JP6967859B2

JP6967859B2 - Seismic retrofitting structure

Info

Publication number: JP6967859B2
Application number: JP2017044153A
Authority: JP
Inventors: 資貴赤澤; 由典松原; 哲日下
Original assignee: Takenaka Corp
Current assignee: Takenaka Corp
Priority date: 2017-03-08
Filing date: 2017-03-08
Publication date: 2021-11-17
Anticipated expiration: 2037-03-08
Also published as: JP2018145744A

Description

本発明は、耐震補強構造に関する。 The present invention relates to a seismic retrofitting structure.

下記特許文献１には、鉄筋コンクリート構造物における既存の柱、梁及び耐震壁に対して、補強部材を接合した耐震補強構造が示されている。この補強部材は、柱、梁に対してはあと施工アンカーによって接合され、耐震壁に対してはボルトによって接合されている。これにより、柱及び梁と、耐震壁とが補強部材を介して接合される。 The following Patent Document 1 shows a seismic retrofitting structure in which reinforcing members are joined to existing columns, beams and shear walls in a reinforced concrete structure. This reinforcing member is joined to columns and beams by post-installed anchors, and to earthquake-resistant walls by bolts. As a result, the columns and beams and the shear wall are joined via the reinforcing member.

特開平１０−６１２０３号公報Japanese Unexamined Patent Publication No. 10-61203

しかし上記特許文献１のように躯体（柱及び梁）と壁材（耐震壁）とを接合するためにボルトを用いる場合、壁材の一方側でナットを押さえ、他方側でボルトを締め込むため、壁材の両側から作業する必要がある。また、壁材に面内方向の力が作用した際に、ボルト締結部に局部的な力が加わる可能性がある。 However, when a bolt is used to join the frame (column and beam) and the wall material (shear wall) as in Patent Document 1, the nut is pressed on one side of the wall material and the bolt is tightened on the other side. , It is necessary to work from both sides of the wall material. Further, when an in-plane force acts on the wall material, a local force may be applied to the bolt fastening portion.

本発明は上記事実を考慮して、ボルトを用いずに躯体と壁材とを接合できる耐震補強構造を提供することを目的とする。 In view of the above facts, an object of the present invention is to provide a seismic retrofitting structure capable of joining a frame and a wall material without using bolts.

請求項１の耐震補強構造は、建物の躯体と、前記躯体に対して横方向に隙間を空けて配置され、壁面が前記躯体と対面した状態で前記躯体における柱に取付けられた鋼板製の壁材と、前記壁材が前記柱と異なる前記躯体に取付けられた箇所と異なる箇所において前記隙間に設けられ、前記躯体及び前記壁材のそれぞれに、ボルトを用いず接着剤を用いて固定されることにより、前記壁材を前記躯体へさらに接合する接合手段と、を有する。 The seismic retrofitting structure according to claim 1 is a wall made of steel plate , which is arranged with a lateral gap between the building skeleton and the skeleton, and is attached to a pillar in the skeleton with the wall surface facing the skeleton. The material and the wall material are provided in the gap at a place different from the place where the wall material is attached to the skeleton different from the pillar, and are fixed to each of the skeleton and the wall material by using an adhesive without using bolts. Thereby, it has a joining means for further joining the wall material to the skeleton.

請求項１の耐震補強構造では、躯体に取付けられた壁材がさらに接合手段を介して躯体に接着接合される。躯体と壁材とを接合する接合作業は、壁材の片側（躯体側）から作業すればよく、ボルト接合のように壁材の両側から作業する必要がない。また壁材に対して、ボルト締結部に生じる局部的な力が加わることを抑制できる。 In the seismic retrofitting structure of claim 1, the wall material attached to the skeleton is further adhesively joined to the skeleton via a joining means. The joining work for joining the skeleton and the wall material may be performed from one side (frame side) of the wall material, and it is not necessary to work from both sides of the wall material as in the case of bolt joining. Further, it is possible to suppress the application of a local force generated at the bolt fastening portion to the wall material.

請求項２の耐震補強構造は、前記接合手段は前記壁材の面内方向に沿って前記隙間に配置された板材であり、前記柱と異なる前記躯体と前記板材との間及び前記板材と前記壁材との間に前記接着剤が充填されている。 Seismic reinforcement structure of claim 2, before Symbol joining means is a plate member disposed in said gap along a plane direction of the wall material, said post and said different skeleton and between the plate and the plate The adhesive is filled between the wall material and the wall material.

請求項２の耐震補強構造では、建物の躯体と壁材との間の隙間に板材が配置される。このため、躯体と壁材とを接合する接着剤の厚みが薄くなる。これにより、躯体と壁材との間の隙間に板材が配置されない場合と比較して、接着剤が硬化時に熱割れしにくい。
請求項３の耐震補強構造は、前記板材は縞鋼板である。 In the seismic retrofitting structure of claim 2, the plate material is arranged in the gap between the building frame and the wall material. Therefore, the thickness of the adhesive that joins the skeleton and the wall material becomes thin. As a result, the adhesive is less likely to be thermally cracked during curing as compared with the case where the plate material is not arranged in the gap between the skeleton and the wall material.
In the seismic retrofitting structure of claim 3, the plate material is a striped steel plate.

