JP5891982B2

JP5891982B2 - Bearing wall joint structure

Info

Publication number: JP5891982B2
Application number: JP2012155425A
Authority: JP
Inventors: 田中　浩史; 浩史田中; 河合　良道; 良道河合; 藤内　繁明; 繁明藤内
Original assignee: Nippon Steel Corp
Current assignee: Nippon Steel Corp
Priority date: 2012-07-11
Filing date: 2012-07-11
Publication date: 2016-03-23
Anticipated expiration: 2032-07-11
Also published as: JP2014015804A

Description

本発明は、壁パネルからなる耐力壁を使用する建物、特に、スチールハウスの建物における耐力壁の接合構造及び接合金物に関する。 The present invention relates to a joint structure and joint hardware of a load bearing wall in a building using a load bearing wall composed of wall panels, in particular, a steel house building.

従来、スチ−ルハウスにおける耐力壁としての壁パネルとして、薄鋼板を凹溝状に折り曲げ加工されて形成された横断面リップ付溝形の一対の溝形鋼のウェブを背中合わせに配置した縦枠材を間隔をおいて配置すると共に、それらの上下部を、薄鋼板を凹溝状に折り曲げ加工されて形成された断面溝形の上横枠材と下横枠材により連結されると共に、これらの側面の片面又は両面に、ビス又はドリルねじ等の固着具により固定される薄鋼板等の構造用面材とを備えた壁パネルが知られている（例えば、特許文献１参照）。 Conventionally, as a wall panel as a load-bearing wall in a steel house, a vertical frame member in which a pair of grooved steel webs having a cross-sectional lip shape formed by bending a thin steel plate into a concave groove shape is arranged back to back. Are arranged at intervals, and the upper and lower portions thereof are connected by an upper horizontal frame member and a lower horizontal frame member having a cross-sectional groove shape formed by bending a thin steel plate into a concave groove shape. 2. Description of the Related Art A wall panel including a structural surface material such as a thin steel plate that is fixed to one side or both sides of a side surface by a fastener such as a screw or a drill screw is known (for example, see Patent Document 1).

図１３〜図１５に示すように、前記従来の縦枠材３０のウェブ３１は、一対の横断面リップ付き溝形鋼３２を背中合わせに配置して形成している。そして、一つの上下方向のボルト１に両側に張り出すように接合用フランジ３３を有する側方開口溝形断面の接合金物３４の溝を嵌合すると共に、接合用フランジ３３の上下両端部を前記ボルト１にねじ込まれた上下一対の圧着用雌ねじ部材３５により位置固定可能に装着している。さらに、前記縦枠材３０のウェブ３１を壁厚方向に配置すると共にその中央部にボルト１の中心軸線を合わせるように配置し、前記接合金物３４の左右両側の接合用フランジ３３を前記縦枠材３０のウェブ３１の幅方向両側に配置して、多数のドリルねじ３６により接合するようにした壁パネル３７の構造が知られている。 As shown in FIGS. 13 to 15, the web 31 of the conventional vertical frame member 30 is formed by arranging a pair of cross-section grooved steel 32 with lip back to back. And the groove | channel of the joint metal fitting 34 of the side opening groove shape cross section which has the flange 33 for joining so that it may protrude on both sides to the one bolt 1 of an up-down direction is fitted, and the upper-and-lower-ends part of the flange 33 for joining is said A pair of upper and lower crimping female screw members 35 screwed into the bolt 1 are mounted so that the position can be fixed. Furthermore, the web 31 of the vertical frame member 30 is arranged in the wall thickness direction and arranged so that the central axis of the bolt 1 is aligned with the central portion thereof, and the joining flanges 33 on both the left and right sides of the metal fitting 34 are arranged in the vertical frame. A structure of a wall panel 37 arranged on both sides in the width direction of the web 31 of the material 30 and joined by a number of drill screws 36 is known.

また、従来、図１５、図１６に示すように、一対のリップ付き溝形鋼３２のウェブ３１を背中合わせとした縦枠材３０に、一つのホールダウン金物３８における接合用プレート３９を、前記ウェブ３１の部分に重ね合わせるように配置して、ウェブ３１中央部付近に配設した多数のドリルねじ３６により、ホールダウン金物３８と縦枠材３０とを接合するようにした壁パネル３７の構造も知られている（例えば、特許文献２参照）。 Conventionally, as shown in FIGS. 15 and 16, a bonding plate 39 in one hole-down hardware 38 is attached to a vertical frame member 30 having a pair of lip-shaped grooved steel 32 webs 31 back to back. The wall panel 37 has a structure in which the hole-down metal member 38 and the vertical frame member 30 are joined to each other by a large number of drill screws 36 disposed near the center of the web 31 so as to overlap the portion 31. It is known (see, for example, Patent Document 2).

特開２００５−３２０８６０号公報JP 2005-320860 A 特開２００５−２４８５２９号公報JP 2005-248529 A

図１２に示すように、地震時或いは風荷重等の水平力Ｑが建物に作用した場合には、基礎１０と建物の１階の壁パネルからなる耐力壁２との定着部、或いは各階の耐力壁における下階側と上階側の接合部には、地震時等において引張力（引抜き力）Ｔ及び圧縮力（押し込み力）Ｃが作用する。 As shown in FIG. 12, when a horizontal force Q such as a wind load acts on the building during an earthquake, the anchoring portion between the foundation 10 and the load-bearing wall 2 composed of the first floor wall panel of the building, or the strength of each floor. A tensile force (pull-out force) T and a compressive force (push-in force) C act on the joint between the lower floor side and the upper floor side of the wall during an earthquake or the like.

前記各従来技術の場合は、水平方向の横断面において、形鋼のウェブ３１に、一つの接合金物３４又はホールダウン金物３８と、一つのボルト１又はアンカーボルト１を配置する設計形態とされているため、高強度化が困難であるという問題がある。 In the case of each of the prior arts described above, in a horizontal cross section, a single metal fitting 34 or a hole-down metal piece 38 and one bolt 1 or anchor bolt 1 are arranged on a shaped steel web 31. Therefore, there is a problem that it is difficult to increase the strength.

前記のような一つのボルト又はアンカーボルトと一つの接合金物或いはホールダウン金物を用いた壁パネルを、基礎又は上階の壁パネルに接合する接合構造としたスチールハウス等の建物がある。このような建物に対して、地震時に水平力Ｑが作用した場合には、前記引張力Ｔに抵抗する構造として、図１６に示す従来の構造では、ホールダウン金物３８における接合用プレート３９を縦枠材３０のウェブ３１に止める構造であり、しかも、水平な横断面において、縦枠材３０内に一つのホールダウン金物３８しか配置することができない構造であるため、建物の水平方向の大型化、或いは３階、４階と階層が増した場合には、引抜き力も大きくなることから、図１７に示すように、引張力Ｔが作用した場合に、リップ付き溝形鋼３２のウェブ３１の面外曲げ変形Ｓによりホールダウン金物３８が矢印Ｍで示す方向に回転し、ドリルねじ３６が抜け出す恐れがあるという問題があった。そのため、建物の水平方向の大型化或いは階層が増した場合にも十分対応可能な高強度の接合構造が求められていた。 There is a building such as a steel house having a joint structure in which a wall panel using one bolt or anchor bolt and one joint metal or hole-down metal is joined to a wall panel on a foundation or an upper floor. When a horizontal force Q acts on such a building during an earthquake, as a structure that resists the tensile force T, the conventional structure shown in FIG. Since it is a structure that stops on the web 31 of the frame member 30 and that only one hole-down hardware 38 can be arranged in the vertical frame member 30 in a horizontal cross section, the size of the building in the horizontal direction is increased. Alternatively, when the number of floors is increased to the third floor and the fourth floor, the pulling force also increases. Therefore, when the tensile force T is applied as shown in FIG. There is a problem that the hole-down metal piece 38 rotates in the direction indicated by the arrow M due to the outer bending deformation S, and the drill screw 36 may come off. Therefore, there has been a demand for a high-strength joint structure that can sufficiently cope with an increase in the size of a building in the horizontal direction or the number of floors.

前記のような高強度の接合構造とするには、従来の構造では困難であることから、耐力壁における縦枠材の壁厚幅寸法内において、アンカーボルト又はボルトを如何に設置するか、また、設置されたアンカーボルト又はボルトにより荷重を分担できる構造であることが必要になるとの知見を得て、種々研究した結果、本発明を完成した。 Since it is difficult to achieve a high-strength joint structure as described above, the anchor bolt or the bolt is installed within the wall thickness width dimension of the vertical frame member in the bearing wall. The present invention has been completed as a result of various researches by obtaining knowledge that it is necessary to have a structure capable of sharing a load with installed anchor bolts or bolts.

