JPH09310509A - Earthquake resistant reinforcing construction of existing building - Google Patents
Earthquake resistant reinforcing construction of existing buildingInfo
- Publication number
- JPH09310509A JPH09310509A JP12884096A JP12884096A JPH09310509A JP H09310509 A JPH09310509 A JP H09310509A JP 12884096 A JP12884096 A JP 12884096A JP 12884096 A JP12884096 A JP 12884096A JP H09310509 A JPH09310509 A JP H09310509A
- Authority
- JP
- Japan
- Prior art keywords
- existing building
- seismic
- girder
- reinforcing
- earthquake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、板状集合住宅など
のRC造またはSRC造の既設建屋の耐震補強構造に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic retrofit structure for an RC or SRC existing building such as a plate-shaped housing complex.
【0002】[0002]
【従来の技術】従来、RC造またはSRC造で構築され
る板状集合住宅等の既設建屋では、図3に示すように梁
1,1間方向(図中X方向)に対向する柱2,2…同士
を間仕切り壁3,3…で接続し、これら間仕切り壁3,
3…間にそれぞれ各住戸を構成するようになっている。
また、梁1,1間方向の外方両側縁の桁行方向(図中Y
方向)には、一方に廊下4が形成され、他方にバルコニ
ー5が形成されている。そして、各住戸を構成する前記
間仕切り壁3,3…間には、廊下4側に図外のドアを設
けると共に、バルコニー5側には図外のガラス戸等を建
て込むようにしている。2. Description of the Related Art Conventionally, in an existing building such as a plate-shaped apartment house constructed by RC construction or SRC construction, as shown in FIG. 3, columns 2 facing each other in the direction between the beams 1 and 1 (X direction in the figure). 2 ... are connected to each other by partition walls 3, 3 ,.
3 ... Each housing unit is configured in between.
In addition, the girder direction of both outer edges in the direction between the beams 1 and 1 (Y in the figure)
In the direction), a corridor 4 is formed on one side and a balcony 5 is formed on the other side. An unillustrated door is provided on the corridor 4 side between the partition walls 3, 3... Constituting each dwelling unit, and an unillustrated glass door or the like is built on the balcony 5 side.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、かかる
従来の既設建屋にあっては、間仕切り壁3,3…が存在
する梁1,1間方向(X方向)は、これら間仕切り壁
3,3…が耐震壁となって地震に対する必要強度を確保
することができている一方で、桁行方向(Y方向)に関
しては、各住戸の廊下4やバルコニー5に通ずるドアや
ガラス戸のために開口面積が大きく、地震に対する十分
な強度を確保することが難しかった。However, in such a conventional existing building, in the direction (X direction) between the beams 1, 1 in which the partition walls 3, 3,... Exist, these partition walls 3, 3,. While the required strength against earthquakes can be secured by forming a seismic wall, the opening area is large in the girder direction (Y direction) because of the doors and glass doors that lead to the corridor 4 and balcony 5 of each dwelling unit. However, it was difficult to secure sufficient strength against earthquakes.
【0004】上記既設建屋の桁行方向の強度を増強する
手法として、柱2,2…の外周を鉄板6で巻いたり、柱
2,2…や間仕切り壁3,3…にこれより桁行方向に向
かって一部耐震壁7,8を増設する方法などが考えられ
る。しかしながら、このような補強工事は各住戸の部屋
内に及ぶこととなるため、各住戸一戸一戸ごとに個別に
工事を行わねばならないとともに、各住戸にあっても居
住者の都合を考慮しつつ家具の移動や防塵,防音等の養
生を施した上で工事を行う必要があって施工性が良くな
く、さらにはこのような配慮をしても居住者の日常生活
に著しい支障をきたし、場合によっては工事期間中の居
住者の移転などをも考慮する必要があって、施工上種々
の問題があると考えられる。As a method of increasing the strength in the girder direction of the existing building, the outer periphery of the pillars 2, 2,... Is wound with an iron plate 6, or the pillars 2, 2,. It is conceivable to add a part of the earthquake-resistant walls 7 and 8. However, since such reinforcement work will extend into the room of each dwelling unit, each dwelling unit must be individually constructed, and even in each dwelling unit, the furniture will be considered while considering the convenience of the resident. It is necessary to carry out the construction after moving, dust-proofing, and sound-proofing, etc., and the workability is not good. Furthermore, even if such consideration is taken, it will seriously hinder the resident's daily life. It is necessary to consider the relocation of residents during the construction period, and there are various problems in construction.