請求項４の耐震補強構造は、前記接合手段は、前記壁材に接着された板状部と、前記板状部から前記板状部の面外方向へ突出し前記柱と異なる前記躯体に接着された突出部と、を備えた鋼材である。 Seismic reinforcement structure of claim 4, before Symbol joining means includes bonding a plate-shaped portion which is bonded to the wall material, the plate-like portion the skeleton which protrudes in the out-of-plane direction different from the column from the plate-like portion It is a steel material provided with a protruding portion.

請求項４の耐震補強構造では、鋼材の板状部が壁材に接着され、板状部から面外方向に突出した突出部が躯体に接着されている。すわなち、躯体と壁材とが鋼材を介して接合される。これにより鋼材の突出部の突出幅を調整することで、鋼材と壁材との間の隙間を接着剤を充填するための適正な大きさとすることができる。 In the seismic retrofitting structure of claim 4 , the plate-shaped portion of the steel material is adhered to the wall material, and the protruding portion protruding from the plate-shaped portion in the out-of-plane direction is adhered to the skeleton. That is, the skeleton and the wall material are joined via a steel material. By adjusting the protruding width of the protruding portion of the steel material, the gap between the steel material and the wall material can be made an appropriate size for filling the adhesive.

本発明に係る耐震補強構造によると、ボルトを用いずに躯体と壁材とを接合できる。 According to the seismic retrofitting structure according to the present invention, the skeleton and the wall material can be joined without using bolts.

本発明の実施形態に係る耐震補強構造が適用される建物を示す正面図である。It is a front view which shows the building to which the seismic retrofitting structure which concerns on embodiment of this invention is applied. 本発明の実施形態に係る耐震補強構造が適用される建物を示す、図１における２−２線断面図である。FIG. 2 is a sectional view taken along line 2-2 in FIG. 1 showing a building to which the seismic retrofitting structure according to the embodiment of the present invention is applied. （Ａ）は本発明の実施形態に係る耐震補強構造において鋼板を用いた接合部が形成されるトラス梁を示す正面図かつ（Ｂ）におけるＡ−Ａ線断面図であり、（Ｂ）は（Ａ）におけるＢ−Ｂ線断面図及び図１における３−３線断面図である。(A) is a front view showing a truss beam in which a joint portion using a steel plate is formed in the seismic retrofitting structure according to the embodiment of the present invention, and (B) is a sectional view taken along line AA in (B). It is a sectional view taken along line BB in A) and the sectional view taken along line 3-3 in FIG. （Ａ）は図３（Ａ）における４Ａ−４Ａ線断面図であり、（Ｂ）は図３（Ａ）における４Ｂ−４Ｂ線断面図である。(A) is a sectional view taken along line 4A-4A in FIG. 3A, and FIG. 3B is a sectional view taken along line 4B-4B in FIG. 3A. （Ａ）は本発明の実施形態に係る耐震補強構造においてアングル材を用いた接合部が形成されたトラス梁を示す部分拡大側面図であり、（Ｂ）はアングル材及び縞鋼板を用いた変形例を示す部分拡大側面図である。(A) is a partially enlarged side view showing a truss beam in which a joint portion using an angle material is formed in the seismic retrofitting structure according to the embodiment of the present invention, and (B) is a deformation using an angle material and a striped steel plate. It is a partially enlarged side view which shows an example. 本発明の実施形態に係る耐震補強構造においてアングル材を用いた接合部が形成された床スラブを示す部分拡大側面図である。It is a partially enlarged side view which shows the floor slab which formed the joint part using the angle material in the seismic retrofitting structure which concerns on embodiment of this invention.

（耐震補強構造）
本実施形態に係る耐震補強構造は、図１に示すように、１階の床スラブ１４Ａを形成するコンクリートに根巻き支持された鋼製の柱２２と、柱２２に架設されたトラス梁２４、２６と、を備えた架構２０を有する建物１０に適用される。 (Seismic retrofitting structure)
As shown in FIG. 1, the seismic retrofitting structure according to the present embodiment includes a steel column 22 supported by a concrete root wrapping around the concrete forming the floor slab 14A on the first floor, and a truss beam 24 erected on the column 22. 26 and the building 10 having the frame 20 with.