また、好ましくは縦枠材側のウェブの面外曲げによる接合金物の回転を防止する接合構造とすることで、耐力壁を高強度接合とする場合に有利になる知見を得て、種々研究した結果、本発明を完成した。 In addition, by making a joint structure that preferably prevents the rotation of the joint hardware due to the out-of-plane bending of the web on the vertical frame material side, we obtained knowledge that would be advantageous when making the bearing wall high-strength joint, and made various studies As a result, the present invention was completed.

本発明は、溝形断面の縦枠材のウェブの曲げ変形を解消可能で、高強度化が可能な壁パネルの接合構造及びその構造に用いる接合金物を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a wall panel joining structure capable of eliminating bending deformation of a web of a vertical frame member having a groove-shaped cross section and capable of increasing strength, and a joining metal fitting used in the structure.

第１発明の耐力壁の接合構造では、耐力壁の縦枠材に薄板軽量形鋼を用いて、アンカーボルト又はボルトと縦枠材とを接合金物を介して固定した耐力壁の接合構造において、前記耐力壁の少なくとも片面に取り付けられる構造用面材と直交する壁厚方向に、アンカーボルト又はボルトを複数配置して、前記接合金物は、水平断面形状が壁厚方向に長辺を有する長方形である筒状体を備えており、縦枠材における短辺側の対向するフランジ内側面に前記長方形の筒状体の短辺側が重合するように配置され、前記接合金物の各短辺と前記縦枠材の各フランジとがそれぞれねじ止めされて、前記アンカーボルト又はボルトを収納配置する内側筒状体を複数備え、その内側筒状体は、前記長方形の筒状体の内側において壁厚方向に間隔をおいて中央寄りに、複数対称に配置されていると共に前記長方形の筒状体に固定されていることを特徴とする。 In the joint structure of the load-bearing walls of the first invention, in the joint structure of the load-bearing walls in which the thin bolt lightweight steel is used for the vertical frame member of the load-bearing wall, and the anchor bolt or the bolt and the vertical frame member are fixed via the joint hardware, A plurality of anchor bolts or bolts are arranged in the wall thickness direction orthogonal to the structural face material attached to at least one side of the load bearing wall, and the joint hardware is a rectangle whose horizontal cross-sectional shape has a long side in the wall thickness direction. A cylindrical body, arranged so that the short side of the rectangular cylindrical body overlaps with the flange inner surface facing the short side of the vertical frame member, and the short side of the joint metal and the vertical side Each flange of the frame member is screwed to each other, and includes a plurality of inner cylindrical bodies that house and arrange the anchor bolts or bolts, and the inner cylindrical body extends in the wall thickness direction inside the rectangular cylindrical body. Centered at intervals In, characterized in that it is fixed to the cylindrical body of said rectangle together are arranged in a plurality of symmetry.

また、第２発明では、第１発明の耐力壁の接合構造において、前記接合金物の降伏耐力は、前記複数のアンカーボルト及びボルトの降伏耐力よりも低く、かつ前記接合金物は、耐力を保持しながら変形可能にされていることを特徴とする。 In the second invention, in the joint structure of the bearing walls of the first invention, the yield strength of the joint hardware is lower than the yield strength of the plurality of anchor bolts and bolts, and the joint hardware maintains the yield strength. However, it can be deformed .

第３発明では、耐力壁の縦枠材に薄板軽量形鋼を用いて、アンカーボルト又はボルトと縦枠材とを接合金物を介して固定した耐力壁の接合構造において、前記耐力壁の少なくとも片面に取り付けられる構造用面材と直交する壁厚方向に、アンカーボルト又はボルトを複数配置して、前記接合金物は、前記耐力壁の下方から上方に渡って、壁厚方向に複数並列して配置された溝形部材により形成されるウェブと、それぞれの前記溝形部材の上端及び下端に、上下方向に貫通するボルト挿通孔を有する接合用フランジとを備え、前記接合金物のウェブが前記縦枠材のウェブに重合させてねじ接合され、前記接合用フランジが壁厚方向に配置された複数のアンカーボルト又はボルトにより連結されることを特徴とする。 In the third aspect of the invention, in the structure of the load bearing wall in which the anchor bolt or the bolt and the vertical frame member are fixed via the joint hardware using a thin lightweight steel for the vertical frame material of the load bearing wall, at least one surface of the load bearing wall is provided. A plurality of anchor bolts or bolts are arranged in the wall thickness direction orthogonal to the structural surface material attached to the structural face material, and the joint hardware is arranged in parallel in the wall thickness direction from the lower side to the upper side of the load bearing wall. Webs formed by the groove-shaped members formed, and joining flanges having bolt insertion holes penetrating in the vertical direction at the upper and lower ends of the respective groove-shaped members, and the web of the joint hardware is the vertical frame It is characterized by being superposed on a web of material and screw-joined, and the joining flange is connected by a plurality of anchor bolts or bolts arranged in the wall thickness direction .

第１発明によると、耐力壁の縦枠材に薄板軽量形鋼を用いて、アンカーボルト又はボルトと縦枠材とを接合金物を介して固定した耐力壁の接合構造において、前記耐力壁の少なくとも片面に取り付けられる構造用面材と直交する壁厚方向に、アンカーボルト又はボルトを複数配置したので、簡単な構造で、耐力壁の高強度接合を可能にすることができる等の効果が得られる。 According to the first aspect of the present invention, in the joining structure of the bearing walls in which the thin bolts are used for the longitudinal frame member of the bearing wall, and the anchor bolt or the bolt and the longitudinal frame member are fixed via the joining hardware, at least the bearing wall is provided. Since a plurality of anchor bolts or bolts are arranged in the wall thickness direction orthogonal to the structural face material attached to one side, effects such as enabling a high-strength joining of the bearing walls with a simple structure can be obtained. .

また、第１発明によると、前記接合金物は、水平断面形状が壁厚方向に長辺を有する長方形である筒状体を備えており、縦枠材における短辺側の対向するフランジ内側面に前記長方形の筒状体の短辺側が重合するように配置され、前記接合金物の各短辺と前記縦枠材の各フランジとがそれぞれねじ止めされているので、接合金物のウェブと縦枠材のウェブとが接合されておらず、縦枠材のウェブが面外方向に曲げ変形するのを防止することができ、また、接合金物のフランジが壁厚方向の両側に配置され、縦枠材のフランジが壁厚方向の両側に配置され、各フランジを短辺として重合されてねじ接合されているので、接合金物の壁厚方向の両端は拘束されることで、ねじが抜け出すことはない等の効果が得られる。 Further, according to the first invention, before Symbol joining hardware includes a a rectangle horizontal cross-sectional shape having a long side in the wall thickness direction cylindrical member, flange inner surface facing the short side of the vertical frame members Are arranged so that the short side of the rectangular cylindrical body overlaps, and the short sides of the joint metal and the flanges of the vertical frame member are respectively screwed, so that the web of the joint metal and the vertical frame It is possible to prevent the web of the vertical frame material from being bent and deformed in the out-of-plane direction, and the flanges of the joint hardware are arranged on both sides in the wall thickness direction. Since the flanges of the material are arranged on both sides in the wall thickness direction, and each flange is superposed on the short side and screwed together, both ends of the metal fitting in the wall thickness direction are constrained so that the screws do not come out. Etc. are obtained.

第２発明によると、前記接合金物の降伏耐力は、前記複数のアンカーボルト及びボルトの降伏耐力よりも低く、かつ前記接合金物は、耐力を保持しながら変形可能にされているので、地震エネルギーを効率的に吸収することができる等の効果が得られる。 According to the second invention, the yield strength of prior SL joint fittings, the lower than the yield strength of a plurality of anchor bolts and bolts, and the joint fittings, since it is deformable while retaining the strength, seismic energy Can be effectively absorbed.

第１発明の耐力壁の接合構造に用いる接合金物によると、前記接合金物は、前記アンカーボルト又はボルトを収納配置する内側筒状体を複数備え、その内側筒状体は、前記長方形の筒状体の内側において壁厚方向に間隔をおいて複数配置されていると共に前記長方形の筒状体に固定されているので、簡単な構造の接合金物により、縦枠材のウェブに接合することなく、縦枠材のフランジに接合することができ、しかもアンカーボルト又はボルトに固定可能な接合金物とすることができる等の効果が得られる。 According to joining hardware to be used for joining the structure of the bearing walls of the first invention, before Symbol joining hardware includes a plurality of inner tubular body to the anchor bolt or housing disposed bolts, its inner tubular member, the cylinder of the rectangular Since a plurality of pieces are arranged at intervals in the wall thickness direction on the inner side of the body and are fixed to the rectangular tubular body, it is possible to join the web of the vertical frame member with a simple structure joint hardware. In addition, it is possible to obtain an effect that it can be joined to the flange of the vertical frame member and can be an anchor bolt or a joint metal that can be fixed to the bolt.