【0005】そこで、本発明はかかる従来の課題に鑑み
て、住戸使用を維持できかつ居住者の日常生活を阻害す
ることなく、震災被害を低減できる補強工事を効率良く
遂行できるようにした既設建屋の耐震補強構造を提供す
ることを目的とする。In view of such conventional problems, the present invention has already been made to efficiently carry out a reinforcement work that can maintain the use of dwelling units and reduce the damage of the earthquake without hindering the resident's daily life. It is intended to provide a seismic reinforcement structure for a building.
【0006】[0006]
【課題を解決するための手段】かかる目的を達成するた
めに本発明の既設建屋の耐震補強構造は、梁間方向に沿
う間仕切り壁を桁行方向に複数並設してこれら間仕切り
壁間を室空間としたRC造またはSRC造の既設建屋に
おいて、該既設建屋の桁行方向両端部の少なくとも一端
部外方に耐震要素を増設し、該耐震要素をダンパーを介
して既設建屋に接続する。In order to achieve such an object, the seismic-proof reinforcement structure of an existing building of the present invention has a plurality of partition walls along the beam-to-beam direction arranged side by side in the girder direction, and these partition walls form a room space. In the existing building of RC construction or SRC construction, a seismic element is added outside at least one end of both ends in the girder direction of the existing building, and the seismic element is connected to the existing building via a damper.
【0007】また、かかる既設建屋の耐震補強構造にお
いて、前記耐震要素を前記既設建屋の桁行方向両端部に
増設した場合に、これら両耐震要素間を補強ガーダーで
連結し、この補強ガーダーをダンパーを介して既設建屋
に接続するようにしてもよい。In addition, in the seismic retrofit structure of the existing building, when the seismic resistant elements are added to both ends of the existing building in the girder direction, the seismic resistant elements are connected by a reinforcing girder, and the reinforcing girder is connected to a damper. You may make it connect to an existing building through.
【0008】したがって、本発明の既設建屋の耐震補強
構造にあっては、既設建屋の桁行方向両端部の少なくと
も一端部外方に耐震要素が増設され、かつこの耐震要素
が既設建屋に対してダンパーを介して接続されるので、
地震力等の外力が作用した場合には、ダンパーが既設建
屋および耐震要素相互間に発生する相対変位で作動して
既設建屋への地震入力を吸収し、これにより地震に対す
る既設建屋の振動応答量を低減させることができると共
に、当該耐震要素によって既設建屋に加わる地震力を負
担させることができて、これらダンパーおよび耐震要素
により既設建屋の震災被害を大幅に低減することができ
る。Therefore, in the seismic retrofit structure of the existing building of the present invention, the seismic resistant element is added outside at least one end of both ends of the existing building in the girder direction, and the seismic resistant element is attached to the damper of the existing building. Is connected via
When an external force such as seismic force is applied, the damper operates by the relative displacement that occurs between the existing building and the seismic resistant element to absorb the earthquake input to the existing building, and the vibration response amount of the existing building to the earthquake It is possible to reduce the earthquake damage, and the seismic force can be applied to the existing building by the seismic element, and the damper and the seismic element can significantly reduce the earthquake damage of the existing building.
【0009】そして、前記耐震要素およびダンパーを増
設する耐震補強工事期間中にあっても、これら耐震要素
等が既設建屋の外部に取り付けられることから住戸使用
を継続することができ、当該工事によって日常生活が阻
害されることはない。このように居住者の日常生活に支
障をきたさないようにして上記耐震要素等を増設できる
ことにより、耐震補強工事自体を効率よく施工すること
ができて工期を短縮化でき、震災被害の低減と短期工事
という両面で居住者にとって好ましい耐震補強構造を得
ることができる。Even during the seismic retrofitting work for adding the seismic resistant elements and dampers, since these seismic resistant elements are attached to the outside of the existing building, it is possible to continue using the dwelling unit, and the construction can be carried out on a daily basis. Life will not be hindered. In this way, by adding the above-mentioned seismic resistant elements so as not to hinder the daily life of residents, the seismic retrofitting work itself can be efficiently constructed, the construction period can be shortened, and the damage from the earthquake can be reduced. It is possible to obtain a seismic strengthening structure that is suitable for residents in terms of both short-term construction.
