vertical members divided into at least two stages of divided planar members divided in the vertical direction Process of attaching the middle part support for the In the state where the position in the depth direction of the rectangular frame is positioned by bringing the divided planar members into contact with the intermediate portion receiving member with the back side edge portions of the side portions on both sides, each side portion is Fixing to the inner region of the rectangular frame by bonding to the inner surface of the vertical member using an edge joint metal and bonding the upper side to the inner surface of the upper cross member using an edge joint metal And positioning the position of the rectangular frame in the depth direction by bringing the bottom surface of the divided planar member into contact with the middle portion receiving member with the back side edge portions of the side portions on both sides. And bonding the respective side portions to the inner surface of the vertical member using an edge joint metal and bonding the lower side to the inner side surface of the lower cross member using an edge joint metal. Fixing in the inner region of the rectangular frame, and Providing a method of constructing a reinforcing wall including the step of joining and fixing the lower side of the divided planar member and the upper side of the lower divided side via the middle joint metal. The purpose is achieved.

  And the construction method of the reinforcing wall of the present invention is characterized in that the divided planar member of one or more intermediate portions is disposed between the uppermost divided surface member and the lowermost divided surface member. By bringing the back side edge portions of the side portions on both sides into contact with the middle portion receiving member, the positions of the rectangular frame in the depth direction are positioned, and each side portion is formed using an edge joint metal. It is preferable to include the process fixed to the inner area | region of the said rectangular frame by joining to the inner surface of the said perpendicular | vertical material.

  Further, in the method of installing a reinforcing wall according to the present invention, the edge joint metal is a metal having an L-shaped cross-sectional portion, and the middle joint metal is a metal having a flat plate shape. preferable.

  Furthermore, in the method of installing a reinforcing wall according to the present invention, the divided planar member includes a pair of left and right unit planar members divided into two at a central portion in the width direction of the inner region of the rectangular frame. Before the pair of left and right unit planar members are fixed to the inner region of the rectangular frame, the side portions disposed opposite to each other sandwich the vibration control rubber and are joined to each other. It is preferable to form a planar member.

Furthermore, in the method of installing a reinforcing wall according to the present invention, a joint reinforcing metal is attached to one side of the divided planar member facing each other, and the vibration control rubber is interposed between the joint reinforcing metal. Is preferably inserted.

  According to the construction method of the reinforcing wall of the present invention, the wall of the existing wooden building is effectively seismically reinforced using the planar member by the simple work while leaving the ceiling material and the ceiling base material. Can.

It is a partial see-through perspective view explaining the composition of the aseismatic reinforcement wall formed of the construction method of the reinforcement wall concerning one desirable embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 for explaining the configuration of the aseismatic reinforcing wall formed by the method of installing a reinforcing wall according to a preferred embodiment of the present invention. (A)-(d) is a schematic front view explaining the work process by the construction method of the reinforcement wall concerning one preferable embodiment of this embodiment. BRIEF DESCRIPTION OF THE DRAWINGS (a) is a front view which shows the structure of the aseismic reinforcing wall formed by the construction method of the reinforcing wall which concerns on one preferable embodiment of this invention, and is a front view shown in the state except a rectangular frame, (b) (a ) Is a cross-sectional view taken along the line B-B. (A) is a front view of edge part metal fittings, (b) is the side view which looked at (a) from the left side. (A) is a front view of an intermediate part joint metal, (b) is the side view which looked at (a) from the right side. (A) is a front view of a pair of joining reinforcement hardware which inserted | pinched damping rubber, (b) is sectional drawing in alignment with CC of (a).

  The method of constructing a reinforcing wall according to a preferred embodiment of the present invention is, for example, as shown in FIG. 1 and FIG. In addition, it is adopted as a method for newly forming. In the present embodiment, the seismic resistance-bearing wall structure 10 for reinforcement is, for example, an existing building by a wooden frame construction method built based on the old earthquake resistance standard prior to the new earthquake resistance standard introduced in 1998. For example, with the wall 30 of the existing wooden house, using the planar member 14, preferably with the ceiling material 25 and the ceiling base material (not shown) being left, and the existing bracing 31 (FIG. 2, FIG. 7) If it can be constructed without removing the reference), while leaving the brace 31 concerned, a wall structure that enables effective seismic retrofit to meet new seismic standards by efficiently strengthening seismic reinforcement by simple work It has become.

  For example, the existing building by wooden frame construction method built before 1998 is a pair of upper and lower horizontal members 11a and 11b of the rectangular frame 13 and a pair of vertical members 12a, which constitute the frame structure of the wall. 12b is generally formed using a square member having a width of 105 mm, 120 mm, 135 mm or 150 mm (105 mm in this embodiment), and the rectangular frame 13 is generally 105 mm, 120 mm, 135 mm or 150 mm (in this embodiment) The wall of the existing building has a narrow depth of only 105 mm, and the upper part of the rectangular frame 13 is disposed in the ceiling material 25 or the ceiling pocket 26 formed above the ceiling base material. If 30 is to be reinforced by the planar member 14, it may be necessary to remove the ceiling material 25 and the ceiling base material as well as the wall surface material and the wall base material of the wall 30. To become. In the method of installing a reinforcing wall according to this embodiment, preferably, the above-described seismic control load-bearing wall structure 10 is left on the wall 30 of an existing building with the ceiling material 25 and the ceiling base material remaining, and preferably existing. What was adopted as a construction method for enabling the existing wooden building wall 30 to be able to retrofit effectively the existing wooden building wall 30 by enabling simple installation inside the building while leaving the bracing 31 in place It is.