（建物、躯体）
建物１０において、柱２２は４つの柱（柱２２Ｂ、図２参照）で構成された組柱とされている。図１において柱２２は１本のみが描かれているが、図２に示すように、柱２２Ｂが左右及び前後方向に隣接して配置されて１組の柱２２を形成している。また、図２に示すように柱２２Ｂにはそれぞれトラス梁２６における上弦材２６Ａ、下弦材２６Ｂが接合されている。同様に、図３に示すようにトラス梁２４における上弦材２４Ａ、下弦材２４Ｂが接合されている。 (Building, skeleton)
In the building 10, the pillar 22 is a set of pillars composed of four pillars (pillar 22B, see FIG. 2). Although only one pillar 22 is drawn in FIG. 1, as shown in FIG. 2, the pillars 22B are arranged adjacent to each other in the left-right and front-rear directions to form a set of pillars 22. Further, as shown in FIG. 2, the upper chord member 26A and the lower chord member 26B in the truss beam 26 are joined to the pillar 22B, respectively. Similarly, as shown in FIG. 3, the upper chord member 24A and the lower chord member 24B in the truss beam 24 are joined.

なお、図１の紙面前方向は図２における紙面右方向（矢印ＦＲ方向）に対応し、図１の紙面後ろ（奥）方向は図２における紙面左方向（矢印ＢＫ方向）に対応している。 The front direction of the paper in FIG. 1 corresponds to the right direction of the paper in FIG. 2 (arrow FR direction), and the back (back) direction of the paper in FIG. 1 corresponds to the left direction of the paper in FIG. 2 (arrow BK direction). ..

図２に示すように、建物１０においては２階の床スラブ１４Ｂが鉄筋コンクリート製とされ、床スラブ１４Ｂは、Ｈ形鋼の梁１６と、梁１６が架け渡された柱２２に支持されている。なお、柱２２を構成する柱２２Ｂは床スラブ１４Ｂを貫通する通し柱とされている。また、１階の床スラブ１４Ａと２階の床スラブ１４Ｂとの間には鉄筋コンクリート製の壁体１８が、柱２２Ｂの後方（矢印ＢＫ方向）に形成されている。 As shown in FIG. 2, in the building 10, the floor slab 14B on the second floor is made of reinforced concrete, and the floor slab 14B is supported by an H-shaped steel beam 16 and a column 22 over which the beam 16 is bridged. .. The pillar 22B constituting the pillar 22 is a through pillar penetrating the floor slab 14B. Further, a reinforced concrete wall body 18 is formed between the floor slab 14A on the first floor and the floor slab 14B on the second floor behind the pillar 22B (in the direction of arrow BK).

以下の説明においては、これらの床スラブ１４Ａ、１４Ｂ、梁１６、壁体１８、架構２０（柱２２及びトラス梁２４、２６）等を総称して、躯体１２と称することがある。 In the following description, these floor slabs 14A, 14B, beams 16, wall bodies 18, frames 20 (columns 22 and truss beams 24, 26) and the like may be collectively referred to as a skeleton 12.

（鋼板壁）
躯体１２における壁体１８及び床スラブ１４Ｂの上方には、本発明における壁材の一例としての鋼板壁３０が設けられている。鋼板壁３０は、柱２２Ｂ（躯体１２）との間に隙間Ｖ０を空けて配置されている。また鋼板壁３０は、鋼板壁３０の表面に溶接されたアングル材３０Ａと、柱２２Ｂの裏面に溶接されたアングル材２２Ａとを溶接又はボルト接合することで、柱２２Ｂ（躯体１２）に取付けられている。すなわち、鋼板壁３０は柱２２Ｂに取付けられて支持されている。 (Steel plate wall)
Above the wall body 18 and the floor slab 14B in the skeleton 12, a steel plate wall 30 as an example of the wall material in the present invention is provided. The steel plate wall 30 is arranged with a gap V0 between it and the pillar 22B (frame 12). Further, the steel plate wall 30 is attached to the pillar 22B (frame 12) by welding or bolting the angle material 30A welded to the surface of the steel plate wall 30 and the angle material 22A welded to the back surface of the pillar 22B. ing. That is, the steel plate wall 30 is attached to and supported by the pillar 22B.

（接合手段）
本実施形態に係る耐震補強構造は、柱２２Ｂ（躯体１２）に取付けられている鋼板壁３０を、さらに異なる接合手段を用いて躯体１２に接合することで、建物１０を耐震補強するものである。具体的には図１に示すように、鋼板壁３０は躯体１２に対して、接合部Ｊ１、Ｊ２、Ｊ３において接合される。以下に詳述するが、鋼板壁３０は、接合部Ｊ１においてトラス梁２４の下弦材２４Ｂに接合され、また、接合部Ｊ２においてトラス梁２６の下弦材２６Ｂに接合され、さらに、接合部Ｊ３において２階の床スラブ１４Ｂに接合される。 (Joining means)
The seismic retrofitting structure according to the present embodiment seismically strengthens the building 10 by joining the steel plate wall 30 attached to the column 22B (framework 12) to the frame 12 using a further different joining means. .. Specifically, as shown in FIG. 1, the steel plate wall 30 is joined to the skeleton 12 at the joints J1, J2, and J3. As will be described in detail below, the steel plate wall 30 is joined to the lower chord member 24B of the truss beam 24 at the joint portion J1, is joined to the lower chord member 26B of the truss beam 26 at the joint portion J2, and is further joined to the lower chord member 26B of the truss beam 26 at the joint portion J3. It is joined to the floor slab 14B on the second floor.