第３発明によると、前記接合金物は、前記耐力壁の下方から上方に渡って設けられるウェブと、当該ウェブの上端及び下端に設けられる接合用フランジとを備え、前記接合金物のウェブが前記縦枠材のウェブに重合させてねじ接合され、前記接合用フランジが壁厚方向に配置された複数のアンカーボルト又はボルトにより連結されるので、接合金物自体で縦枠材におけるウェブの面外変形に伴う回転を止めることができ、また、接合金物で圧縮力及び引張力の軸力を負担することができる等の効果が得られる。 According to a third aspect of the present invention, before Symbol joining hardware includes a web provided over upwardly from below said bearing wall, and a joining flange provided on the upper and lower ends of the web, the web of the joining hardware the Since it is superposed on the web of the vertical frame material and screw-joined, and the connecting flange is connected by a plurality of anchor bolts or bolts arranged in the wall thickness direction, the out-of-plane deformation of the web in the vertical frame material with the joining hardware itself In addition, it is possible to stop the rotation accompanying the above, and it is possible to obtain an effect that the joint metal can bear the axial force of the compression force and the tensile force.

第３発明の耐力壁の接合構造に用いる接合金物によると、前記接合金物は、前記耐力壁の下方から上方に渡って、壁厚方向に複数並列して配置された溝形部材により形成されるウェブと、それぞれの前記溝形部材の上端及び下端に、上下方向に貫通するボルト挿通孔を有する接合用フランジとを備えているので、上階側の接合金物と下階側の接合金物をボルト・ナット等により容易に連結して、接合金物自体で縦枠材側のウェブの面外曲げ変形を起こそうとした場合に作用する、回転を止めることができる等の効果が得られる。 According to joining hardware to be used for joining the structure of the bearing walls of the third aspect of the present invention, before Symbol joining hardware is over upwardly from below the bearing wall, it is formed by channel members which are arranged a plurality of parallel wall-thickness direction And a flange for joining having bolt insertion holes penetrating in the vertical direction at the upper end and the lower end of each of the channel members, so that the upper floor side joint hardware and the lower floor side joint hardware are It can be easily connected with bolts, nuts, etc., and effects such as stopping rotation can be obtained which acts when an out-of-plane bending deformation of the web on the vertical frame member side is caused by the joining hardware itself.

本発明の第１実施形態の壁パネルの接合構造を示す横断平面図である。It is a cross-sectional top view which shows the joining structure of the wall panel of 1st Embodiment of this invention. 図１に示す壁パネルの接合構造の一部を省略して示す正面図である。It is a front view which abbreviate | omits and shows a part of joining structure of the wall panel shown in FIG. 第１実施形態の壁パネルからなる耐力壁を示すものであって、（ａ）は側面図、（ｂ）は断面図である。The load-bearing wall which consists of a wall panel of 1st Embodiment is shown, Comprising: (a) is a side view, (b) is sectional drawing. 本発明の第２実施形態の壁パネルの接合構造を示す横断平面図である。It is a cross-sectional top view which shows the joining structure of the wall panel of 2nd Embodiment of this invention. 図４に示す壁パネルの接合構造のａ−ａ線断面図である。It is the sectional view on the aa line of the joining structure of the wall panel shown in FIG. 図４に示す壁パネルの接合構造の室外側からの側面図である。It is a side view from the outdoor side of the joining structure of the wall panel shown in FIG. 図４におけるアンカーボルト付近で切断した横断平面図である。It is the cross-sectional top view cut | disconnected in the anchor bolt vicinity in FIG. 第２実施形態の壁パネルからなる耐力壁を示すものであって、（ａ）は側面図、（ｂ）は断面図である。The load-bearing wall which consists of a wall panel of 2nd Embodiment is shown, Comprising: (a) is a side view, (b) is sectional drawing. 端根太又は側根太を挟んで上下に隣り合う壁パネルからなる耐力壁における縦枠材を接合する場合における接合構造の概略図である。It is the schematic of the joining structure in the case of joining the vertical frame material in the bearing wall which consists of a wall panel adjacent up and down across an end joist or a side joist. （ａ）は本発明の第３実施形態の壁パネルの接合構造を示す縦断側面図、（ｂ）はその横断平面図である。(A) is the vertical side view which shows the joining structure of the wall panel of 3rd Embodiment of this invention, (b) is the cross-sectional plan view. 第３実施形態の壁パネルからなる耐力壁を示すものであって、（ａ）は側面図、（ｂ）は断面図である。The load-bearing wall which consists of a wall panel of 3rd Embodiment is shown, Comprising: (a) is a side view, (b) is sectional drawing. 建物に水平力が作用した場合に引抜き力（引張力）及び押し込み力（圧縮力）が作用することを説明するための図である。It is a figure for demonstrating that drawing force (tensile force) and pushing force (compression force) act when a horizontal force acts on a building. 従来の上階側の耐力壁の縦枠材と下階側の耐力壁の縦枠材とを１本のボルトとその上下部に位置固定可能に装着された側方開口溝形断面の接合金物により接合した縦断側面図である。A conventional joint with a side-opening groove-shaped cross section in which the vertical frame material of the load-bearing wall on the upper floor side and the vertical frame material of the load-bearing wall on the lower floor side are mounted so that the position of the bolt can be fixed to the upper and lower parts thereof. It is the vertical side view joined by this. 図１３に示す接合構造における横断平面図を示し、（ａ）はボルトにねじ込まれた雌ねじ部材付近の横断平面図、（ｂ）はボルトに装着された座金付近の横断平面図、（ｃ）は側方開口溝形断面の接合金物付近の横断平面図である。13A and 13B are cross-sectional plan views of the joint structure shown in FIG. 13, in which FIG. 13A is a cross-sectional plan view near the female screw member screwed into the bolt, FIG. 13B is a cross-sectional plan view near the washer attached to the bolt, and FIG. It is a cross-sectional top view of the joining metal vicinity of a side opening groove shape cross section. 端根太又は側根太を挟んで上下に隣り合う壁パネルにおける縦枠材を接合する場合の従来の接合構造の概略図である。It is the schematic of the conventional joining structure in the case of joining the vertical frame material in the wall panel adjacent up and down across an end joist or a side joist. （ａ）は壁パネルの接合構造の他の形態を示す横断平面図、（ｂ）は一部を省略して示す正面図である。(A) is a cross-sectional top view which shows the other form of the joining structure of a wall panel, (b) is a front view which abbreviate | omits and shows a part. 従来の壁パネルの接合構造における縦枠材のウェブが曲げ変形してホールダウン金物が回転している状態を示す説明図である。It is explanatory drawing which shows the state in which the web of the vertical frame material in the junction structure of the conventional wall panel is bending-deforming, and the hole down metal fitting is rotating.

次に、本発明を図示の実施形態に基づいて詳細に説明する。 Next, the present invention will be described in detail based on the illustrated embodiment.

（第１実施形態）
まず、図１〜図３を参照して、本発明の第１実施形態の壁パネルからなる耐力壁の接合構造について説明する。 (First embodiment)
First, referring to FIG. 1 to FIG. 3, a description will be given of a load-bearing wall joining structure including a wall panel according to a first embodiment of the present invention.

図１は、本発明の第１実施形態の壁パネルの接合構造を示す横断平面図である。図１は、図３に示す左下部付近を示している図であり、図２は、図３に示す右下部付近を示している図である。図１〜図３では、コンクリート製基礎等の基礎１０に固定された壁厚方向Ｘの複数のアンカーボルト１又はボルト１に、耐力壁２を、接合金物３を介して固定している構造が示されている。 FIG. 1 is a cross-sectional plan view showing a wall panel joint structure according to a first embodiment of the present invention. 1 is a view showing the vicinity of the lower left portion shown in FIG. 3, and FIG. 2 is a view showing the vicinity of the lower right portion shown in FIG. In FIG. 1 to FIG. 3, a structure in which a load bearing wall 2 is fixed to a plurality of anchor bolts 1 or bolts 1 in a wall thickness direction X fixed to a foundation 10 such as a concrete foundation via a joint metal 3. It is shown.

図１、図２では、正面長方形状等の壁パネルからなる耐力壁２の下側の一側部が示されている。鋼製等の壁パネルからなる耐力壁２は、溝形鋼からなる左右の縦枠材４と溝形鋼等の上部の横枠材５及び下部の横枠材５とが、それらの端部において溶接等により接合されていると共に、中間部に中間横枠材又は中間縦枠材が適宜配置されてその端部が前記縦枠材４又は上下の横枠材５に接合されて、全体として正面視で外形が矩形状又は長方形状の枠形フレーム１５を備えている。 In FIG. 1 and FIG. 2, the one side part of the lower side of the load-bearing wall 2 which consists of wall panels, such as a front rectangular shape, is shown. The load-bearing wall 2 made of a wall panel made of steel or the like has left and right vertical frame members 4 made of channel steel, an upper horizontal frame material 5 and a lower horizontal frame material 5 made of channel steel, and the like. Are joined by welding or the like, and an intermediate horizontal frame member or intermediate vertical frame member is appropriately disposed in the intermediate portion, and its end is joined to the vertical frame member 4 or the upper and lower horizontal frame members 5 as a whole. A frame frame 15 having a rectangular shape or a rectangular shape as viewed from the front is provided.