  Moreover, the seismic resistance bearing wall structure 10 for reinforcement formed of the construction method of the reinforcing wall of this embodiment is provided in the state which pinched | squeezed the seismic control rubber 20 (refer FIG. 7 (a), (b)). As a result, it is possible to exhibit desired vibration control performance while securing a preferably short-term reference strength of 0.9 to 14.0 kN / m which is required as a bearing wall.

  And the construction method of the reinforcement wall of this embodiment is a rectangular frame formed of a pair of upper and lower horizontal members 11a and 11b and a pair of vertical members 12a and 12b formed as a framework of the wall of the existing wooden building. It is a construction method of the reinforcement wall which attaches the planar member 14 inside 13 and carries out the seismic reinforcement of the building, Comprising: The wall surface material of the surface side of the wall 30 below the ceiling material 25 and the wall foundation material are removed Then, it is constructed with the ceiling material 25 and the ceiling base material left. As shown in FIG. 1, the planar member 14 is attached to the inner side of the rectangular frame 13 surrounded by the pair of right and left vertical members 12a and 12b and the pair of upper and lower horizontal members 11a and 11b. It is composed of at least two stages (two stages in this embodiment) of divided planar members 14e and 14f divided in the vertical direction and having the same horizontal width as the width of the region. In the method of constructing a reinforcing wall according to this embodiment, the back side edge portions of the side portions 16a, 16b, 16c, 16d of the divided planar members 14e, 14f are provided on the inner side surfaces of the middle portions of the pair of vertical members 12a, 12b. The process of attaching the middle part support member 19 for contacting, the uppermost part (upper part) of the divided planar member 14e, the back side edge parts of the side parts 16a and 16b on both sides are brought into contact with the middle part support member 19 In the state where the position in the depth direction of the rectangular frame 13 is positioned by bringing the rectangular frame 13 into contact, the side portions 16a and 16b are joined to the inner side surfaces of the vertical members 12a and 12b using the edge joint metal 22, and The process of fixing to the inner region of the rectangular frame 13 by joining the portions 17a and 17b to the inner side surface (lower surface) of the upper horizontal member 11a using the edge joint metal 22 and dividing the lowermost step (lower portion) The planar member 14f, on both sides By bringing the rear side edge portions of the side portions 16c and 16d into contact with the intermediate portion receiving member 19 and positioning the position of the rectangular frame 13 in the depth direction, each side portion 16c and 16d can be made of edge joint metal 22 is used to connect the inner side surfaces of the vertical members 12a and 12b, and to connect the lower side portions 17c and 17d to the inner side surface (upper surface) of the lower horizontal member 11b using the edge joint metal 22 The step of fixing in the inner region of the frame 13, the lower side portions 18a and 18b of the upper divided surface planar members 14e adjacent in the vertical direction, and the upper side portions 18c and 18d of the lower planar surface divided members 14f are intermediate And d) bonding and fixing via the joint metal part 23.

  Moreover, in the construction method of the reinforcing wall of the present embodiment, the divided planar member 14e of the upper stage is a pair of left and right unit planar members 14a and 14b divided into two at the central portion in the width direction of the inner region of the rectangular frame 13. In the pair of left and right unit planar members 14a and 14b, the central side portions 15a and 15b disposed opposite to each other are fixed to each other as vibration damping rubbers prior to being fixed to the inner region of the rectangular frame 13. The upper surface of the divided planar member 14 e is formed by sandwiching 20 and joining them together. Similarly, the lower divided surface member 14f includes a pair of left and right unit surface members 14c and 14d divided into two at the central portion in the width direction of the inner region of the rectangular frame 13, and the pair of left and right unit surfaces Prior to being fixed to the inner region of the rectangular frame 13, the side members 15c and 15d on the central side, which are disposed opposite to each other, sandwich the vibration control rubber 20 and are joined together. The lower divided surface member 14f is formed.

  In the present embodiment, the reinforcement shock absorbing wall structure 10 as shown in FIG. 1 and FIG. 2 is formed by the method of constructing the reinforcing wall, and the reinforcement shock absorbing wall structure 10 has an axis Inside the rectangular frame 13 formed of a pair of upper and lower horizontal members 11a and 11b and a pair of vertical members 12a and 12b formed as a frame of the wall part of the existing wooden building by the assembling method, the planar member 14 It is a wall structure for reinforcement that reinforces the building by attaching

  As shown in FIG. 1, FIG. 2 and FIG. 4 (a), (b), the planar member 14 is a shape obtained by dividing the inside opening shape of the rectangular frame 13 into four by the vertical dividing line and the horizontal dividing line. The pair of left and right unit plane members 14a and 14b in the upper row are the above-described pair of four unit plane members 14a, 14b, 14c and 14d having a pair of left and right and two upper and lower stages each having a substantially vertically elongated rectangular shape. Thus, the divided side members 15 in the upper row are joined by sandwiching the vibration control rubbers 20 (see FIGS. 7A and 7B) with the side portions 15a and 15b on the central side opposed to each other. 14e are formed, and the outer side portions 16a and 16b are joined and fixed to the inner side surfaces of the vertical members 12a and 12b by using the edge joint metal 22, and the upper sides 17a and 17b are using the edge joint metal 22 Contact with the inner surface (lower surface) of the upper horizontal member 11a. In a fixed state, it is attached to the upper half of the inner rectangular Frame 13.