【0010】また、かかる既設建屋の耐震補強構造にお
いて、耐震要素を既設建屋の桁行方向両端部に増設した
場合には、これら両耐震要素間を補強ガーダーで連結す
るとともに、この補強ガーダーをダンパーを介して既設
建屋に接続することにより、この補強ガーダーで両耐震
要素を連結して相互に拘束できることから、既設建屋を
さらに補強することができるとともに、既設建屋への地
震入力を補強ガーダーとの間のこのダンパーでも吸収さ
せて低減させることができ、効果的に既設建屋への地震
入力を抑えて耐震補強することができる。Further, in the seismic retrofit structure of the existing building, when seismic resistant elements are added to both ends of the existing building in the girder direction, both seismic resistant elements are connected by a reinforcing girder, and the reinforcing girder is attached with a damper. By connecting it to the existing building through this, it is possible to connect both seismic elements with this reinforcing girder and restrain them from each other, so that the existing building can be further reinforced and the seismic input to the existing building is This damper can also be absorbed and reduced, effectively suppressing seismic input to the existing building and providing seismic reinforcement.
【0011】[0011]
【発明の実施の形態】以下、本発明の実施形態を、添付
図面を参照して詳細に説明する。図1,図2は本発明の
一実施形態を示す既設建屋の耐震補強構造で、図1は既
設建屋を任意の階で切断した断面平面図、図2は既設建
屋全体の正面図である。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 and 2 show an earthquake-proof reinforcing structure for an existing building showing an embodiment of the present invention. FIG. 1 is a cross-sectional plan view of the existing building cut at an arbitrary floor, and FIG. 2 is a front view of the entire existing building.
【0012】本実施形態は基本的には、梁間方向(X方
向)に沿う間仕切り壁16を桁行方向(Y方向)に複数
並設してこれら間仕切り壁16間を室空間、すなわち住
戸18としたRC造またはSRC造の既設建屋10にお
いて、既設建屋10の桁行方向(Y方向)両端部外方に
耐震要素たる増設棟24,24を一対増設し、これら増
設棟24,24をダンパー26を介して既設建屋10に
接続して構成される。また、増設棟24,24を既設建
屋10の桁行方向(Y方向)両端部に増設していること
から、これら両増設棟24,24間を補強ガーダー28
で連結し、さらにこの補強ガーダー28をダンパー30
を介して既設建屋10に接続するようにしている。In the present embodiment, basically, a plurality of partition walls 16 along the beam direction (X direction) are arranged in parallel in the girder direction (Y direction), and these partition walls 16 form a room space, that is, a dwelling unit 18. In the existing building 10 made of RC or SRC, a pair of additional buildings 24, 24, which are seismic elements, are installed outside both ends of the existing building 10 in the column direction (Y direction). And is connected to the existing building 10. Further, since the additional buildings 24, 24 are added to both ends of the existing building 10 in the column direction (Y direction), the reinforcement girder 28 is provided between the two additional buildings 24, 24.
And connect this reinforcing girder 28 to the damper 30.
It is connected to the existing building 10 via.
【0013】本実施形態の既設建屋10は従来と同様に
RC造またはSRC造の板状集合住宅として構築された
ものであって、桁行方向(Y方向)に平行に2列に並ん
だ各既設柱12,12…間それぞれが一対の既設梁1
4,14で接続されている。そして、前記梁14,14
間方向(X方向)にそれぞれ対向する既設柱12,12
…が、この梁間方向(X方向)に沿って設けた間仕切り
壁16,16…で接続されることにより、これら間仕切
り壁16,16…間に室空間である各住戸18,18…
が構成される。The existing building 10 of the present embodiment is constructed as an RC or SRC plate-like housing similar to the conventional one, and each existing building is arranged in two rows in parallel to the column row direction (Y direction). A pair of existing beams 1 between columns 12, 12 ...