接合金物３は、図１、図２に示すように、鋼製材料からなり、鉛直方向に設けられたウェブ３ａと、ウェブ３ａの壁厚方向Ｘの両端部から延びるように設けられたフランジ３ｂと、ウェブ３ａ及びフランジ３ｂの下端に設けられた接合用フランジ１７とを備えるものとすることができる。接合金物３は、内側縦枠部材４ｂのウェブ８ｂの内側面に、接合金物３のウェブ３ａを重合させて、ドリルねじ２０によってねじ止めされている。構造用面材７は、上下方向に間隔をおいた多数のドリルねじ２９によって、外側縦枠部材４ａのフランジ９ａに接合される。 As shown in FIG. 1 and FIG. 2, the joining hardware 3 is made of a steel material, and a web 3 a provided in the vertical direction and a flange 3 b provided so as to extend from both ends in the wall thickness direction X of the web 3 a. And the flange 3 for joining provided in the lower end of the web 3a and the flange 3b can be provided. The metal joint 3 is screwed with a drill screw 20 by polymerizing the web 3a of the metal joint 3 on the inner surface of the web 8b of the inner vertical frame member 4b. The structural face material 7 is joined to the flange 9a of the outer vertical frame member 4a by a large number of drill screws 29 spaced in the vertical direction.

接合金物３は、図１、図２に示すように、壁厚方向Ｘに間隔をおいて、２つのボルト挿通孔１８が対称に設けられ、２つのボルト挿通孔１８の間に、ウェブ３ａの中間から延びるようにリブ３ｃが設けられる。ボルト挿通孔１８は、基礎１０における壁厚方向Ｘに間隔をおいた複数のアンカーボルト１が挿入され、アンカーボルト１に雌ねじ部材２２をねじ込むことで、壁パネルからなる耐力壁２を基礎１０に立設することができる。接合金物３は、アンカーボルト１が壁厚方向Ｘに複数挿入されているので耐力壁２の高強度接合を可能にすることができる。 As shown in FIGS. 1 and 2, the joint hardware 3 is provided with two bolt insertion holes 18 symmetrically at intervals in the wall thickness direction X, and the web 3 a is interposed between the two bolt insertion holes 18. Ribs 3c are provided so as to extend from the middle. The bolt insertion hole 18 is inserted with a plurality of anchor bolts 1 spaced in the wall thickness direction X of the foundation 10, and the female screw member 22 is screwed into the anchor bolt 1. Can be erected. Since a plurality of anchor bolts 1 are inserted in the wall thickness direction X, the metal joint 3 can enable the strength wall 2 to be joined with high strength.

さらに、接合金物３は、図２に示すように、横枠材５を介して基礎１０に固定することもできる。これにより、接合金物３は、図１７において見られる縦枠材４のウェブ８の面外曲げは生じにくくなり、この面外曲げによるドリルねじ２９の抜け出しを防止して、耐力壁２の高強度接合を可能にすることができる。 Furthermore, as shown in FIG. 2, the metal joint 3 can be fixed to the foundation 10 via the horizontal frame member 5. As a result, the joint metal 3 is less likely to be bent out of plane of the web 8 of the vertical frame member 4 seen in FIG. 17, and the drill screw 29 is prevented from being pulled out by this out of plane bending, and the high strength of the bearing wall 2. Can be joined.

また、耐力壁２の縦枠材４に薄板軽量形鋼を用いて、アンカーボルト１又はボルト１と縦枠材４とを接合金物３を介して固定した耐力壁２の接合構造において、前記耐力壁２の少なくとも片面に取り付けられる構造用面材７と直交する壁厚方向Ｘに、アンカーボルト１又はボルト１を間隔をおいて複数配置したので、簡単な構造で、耐力壁２の高強度接合を可能にしている。 Further, in the joint structure of the load bearing wall 2 in which the anchor bolt 1 or the bolt 1 and the vertical frame member 4 are fixed via the joint metal fitting 3 using a thin lightweight steel for the vertical frame member 4 of the bearing wall 2, Since a plurality of anchor bolts 1 or bolts 1 are arranged at intervals in the wall thickness direction X orthogonal to the structural face material 7 attached to at least one side of the wall 2, high strength joining of the load bearing wall 2 with a simple structure Is possible.

（第２実施形態）
次に、図４〜図７を参照して、本発明の第２実施形態の壁パネルからなる耐力壁の接合構造について説明する。 (Second Embodiment)
Next, with reference to FIGS. 4-7, the joining structure of the load-bearing wall which consists of the wall panel of 2nd Embodiment of this invention is demonstrated.

図４及び図７は、本発明の第２実施形態の壁パネルの接合構造を示す横断平面図であり、図５及び図６の横断平面図に相当している。図４〜図７は、図８に示す左下部付近を示している図である。図４〜図７では、コンクリート製基礎等の基礎１０に固定された壁厚方向Ｘの複数のアンカーボルト１又はボルト１に、耐力壁２を、接合金物３を介して固定している構造が示されている。 4 and 7 are cross-sectional plan views showing the wall panel joint structure according to the second embodiment of the present invention, and correspond to the cross-sectional plan views of FIGS. 5 and 6. 4 to 7 are diagrams showing the vicinity of the lower left portion shown in FIG. 4 to 7, a structure in which the bearing wall 2 is fixed to the plurality of anchor bolts 1 or the bolts 1 in the wall thickness direction X fixed to the foundation 10 such as a concrete foundation via the joint hardware 3. It is shown.

図４〜図７では、正面長方形状等の壁パネルからなる耐力壁２の下側の一側部が示されている。鋼製壁パネルからなる耐力壁２は、溝形鋼からなる左右の縦枠材４と溝形鋼等の上部の横枠材５及び下部の横枠材５とが、それらの端部において溶接等により接合されていると共に、中間部に中間横枠材又は中間縦枠材が適宜配置されてその端部が前記縦枠材４又は上下の横枠材５に接合されて、全体として正面視で外形が矩形状又は長方形状の枠形フレーム１５を備えている。 4-7, the one side part of the lower side of the load-bearing wall 2 which consists of wall panels, such as a front rectangular shape, is shown. The load-bearing wall 2 made of steel wall panels is welded to the left and right vertical frame members 4 made of channel steel, the upper horizontal frame material 5 such as channel steel, and the lower horizontal frame material 5 at their ends. Etc., and an intermediate horizontal frame member or intermediate vertical frame member is appropriately disposed in the intermediate portion, and an end portion thereof is bonded to the vertical frame member 4 or the upper and lower horizontal frame members 5 so as to be viewed from the front as a whole. And a frame frame 15 having a rectangular or rectangular outer shape.

前記の壁パネルからなる耐力壁２は、建物、特にスチ−ルハウス（普通、板厚０．４ｍｍ以上、２．３ｍｍ未満の薄板軽量形鋼による枠材と、この枠材に構造用面材７を組み合わせて構成される鉄鋼系パネル構造の建物）或いは木造住宅において使用される耐力壁２の場合と、耐力壁２における縦枠材４の板厚寸法が、前記寸法以外の例えば２．３ｍｍ以上、例えば４．５ｍｍ等の板厚寸法の形鋼からなる縦枠材４及び横枠材５が用いられる耐力壁２の場合とがある。 The load-bearing wall 2 made up of the above-mentioned wall panels is a building, in particular a steel house (usually a frame material made of a thin lightweight steel having a thickness of 0.4 mm or more and less than 2.3 mm, and a structural surface material 7 In the case of the load-bearing wall 2 used in a steel-based panel structure or a wooden house, and the thickness of the vertical frame member 4 in the load-bearing wall 2 is, for example, 2.3 mm or more other than the above dimensions. For example, there is a case of the load bearing wall 2 in which the vertical frame member 4 and the horizontal frame member 5 made of a shape steel having a thickness of 4.5 mm or the like are used.

壁パネルからなる耐力壁２に設置されている構造用面材７は、壁パネルの少なくとも片面に設けられている面材であり、室外側においては、図示の形態のように、折板等の鋼板からなる構造用面材７が設けられ、室内側においては、合板や石膏ボード等の非金属材料からなる構造用面材７が設けられる。 The structural face material 7 installed on the load-bearing wall 2 made of a wall panel is a face material provided on at least one side of the wall panel, and on the outdoor side, a folded plate or the like as shown in the figure. A structural face material 7 made of a steel plate is provided, and on the indoor side, a structural face material 7 made of a non-metallic material such as plywood or gypsum board is provided.