  As described above, in the lower pair of left and right unit planar members 14c and 14d, the side portions 15c and 15d on the central side, which are disposed opposite to each other, are the vibration control rubber 20 (see FIGS. 7A and 7B) By sandwiching and joining them together to form the upper divided surface member 14e, and the outer side parts 16c, 16d are joined and fixed to the inner side face of the vertical members 12a, 12b using the edge joint metal 22. And the lower side portions 17c and 17d are attached to the inner lower half portion of the rectangular frame 13 with the lower side portions 17c and 17d joined and fixed to the inner side surface (upper surface) of the lower horizontal There is. The lower side portions 18a and 18b of the pair of left and right unit planar members 14a and 14b in the upper stage and the upper side portions 18c and 18d of the pair of left and right unit planar members 14c and 14d in the lower stage via the intermediate portion joint metal 23 It is preferably joined and fixed in a butted state.

Further, in the present embodiment, the joint reinforcing metal members 21 are respectively attached to the side portions 15a, 15b, 15c, 15d on the central side where the unit planar members 14a, 14b, 14c, 14d are disposed opposite to each other. The vibration control rubber 20 is sandwiched between the joint reinforcements 21 (see FIG. 2).

  In the present embodiment, a pair of upper and lower horizontal members 11a and 11b constituting the rectangular frame 13 which is a frame of a wall portion of a building includes a lower frame, an upper frame, a head connection and the like in addition to a base and beams. For example, it is installed using a wooden block. The upper horizontal bridge 11a and the lower horizontal bridge 11b extend in parallel in the horizontal direction with an interval between centers in the height direction of, for example, about 1800 mm to 3500 mm, so that upper and lower short sides of the rectangular frame 13 can be It is formed.

  In the present embodiment, the joining of the end portions of the pair of left and right vertical members 12a and 12b to the upper and lower horizontal members 11a and 11b is performed, for example, by short tenoning, and using drawing hardware or the like as appropriate. The fixed state of the joint is reinforced. Further, in the present embodiment, in the inner region of the rectangular frame 13, one existing brace 31 for reinforcement is diagonally directed from one corner of the upper end of the rectangular frame 13 to the other corner of the lower end. It is installed diagonally in the direction (see FIG. 3). In the present embodiment, the brace 31 is attached to the back side of the rectangular frame 13 (see FIG. 2), thereby leaving the existing brace 31 in the inner region of the rectangular frame 13, from the brace 31. Also in the portion on the front surface side, it is possible to form a reinforcing shock absorbing wall structure 10.

  In the present embodiment, the planar member 14 attached to the inside of the rectangular frame 13 is preferably formed using structural plywood made of cedar material, for example, having a thickness of about 24 mm, and the opening inside the rectangular frame 13. The four unit surface members 14a, 14b, 14c, and 14d having a pair of left and right and two upper and lower stages each having a substantially vertically elongated rectangular shape, which approximates the shape divided into four by the vertical direction dividing line and the horizontal direction dividing line, It is configured by combining.

  The unit planar member 14a constituting the divided planar member 14e of the upper stage, which is disposed on the upper left side of the opening shape inside the rectangular frame 13, viewed from the front side of FIG. 1 is also shown in FIG. Thus, the upper and lower portions of the central side portion 15a opposite to each other except the middle portion in the vertical direction are notched longitudinally, and the vertical direction in the outer side portion 16a The upper half portion is notched longitudinally, and the inside corner of the upper side 17a is notched diagonally, and has a substantially vertically elongated rectangular shape.

  The unit planar member 14b constituting the upper divided surface planar member 14e disposed on the upper right side of the opening shape inside the rectangular frame 13 when viewing FIG. 1 from the front side is also shown in FIG. 4 (a). Thus, the upper and lower portions of the central side portion 15b opposite to each other except the middle portion in the vertical direction are notched longitudinally, and the vertical direction of the outer side portion 16b The upper half portion is notched longitudinally, and the inner corner of the upper side 17b is notched diagonally, and has a substantially vertically elongated rectangular shape.

  The unit planar member 14c constituting the lower divided planar member 14f, which is disposed on the lower left side of the inside opening shape of the rectangular frame 13, seen from the front side of FIG. 1 is also shown in FIG. 4 (a). Thus, the upper portion in the vertical direction of the opposing side portion 15c of the central side is notched vertically, and the lower half of the outer side portion 16c is notched vertically. And has an approximately vertically elongated rectangular shape in which an inner corner portion in the lower side portion 17c is notched obliquely.

  The unit planar member 14d constituting the lower divided planar member 14f, which is disposed on the lower right side of the inner opening shape of the rectangular frame 13, viewed from the front side of FIG. 1 is also shown in FIG. 4 (a). Thus, the upper portion in the vertical direction of the opposing side portion 15d of the central side is notched vertically and the lower half portion of the outer side portion 16d is notched vertically. And has an approximately vertically elongated rectangular shape in which an inner corner portion in the lower side portion 17d is notched obliquely.