It is connected by 4,14. Then, the beams 14, 14
Existing columns 12, 12 facing each other in the space direction (X direction)
, Are connected by the partition walls 16, 16 provided along the beam-to-beam direction (X direction), so that the dwelling units 18, 18 which are room spaces between the partition walls 16, 16 ...
Is configured.
【0014】また、前記既設建屋10の梁14,14間
方向の片側(図1中上方)には廊下20が、かつ、他側
(図1中下方)にはバルコニー22がそれぞれ桁行方向
(Y方向)に形成されている。A corridor 20 is provided on one side (upper side in FIG. 1) of the existing building 10 between the beams 14 and 14, and a balcony 22 is provided on the other side (lower side in FIG. 1) in the column direction (Y). Direction).
【0015】ここで本実施形態にあっては、前記既設建
屋10の桁行方向(Y方向)両端部の外側には、既設建
屋10から間隔を隔てて一階から最上階に達する閉断面
構造の一対の増設棟24,24を耐震要素として増築
し、更にこれら増設棟24,24をダンパー26,26
…を介して既設建屋10に接続するようにしている。Here, in the present embodiment, a closed cross-section structure is provided outside the both ends of the existing building 10 in the girder direction (Y direction) to reach from the first floor to the top floor at a distance from the existing building 10. A pair of extension buildings 24, 24 are added as seismic elements, and these extension buildings 24, 24 are further dampers 26, 26.
... is connected to the existing building 10 via.
【0016】これら増設棟24,24は、一対の既設梁
14,14位置それぞれに対応させて、それらの延長上
に桁行方向に沿って並設した一対の横壁24a,24a
…と、これら横壁24a,24a…の両端部に梁間方向
に沿って並設した一対の縦壁24b,24b…とによっ
て、それぞれ閉断面矩形状の中空架構体に構築される。These additional buildings 24, 24 are provided with a pair of lateral walls 24a, 24a, which are arranged in parallel along the girder direction on their extensions corresponding to the positions of the pair of existing beams 14, 14, respectively.
, And a pair of vertical walls 24b, 24b, which are arranged side by side in the beam-to-beam direction at both ends of these horizontal walls 24a, 24a, respectively, to form a hollow frame structure having a rectangular cross section.
【0017】また、前記ダンパー26,26…は図2中
左側に示すように、既設建屋10の各階毎に等間隔で配
置してもよく、また、同図中右側に示すように高さ方向
に沿って既設建屋10と増設棟24,24との相対変位
量の大小を考慮して、相対変位量が大きくなると考えら
れる高さ位置に集中的に配置することもできる。更に、
前記ダンパー26,26…は図1中左側に示すように、
増設棟24の梁間方向両側部に既設梁14,14位置に
対応させて2箇所配置してもよく、またさらに、同図中
右側に示すように縦壁24bと間仕切り壁16との間に
も設けて、既設建屋10の梁間方向中央部をも含めて3
箇所配置することもできる。Further, the dampers 26, 26 ... May be arranged at equal intervals on each floor of the existing building 10 as shown on the left side in FIG. 2, and in the height direction as shown on the right side in FIG. In consideration of the magnitude of the relative displacement between the existing building 10 and the additional buildings 24, 24, it is possible to intensively arrange them at a height position where the relative displacement is considered to be large. Furthermore,
As shown on the left side of FIG. 1, the dampers 26, 26 ...
Two positions may be arranged on both sides of the extension wing 24 in the beam-to-beam direction corresponding to the positions of the existing beams 14 and 14, and further, as shown on the right side of the figure, also between the vertical wall 24b and the partition wall 16. Installed, including the center of the existing building 10 between the beams 3
It is also possible to place it in several places.