壁パネルからなる耐力壁２は、左右両端部に、縦枠材４を備えている。図４に示す場合は、断面中空矩形状の鋼製角鋼（角パイプ）を、壁厚方向Ｘに複数（図示の場合は２本）平行に角鋼の一辺を当接させて並列配置する共に、前記一辺の両端部をコーナー部において溶接により接合して外側縦枠部材４ａを形成していると共に、断面リップ付き溝形鋼からなる内側縦枠部材４ｂにおけるウェブ８ｂを、外側縦枠部材４ａのウェブ８ａに当接して、内側縦枠部材４ｂにおけるウェブ８ｂと外側縦枠部材４ａのウェブ８ａとを、上下方向に間隔をおくと共に壁厚方向Ｘに間隔をおいた多数のドリルねじ２９により接合して、縦枠材４を形成している。前記のドリルねじ２９は、内側縦枠部材４ｂにおけるウェブ８ｂに対してフランジ９ｂ寄りに設置されていることで、内側縦枠部材４ｂにおけるウェブ８ｂの面外変形が、中央寄りに設置する場合に比べて、ほとんど生じないようにされている。 The load bearing wall 2 made of a wall panel is provided with vertical frame members 4 at both left and right ends. In the case shown in FIG. 4, steel square steel (square pipe) having a hollow rectangular cross section is arranged in parallel with a plurality of (two in the illustrated case) parallel to the wall thickness direction X with one side of the square steel abutting, Both ends of the one side are joined by welding at the corners to form the outer vertical frame member 4a, and the web 8b in the inner vertical frame member 4b made of channel steel with a cross-sectional lip is connected to the outer vertical frame member 4a. In contact with the web 8a, the web 8b of the inner vertical frame member 4b and the web 8a of the outer vertical frame member 4a are joined by a number of drill screws 29 spaced apart in the vertical direction and spaced in the wall thickness direction X. Thus, the vertical frame member 4 is formed. When the drill screw 29 is installed closer to the flange 9b than the web 8b in the inner vertical frame member 4b, the out-of-plane deformation of the web 8b in the inner vertical frame member 4b is installed closer to the center. In comparison, it is made to hardly occur.

前記内側縦枠部材４ｂは、リップ付き溝形鋼からなる内側縦枠部材４ｂであり、その内側縦枠部材４ｂのウェブ８ｂが壁厚方向Ｘに配置され、リップ付き溝形鋼からなる内側縦枠部材４ｂのフランジ９ｂが、壁厚方向Ｘの両側に短辺側として配置され、外側縦枠部材４ａの一方のフランジ９ａの外面と、内側縦枠部材４ｂの一方のフランジ９ｂ外面とは同面状とされている。 The inner vertical frame member 4b is an inner vertical frame member 4b made of grooved steel with a lip. The web 8b of the inner vertical frame member 4b is arranged in the wall thickness direction X, and the inner vertical frame member 4b is made of grooved steel with a lip. The flange 9b of the frame member 4b is arranged as a short side on both sides in the wall thickness direction X, and the outer surface of one flange 9a of the outer vertical frame member 4a is the same as the outer surface of one flange 9b of the inner vertical frame member 4b. It is assumed to be planar.

前記内側縦枠部材４ｂのウェブ８ｂと各フランジ９ｂにより形成される溝内に、接合金物３が、前記内側縦枠部材４ｂの軸方向から挿入されて、内側縦枠部材４ｂのウェブ８ｂに近接するようにウェブ８ｂ寄りに配置されている。 The metal fitting 3 is inserted from the axial direction of the inner vertical frame member 4b into the groove formed by the web 8b of the inner vertical frame member 4b and each flange 9b, and is close to the web 8b of the inner vertical frame member 4b. As shown, it is arranged closer to the web 8b.

前記接合金物３は、鋼製材料からなり、水平断面形状が壁厚方向Ｘに長辺を有する長方形である筒状体６を備えており、対向するフランジ９ｂを短辺とする内側縦枠部材４ｂにおけるフランジ９ｂの内側面に前記長方形の筒状体６の短辺のフランジ６ａが重合するように、内側縦枠部材４ｂのウェブ８ｂ寄りに配置され、接合金物３の各短辺（フランジ６ａ）と縦枠材４の各短辺（フランジ９ｂ）とがそれぞれドリルねじ２０によりねじ止めされている。図示の形態では、構造用面材７として、室外側に配置の鋼製折板の谷部フランジが縦枠材４の片面に当接されて、鋼製折板と、接合金物３における筒状体６とが、内側縦枠部材４ｂのフランジ９ｂに、上下方向に間隔をおくと共に左右方向に間隔をおいた多数のドリルねじ２０により接合されている。筒状体６が内側縦枠部材４ｂのウェブ８ｂ寄りに配置されていることで、内側縦枠部材４ｂのフランジ９ｂの先端側にドリルねじ２０により接合する場合に比べて曲げ力が小さくなるようにされている。 The joint hardware 3 is made of a steel material, includes a cylindrical body 6 whose horizontal cross-sectional shape is a rectangle having a long side in the wall thickness direction X, and an inner vertical frame member whose short side is an opposing flange 9b. 4b is arranged near the web 8b of the inner vertical frame member 4b so that the flange 6a of the short side of the rectangular tubular body 6 overlaps with the inner surface of the flange 9b in 4b, and each short side (flange 6a ) And the respective short sides (flange 9b) of the vertical frame member 4 are screwed by drill screws 20, respectively. In the illustrated form, as the structural face material 7, a trough flange of a steel folded plate arranged on the outdoor side is brought into contact with one surface of the vertical frame member 4, and the tubular shape of the steel folded plate and the joint hardware 3 is formed. The body 6 is joined to the flange 9b of the inner vertical frame member 4b by a number of drill screws 20 spaced in the vertical direction and spaced in the left-right direction. Since the cylindrical body 6 is disposed closer to the web 8b of the inner vertical frame member 4b, the bending force is reduced as compared with the case where the end of the flange 9b of the inner vertical frame member 4b is joined by the drill screw 20. Has been.

前記接合金物３における平面視で長方形の筒状体６の内側には、壁厚方向Ｘに間隔をおいて中央寄りに、横断面円形又は矩形の複数（図示の場合は２つ）の内側筒状体６ｃが対称に配置されて、前記筒状体６に溶接Ｗ等により固定されている。平面視で長方形の筒状体６の上下方向の高さ寸法と、内側筒状体６ｃの上下方向の高さ寸法とは同じ長さ寸法とされている。前記の各内側筒状体６ｃを有する筒状体６を下部（又は、下部と上部との両方）に備えた縦枠材４の下端部に、下部の横枠材５を設置し、前記縦枠材４の上端部に上部の横枠材５を設置して、前記の枠形フレーム１５が構成されている。また、下部の横枠材５には、各内側筒状体６ｃに対応して、壁厚方向Ｘに間隔をおいた複数のボルト挿通用の縦貫通孔、又は、複数のボルト１を挿入可能な縦貫通孔が設けられて、アンカーボルト１又はボルト１を挿入可能にしている。 A plurality of (two in the illustrated example) inner cylinders having a circular or rectangular cross-section are disposed on the inner side of the rectangular cylindrical body 6 in plan view in the joint metal piece 3 with a spacing in the wall thickness direction X and closer to the center. The cylindrical bodies 6c are arranged symmetrically and are fixed to the cylindrical body 6 by welding W or the like. The height dimension in the vertical direction of the rectangular tubular body 6 in plan view and the height dimension in the vertical direction of the inner cylindrical body 6c are the same length dimension. The lower horizontal frame member 5 is installed at the lower end of the vertical frame member 4 provided with the cylindrical member 6 having the inner cylindrical members 6c at the lower part (or both the lower part and the upper part), and the vertical The frame-shaped frame 15 is configured by installing the upper horizontal frame material 5 at the upper end of the frame material 4. Also, a plurality of vertical through holes for inserting bolts or a plurality of bolts 1 spaced in the wall thickness direction X can be inserted into the lower horizontal frame member 5 corresponding to each inner cylindrical body 6c. A vertical through hole is provided so that the anchor bolt 1 or the bolt 1 can be inserted.