  The four unit planar members 14a, 14b, 14c and 14d are formed by using the outer side parts 16a, 16b, 16c and 16d of these members as the inner side surfaces of the vertical members 12a and 12b using the edge joint metal 22. Bonding and fixing the upper side portions 17a and 17b and the lower side portions 17c and 17d to the inner side surface (lower surface) of the upper horizontal member 11a and the inner side surface (upper surface) of the lower horizontal member 11b, Furthermore, the vibration control rubber 20 is disposed between the side portions 15a and 15b on the center side of the upper stage opposed to each other and the side portions 15c and 15d on the center side of the lower stage, preferably with the joining reinforcing metal 21 interposed. While joining in a sandwiched state, the lower side portions 18a and 18b of the unit planar members 14a and 14b of the upper stage and the upper side portions 18c and 18d of the unit planar members 14c and 14d of the lower stage are used Preferably By joining fixed in a state combined came, these as planar member 14 which is integral would be attached to the inside of the rectangular Frame 13.

  Here, the edge joint metal 22 for joining and fixing the unit planar members 14a, 14b, 14c and 14d to the inner side surfaces of the vertical members 12a and 12b and the inner side surfaces of the horizontal members 11b is shown in FIGS. As shown in b), for example, a metal plate having a thickness of about 1 mm, which has been bent so as to have an L-shaped cross-sectional shape, and which has been subjected to a hole forming process can be preferably used. Thus, the metal edge fitting 22 has an L-shaped cross-sectional shape. In the present embodiment, more specifically, for example, a product name "back split corner" (made by Kanesin) can be preferably used as such an edge joint metal member 22.

  In the present embodiment, in the edge joint metal 22, a plurality of driving holes 22c for driving fixing screws, for example, are formed in the long side 22a and the short side 22b of the L-shaped cross-sectional shape. As shown in FIG. 1 and FIG. 2, the long side 22a of the edge joint metal 22 is the side 16a, 16b, 16c, 16d or the upper side 17a of the unit planar members 14a, 14b, 14c, 14d. , 17b and the lower side portions 17c, 17d, with the short side portions 22b being along the inner side surfaces of the vertical members 12a, 12b and the inner side surfaces of the horizontal members 11a, 11b. The divided planar members 14a, 14b, 14c, 14d are formed by driving fixing screws or the like toward the unit planar members 14a, 14b, 14c, 14d, the vertical members 12a, 12b, and the horizontal members 11b, respectively. It can join and fix to the inner surface of perpendicular material 12a, 12b, and the inner surface of horizontal member 11b.

  In the present embodiment, the edge joint metal members 22 are disposed at five locations on each of the side portions 16a and 16b outside the unit planar members 14a and 14b in the upper stage, and the edge joint metal members 22 are disposed outside the unit planar members 14c and 14d in the lower stage. The lateral sides 16a and 16b of the upper unit planar members 14a and 14b and the outer lateral sides 16c of the lower unit planar members 14c and 14d, which are arranged at five locations on each of the lateral sides 16c and 16d. , And 16d, so as to straddle the unit planar members 14a and 14b in the upper stage and the unit planar members 14c and 14d in the lower stage, and are disposed in one place. Further, the edge joint metal members 22 are disposed at two places on the upper side portions 17a and 17b of the unit planar members 14a and 14b at the upper stage, and two at the lower side portions 17c and 17d of the unit planar members 14c and 14d at the lower stage. It is attached in the state where it is arranged at the place.

  The lower sides 18a and 18b of the unit planar members 14a and 14b constituting the upper divided surface member 14e and the upper sides 18c and 18d of the unit planar members 14c and 14d constituting the lower divided surface member 14f As shown in FIGS. 6 (a) and 6 (b), the middle joint metal 23 to be bonded and fixed is, for example, a flat metal plate having a substantially vertical rectangular shape having a thickness of about 0.6 mm, and For example, a plurality of driving holes 23c for driving fixing screws are respectively formed in the both side portions 23a and 23b across the dividing line 23d. Further, the intermediate portion joint metal 23 is provided with a locking claw 23e by forming a concave cut on one side from the dividing line 23d and vertically inflating the inner part of the cut. In the present embodiment, more specifically, for example, the trade name “Fix template” (manufactured by Kanesin) can be preferably used as such an intermediate portion joint metal 23.

  In the present embodiment, after the middle unit joint metal 23 is attached to the inside of the rectangular frame 13 with the four unit plane members 14a, 14b, 14c and 14d, the upper unit plane shape in a preferably butted state is obtained. The unitary planar members 14a, 14b, 14c are inserted into the boundary between the lower sides 18a, 18b of the members 14a, 14b and the upper sides 18c, 18d of the lower unitary planar members 14c, 14d. , 14d, and mounted so as to straddle the lower side portions 18a, 18b of the upper unit planar members 14a, 14b and the upper side portions 18c, 18d of the lower unit planar members 14c, 14d. Thereafter, a fixing screw or the like is driven toward the lower side portions 18a, 18b and the upper side portions 18c, 18d of the unit planar members 14a, 14b, 14c, 14d through the driving holes 23c to form an upper unit plane The lower sides 18a and 18b of the members 14a and 14b and the upper sides 18c and 18d of the lower unit planar members 14c and 14d can be joined and fixed via the intermediate portion joint metal 23, preferably in a state where they abut. It has become.