【0018】また前記一対の増設棟24,24の各頂部
には、既設建屋10の屋上10aより上方に突設させて
突設部分32,32が形成され、これら突設部分32,
32間にはこれらを連結する鉄骨製の補強ガーダー28
が架設されている。補強ガーダー28は、屋上10aを
覆うように当該屋上10aの上方に適宜間隔を隔てて配
置されている。この補強ガーダー28と既設建屋10と
の間にもダンパー30,30…が介設され、これらダン
パー30,30…によって補強ガーダー28と既設建屋
10の屋上10aとを接続している。Further, projecting portions 32, 32 are formed on the tops of the pair of extension buildings 24, 24 so as to project above the roof 10a of the existing building 10, and these projecting portions 32,
Steel reinforcement girder 28 for connecting these between 32
Has been erected. The reinforcing girders 28 are arranged at appropriate intervals above the roof 10a so as to cover the roof 10a. Dampers 30, 30 ... Are also interposed between the reinforcing girder 28 and the existing building 10, and the dampers 30, 30 ... Connect the reinforcing girder 28 and the roof 10a of the existing building 10 to each other.
【0019】上述したように本実施形態の既設建屋10
の耐震補強構造にあっては、既設建屋10の桁行方向
(Y方向)両端部外方に耐震要素として機能する増設棟
24,24を増設するとともに、この増設棟24,24
を既設建屋10に対してダンパー26,26…を介して
接続するようにしたので、地震力等の外力が作用した場
合には、既設建屋10および増設棟24,24相互間に
発生する相対変位で作動するダンパー26,26…によ
って既設建屋10への地震入力を吸収させ、これにより
地震に対する既設建屋10の振動応答量を低減させるこ
とができると共に、さらにまた増設棟24,24によっ
て既設建屋10に加わる地震力を負担させることができ
て、これらダンパー26,26…および増設棟24,2
4により既設建屋10の震災被害を大幅に低減すること
ができる。As described above, the existing building 10 of this embodiment
In the seismic strengthening structure of No. 2, the additional buildings 24, 24 functioning as seismic resistant elements are added outside both ends of the existing building 10 in the girder direction (Y direction), and the additional buildings 24, 24
Is connected to the existing building 10 via the dampers 26, 26 ... Therefore, when an external force such as seismic force is applied, the relative displacement generated between the existing building 10 and the extension buildings 24, 24. The seismic input to the existing building 10 can be absorbed by the dampers 26, 26 that operate in accordance with the above, and thereby the vibration response amount of the existing building 10 to the earthquake can be reduced, and the extension buildings 24 and 24 can also be used to further reduce the vibration of the existing building 10. It is possible to bear the seismic force applied to the dampers 26, 26 ... and the extension buildings 24, 2
4, the damage to the existing building 10 due to the earthquake can be greatly reduced.
【0020】そして、前記増設棟24,24およびダン
パー26,26…を増設する耐震補強工事期間中にあっ
ても、これら増設棟24,24等が既設建屋10の外部
に取り付けられることから住戸使用を継続することがで
き、当該工事によって日常生活が阻害されることはな
い。このように居住者の日常生活に支障をきたさないよ
うにして上記増設棟24,24等を増設できることによ
り、耐震補強工事自体を効率よく施工することができて
工期を短縮化でき、震災被害の低減と短期工事という両
面で居住者にとって好ましい耐震補強構造を得ることが
できる。Even during the seismic retrofitting work for adding the additional buildings 24, 24 and the dampers 26, 26 ..., these additional buildings 24, 24 etc. are attached to the outside of the existing building 10 so that they can be used as dwelling units. Can be continued and the construction will not interfere with daily life. In this way, the above-mentioned additional buildings 24, 24, etc. can be added without disturbing the daily life of the residents, so that the seismic retrofitting work itself can be efficiently constructed and the construction period can be shortened, resulting in damage from the earthquake. It is possible to obtain a seismic strengthening structure that is suitable for residents in terms of both reduction of work and short-term construction.