アンカーボルト１に取り付けられた下部雌ねじ部材１２及び緩み止め座金は、アンカーボルト１の上端部とともに下部の横枠材５に挿入される。次に、下部雌ねじ部材１２及び緩み止め座金は、アンカーボルト１の上端部のみが筒状体６の対向するウェブ３ａに渡る下部の座金４２に挿入され、下部の横枠材５と下部の座金４２との間に設けられることになる。さらに、下部雌ねじ部材１２及び緩み止め座金は、下部雌ねじ部材１２をねじ込むことにより、下部の座金４２を下部の横枠材５から離間させた状態で筒状体６を固定して、下部の横枠材５及び前記各内側筒状体６ｃを備えた壁パネルからなる耐力壁２が基礎１０に載せ置かれる。筒状体６は、筒状体６の対向するウェブ３ａに渡る上部の座金４２にアンカーボルト１の上端部が挿入され、上部雌ねじ部材１１がアンカーボルト１の上端部にねじ込まれる。これにより、前記壁パネルからなる耐力壁２は、筒状体６の座金４２が上下から上部雌ねじ部材１１及び下部雌ねじ部材１２で固定された状態で立設される。なお、筒状体６の対向するウェブ３ａに渡る下部及び上部の座金４２は、筒状体６の対向するウェブ３ａの外面又は内側面に係合する脚部を備えた形態とすることで回り止め座金４２としてもよく、また、２枚の座金４２を一体化して回り止め座金４２としてもよい。 The lower female screw member 12 and the locking washer attached to the anchor bolt 1 are inserted into the lower horizontal frame member 5 together with the upper end portion of the anchor bolt 1. Next, only the upper end portion of the anchor bolt 1 is inserted into the lower washer 42 across the opposing web 3a of the cylindrical body 6, and the lower female member 12 and the locking stopper washer are inserted into the lower horizontal frame member 5 and the lower washer. 42. Further, the lower female screw member 12 and the locking washer are fixed by fixing the cylindrical body 6 with the lower washer 42 separated from the lower horizontal frame member 5 by screwing the lower female screw member 12. The load bearing wall 2 made of a wall panel provided with the frame member 5 and the inner cylindrical bodies 6c is placed on the foundation 10. In the cylindrical body 6, the upper end portion of the anchor bolt 1 is inserted into the upper washer 42 across the web 3 a facing the cylindrical body 6, and the upper female screw member 11 is screwed into the upper end portion of the anchor bolt 1. Thereby, the load-bearing wall 2 made of the wall panel is erected in a state where the washer 42 of the cylindrical body 6 is fixed from above and below by the upper female screw member 11 and the lower female screw member 12. The lower and upper washers 42 across the opposing web 3a of the cylindrical body 6 can be rotated by providing a leg portion that engages with the outer surface or inner surface of the opposing web 3a of the cylindrical body 6. The stop washer 42 may be used, or the two washers 42 may be integrated to form the rotation washer 42.

前記接合金物３の降伏耐力は、複数のアンカーボルト１の降伏耐力よりも低く、かつ前記接合金物３は、耐力を保持しながら変形可能にされている。これにより、塑性化部位は接合金物３に集約されるため、大地震後の建物の再使用は接合金物３の交換だけで済む可能性がある。なお、接合金物３の具体的な形状については、筒状体６の側面に多様な形状のスリット孔を形成する加工等により、減衰部を設けることも効果的である。 The yield strength of the joint metal 3 is lower than the yield strength of the plurality of anchor bolts 1, and the joint metal 3 is deformable while maintaining the yield strength. As a result, the plasticized parts are concentrated in the metal joint 3, so that the reuse of the building after a large earthquake may be merely replacement of the metal joint 3. In addition, about the specific shape of the joining metal fitting 3, it is also effective to provide an attenuation part by the process etc. which form the slit hole of various shapes in the side surface of the cylindrical body 6. FIG.

なお、図示を省略するが、前記第２実施形態におけるコンクリート製の基礎１０を、妻面側の梁又は軒梁に置き換え、前記アンカーボルト１を上下階の耐力壁２の接合金物３に十分渡る長さのボルト１に置き換えて、接合金物３を上下階間で間隔をおいて２つ設けるようにすれば、上階側の耐力壁２及び下階側の耐力壁２相互を接合する接合構造になる。 Although not shown, the concrete foundation 10 in the second embodiment is replaced with a beam or eaves beam on the end face side, and the anchor bolt 1 is sufficiently passed over the joint metal 3 of the bearing wall 2 on the upper and lower floors. If it replaces with the volt | bolt 1 of length and it provides two joining hardware 3 at intervals between upper and lower floors, the joining structure which joins the bearing wall 2 of the upper floor side, and the bearing wall 2 of the lower floor side mutually become.

このような場合には、壁パネルからなる耐力壁２における縦枠材４の上部に、前記実施形態と同様に、上部の接合金物３を設置すると共に、上部の横枠材側の接合金物３における各内側筒状体６ｃに対応した位置の上部の横枠材５にボルト挿入用の縦貫通孔を設け、床パネル１３（図９参照）における梁の上下のフランジにも同様にボルト挿通用の縦貫通孔を設けるようにすることで、上階側の壁パネルからなる耐力壁２と、下階側の壁パネルからなる耐力壁２を接合することができる。なお、このような場合には、床パネル１３内又は独立した圧縮補強金物１４及び補強プレートを介在させると、引張力及び圧縮力を下階側或いは上階側に伝達することができる。なお、図９に示すように、せん断拘束用アンカー４７を基礎１０に立設させて、耐力壁２の下部の横枠材５の移動を拘束するようにしてもよい。 In such a case, the upper joint metal 3 is installed on the upper part of the vertical frame member 4 in the load-bearing wall 2 made of the wall panel, and the upper joint member 3 on the side of the horizontal frame member is installed as in the above embodiment. A vertical through hole for inserting a bolt is provided in the upper horizontal frame member 5 at a position corresponding to each inner cylindrical body 6c in the above, and bolts are similarly inserted into the upper and lower flanges of the beam in the floor panel 13 (see FIG. 9). By providing the vertical through-holes, it is possible to join the load-bearing wall 2 made of the upper-floor side wall panel and the load-bearing wall 2 made of the lower-floor side wall panel. In such a case, the tensile force and the compressive force can be transmitted to the lower floor side or the upper floor side by interposing the floor panel 13 or the independent compression reinforcement hardware 14 and the reinforcement plate. As shown in FIG. 9, the shear restraint anchor 47 may be erected on the foundation 10 to restrain the movement of the horizontal frame member 5 below the bearing wall 2.

また、平面視で長方形の筒状体６の各フランジ６ａは、縦枠材４における内側縦枠部材４ｂに引張力が作用しても、内側縦枠部材４ｂを含む縦枠材４のウェブ８が、接合金物３側の面外方向に変形することがなく、そのため、接合金物３が前記面外方向に回転するおそれがないから、接合金物３と縦枠材４とを接合しているドリルねじ２０が抜け出すおそれを排除することができ、高耐力の接合構造とすることができる。前記の接合金物３は、耐力壁２の各縦枠材４に、予め工場等において組み込まれている。 Further, the flanges 6a of the cylindrical body 6 that is rectangular in plan view, even if a tensile force acts on the inner vertical frame member 4b of the vertical frame member 4, the web 8 of the vertical frame member 4 including the inner vertical frame member 4b. However, there is no deformation in the out-of-plane direction on the side of the joint metal 3, and therefore there is no possibility that the joint metal 3 will rotate in the out-of-plane direction, so that the drill that joins the joint metal 3 and the vertical frame member 4. The possibility that the screw 20 is pulled out can be eliminated, and a joint structure with high yield strength can be obtained. The metal fitting 3 is incorporated in each vertical frame member 4 of the load bearing wall 2 in advance in a factory or the like.

このように、耐力壁２の縦枠材４に薄板軽量形鋼を用いて、アンカーボルト１又はボルト１と縦枠材４とを接合金物３を介して固定した耐力壁２の接合構造において、前記耐力壁２の少なくとも片面に取り付けられる構造用面材７と直交する壁厚方向Ｘに、アンカーボルト１又はボルト１を間隔をおいて複数配置したので、簡単な構造で、耐力壁２の高強度接合を可能にしている。 In this way, in the joint structure of the load bearing wall 2 in which the anchor bolt 1 or the bolt 1 and the vertical frame member 4 are fixed via the joint hardware 3 using the thin lightweight steel for the vertical frame member 4 of the bearing wall 2, Since a plurality of anchor bolts 1 or bolts 1 are arranged at intervals in the wall thickness direction X orthogonal to the structural face material 7 attached to at least one side of the load bearing wall 2, the structure of the load bearing wall 2 can be increased with a simple structure. Strength bonding is possible.

