JP3371815B2 - Seismic control reinforcement structure of existing building - Google Patents

Seismic control reinforcement structure of existing building

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Publication number
JP3371815B2
JP3371815B2 JP21761698A JP21761698A JP3371815B2 JP 3371815 B2 JP3371815 B2 JP 3371815B2 JP 21761698 A JP21761698 A JP 21761698A JP 21761698 A JP21761698 A JP 21761698A JP 3371815 B2 JP3371815 B2 JP 3371815B2
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JP
Japan
Prior art keywords
stud
existing
steel
frame
studs
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.)
Expired - Fee Related
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JP21761698A
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Japanese (ja)
Other versions
JP2000045538A (en
Inventor
勝康 佐々木
俊一 山田
光雄 坂本
一成 牧部
Original Assignee
鹿島建設株式会社
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Priority to JP21761698A priority Critical patent/JP3371815B2/en
Publication of JP2000045538A publication Critical patent/JP2000045538A/en
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Description

【発明の詳細な説明】Detailed Description of the Invention
【0001】[0001]
【発明の属する技術分野】本発明は、耐震性の低い既存
建築物に対して、制震装置を組み込んだ補強要素を増設
することにより、既存建築物を制震化する制震補強構造
に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic strengthening structure for damping an existing building by adding a reinforcing element incorporating a damping device to the existing building having low seismic resistance. Is.
【0002】[0002]
【従来の技術と発明が解決しようとする課題】従来、耐
震性の低い既存の鉄筋コンクリート建物を耐震補強する
場合、新たに壁あるいは鉄骨枠組みブレースを組み込ん
だ耐震要素を増設する方法が採用されていた。
2. Description of the Related Art Conventionally, in the case of retrofitting an existing reinforced concrete building having low seismic resistance, a method of newly installing seismic resistant elements incorporating walls or steel frame braces has been adopted. .
【0003】しかし、特に、建物内部で耐震補強しよう
とすると、必要な補強構面数を確保するために、廊下や
部屋への出入り口が確保できなくなり、結果として建物
の使用勝手を著しく低下させることが多いという問題が
あった。
[0003] However, especially when an attempt is made to perform seismic reinforcement inside a building, in order to secure the required number of reinforcing constructions, it is not possible to secure entrances to corridors or rooms, resulting in a marked decrease in the usability of the building. There was a problem that there were many.
【0004】本発明は、このような問題点を解消すべく
なされたもので、その目的は、既存建築物の柱・梁に囲
まれた開口部に制震要素を組み込んだ補強構面を出入り
口用等の開口を確保して増設することができると共に、
地震により建築物に入力されたエネルギーを制震要素で
吸収して数少ない補強要素の増設で既存の建築物の耐震
性を向上させることができ、さらに既存の梁に耐力上の
余裕が無くても補強構面を構築することができる既存建
築物の制震補強構造を提供することにある。
The present invention has been made to solve such a problem, and its purpose is to provide an entrance and exit to a reinforced structural surface in which a damping element is incorporated into an opening surrounded by columns and beams of an existing building. Along with being able to secure additional openings for use, etc.,
The energy input to the building due to the earthquake can be absorbed by the seismic control elements to increase the seismic resistance of the existing building by adding a few reinforcement elements, and even if the existing beam does not have a margin of strength. It is to provide a seismic control reinforcement structure for an existing building capable of constructing a reinforcement structure.
【0005】[0005]
【課題を解決するための手段】本発明の既存建築物の制
震補強構造は、既存建築物の柱と梁で囲まれた開口部の
内側に鋼製の門型フレームを固定し、この門型フレーム
内に鋼製の間柱を1つまたは複数設け、間柱の下端は床
スラブに後施工アンカーや樹脂接着剤等で固定し、この
間柱を上下に分離して上部間柱と下部間柱から構成する
と共に、この上部間柱と下部間柱の分断位置を下端に近
い位置とし、この上部間柱と下部間柱とを制震要素(弾
塑性ダンパー、オイルダンパー、粘性ダンパー,粘弾性
ダンパーなど)により連結して構成されていることを特
徴とする(請求項1:図1、図2参照)。間柱の上部
は、門型フレームの梁と一体的に形成し、あるいは門型
フレームの梁に溶接等で固定するなどして、門型フレー
ムと間柱を一体化する。また、間柱はその下端近くで分
断して制震要素を配置す
According to the seismic control reinforcement structure for an existing building of the present invention, a steel gate-shaped frame is fixed to the inside of an opening surrounded by columns and beams of the existing building. One or more steel studs are provided in the mold frame, and the lower end of the stud is fixed to the floor slab with post-installation anchors or resin adhesives, and this stud is separated into upper and lower studs and a lower stud.