【0021】また、既設建屋10の桁行方向(Y方向)
両端部に増設した両増設棟24,24間を補強ガーダー
28で連結するとともに、この補強ガーダー28をダン
パー30,30…を介して既設建屋10に接続するよう
にしたので、この補強ガーダー28で両増設棟24,2
4を連結して相互に拘束でき、既設建屋10をさらに補
強することができるとともに、既設建屋10への地震入
力を補強ガーダー28との間のこのダンパー30,30
…でも吸収させて低減させることができ、効果的に既設
建屋10への地震入力を抑えて耐震補強することができ
る。Further, the column direction of the existing building 10 (Y direction)
Since the reinforcement girders 28 are connected between the two extension buildings 24, 24 which are additionally installed at both ends, and the reinforcement girders 28 are connected to the existing building 10 via the dampers 30, 30, ... Both expansion buildings 24, 2
4 can be connected to each other and can be restrained from each other, the existing building 10 can be further reinforced, and the seismic input to the existing building 10 can be connected to the reinforcing girder 28 by the dampers 30,
... can be absorbed and reduced, and the seismic input to the existing building 10 can be effectively suppressed and seismic strengthening can be performed.
【0022】更に、前記増設棟24,24は既設建屋1
0の側部に閉断面矩形状の中空架構体として構築される
ので、この増設棟24,24によって形成される空間を
収納庫等のトランクルームや階段スペースとして有効利
用することもできる。Further, the additional buildings 24, 24 are the existing building 1
Since it is constructed as a hollow frame structure having a rectangular closed cross section on the side of 0, the space formed by the additional buildings 24, 24 can be effectively used as a trunk room such as a storage room or a stair space.
【0023】また、本実施形態では、補強ガーダー28
を既設建屋10の屋上10a上方に架設するようにした
ので、当該屋上10aを補強ガーダー28で覆って全天
候化することができる。Further, in this embodiment, the reinforcing girder 28
Is installed above the roof 10a of the existing building 10, it is possible to cover the roof 10a with the reinforcing girder 28 to achieve all weather conditions.
【0024】本発明では前記補強ガーダー28は必ずし
も必要ではなく、耐震要素としての上記増設棟24,2
4で既設建屋10を補強する構造を備えていれば良い。In the present invention, the reinforcing girder 28 is not always necessary, and the expansion buildings 24 and 2 as seismic elements are required.
It suffices if the structure 4 for reinforcing the existing building 10 is provided.
【0025】また、上記実施形態では耐震要素として、
横壁24a,24aと縦壁24b,24bとによって閉
断面矩形状の増設棟24,24を構成した場合を開示し
たが、縦壁24b,24bを省略して一対の横壁24
a,24aを平行に張り出しただけの構成としたり、そ
の他これら壁24a,24a…,24b,24b…を適
宜レイアウトして適当な耐震架構を構成すればよい。更
に、前記増設棟24,24を既設建屋10の両端部に構
築した場合を開示したが、既設建屋10の片側にのみ構
築する形態でも良い。In the above embodiment, the seismic element is
Although it has been disclosed that the horizontal walls 24a, 24a and the vertical walls 24b, 24b constitute the extension buildings 24, 24 having a rectangular cross section, the vertical walls 24b, 24b are omitted and the pair of horizontal walls 24 are omitted.
a and 24a may be simply extended in parallel, or the walls 24a, 24a ..., 24b, 24b ... may be appropriately laid out to form an appropriate seismic frame. Furthermore, although the case where the additional buildings 24, 24 are constructed at both ends of the existing building 10 has been disclosed, a configuration in which they are constructed only on one side of the existing building 10 may be adopted.
【0026】またさらに上記実施形態では、耐震要素を
壁構造によって構成する場合を例示したがこれに限るこ
となく、縦壁24b…についてはこれを梁としたり、ま
た全体についてもブレース架構や、振動吸収機能をもた
せた周知の各種構造材を採用して耐震要素を構成しても
良いことはもちろんである。Further, in the above embodiment, the case where the seismic resistant element is constituted by the wall structure has been exemplified, but the present invention is not limited to this, and the vertical walls 24b ... Can be made into beams, or the whole can be braced frames or vibrations. Needless to say, the seismic resistant element may be constructed by adopting various well-known structural materials having an absorbing function.
【0027】また上記実施形態では、補強ガーダー28
を屋上10a上方に架設した場合を説明したが、既設建
屋10の両側面若しくは片面に沿って配置して増設棟2
4,24間を接続するように構成しても良い。In the above embodiment, the reinforcing girder 28 is used.
The case where the building is installed above the roof 10a has been described, but the additional building 2 is installed along both sides or one side of the existing building 10.
You may comprise so that 4 and 24 may be connected.