前記実施形態のように、複数のアンカーボルト１又はボルト１を配置する場合に、前記耐力壁２からなる耐力壁パネル２４における縦中心軸線からの壁厚方向Ｘのボルト１までの距離を等しくすると共に、上下階においても同じように設定することで、各アンカーボルト１又はボルト１に作用させる応力を均等に負担させることができる。また、複数のアンカーボルト１に均等に負担させることで、アンカーボルト１の直径断面を１本のみ設ける場合に比べて小さくすることができる。また、接合金物３のフランジ３ｂを縦枠材４のフランジ９ｂにねじ接合しているため、接合金物３における壁厚方向Ｘの両端を拘束していることになり、ドリルねじ２０が抜け出すおそれを排除することができる。また、ドリルねじ２０の抜け出しを防止することができるため、ねじの接合効率を向上させて接合部の接合強度向上に寄与でき、ねじ本数を削減することもできる。 When a plurality of anchor bolts 1 or bolts 1 are arranged as in the above embodiment, the distance from the longitudinal center axis to the bolt 1 in the wall thickness direction X in the load bearing wall panel 24 composed of the load bearing walls 2 is made equal. In addition, by similarly setting the upper and lower floors, the stress acting on each anchor bolt 1 or bolt 1 can be equally borne. In addition, by equally burdening the plurality of anchor bolts 1, the anchor bolt 1 can be made smaller than when only one diameter cross section is provided. Further, since the flange 3b of the joint metal 3 is screwed to the flange 9b of the vertical frame member 4, both ends of the joint metal 3 in the wall thickness direction X are constrained, and the drill screw 20 may be pulled out. Can be eliminated. In addition, since the drill screw 20 can be prevented from coming off, the screw joining efficiency can be improved to improve the joining strength of the joint portion, and the number of screws can be reduced.

（第３実施形態）
図１０には、本発明の第３実施形態の壁パネルからなる耐力壁の接合構造が示され、図１１には、耐力壁２が示されている。この実施形態では、主に、耐力壁２における縦枠材４に設けられる接合金物３が相違している。 (Third embodiment)
FIG. 10 shows a joint structure of load-bearing walls made up of wall panels according to the third embodiment of the present invention, and FIG. 11 shows the load-bearing wall 2. In this embodiment, the joining hardware 3 provided on the vertical frame member 4 in the bearing wall 2 is mainly different.

この第３実施形態では、耐力壁２における左右両側部の各縦枠材４が、１本ものの鋼製角パイプとされ、水平断面が壁厚方向Ｘに長辺を有する長方形の鋼製角パイプとされている。各縦枠材４におけるウェブ８に、複数の溝形鋼等の溝形部材からなる接合金物３がドリルねじ２０により固定されている。複数の溝形鋼等の溝形部材からなる接合金物３は、各溝形鋼等の溝形部材のフランジ相互が隣り合うように当接されて並列して配置され、各溝形鋼等の溝形部材からなる接合金物３のウェブ３ａが、縦枠材４に上下方向に間隔をおくと共に壁厚方向Ｘに間隔をおいた多数のドリルねじ２０により固定されている。 In this third embodiment, each of the vertical frame members 4 on both the left and right sides of the bearing wall 2 is a single steel square pipe, and a rectangular steel square pipe whose horizontal section has a long side in the wall thickness direction X. It is said that. A metal joint 3 made of a groove-shaped member such as a plurality of groove-shaped steels is fixed to the web 8 in each vertical frame member 4 by a drill screw 20. The metal joint 3 composed of a plurality of channel members such as channel steels is arranged in parallel so that the flanges of the channel members such as channel steels are in contact with each other so that they are adjacent to each other. The web 3a of the metal joint 3 made of a groove-shaped member is fixed to the vertical frame member 4 by a number of drill screws 20 spaced in the vertical direction and spaced in the wall thickness direction X.

前記接合金物３を形成している各溝形鋼等の溝形部材からなる接合金物３は、基礎１０から２階の床パネル１３の下面までの長さ寸法、又は下階床パネルから上階床パネル下面までの長さ寸法とされ、ほぼ壁パネルからなる耐力壁２の高さ寸法とされている。前記各溝形鋼等の溝形部材からなる接合金物３のウェブ３ａは、その高さ方向のほぼ全長に渡って、上下方向に間隔をおくと共に壁厚方向Ｘに間隔をおいた多数のドリルねじ２０により固定されている。 The metal joint 3 made of a groove-shaped member such as each grooved steel forming the metal joint 3 is a length dimension from the base 10 to the lower surface of the floor panel 13 on the second floor, or from the lower floor panel to the upper floor. It is the length dimension to the lower surface of the floor panel, and is the height dimension of the load bearing wall 2 composed of a wall panel. The web 3a of the metal fitting 3 made of a groove-shaped member such as each groove-shaped steel has a number of drills spaced in the vertical direction and spaced in the wall thickness direction X over almost the entire length in the height direction. It is fixed by a screw 20.

各溝形鋼等の溝形部材からなる接合金物３の上下両端部には、当該接合金物３のウェブ３ａ及び各フランジ１６に溶接等により固定された接合用フランジ１７が水平に取り付けられ、その各接合用フランジ１７には、ボルト挿通用のボルト挿通孔１８がそれぞれ設けられている。前記の接合金物３は、前記実施形態と同様に、予め耐力壁２に組み込まれている。 At the upper and lower end portions of the metal joint 3 made of a channel member such as each steel groove, a joint flange 17 fixed to the web 3a of the metal joint 3 and each flange 16 by welding or the like is horizontally attached. Each joining flange 17 is provided with a bolt insertion hole 18 for bolt insertion. The metal joint 3 is incorporated in the load bearing wall 2 in the same manner as in the above embodiment.

このような接合金物３を備えた耐力壁２も前記実施形態と同様に、基礎１０における壁厚方向Ｘに間隔をおいた複数のアンカーボルト１を、接合金物３における各接合用フランジ１７の各ボルト挿通孔１８にそれぞれ挿入するように、耐力壁２を建て込み、前記各アンカーボルト１に雌ねじ部材２２をねじ込むことで、壁パネルからなる耐力壁２を基礎１０に立設することができる。 In the same manner as in the above-described embodiment, the bearing wall 2 provided with such a joint metal 3 also includes a plurality of anchor bolts 1 spaced in the wall thickness direction X of the foundation 10 and each of the flanges 17 for each joint in the joint metal 3. The load bearing wall 2 is erected so as to be inserted into each of the bolt insertion holes 18, and the female screw member 22 is screwed into each anchor bolt 1, whereby the load bearing wall 2 formed of a wall panel can be erected on the foundation 10.

また、床パネル１３におけるフランジ付連結体２８の縦貫通孔を、下階側の接合金物３のボルト挿通孔１８に合致するように配置し、フランジ付連結体２８の下部のフランジ１９と、下階側の接合金物３における上部の接合用フランジ１７とを、ボルト・ナット２３により接合し、前記フランジ付連結体２８における上部のフランジ１９の縦貫通孔に、上階側の接合金物３のボルト挿通孔１８が合致するように、上階側の耐力壁２を建て込み、前記フランジ付連結体２８における上部のフランジ１９と、上階側の接合金物３における下部の接合用フランジ１７とを、ボルト・ナット２３により接合することで、上階に向って建て込んでいくことができる。なお、適宜、縦貫通孔を備えた鋼板等の調整プレート２７を介在させてもよい。 In addition, the vertical through hole of the flanged connecting body 28 in the floor panel 13 is arranged so as to match the bolt insertion hole 18 of the lower-layer joint metal 3, and the lower flange 19 of the flanged connecting body 28 and the lower The upper joining flange 17 in the floor side metal fitting 3 is joined by a bolt / nut 23, and the bolt of the upper floor side metal fitting 3 is inserted into the vertical through hole of the upper flange 19 in the flanged connector 28. The upper floor side load bearing wall 2 is erected so that the insertion hole 18 matches, and the upper flange 19 in the flanged coupling body 28 and the lower joint flange 17 in the upper floor side joint fitting 3 are By joining with bolts and nuts 23, it can be built toward the upper floor. In addition, you may interpose the adjustment plate 27, such as a steel plate provided with the vertical through-hole suitably.

この第３実施形態では、接合金物３が、ほぼ１階分高さ寸法の形鋼を備え、壁パネルからなる耐力壁２における縦枠材４と同じ高さ寸法であり、縦枠材４のウェブ８の全長に渡って配置されて、縦枠材４及び接合金物３の全長に渡ってドリルねじ２０により接合されている構造で、縦枠材４と接合金物３との間での引張力及び圧縮力の伝達が確実で、応力が分散して伝達される構造とされ、形鋼を用いた接合金物３により縦枠材４及びそのウェブ８が補強されている構造とされている。そのため、地震時等に水平力が作用した場合に、縦枠材４のウェブ８に引張力が作用しても、その全長に接合金物３のウェブ３ａが接合されているため、縦枠材４のウェブ８の面外変形が起きないように拘束し、接合金物３に十分分散して伝達することができると共に接合金物３自体も支持力を発揮する構造になっている。前記のように、接合金物３自体も支持力を発揮する構造とするために、縦枠材４の板厚寸法よりも厚い板厚寸法のウェブ３ａ及びフランジ３ｂを備えた形鋼を利用した接合金物３とするとよい。 In this 3rd Embodiment, the joining metal fitting 3 is provided with the shape steel of the height dimension for about one floor, is the same height dimension as the vertical frame material 4 in the load-bearing wall 2 which consists of a wall panel, It is arranged over the entire length of the web 8 and is joined by the drill screw 20 over the entire length of the vertical frame member 4 and the joint metal member 3, and the tensile force between the vertical frame member 4 and the joint metal member 3. In addition, the structure is such that the transmission of the compressive force is reliable and the stress is distributed and transmitted, and the vertical frame member 4 and the web 8 thereof are reinforced by the joint metal 3 using the shape steel. Therefore, when a horizontal force is applied during an earthquake or the like, even if a tensile force is applied to the web 8 of the vertical frame member 4, the web 3 a of the metal fitting 3 is bonded to the entire length thereof. The web 8 is constrained so as not to undergo out-of-plane deformation, can be sufficiently dispersed and transmitted to the joint metal 3, and the joint metal 3 itself also has a structure that exhibits a supporting force. As described above, in order to obtain a structure in which the metal joint 3 itself also exerts a supporting force, it is joined using a shape steel provided with a web 3a and a flange 3b having a plate thickness that is thicker than the plate thickness of the vertical frame member 4. It is better to use hardware 3.