  The joint reinforcing metal members 21 attached to the central side portions 15a, 15b, 15c, 15d opposite to the unit planar members 14a, 14b, 14c, 14d are unit planar members 14a, 14b, 14c, 14d. A pair of reinforcing frame members 27 is attached to both sides of the front and back sides of the side portions 15a, 15b, 15c, and 15d on the center side (see FIGS. 1 and 2). It is bent so as to have a U-shaped cross-sectional shape along the outer peripheral shape of the attachment site of the joint reinforcing metal 21 and is formed to have a length of, for example, about 300 mm. As shown in FIGS. 7 (a) and 7 (b), the joint reinforcing hardware 21 has a U-shaped cross-sectional shape including a front plate 21a and a pair of side plates 21b. Screw holes 21c are formed. By inserting a fixing screw toward the reinforcing frame member 27 through the screw holes 21c, the joining reinforcing metal member 22 having a U-shaped cross-sectional shape, with the reinforcing frame member 27 interposed, is a divided surface member It can be fixed firmly to one side 15a, 15b, 15c, 15d of one of 14a, 14b, 14c, 14d.

  In the present embodiment, the joint reinforcement hardware 21 is integrated in advance in a state in which the vibration control rubber 20 having a thickness of, for example, about 5 mm is sandwiched between the front plates 21 a of the pair of joint reinforcement hardware 21. A rubber unit 24 is formed. The vibration control rubber unit 24 is formed by joining a pair of reinforcing frame members 27 on both sides of the front and back of the side portions 15a, 15b, 15c, 15d on the central side of the unit planar members 14a, 14b, 14c, 14d. At the attachment site of the reinforcing hardware 21, each of the joint reinforcing hardware 21 on both sides is formed by a pair of central side portions 15a, 15b, 15c, on both sides of the unit planar members 14a, 14b, 14c, 14d disposed opposite to each other. It fixes to unit planar-like member 14a, 14b, 14c, 14d by each fixing to 15d. As a result, as shown in FIG. 1 and FIG. 4 (a), the vibration control rubber 20 is used for the central side portions 15a and 15b in which the pair of left and right unit planar members 14a and 14b in the upper row face each other. While mutually joining in a sandwiched state, the center side portions 15c, 15d of the pair of left and right unit planar members 14c, 14d on the lower side opposed to each other are joined together by sandwiching the damping rubber 20. It is possible to In addition, the upper divided surface member 14e in which the pair of left and right unit surface members 14a and 14b are integrally joined via the vibration control rubber unit 24, and the pair of left and right unit surface members 14c and 14d It becomes possible to form the lower-part divided planar member 14 f joined and integrated via the rubber unit 24.

  The vibration control rubber 20 sandwiched between the central side portions 15a, 15b, 15c, 15d of the unit planar members 14a, 14b, 14c, 14d opposed to each other is known as various rubbers known as vibration control rubbers. It can be formed using a material. The vibration control rubber 20 may preferably be one having a property such that the increase in rigidity reaches a plateau even if the amplitude is increased as described in JP-A-2009-84876.

  Further, in the present embodiment, the middle portion receiving member 19 (see FIG. 3A) is attached to the inner side surface of the middle portion of the pair of vertical members 12a and 12b. The rear side edge portions of the outer side portions 16a, 16b, 16c and 16d of the planar members 14a, 14b, 14c and 14d are in close contact with each other (see FIG. 2).

  The middle portion receiving member 19 is, for example, a 75 mm × 45 mm wooden square, and as shown in FIGS. 1 and 4 (a) and 4 (b), the outer side edges of the unit planar members 14a, 14b, 14c and 14d. It has approximately twice the length of the notched lower half or upper half excluding the notched upper half or lower half in the portions 16a, 16b, 16c, 16d ing. The middle portion receiving member 19 is joined and fixed to the inner side surface of the pair of vertical members 12a and 12b by using the edge joint metal 22, and the notched lower portion of the outer side portions 16a, 16b, 16c and 16d For example, a plurality of fixing screws 19a are screwed from the inside of the rectangular frame 13 toward the pair of vertical members 12a and 12b in the middle portion of the vertical members 12a and 12b where the half portion or the upper half portion is disposed. Thus, they are firmly fixed to the inner side surfaces of the vertical members 12a and 12b.

  When the divided planar member 14e of the upper stage and the divided planar member 14f of the lower stage are fixed to the inner region of the rectangular frame 13 in the middle portion receiver 19 in the construction method of the reinforcing wall of this embodiment, The rear side edge portions of the side portions 16a, 16b, 16c and 16d of the unit planar members 14a and 14b and the lower unit planar members 14c and 14d abut, and the position of the rectangular frame 13 in the depth direction is As a result of the positioning, the rear side edge portions of the outer side portions 16a, 16b, 16c and 16d of the divided planar members 14a, 14b, 14c and 14d are in close contact with each other (see FIG. 2).

  In the present embodiment, as shown in FIGS. 3 (a) to 3 (d), the reinforcing vibration-damping wall structure 10 having the above-described configuration is preferably used indoors, depending on the method of applying the reinforcing wall of the present embodiment. By work, in addition to the ceiling material 25 and the ceiling base material, preferably while leaving the bracing 31, for example, it is formed on the wall 30 of the existing wooden house building by the framework method, and the existing wooden house building is quake-proof It can be reinforced.