【0028】[0028]
【発明の効果】以上説明したように本発明の請求項1に
示す既設建屋の耐震補強構造にあっては、既設建屋の桁
行方向両端部の少なくとも一端部外方に耐震要素を増設
するとともに、この耐震要素を既設建屋に対してダンパ
ーを介して接続するようにしたので、地震力等の外力が
作用した場合には、既設建屋および耐震要素相互間に発
生する相対変位で作動するダンパーによって既設建屋へ
の地震入力を吸収させ、これにより地震に対する既設建
屋の振動応答量を低減させることができると共に、さら
にまた耐震要素によって既設建屋に加わる地震力を負担
させることができて、これらダンパーおよび耐震要素に
より既設建屋の震災被害を大幅に低減することができ
る。As described above, in the seismic retrofit structure for an existing building according to claim 1 of the present invention, a seismic element is added outside at least one end of both ends of the existing building in the girder direction. Since this seismic element is connected to the existing building via a damper, when an external force such as seismic force is applied, the existing building and the seismic element can be installed by a damper that operates by relative displacement between them. The seismic input to the building can be absorbed, which can reduce the amount of vibration response of the existing building to the earthquake, and can also bear the seismic force applied to the existing building by the seismic resistant element. The elements can significantly reduce the earthquake damage to the existing building.
【0029】そして、前記耐震要素およびダンパーを増
設する耐震補強工事期間中にあっても、これら耐震要素
等が既設建屋の外部に取り付けられることから住戸使用
を継続することができ、当該工事によって日常生活が阻
害されることはない。このように居住者の日常生活に支
障をきたさないようにして上記耐震要素等を増設できる
ことにより、耐震補強工事自体を効率よく施工すること
ができて工期を短縮化でき、震災被害の低減と短期工事
という両面で居住者にとって好ましい耐震補強構造を得
ることができる。Even during the seismic retrofitting work for adding the seismic resistant elements and dampers, the seismic resistant elements and the like are attached to the outside of the existing building, so that it is possible to continue using the dwelling unit. Life will not be hindered. In this way, by adding the above-mentioned seismic resistant elements so as not to hinder the daily life of residents, the seismic retrofitting work itself can be efficiently constructed, the construction period can be shortened, and the damage from the earthquake can be reduced. It is possible to obtain a seismic strengthening structure that is suitable for residents in terms of both short-term construction.
【0030】また、本発明の請求項2にあっては、耐震
要素を既設建屋の桁行方向両端部に増設した場合に、こ
れら両耐震要素間を補強ガーダーで連結するとともに、
この補強ガーダーをダンパーを介して既設建屋に接続す
るようにしたので、この補強ガーダーで両耐震要素を連
結して相互に拘束でき、既設建屋をさらに補強すること
ができるとともに、既設建屋への地震入力を補強ガーダ
ーとの間のこのダンパーでも吸収させて低減させること
ができ、効果的に既設建屋への地震入力を抑えて耐震補
強することができるという各種優れた効果を奏する。According to the second aspect of the present invention, when the seismic resistant elements are added to both ends of the existing building in the direction of the girders, both seismic resistant elements are connected by a reinforcing girder, and
Since this reinforcement girder is connected to the existing building via a damper, both seismic resistant elements can be connected to each other by this reinforcement girder to restrain each other, and the existing building can be further reinforced and an earthquake on the existing building The dampers between the reinforcing girder and the input can also be absorbed and reduced, and the seismic reinforcement to the existing building can be effectively suppressed by suppressing the seismic input to the existing building.
【図1】本発明にかかる既設建屋の耐震補強構造の一実
施形態を示す既設建屋を任意の階で切断した断面平面図
である。FIG. 1 is a cross-sectional plan view of an existing building showing an embodiment of an earthquake-proof reinforcement structure of the existing building, taken along an arbitrary floor.
【図2】本発明にかかる既設建屋の耐震補強構造の一実
施形態を示す既設建屋全体の正面図である。FIG. 2 is a front view of the entire existing building showing an embodiment of the seismic retrofit structure for the existing building according to the present invention.