また、下階側の接合金物３と基礎１０とが複数のアンカーボルト１により固定され、また、下階側の接合金物３と上階側の接合金物３とが、床パネル１３におけるフランジ付連結体２８を介して複数のボルト・ナット２３により強固に連結されているため、上下階に渡り一体とされた接合金物３自体は回転することのない構造になっており、縦枠材４側の面外変形を防止する共に、縦枠材４側の面外変形をしようとする時の曲げモーメントＭに抵抗できる構造（モーメントを負担できる構造）になっている。 Further, the lower floor side joint hardware 3 and the foundation 10 are fixed by a plurality of anchor bolts 1, and the lower floor side joint hardware 3 and the upper floor side joint hardware 3 are connected to the floor panel 13 with a flange. Since it is firmly connected by a plurality of bolts and nuts 23 via the body 28, the joint hardware 3 itself integrated over the upper and lower floors has a structure that does not rotate, and is on the side of the vertical frame member 4 side. In addition to preventing out-of-plane deformation, the structure can resist a bending moment M (a structure capable of bearing a moment) when attempting to perform out-of-plane deformation on the vertical frame member 4 side.

なお、前記実施形態におけるドリルねじ２０による接合は、支圧接合により接合されている。本発明を実施する場合、前記のドリルねじ２０に代えて、他のねじ接合としてもよい。 In addition, joining by the drill screw 20 in the said embodiment is joined by bearing joining. When the present invention is carried out, another screw joint may be used instead of the drill screw 20 described above.

１アンカーボルト、ボルト
２耐力壁
３接合金物
３ａウェブ（接合金物３の）
３ｂフランジ（接合金物３の）
３ｃリブ（接合金物３の）
４縦枠材
４ａ外側縦枠部材
４ｂ内側縦枠部材
５横枠材
６筒状体
６ａフランジ
６ｃ内側筒状体
７構造用面材
８ウェブ
８ａウェブ（外側縦枠部材４ａの）
８ｂウェブ（内側縦枠部材４ｂの）
９ａフランジ（外側縦枠部材４ａの）
９ｂフランジ（内側縦枠部材４ｂの）
１０基礎
１１上部雌ねじ部材
１２下部雌ねじ部材
１３床パネル
１４圧縮補強金物
１５枠形フレーム
１６フランジ
１７接合用フランジ
１８フランジ付連結体
１９フランジ（フランジ付連結体１８の）
２０ドリルねじ
２２雌ねじ部材
２３ボルト・ナット
２４耐力壁パネル
２７調整プレート
２８フランジ付連結体
２９ドリルねじ
４２座金
４７せん断拘束用アンカーボルト DESCRIPTION OF SYMBOLS 1 Anchor bolt, bolt 2 Bearing wall 3 Joint metal 3a Web (joint metal 3)
3b Flange (for joint hardware 3)
3c rib (joint metal 3)
4 Vertical frame member 4a Outer vertical frame member 4b Inner vertical frame member 5 Horizontal frame member 6 Cylindrical body 6a Flange 6c Inner cylindrical body 7 Structural surface material 8 Web 8a Web (outside vertical frame member 4a)
8b Web (inner vertical frame member 4b)
9a Flange (outside vertical frame member 4a)
9b Flange (inner vertical frame member 4b)
DESCRIPTION OF SYMBOLS 10 Base 11 Upper female screw member 12 Lower female screw member 13 Floor panel 14 Compression reinforcement hardware 15 Frame-shaped frame 16 Flange 17 Joining flange 18 Flange connection body 19 Flange (of flange connection body 18)
20 Drill Screw 22 Female Thread Member 23 Bolt / Nut 24 Bearing Wall Panel 27 Adjustment Plate 28 Flanged Connector 29 Drill Screw 42 Washer 47 Shear Restraint Anchor Bolt

Claims

耐力壁の縦枠材に薄板軽量形鋼を用いて、アンカーボルト又はボルトと縦枠材とを接合金物を介して固定した耐力壁の接合構造において、前記耐力壁の少なくとも片面に取り付けられる構造用面材と直交する壁厚方向に、アンカーボルト又はボルトを複数配置して、
前記接合金物は、水平断面形状が壁厚方向に長辺を有する長方形である筒状体を備えており、縦枠材における短辺側の対向するフランジ内側面に前記長方形の筒状体の短辺側が重合するように配置され、前記接合金物の各短辺と前記縦枠材の各フランジとがそれぞれねじ止めされて、前記アンカーボルト又はボルトを収納配置する内側筒状体を複数備え、その内側筒状体は、前記長方形の筒状体の内側において壁厚方向に間隔をおいて中央寄りに、複数対称に配置されていると共に前記長方形の筒状体に固定されていること
を特徴とする耐力壁の接合構造。 For a structure that is attached to at least one side of the load bearing wall in a load bearing wall joint structure in which anchor bolts or bolts and the vertical frame member are fixed via a joint metal fitting using a thin lightweight steel shape for the vertical frame member of the load bearing wall. Place multiple anchor bolts or bolts in the wall thickness direction perpendicular to the face material ,
The joint hardware includes a cylindrical body whose horizontal cross-sectional shape is a rectangle having a long side in the wall thickness direction, and a short side of the rectangular cylinder is formed on the opposing flange inner surface on the short side of the vertical frame member. It is arranged so that the sides are superposed, each short side of the joint metal and each flange of the vertical frame member are screwed, respectively, and includes a plurality of inner cylindrical bodies that house and arrange the anchor bolts or bolts, A plurality of inner cylindrical bodies are arranged symmetrically near the center at intervals in the wall thickness direction on the inner side of the rectangular cylindrical body, and are fixed to the rectangular cylindrical body. Bearing wall joining structure.

前記接合金物の降伏耐力は、前記複数のアンカーボルト及びボルトの降伏耐力よりも低く、かつ前記接合金物は、耐力を保持しながら変形可能にされていること
を特徴とする請求項１に記載の耐力壁の接合構造。 The yield strength of the joint hardware is lower than the yield strength of the plurality of anchor bolts and bolts, and the joint hardware is deformable while maintaining the yield strength . Bearing wall joint structure.

耐力壁の縦枠材に薄板軽量形鋼を用いて、アンカーボルト又はボルトと縦枠材とを接合金物を介して固定した耐力壁の接合構造において、前記耐力壁の少なくとも片面に取り付けられる構造用面材と直交する壁厚方向に、アンカーボルト又はボルトを複数配置して、
前記接合金物は、前記耐力壁の下方から上方に渡って、壁厚方向に複数並列して配置された溝形部材により形成されるウェブと、それぞれの前記溝形部材の上端及び下端に、上下方向に貫通するボルト挿通孔を有する接合用フランジとを備え、前記接合金物のウェブが前記縦枠材のウェブに重合させてねじ接合され、前記接合用フランジが壁厚方向に配置された複数のアンカーボルト又はボルトにより連結されること
を特徴とする耐力壁の接合構造。 For a structure that is attached to at least one side of the load bearing wall in a load bearing wall joint structure in which anchor bolts or bolts and the vertical frame member are fixed via a joint metal fitting using a thin lightweight steel shape for the vertical frame member of the load bearing wall. Place multiple anchor bolts or bolts in the wall thickness direction perpendicular to the face material,
The bonding hardware is formed by a web formed by a plurality of groove-shaped members arranged in parallel in the wall thickness direction from the lower side to the upper side of the load-bearing wall, and the upper and lower ends of the respective groove-shaped members. A joining flange having a bolt insertion hole penetrating in a direction, a web of the joining hardware is superposed on the web of the vertical frame member and screw joined, and the joining flange is arranged in a wall thickness direction. junction structure resistant force wall, characterized in that it is connected by anchor bolts or bolt.