接合部Ｊ１の構造について説明する。図３（Ａ）に示すように、トラス梁２４における上弦材２４Ａと下弦材２４Ｂの間には、鉛直材２４Ｃ、斜材２４Ｄが架け渡されている。図３（Ｂ）に示すように、鉛直材２４Ｃ、斜材２４Ｄは何れも上弦材２４Ａ及び下弦材２４Ｂ（鋼板壁３０寄りの上弦材２４Ａ及び下弦材２４Ｂ）の裏面に接合されており、これらの鉛直材２４Ｃ、斜材２４Ｄと鋼板壁３０との間（即ちトラス梁２４と鋼板壁３０との間）には、幅Ｄ１の隙間Ｖ１が形成されている。接合部Ｊ１は、隙間Ｖ１をあけて配置されたトラス梁２４と鋼板壁３０とを、後述する接合手段としての縞鋼板４２及び接着剤を用いて接合した部分である。 The structure of the joint portion J1 will be described. As shown in FIG. 3A, a vertical member 24C and a diagonal member 24D are bridged between the upper chord member 24A and the lower chord member 24B in the truss beam 24. As shown in FIG. 3B, both the vertical member 24C and the diagonal member 24D are joined to the back surfaces of the upper chord member 24A and the lower chord member 24B (upper chord member 24A and lower chord member 24B near the steel plate wall 30). A gap V1 having a width D1 is formed between the vertical member 24C, the diagonal member 24D, and the steel plate wall 30 (that is, between the truss beam 24 and the steel plate wall 30). The joint portion J1 is a portion in which the truss beam 24 and the steel plate wall 30 arranged with a gap V1 are joined by using a striped steel plate 42 as a joining means described later and an adhesive.

接合部Ｊ１においては、図３（Ａ）に破線で示す縞鋼板４２が、鋼板壁３０の面内方向に沿って隙間Ｖ１に配置されている。縞鋼板４２は、鋼板を圧延して表面に凹凸を付けたチェッカープレートであり、図４（Ａ）に示すように、隙間Ｖ１の幅方向の略中央部に配置されている。斜材２４Ｄ（又は鉛直材２４Ｃ）と縞鋼板４２の間及び鋼板壁３０と縞鋼板４２の間にはそれぞれ接着剤（例えばエポキシ樹脂）が充填されている。これにより鋼板壁３０は、トラス梁２４の下弦材２４Ｂに接合される。なお、縞鋼板４２は本発明における板材の一例である。 In the joint portion J1, the striped steel plate 42 shown by the broken line in FIG. 3A is arranged in the gap V1 along the in-plane direction of the steel plate wall 30. The striped steel plate 42 is a checker plate obtained by rolling a steel plate to have irregularities on its surface, and is arranged at a substantially central portion in the width direction of the gap V1 as shown in FIG. 4A. An adhesive (for example, epoxy resin) is filled between the diagonal member 24D (or the vertical member 24C) and the striped steel plate 42, and between the steel plate wall 30 and the striped steel plate 42, respectively. As a result, the steel plate wall 30 is joined to the lower chord member 24B of the truss beam 24. The striped steel plate 42 is an example of a plate material in the present invention.

図４（Ｂ）に示すように、下弦材２４Ｂと斜材２４Ｄ（又は鉛直材２４Ｃ）とを接合するリベットＲと縞鋼板４２が干渉する位置には、縞鋼板４２に貫通孔が形成されている。これにより縞鋼板４２を隙間Ｖ１の幅方向の略中央部に配置することができる。 As shown in FIG. 4B, a through hole is formed in the striped steel plate 42 at a position where the rivet R joining the lower chord member 24B and the diagonal member 24D (or the vertical member 24C) and the striped steel plate 42 interfere with each other. There is. As a result, the striped steel plate 42 can be arranged at a substantially central portion in the width direction of the gap V1.

次に、接合部Ｊ２の構造について説明する。図１に示すように、接合部Ｊ２においては、接合部Ｊ１と同様に鋼板壁３０がトラス梁２６の下弦材２６Ｂに接合されるが、鉛直材２６Ｃ及び斜材２６Ｄは接合されていない。そして、図１に示す下弦材２６Ｂと鋼板壁３０との間（即ちトラス梁２６と鋼板壁３０との間）に形成された隙間Ｖ２の幅Ｄ２は、上述したトラス梁２４と鋼板壁３０との間に形成された隙間Ｖ１の幅Ｄ１よりも大きい。接合部Ｊ２は、隙間Ｖ２をあけて配置されたトラス梁２６と鋼板壁３０とを、後述する接合手段としてのアングル材４４及び接着剤を用いて接合した部分である。 Next, the structure of the joint portion J2 will be described. As shown in FIG. 1, in the joint portion J2, the steel plate wall 30 is joined to the lower chord member 26B of the truss beam 26 as in the joint portion J1, but the vertical member 26C and the diagonal member 26D are not joined. The width D2 of the gap V2 formed between the lower chord member 26B and the steel plate wall 30 shown in FIG. 1 (that is, between the truss beam 26 and the steel plate wall 30) has the above-mentioned truss beam 24 and the steel plate wall 30. It is larger than the width D1 of the gap V1 formed between the two. The joint portion J2 is a portion where the truss beam 26 and the steel plate wall 30 arranged with a gap V2 are joined by using an angle material 44 and an adhesive as a joining means described later.