【図3】従来の既設建屋の耐震補強方法を示す断面平面
図である。FIG. 3 is a cross-sectional plan view showing a conventional earthquake-proof reinforcement method for an existing building.
10 既設建屋 16 間仕切り壁 18 住戸 24 増設棟 26 ダンパー 28 補強ガーダー 30 ダンパー 10 Existing Building 16 Partition Wall 18 Dwelling Unit 24 Expansion Building 26 Damper 28 Reinforcement Girder 30 Damper
───────────────────────────────────────────────────── フロントページの続き (72)発明者 津田 和明 東京都清瀬市下清戸4丁目640番地 株式 会社大林組技術研究所内 (72)発明者 佐野 剛志 東京都清瀬市下清戸4丁目640番地 株式 会社大林組技術研究所内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kazuaki Tsuda 4-640 Shimo-Seido, Kiyose-shi, Tokyo Inside Obayashi Technical Research Institute, Inc. (72) Inventor Takeshi Sano 4-640 Shimo-Seido, Kiyose-shi, Tokyo Obayashi Engineering Co., Ltd. In the laboratory
Claims (2)
複数並設してこれら間仕切り壁間を室空間としたRC造
またはSRC造の既設建屋において、該既設建屋の桁行
方向両端部の少なくとも一端部外方に耐震要素を増設
し、該耐震要素をダンパーを介して既設建屋に接続した
ことを特徴とする既設建屋の耐震補強構造。1. An RC or SRC existing building in which a plurality of partition walls along the beam direction are arranged side by side in the girder direction and a space between these partition walls is a room space, and at least one end of both ends in the girder direction of the existing building. A seismic strengthening structure for an existing building, characterized in that a seismic resistant element is added to the outside and the seismic resistant element is connected to the existing building via a damper.
両端部に増設した場合に、これら両耐震要素間を補強ガ
ーダーで連結し、この補強ガーダーをダンパーを介して
既設建屋に接続することを特徴とする請求項1に記載の
既設建屋の耐震補強構造。2. When the seismic resistant element is added to both ends of the existing building in the girder direction, the seismic resistant elements are connected by a reinforcing girder, and the reinforcing girder is connected to the existing building via a damper. The seismic retrofit structure for an existing building according to claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12884096A JP3284882B2 (en) | 1996-05-23 | 1996-05-23 | Seismic reinforcement structure of existing building |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12884096A JP3284882B2 (en) | 1996-05-23 | 1996-05-23 | Seismic reinforcement structure of existing building |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09310509A true JPH09310509A (en) | 1997-12-02 |
JP3284882B2 JP3284882B2 (en) | 2002-05-20 |
Family
ID=14994697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12884096A Expired - Fee Related JP3284882B2 (en) | 1996-05-23 | 1996-05-23 | Seismic reinforcement structure of existing building |
Country Status (1)
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JP (1) | JP3284882B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006328797A (en) * | 2005-05-26 | 2006-12-07 | Shimizu Corp | Frame structure of plate shaped building |
JP2008208612A (en) * | 2007-02-26 | 2008-09-11 | Taisei Corp | External aseismatic reinforcing structure |
JP2008297801A (en) * | 2007-05-31 | 2008-12-11 | Nippon Steel Engineering Co Ltd | Building, addition structure thereof, and adding method |
JP2012140818A (en) * | 2011-01-05 | 2012-07-26 | Shimizu Corp | Earthquake strengthening structure for existing reinforced concrete apartment house |
-
1996
- 1996-05-23 JP JP12884096A patent/JP3284882B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006328797A (en) * | 2005-05-26 | 2006-12-07 | Shimizu Corp | Frame structure of plate shaped building |
JP2008208612A (en) * | 2007-02-26 | 2008-09-11 | Taisei Corp | External aseismatic reinforcing structure |
JP2008297801A (en) * | 2007-05-31 | 2008-12-11 | Nippon Steel Engineering Co Ltd | Building, addition structure thereof, and adding method |
JP2012140818A (en) * | 2011-01-05 | 2012-07-26 | Shimizu Corp | Earthquake strengthening structure for existing reinforced concrete apartment house |
Also Published As
Publication number | Publication date |
---|---|
JP3284882B2 (en) | 2002-05-20 |
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