In addition, the dividing position of this upper stud and lower stud should be close to the bottom.
The upper stud and the lower stud are connected to each other by a damping element (elasto-plastic damper, oil damper, viscous damper, viscoelastic damper, etc.). 1, see FIG. 2). The upper part of the stud is integrally formed with the beam of the portal frame, or is fixed to the beam of the portal frame by welding or the like to integrate the portal frame and the stud. Further, studs place the vibration control elements divided at its lower end near.
【0006】柱と梁に囲まれた開口部に、制震要素を組
み込んだ1つまたは複数の間柱が形成され、開口部の左
右両側や中央部に、廊下や部屋への出入り口等のための
開口が容易に確保される。地震により建築物自体が変形
すると、同時に制震要素も変形を受け、この制震要素は
変形により振動エネルギーを吸収して制震効果を発揮
し、補強構面の増設数が少なくても既存の建築物の耐震
性を向上させることができる。制震要素に発生する力
は、門型フレームを介して既存の梁に水平力として伝達
され、付加応力として生じる曲げモーメントおよび剪断
力は門型フレームで全てが負担され既存の梁には伝わら
ないため、既存の梁の耐力の余裕に関わらず補強構面を
構築できる。また、制震要素は下端に近い位置に設置す
ることによって間柱下端の曲げモーメントが小さくなる
ため、間柱を床スラブに固定するための後施工アンカー
や樹脂接着剤等の設計が可能となり、かつ制震要素を一
構面内に必要量確保することができる。
One or a plurality of studs incorporating a damping element is formed in an opening surrounded by columns and beams, and is provided on both left and right sides of the opening and in the center for entrances and exits to corridors and rooms. The opening is easily secured. When the building itself is deformed by an earthquake, the vibration control element is also deformed at the same time, and this vibration control element absorbs the vibration energy by the deformation and exerts the vibration control effect. The earthquake resistance of the building can be improved. The force generated in the damping element is transmitted as a horizontal force to the existing beam through the portal frame, and the bending moment and shearing force generated as additional stress are all carried by the portal frame and are not transmitted to the existing beam. Therefore, it is possible to construct a reinforced structural surface regardless of the bearing capacity of the existing beam. Also, by installing the damping element near the lower end, the bending moment at the lower end of the stud becomes smaller, which makes it possible to design post-installation anchors, resin adhesives, etc. for fixing the stud to the floor slab. It is possible to secure the required amount of seismic elements within one plane.
【0007】また、必要となる開口高さにより設置でき
る門型フレームの梁の剛性が制約され、間柱の変形が大
きくなり、制震要素の変形が相対的に小さくなって、エ
ネルギーを吸収する効果が低くなることが懸念される
が、既存の梁の耐力に余裕がある場合には、既存の梁と
門型フレームの梁の側面同士を接合金物を介して部分的
に接合する(請求項2:図4参照)。このように門型フ
レームの梁を接合金物で既存の梁に固定することで、門
型フレームの梁の変形を拘束し、間柱の変形を小さくし
て制震要素のエネルギーを吸収する効果を高めることが
可能となる。
Further, the required opening height restricts the rigidity of the beams of the gate-type frame that can be installed, the deformation of the studs becomes large, and the deformation of the damping element becomes relatively small, so that the energy is absorbed. However, if the existing beam has a sufficient proof strength, the side surfaces of the existing beam and the beam of the gate-shaped frame are partially joined to each other through the joining metal (claim 2 : See FIG. 4). In this way, by fixing the beam of the portal frame to the existing beam with the joint hardware, the deformation of the beam of the portal frame is restrained, the deformation of the stud is reduced, and the effect of absorbing the energy of the damping element is enhanced. It becomes possible.