  That is, as described above, the method of installing the reinforcing wall according to the present embodiment includes the steps of attaching the middle portion receiving member 19 and fixing the uppermost (upper) divided surface member 14e to the inner region of the rectangular frame 13. And a step of fixing the divided planar member 14f at the lowermost stage (lower stage) to the inner region of the rectangular frame 13, lower side portions 18a and 18b of the divided planar member 14e at the upper stage side, and the divided planar member 14f at the lower stage side. Bonding and fixing the upper side portions 18c and 18d.

  Further, in the present embodiment, as described above, the upper and lower divided planar members 14e and 14f are divided into two at the central portion in the width direction of the inner region of the rectangular frame 13, and a pair of left and right unit planar members A pair of left and right unit planar members 14a and 14b and a pair of left and right unit planar members 14c and 14d are provided prior to the step of fixing the divided planar members 14e and 14f to the inner region of the rectangular frame 13. The pair of unit planar members 14c and 14d and the pair of left and right unit planar members 14c and 14d are integrally joined by sandwiching the vibration control rubber 20 using the vibration control rubber unit 24 described above. The divided planar members 14e and 14f are formed in advance.

  The construction method of the reinforcing wall of the present embodiment is performed with the wall material on the surface side of the wall 30 below the ceiling material 25 and the wall foundation material removed, leaving the ceiling material 25 and the ceiling foundation material left As shown in FIG. 3A, as the step of attaching the middle portion receiving member 19 after removing the wall surface material on the surface side of the wall 30 and the wall base material, as shown in FIG. An intermediate portion support 19 is attached to the inner surface of the intermediate portion 12b for bringing the rear side edge portions of the outer side portions 16a, 16b, 16c and 16d of the divided planar members 14e and 14f into contact. The middle portion receiving member 19 is joined and fixed to the inner side surface of the pair of vertical members 12a and 12b by using the edge joint metal 22. The outer side portions 16a, 16b, 16c, of the divided planar members 14e and 14f. A plurality of fixing screws 19a, for example, from the inside of the rectangular frame 13 toward the pair of vertical members 12a and 12b in an intermediate portion where the lower half portion or the upper half portion 16d is not cut out are arranged, for example By screwing in, it can be firmly fixed to the inner surface of the vertical members 12a and 12b.

  As shown in FIG. 3B, the vibration control rubber unit 24 and the reinforcing frame member 27 are interposed as a step of fixing the divided planar member 14e of the uppermost stage (upper stage) after the middle portion receiving member 19 is attached. A divided planar member 14e composed of a pair of unit planar members 14a and 14b in the upper stage having the same lateral width as the lateral width of the inner region of the rectangular frame 13 joined and integrated, the side portions 16a, The outer side edge portions 16a and 16b are joined to the edge joint metal member 22 in a state where the position in the depth direction of the rectangular frame 13 is positioned by bringing the back side edge portion of the 16b into contact with the middle portion receiving member 19 The rectangular frame 13 is formed by joining the upper side portions 17a and 17b to the inner side surface (lower surface) of the upper horizontal member 11a using the edge joint metal 22 while using the outer side members 17a and 17b to connect to the inner side surfaces of the vertical members 12a and 12b. Fixed to the inner area of That.

  As shown in FIG. 3C, the vibration control rubber unit 24 and the reinforcing frame are fixed as a step of fixing the divided planar member 14f of the lowermost stage (lower stage) after the divided planar member 14e of the uppermost stage (upper stage) is fixed. A divided planar member 14f consisting of a pair of unit planar members 14c and 14d in the lower stage having the same lateral width as the lateral width of the inner region of the rectangular frame 13 joined and integrated by interposing the material 27 In the state where the position in the depth direction of the rectangular frame 13 is positioned by bringing the back side edge portions of the side portions 16c and 16d into contact with the middle portion receiving member 19, the outer side portions 16c and 16d are The lower side portions 17c and 17d are joined to the inner side surface (lower surface) of the upper cross member 11a by using the edge joint metal 22 while joining to the inner side surfaces of the vertical members 12a and 12b using the edge joint metal 22 By the rectangular frame 13 It is fixed to the inner region.

  After the divided planar member 14e of the uppermost stage (upper stage) is fixed, lower sides 18a and 18b by the unit planar members 14a and 14b of the divided planar member 14e on the upper stage side adjacent in the vertical direction and the divided lower stage The seismic resistance bearing wall structure 10 for reinforcement is formed by joining and fixing the upper side portions 18c and 18d of the planar member 14f to the upper side portions 18c and 18d of the planar members 14c and 14d in a preferably butted state via the intermediate portion joint metal 23. Can be formed.

  Here, one side portion 15a, 15b oppositely disposed of the pair of left and right divided planar members 14a, 14b in the upper stage, and one side oppositely disposed of the pair of left and right divided planar members 14c, 14d in the lower stage. The side portions 15c and 15d are notched longitudinally except for a portion to which the joining reinforcing hardware 21 and the reinforcing frame member 27 of the vibration control rubber unit 24 are attached, and thereby the upper planar divided surface members 14a and 14b are formed. A space is maintained between a portion to which the joint reinforcing metal 21 and the reinforcing frame 27 are attached and a portion to which the joint reinforcing metal 21 and the reinforcing frame 27 of the divided planar members 14c and 14d in the lower stage are attached. (Refer FIG.7 (c), (d)). By passing the existing bracing 31 through this space portion, even if the portion to which the joint reinforcing hardware 21 and the reinforcing frame member 27 are attached has a considerable thickness, without causing any interference with the existing bracing 31, It becomes possible to attach the upper divided surface members 14a and 14b and the lower divided surface members 14c and 14d.