図５（Ａ）に示すように、接合部Ｊ２においては、鋼板壁３０及び下弦材２６Ｂにアングル材４４が接着固定されている。具体的には鋼板壁３０の面内方向に沿って配置されたアングル材４４の板状部４４Ａが鋼板壁３０に接着され、板状部４４Ａから板状部４４Ａの面外方向へ突出した突出部４４Ｂが下弦材２６Ｂの下面に接着されている。突出部４４Ｂの突出幅は隙間Ｖ２の幅Ｄ２よりも広く形成され、下弦材２６Ｂと十分な接着面積を確保できる寸法とされている。なお、アングル材４４は本発明における鋼材の一例である。 As shown in FIG. 5A, in the joint portion J2, the angle member 44 is adhesively fixed to the steel plate wall 30 and the lower chord member 26B. Specifically, the plate-shaped portion 44A of the angle member 44 arranged along the in-plane direction of the steel plate wall 30 is adhered to the steel plate wall 30, and the plate-shaped portion 44A projects outward from the plate-shaped portion 44A. The portion 44B is adhered to the lower surface of the lower chord member 26B. The protruding width of the protruding portion 44B is formed wider than the width D2 of the gap V2, and is sized so as to secure a sufficient adhesive area with the lower chord member 26B. The angle material 44 is an example of a steel material in the present invention.

次に、接合部Ｊ３の構造について説明する。図２に示すように、鋼板壁３０は２階の床スラブ１４Ｂの上方に設置されているが、鋼板壁３０はアングル材３０Ａ、２２Ａを介して柱２２Ｂに取付けられているため、床スラブ１４Ｂに対しては構造的に切り離されている。接合部Ｊ３は、床スラブ１４Ｂ（躯体１２）と鋼板壁３０において、構造的に切り離された部分を後述するアングル材４６及び接着剤を用いて接合した部分である。 Next, the structure of the joint portion J3 will be described. As shown in FIG. 2, the steel plate wall 30 is installed above the floor slab 14B on the second floor, but since the steel plate wall 30 is attached to the pillar 22B via the angle members 30A and 22A, the floor slab 14B Is structurally separated. The joint portion J3 is a portion of the floor slab 14B (framework 12) and the steel plate wall 30 in which the structurally separated portions are joined using an angle member 46 and an adhesive, which will be described later.

図６に示すように、接合部Ｊ３においては、鋼板壁３０及び床スラブ１４Ｂにアングル材４６が接着固定されている。具体的にはアングル材４６の板状部４６Ａが鋼板壁３０に接着され、板状部４６Ａから板状部４６Ａの面外方向へ突出した突出部４６Ｂが床スラブ１４Ｂの上面に接着されている。なお、以下の説明において、縞鋼板４２、アングル材４４、４６を総称して接合手段４０と称することがある。 As shown in FIG. 6, in the joint portion J3, the angle member 46 is adhesively fixed to the steel plate wall 30 and the floor slab 14B. Specifically, the plate-shaped portion 46A of the angle member 46 is adhered to the steel plate wall 30, and the protruding portion 46B protruding from the plate-shaped portion 46A in the out-of-plane direction is adhered to the upper surface of the floor slab 14B. .. In the following description, the striped steel plate 42, the angle members 44, and 46 may be collectively referred to as the joining means 40.

（作用・効果）
本実施形態に係る耐震補強構造によると、接合部Ｊ１において、トラス梁２４（躯体１２）と鋼板壁３０とが、縞鋼板４２及び接着剤を用いて接合される。また接合部Ｊ２において、トラス梁２６（躯体１２）と鋼板壁３０とが、アングル材４４及び接着剤を用いて接合される。さらに接合部Ｊ３において、床スラブ１４Ｂ（躯体１２）と鋼板壁３０が、アングル材４６及び接着剤を用いて接合される。
これにより、躯体１２における柱２２Ｂに取付けられている鋼板壁３０が、さらに接合部Ｊ１、Ｊ２、Ｊ３によって躯体１２に接着接合される。これにより躯体１２の拘束箇所が増えるため建物１０の耐震性能が向上する。 (Action / effect)
According to the seismic retrofitting structure according to the present embodiment, the truss beam 24 (frame 12) and the steel plate wall 30 are joined to each other by using the striped steel plate 42 and the adhesive in the joint portion J1. Further, in the joint portion J2, the truss beam 26 (frame 12) and the steel plate wall 30 are joined by using the angle member 44 and the adhesive. Further, in the joint portion J3, the floor slab 14B (frame 12) and the steel plate wall 30 are joined by using the angle member 46 and the adhesive.
As a result, the steel plate wall 30 attached to the pillar 22B in the skeleton 12 is further adhesively joined to the skeleton 12 by the joint portions J1, J2, and J3. As a result, the number of restraint points of the skeleton 12 increases, so that the seismic performance of the building 10 is improved.