【0008】[0008]
【発明の実施の形態】以下、本発明を図示する実施の形
態に基づいて説明する。図1は本発明の既存の鉄筋コン
クリート造の建物における制震補強構造の基本的な実施
形態を示したものである。図2はその制震補強構造の具
体的な実施形態の例を示したものである。図3は制震補
強構面の上端および下端の接合部の詳細を示したもので
ある。図4は制震補強構造の別の実施形態を示したもの
である。
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described based on illustrated embodiments. FIG. 1 shows a basic embodiment of a seismic control and reinforcement structure for an existing reinforced concrete building of the present invention. FIG. 2 shows an example of a specific embodiment of the seismic control reinforcement structure. Fig. 3 shows the details of the joints at the upper and lower ends of the seismic control reinforcement structure. FIG. 4 shows another embodiment of the seismic control reinforcement structure.
【0009】図1において、既存の鉄筋コンクリート造
の骨組みにおける柱1、1と梁2、3で囲まれた開口部
4の内側に鋼製の門型フレーム5を固定し、この門型フ
レーム5の内部に鋼製の間柱6を設けて開口部4内に出
入り口等のための開口4a、4b、4cを確保し、この
間柱6はその下部において上下に分断し、門型フレーム
5の梁5bと一体の上部間柱6−1と、下部の梁3およ
び床スラブ9に固定した下部間柱6−2とを弾塑性ダン
パー7で連結して地震エネルギーを吸収するようにして
いる。
In FIG. 1, a steel portal frame 5 is fixed inside an opening 4 surrounded by columns 1, 1 and beams 2, 3 in an existing reinforced concrete frame. A steel stud 6 is provided inside to secure openings 4a, 4b, and 4c for entrances and exits in the opening 4, and the stud 6 is divided into upper and lower parts at its lower part to form a beam 5b of the gate frame 5. The integrated upper stud 6-1 and the lower beam 3 and the lower stud 6-2 fixed to the floor slab 9 are connected by an elasto-plastic damper 7 to absorb seismic energy.
【0010】門型フレーム5は、H形鋼等の鉄骨材から
なる柱5aと梁5bから構成され、弾塑性ダンパー7に
より生じる付加応力に対して許容応力度設計がなされ
る。この門型フレーム5の柱5a、梁5bは、それぞれ
柱1の内側面、上部の梁2の下面に接着剤8やモルタル
等で固定される。また、柱5aの下端は、床スラブ9に
接着剤8やモルタル等と後施工アンカー10で固定され
る(図2参照)。
The gate-shaped frame 5 is composed of columns 5a and beams 5b made of steel frame material such as H-shaped steel, and is designed to have an allowable stress level against the additional stress generated by the elasto-plastic damper 7. The pillar 5a and the beam 5b of the gate-shaped frame 5 are fixed to the inner side surface of the pillar 1 and the lower surface of the upper beam 2, respectively, with an adhesive 8 or mortar. Further, the lower end of the pillar 5a is fixed to the floor slab 9 with an adhesive 8, mortar or the like and a post-installed anchor 10 (see FIG. 2).
【0011】このような門型フレーム5において、弾塑
性ダンパー7で発生する力は、接着部を介して水平力と
して上部の梁2に伝わるが、付加応力として生じる曲げ
モーメントおよび剪断力は門型フレーム5の鉄骨部材で
全てが負担され、上部の梁2には伝達しない。従って、
既存の梁2の曲げ耐力や剪断耐力に余裕がなかったとし
ても、補強せずに当該開口部4を補強構面として用いる
ことができる。なお、門型フレーム5として鉄骨の例を
示したが、これに限らず、その他の構造・形状を採用で
きることはいうまでもない。
In such a gate-shaped frame 5, the force generated by the elasto-plastic damper 7 is transmitted to the upper beam 2 as a horizontal force through the adhesive portion, but the bending moment and shearing force generated as additional stress are gate-shaped. The steel members of the frame 5 are all loaded and do not transmit to the upper beam 2. Therefore,
Even if the existing beam 2 has no margin in bending strength and shearing resistance, the opening 4 can be used as a reinforcing structural surface without reinforcement. Although the example of the steel frame is shown as the gate frame 5, it is needless to say that the structure is not limited to this and other structures and shapes can be adopted.