  Further, upper half portions of the other side portions 16a and 16b of the pair of left and right divided planar members 14a and 14b in the upper stage and the other side portions 16c and 16d of the lower paired left and right divided planar members 14c and 14d. And the lower half portion of the upper half of the upper part of the divided planar members 14a and 14b, and the lower part of the lower planar parts of the upper horizontal members 11a and the vertical members 12a and 12b. In the corner portions between the lower horizontal members 11b and the vertical members 12a and 12b of the members 14c and 14d, longitudinally spaced portions are formed along the inner side surfaces of the vertical members 12a and 12b (FIG. 7 (c ) And (d)). As a result, a joint metal such as a pulling metal is disposed at the corner of the upper horizontal member 11a and the vertical members 12a and 12b or at the lower corner of the horizontal member 11b and the vertical members 12a and 12b. Even in this case, it is possible to attach the upper divided surface members 14a and 14b and the lower divided surface members 14c and 14d without causing interference with these bonding hardware.

  After forming the reinforcement shock absorbing wall structure 10, the wall 30 provided with the reinforcement shock absorbing wall structure 10 covers the surface side from which the wall material and the wall base material are removed, and the surface is made of gypsum board etc. Attach the side wall base material, attach the wall finishing wall material, and reattach the floor board base material and floor material that were removed if necessary, earthquake-proof the existing wooden house building wall 30 Finish the work to reinforce.

  And according to the construction method of the reinforcing wall of this embodiment provided with the above-mentioned structure, the wall member 30 of the existing wooden building can be formed into a planar member by a simple operation while leaving the ceiling material 25 and the ceiling base material. It becomes possible to use 14 effectively for seismic reinforcement.

  That is, in the method of installing the reinforcing wall according to the present embodiment, the back side edge of the side portion 16a, 16b, 16c, 16d of the divided planar members 14e, 14f is provided on the inner side surface of the middle portion of the pair of vertical members 12a, 12b. The process of attaching the middle portion receiving member 19 for bringing the portions into contact with each other, the divided planar member 14e of the uppermost (upper) stage, and the back side edge portions of the side portions 16a and 16b on both sides are the middle portion receiving member 19 While the position of the rectangular frame 13 in the depth direction is positioned, the side portions 16a and 16b are joined to the inner side surfaces of the vertical members 12a and 12b using the edge joint metal 22. Securing the upper side portions 17a and 17b to the inner region of the rectangular frame 13 by joining the upper side portions 17a and 17b to the inner side surface (lower surface) of the upper horizontal member 11a using the edge joint metal 22; Split surface member 14f The rear side edge portions of the side portions 16c and 16d on both sides are brought into contact with the intermediate portion receiving member 19 to position each position of the rectangular frame 13 in the depth direction, The lower side portions 17c and 17d are joined to the inner side surface (upper surface) of the lower cross member 11b by using the edge joint metal 22 while joining to the inner side surfaces of the vertical members 12a and 12b using the edge joint metal 22 Thus, the step of fixing to the inner region of the rectangular frame 13, the lower side portions 18a and 18b of the upper divided side planar members 14e adjacent in the vertical direction, and the upper side portions 18c and 18d of the lower side divided planar members 14f. And the step of bonding and fixing the intermediate portion joint metal 23.

  Thereby, according to the present embodiment, when fixing the pair of divided planar members 14e in the upper stage to the inner region of the rectangular frame 13, the divided surfaces in which the edge joint metal 22 is attached to the upper side portions 17a and 17b. The upper end portion of the end member 14e is inserted into the ceiling pocket portion 26 so that the upper side portions 17a and 17b abut on the inner side surface of the upper cross member 11a together with the short side portion 22b of the edge joint metal 22 Since the split planar members 14a and 14b are joined and fixed to the inner side surface of the cross member 11ab by driving fixing screws or the like into the driving holes 22c of the short side portion 22b, the ceiling material and the base material for ceiling are left. It becomes possible to easily fix the upper divided surface member 14e to the inner region of the rectangular frame 13 by the above operation.

  Here, the work of driving a fixing screw or the like into the through hole 22c provided in the short side 22b of the edge joint metal 22 attached to the upper side 17a, 17b of the upper part of the divided planar member 14e 26 work in a narrow space, but, for example, by using a screw driving apparatus using an L-shaped bit or a long bit, in such a narrow space, it is directed to the inner surface of the upper horizontal member 11a. This makes it possible to easily carry out an operation of driving a fixing screw or the like into the driving hole 22c of the short side 22b of the edge joint metal 22.

  Further, according to the present embodiment, the planar member 14 includes the pair of divided planar members 14a and 14b constituting the divided planar member 14e in the upper stage and the pair of divided surfaces constituting the divided planar member 14f in the lower stage. The vibration control rubber 20 is sandwiched between the annular members 14c and 14d, and the other side portions 16a, 16b, 16c and 16d, the upper side portions 17a and 17b and the lower side portions 17c and 17d Since it is attached to substantially the entire inside region of the rectangular frame 13 in a state of being bonded and fixed to the inner side surface of the vertical members 12a and 12b and the upper and lower horizontal members 11a and 11b using Desired control performance while exhibiting the same function as that of the seismic control wall structure described in 2009-84876, preferably while securing a short-term reference strength of 0.9 to 14.0 kN / m. Already to be able to Of the wall 30 of the building of the wooden, effectively it makes it possible to seismic reinforcement.