躯体１２と鋼板壁３０とを接合する接合作業は、鋼板壁３０の内側（躯体１２側）から作業すればよく、ボルト接合のように鋼板壁３０の両側から作業する必要がない。また鋼板壁３０に対して、ボルト締結部に生じる局部的な力が加わることを抑制できる。このため、施工しやすく局部破壊も生じにくい。 The joining work for joining the skeleton 12 and the steel plate wall 30 may be performed from the inside of the steel plate wall 30 (on the side of the skeleton 12), and it is not necessary to work from both sides of the steel plate wall 30 as in the case of bolt joining. Further, it is possible to suppress the application of a local force generated at the bolt fastening portion to the steel plate wall 30. Therefore, it is easy to construct and local destruction is unlikely to occur.

また、本実施形態に係る耐震補強構造によると、図４（Ａ）、（Ｂ）に示すように接合部Ｊ１において、トラス梁２４（躯体１２）と鋼板壁３０との間の隙間Ｖ１に縞鋼板４２が配置される。これにより、トラス梁２４と鋼板壁３０との間の隙間に縞鋼板４２が配置されない場合と比較して、トラス梁２４と鋼板壁３０とを接合する接着剤の厚みが薄くなる。このため、接着剤が硬化時に熱割れしにくい。 Further, according to the seismic retrofitting structure according to the present embodiment, as shown in FIGS. 4A and 4B, stripes are formed in the gap V1 between the truss beam 24 (framework 12) and the steel plate wall 30 at the joint portion J1. The steel plate 42 is arranged. As a result, the thickness of the adhesive for joining the truss beam 24 and the steel plate wall 30 becomes thinner than in the case where the striped steel plate 42 is not arranged in the gap between the truss beam 24 and the steel plate wall 30. Therefore, the adhesive is less likely to be thermally cracked when cured.

また、本実施形態に係る耐震補強構造によると、図５（Ａ）に示すように接合部Ｊ２において、アングル材４４の板状部４４Ａが鋼板壁３０に接着され、板状部４４Ａから面外方向に突出した突出部４４Ｂがトラス梁２６に接着されている。すわなち、トラス梁２６と鋼板壁３０とがアングル材４４を介して接合される。 Further, according to the seismic retrofitting structure according to the present embodiment, as shown in FIG. 5A, in the joint portion J2, the plate-shaped portion 44A of the angle member 44 is adhered to the steel plate wall 30, and is out of the plane from the plate-shaped portion 44A. A protruding portion 44B protruding in the direction is adhered to the truss beam 26. That is, the truss beam 26 and the steel plate wall 30 are joined via the angle member 44.

このため、図５（Ａ）に破線で図示するように、トラス梁２６と鋼板壁３０との間の隙間Ｖ２に例えば接合部Ｊ１と同様に縞鋼板４２を配置する場合と比較して、接着剤の厚みを任意の寸法に設定できる。または薄くできる。したがって接着剤の厚みを接着性能、耐久性などの観点から望ましい厚みにすることができる。 Therefore, as shown by the broken line in FIG. 5A, the striped steel plate 42 is bonded in the gap V2 between the truss beam 26 and the steel plate wall 30 as compared with the case where the striped steel plate 42 is arranged in the gap V2 like the joint portion J1. The thickness of the agent can be set to any size. Or you can make it thinner. Therefore, the thickness of the adhesive can be set to a desirable thickness from the viewpoint of adhesive performance, durability and the like.

また、本実施形態に係る耐震補強構造によると、図１に示すように地震時などにおいて躯体１２に対して横方向からの外力Ｑが加わった際に、正面視で互いに斜め方向に配置された接合部Ｊ１、Ｊ２間及び接合部Ｊ２、Ｊ３間の鋼板壁３０（網掛けＴで示す部分）が引張力に抵抗する引張ブレースとして機能する。このため躯体１２の変形が抑制される。 Further, according to the seismic retrofitting structure according to the present embodiment, as shown in FIG. 1, when an external force Q from the lateral direction is applied to the skeleton 12 at the time of an earthquake or the like, they are arranged diagonally to each other in the front view. The steel plate wall 30 (the portion indicated by the shaded T) between the joints J1 and J2 and between the joints J2 and J3 functions as a tensile brace that resists the tensile force. Therefore, the deformation of the skeleton 12 is suppressed.

なお、本実施形態では接合部Ｊ１において板材として縞鋼板４２を用いているが、本発明の実施形態はこれに限らない。例えば表面に凹凸が形成されていな平板を用いてもよいし、材質についても鋼のほか、アルミなどの各種金属や樹脂材料などを用いることができる。このような板材を用いても、隙間Ｖ１において接着剤の厚みを薄くすることができる。 In the present embodiment, the striped steel plate 42 is used as the plate material in the joint portion J1, but the embodiment of the present invention is not limited to this. For example, a flat plate having no unevenness on the surface may be used, and as the material, various metals such as aluminum and resin materials can be used in addition to steel. Even if such a plate material is used, the thickness of the adhesive can be reduced in the gap V1.

また、本実施形態では接合部Ｊ２においてアングル材４４の板状部４４Ａと鋼板壁３０とが直接接着されているが、本発明の実施形態はこれに限らない。例えば図５（Ｂ）に示すように、板状部４４Ａと鋼板壁３０との間に、接合部Ｊ１と同様に縞鋼板４２を配置してもよい。このような構成は、下弦材２６Ｂと鋼板壁３０との間に形成された隙間Ｖ３の幅Ｄ３が広い場合に好適である。 Further, in the present embodiment, the plate-shaped portion 44A of the angle member 44 and the steel plate wall 30 are directly bonded to each other at the joint portion J2, but the embodiment of the present invention is not limited to this. For example, as shown in FIG. 5B, a striped steel plate 42 may be arranged between the plate-shaped portion 44A and the steel plate wall 30 in the same manner as the joint portion J1. Such a configuration is suitable when the width D3 of the gap V3 formed between the lower chord member 26B and the steel plate wall 30 is wide.

また、本実施形態では鋼板壁３０と躯体１２とを接合部Ｊ１、Ｊ２、及び接合部Ｊ３で接合しているが、本発明の実施形態はこれに限らない。例えば「接合部Ｊ１及び接合部Ｊ２」、「接合部Ｊ２及び接合部Ｊ３」又は「接合部Ｊ１及び接合部Ｊ３」などとすることができる。さらに、鋼板壁３０は、接合部Ｊ１、Ｊ２、及び接合部Ｊ３の何れか１箇所において躯体１２に接合されるものとしてもよい。このように構成しても、接合部Ｊ１、Ｊ２、Ｊ３の何れも形成されていない構成と比較して、建物１０の耐震性能を高めることができる。 Further, in the present embodiment, the steel plate wall 30 and the skeleton 12 are joined by the joint portions J1, J2, and the joint portion J3, but the embodiment of the present invention is not limited to this. For example, it may be "joint portion J1 and joint portion J2", "joint portion J2 and joint portion J3", or "joint portion J1 and joint portion J3". Further, the steel plate wall 30 may be joined to the skeleton 12 at any one of the joint portions J1, J2 and the joint portion J3. Even with such a configuration, the seismic performance of the building 10 can be improved as compared with a configuration in which none of the joint portions J1, J2, and J3 is formed.

また、本実施形態において鋼板壁３０は、下弦材２４Ｂに対し鉛直材２４Ｃ、斜材２４Ｄが接合された接点（接合部Ｊ１）においてトラス梁２４と接合されているが、本発明の実施形態はこれに限らない。例えば接合部Ｊ２と同様に、鉛直材２４Ｃ、斜材２４Ｄの何れも接合されていない場所において鋼板壁３０と下弦材２４Ｂとを接合してもよい。また、鋼板壁３０と下弦材２４Ｂは接合せず、鋼板壁３０と上弦材２４Ａ、鉛直材２４Ｃ及び斜材２４Ｄの何れかとを接合してもよい。さらに接合手段４０としては、縞鋼板４２、アングル材４６を適宜選択して用いることができ、縞鋼板４２及びアングル材４６を併用してもよい。 Further, in the present embodiment, the steel plate wall 30 is joined to the truss beam 24 at the contact point (joint portion J1) to which the vertical member 24C and the diagonal member 24D are joined to the lower chord member 24B. Not limited to this. For example, similarly to the joint portion J2, the steel plate wall 30 and the lower chord member 24B may be joined at a place where neither the vertical member 24C nor the diagonal member 24D is joined. Further, the steel plate wall 30 and the lower chord member 24B may not be joined, but the steel plate wall 30 may be joined to any of the upper chord member 24A, the vertical member 24C, and the diagonal member 24D. Further, as the joining means 40, the striped steel plate 42 and the angle member 46 can be appropriately selected and used, and the striped steel plate 42 and the angle member 46 may be used in combination.

同様に、鋼板壁３０がトラス梁２６と接合される場所も任意の場所に設定することができ、任意の接合手段４０を用いることができる。 Similarly, the place where the steel plate wall 30 is joined to the truss beam 26 can be set to an arbitrary place, and any joining means 40 can be used.