  The present invention is not limited to the above embodiment, and various modifications can be made. For example, the planar member does not necessarily have to be a two-stage divided planar member obtained by dividing the inner region of the rectangular frame in the vertical direction, and may be divided into three or more stages. In the case where the reinforcing wall is divided into three or more steps, the method of installing a reinforcing wall according to the present invention includes one or more intermediate portions between the uppermost divided surface member and the lowermost divided surface member. In the state where the position in the depth direction of the rectangular frame is positioned by bringing the back side edge portions of the side portions on both sides into contact with the middle portion receiving member, each side portion is an edge portion By bonding to the inner surface of the vertical member using a metal joint, it can be configured to include the step of fixing to the inner region of the rectangular frame.

  In addition, the divided planar members are formed by a pair of left and right unit planar members that form the divided planar members by sandwiching vibration damping rubber on one side portions of the oppositely disposed side members. It does not necessarily have to be one, and it may be made of one sheet-like member. Furthermore, it is not necessary to form a divided planar member by attaching a joint reinforcing hardware or a seismic rubber unit that sandwiches the damping rubber on one side of the unit planar member oppositely disposed.

DESCRIPTION OF REFERENCE NUMERALS 10 reinforcement seismically resistant load-bearing wall structure 11a, 11b horizontal frame member 12a, 12b vertical member 13 rectangular frame 14 planar members 14a, 14b, 14c, 14d unit planar members 14e, 14f divided planar members 15a, 15b, 15c, 15d one side 16a, 16b, 16c, 16d the other side 17a, 17b upper side 17c, 17d lower side 18a, 18b lower side 18c, 18d upper side 19 middle part support member 20 damping rubber 21 joint reinforcement Hardware 22 Edge joint metal 22a Long side 22b Short side 22c Driven hole 23 Middle joint metal 23a, 23b Both side portion 23c Driven hole 23d Divided line 23e Locking claw 24 Damping rubber unit 25 Ceiling material 26 Ceiling space 27 Reinforcement frame 30 Wall 31 Bracing

Claims (5)

Construction of reinforcement wall which attaches plane-like member in the inside of rectangular frame which consists of upper and lower horizontal cross members and left and right vertical members formed as frame of wall of existing wooden building and reinforces the building by earthquake resistance Method,
The wall surface material on the surface side of the wall below the ceiling material and the wall foundation material are removed, and the construction is performed with the ceiling material and ceiling foundation material remaining.
The planar member is attached to an inner region of the rectangular frame surrounded by a pair of vertical members and a pair of horizontal members in the vertical direction, and has the same horizontal width as the inner region of the rectangular frame in the vertical direction It consists of at least two stages of divided planar members divided,
Attaching an intermediate portion receiving member for bringing the rear side edge portion of the side portion of the divided planar member into contact with the inner side surface of the intermediate portion of the pair of vertical members;
In the state where the position in the depth direction of the rectangular frame is positioned by bringing the rear side edge portions of the side portions on both sides into contact with the middle portion receiving member, the divided planar members on the top step are positioned on each side The inner side of the rectangular frame is joined by joining the side to the inner surface of the vertical member using an edge joint metal and joining the upper side to the inner side of the upper cross member using an edge joint metal. Fixing to the area;
The position of the rectangular frame in the depth direction is determined by bringing the lower planar divided surface members into contact with the middle portion receiving members by bringing the back side edge portions of the side portions on both sides into contact with each other. The inner side of the rectangular frame is joined by joining the side to the inner surface of the vertical member using an edge joint metal and bonding the lower side to the inner side of the lower cross member using an edge joint metal. Fixing to the area;
Construction of a reinforcing wall including the step of joining and fixing the lower side of the divided planar member on the upper side adjacent to the upper and lower direction and the upper side of the divided planar member on the lower side via an intermediate joint metal part Method.   The divided planar member of one or more middle portions between the uppermost divided surface member and the lowermost divided surface member, and the back side edge portions of the side portions on both sides By connecting each side edge portion to the inner side surface of the vertical member using an edge joint metal in a state in which the position in the depth direction of the rectangular frame is positioned by contacting the middle portion receiving member, The method according to claim 1, further comprising the step of fixing the inner side area of the rectangular frame.   The method according to claim 1 or 2, wherein the edge joint metal is a metal having an L-shaped cross-sectional portion, and the intermediate joint metal is a metal having a flat plate shape.   The divided planar member includes a pair of left and right unit planar members divided into two at a central portion in the width direction of the inner region of the rectangular frame, and the pair of left and right unit planar members is the rectangular frame Before being fixed to the inner region of the above-mentioned, the divided side members are formed by sandwiching vibration damping rubbers on one side portions opposite to each other and joining them together. The construction method of the reinforcement wall of any one of 3. 5. The reinforcing wall according to claim 4, wherein a joint reinforcing metal is attached to one side of the divided planar member facing each other, and the vibration control rubber is sandwiched between the joint reinforcing metal . Construction method.

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