また、本実施形態において鋼板壁３０が接合される躯体１２の例としてトラス梁２４、２６及び床スラブ１４Ｂを挙げたが、本発明の実施形態はこれに限らない。例えば鋼板壁３０は、任意の接合手段４０を用いて柱２２Ｂに接合してもよいし、図示しないＨ形鋼の梁、鉄筋コンクリート製の柱、梁に接合してもよい。 Further, in the present embodiment, the truss beams 24 and 26 and the floor slab 14B are mentioned as examples of the skeleton 12 to which the steel plate wall 30 is joined, but the embodiment of the present invention is not limited to this. For example, the steel plate wall 30 may be joined to the column 22B by using an arbitrary joining means 40, or may be joined to an H-shaped steel beam, a reinforced concrete column, or a beam (not shown).

また、本実施形態において鋼板壁３０は、アングル材３０Ａ、２２Ａを用いて柱２２Ｂに取付けられているが、本発明の実施形態はこれに限らない。つまり、接合部Ｊ１、Ｊ２、Ｊ３以外の部分における躯体１２に対する鋼板壁３０の取付け構造は、任意の構造とすることができる。例えばトラス梁２４、２６に固定されていてもよいし、床スラブ１４Ｂに固定されていてもよい。このような構成としても、さらに接合部Ｊ１、Ｊ２、Ｊ３において躯体１２と鋼板壁３０とを接合することで、建物１０の耐震性を高めることができる。 Further, in the present embodiment, the steel plate wall 30 is attached to the pillar 22B by using the angle members 30A and 22A, but the embodiment of the present invention is not limited to this. That is, the mounting structure of the steel plate wall 30 to the skeleton 12 in the portions other than the joint portions J1, J2, and J3 can be any structure. For example, it may be fixed to the truss beams 24 and 26, or may be fixed to the floor slab 14B. Even with such a configuration, the seismic resistance of the building 10 can be improved by further joining the skeleton 12 and the steel plate wall 30 at the joints J1, J2, and J3.

また、本実施形態においては図４（Ａ）に示すように、接合部Ｊ１において縞鋼板４２が隙間Ｖ１の幅方向の略中央部に配置され、斜材２４Ｄと縞鋼板４２の間及び鋼板壁３０と縞鋼板４２の間にそれぞれ接着剤が充填されているものとしたが、本発明の実施形態はこれに限らない。例えば図３（Ｂ）に二点鎖線で示すように、縞鋼板４２を斜材２４Ｄの裏面に溶接し、接着剤は鋼板壁３０と縞鋼板４２の間にのみ充填してもよい。また、接合部Ｊ２、Ｊ３においても、適宜溶接を用いることができる。このように、本実施形態に係る耐震補強構造においては、溶接と接着とを併用してもよい。溶接を併用することで、接合強度を高めることができる。 Further, in the present embodiment, as shown in FIG. 4A, the striped steel plate 42 is arranged in the substantially central portion of the gap V1 in the width direction in the joint portion J1, and is located between the diagonal member 24D and the striped steel plate 42 and the steel plate wall. It is assumed that the adhesive is filled between the 30 and the striped steel plate 42, but the embodiment of the present invention is not limited to this. For example, as shown by the alternate long and short dash line in FIG. 3B, the striped steel plate 42 may be welded to the back surface of the diagonal member 24D, and the adhesive may be filled only between the steel plate wall 30 and the striped steel plate 42. Welding can also be appropriately used at the joints J2 and J3. As described above, in the seismic retrofitting structure according to the present embodiment, welding and adhesion may be used in combination. By using welding together, the joint strength can be increased.

１２躯体
１４Ｂ床スラブ（躯体）
２２Ｂ柱（躯体）
２２柱（躯体）
２４トラス梁（躯体）
２６トラス梁（躯体）
３０鋼板壁（壁材）
４０接合手段
４２縞鋼板（板材、接合手段）
４４アングル材（鋼材、接合手段）
４４Ａ板状部
４４Ｂ突出部
４６アングル材（接合手段） 12 skeleton 14B floor slab (skeleton)
22B pillar (framework)
22 pillars (framework)
24 Truss beam (framework)
26 Truss beam (framework)
30 Steel plate wall (wall material)
40 Joining means 42 Striped steel plate (plate material, joining means)
44 Angle material (steel material, joining means)
44A Plate-shaped portion 44B Protruding portion 46 Angle material (joining means)

Claims

The skeleton of the building and
A wall material made of steel plate , which is arranged with a lateral gap with respect to the skeleton and is attached to a pillar in the skeleton with the wall surface facing the skeleton.
A joining means provided in the gap and fixed to each of the skeleton and the wall material different from the pillars by using an adhesive without using bolts to further join the wall material to the skeleton.
Seismic retrofitting structure with.

Before Symbol joining means is a plate member disposed in said gap along a plane direction of the wall material, the adhesive between the pillar and said different skeleton and between the plate and said plate member and said wall member The seismic retrofitting structure according to claim 1, wherein the agent is filled.

The seismic retrofitting structure according to claim 2, wherein the plate material is a striped steel plate.

Before Symbol joining means, comprising a plate-like portion bonded to the wall material, and a protruding portion that is bonded to the skeleton of projecting different from the pillar in the out-of-plane direction of the plate-like portion from the plate portion The seismic retrofitting structure according to claim 1, which is a steel material.