【0012】鋼製の間柱6は、例えば、図2に示すよう
に、所定幅の鋼板6aと、この鋼板6aを両端と中間で
補強する一体的な縦リブ6bと、鋼板6aの下部に位置
するT形鋼等からなる下部鉄骨6cなどから構成され、
後述する理由から、下部鉄骨6cを上部間柱6−1から
分離した下部間柱6−2としている。なお、間柱6は鋼
板、縦リブ、鉄骨材等からなる場合を示したが、これに
限定されることなく、その他の構造・形状を採用できる
ことはいうまでもない。
The steel stud 6 is, for example, as shown in FIG. 2, a steel plate 6a having a predetermined width, an integral vertical rib 6b for reinforcing the steel plate 6a at both ends and in the middle, and a lower portion of the steel plate 6a. It is composed of a lower steel frame 6c made of T-shaped steel, etc.
For the reason described below, the lower steel frame 6c is the lower stud 6-2 separated from the upper stud 6-1. Although the stud 6 is made of a steel plate, a vertical rib, a steel frame, or the like, it is needless to say that the stud 6 is not limited to this and other structures and shapes can be adopted.
【0013】上部間柱6−1は、門型フレーム5の梁5
bから一体的に垂設している。図2の図示例では、梁5
bの下面に突出板を一体的に形成しておき、この突出板
に中間板を継手板で接合することで、梁5bに固定され
た上部間柱6−1を構成している。なお、これに限ら
ず、門型フレーム5の梁5bの下面に上部間柱6−1の
上端を溶接等で接続するようにしてもよい(図1参
照)。
The upper studs 6-1 are the beams 5 of the portal frame 5.
It is hung integrally from b. In the illustrated example of FIG. 2, the beam 5
A projecting plate is integrally formed on the lower surface of b, and an intermediate plate is joined to the projecting plate with a joint plate to form an upper stud 6-1 fixed to the beam 5b. Note that the upper end of the upper stud 6-1 may be connected to the lower surface of the beam 5b of the portal frame 5 by welding or the like (see FIG. 1).
【0014】また、図2(a) では、門型フレーム5を左
右の逆L字型の鉄骨部材と梁中央の鉄骨部材を組み合わ
せて構成し、左右一対の上部間柱6−1を門型フレーム
5の中央に配設し、左右両側に出入り口等の開口4a、
4bを確保している。図2(b) では、門型フレーム5を
左右の逆L字型の鉄骨部材を組み合わせて構成し、この
門型フレーム5の左右両側に一対の上部間柱6−1を間
隔をおいて配設し、中央部に大きな開口4aを確保して
いる。
In FIG. 2 (a), the portal frame 5 is constructed by combining left and right inverted L-shaped steel members and a steel member at the center of the beam, and a pair of left and right upper studs 6-1 is provided in the portal frame. 5, which is arranged in the center of the opening 5 and has openings 4a such as entrances and exits on the left and right sides.
4b is secured. In FIG. 2 (b), the portal frame 5 is constructed by combining left and right inverted L-shaped steel members, and a pair of upper studs 6-1 are arranged on both the left and right sides of the portal frame 5 at intervals. However, a large opening 4a is secured in the central portion.
【0015】下部間柱6−2としての下部鉄骨6cは、
下部の梁3および床スラブ9に、接着剤8やモルタル等
と後施工アンカー10で固定する。ここで、一般に、後
施工アンカーは引張強度が低いため、床スラブへの下部
間柱の直接接合は、曲げモーメントに対する抵抗が弱
い。そのため、制震要素を組み込む位置、即ち間柱6の
分断位置を下端に近い位置とし、下部間柱6−2の床ス
ラブ9への接合部に作用する曲げモーメントを低減して
いる。
The lower steel frame 6c as the lower stud 6-2 is
The lower beam 3 and the floor slab 9 are fixed with an adhesive 8, mortar, etc. and a post-installed anchor 10. Here, since the post-installed anchor generally has low tensile strength, the direct connection of the lower stud to the floor slab has weak resistance to bending moment. Therefore, the position where the vibration control element is incorporated, that is, the dividing position of the stud 6 is set to a position close to the lower end, and the bending moment acting on the joint portion of the lower stud 6-2 to the floor slab 9 is reduced.
【0016】上部間柱6−1と下部間柱6−2との間に
は、適当な間隙が形成されるようにし、両者を制震要素
としての弾塑性ダンパー7で連結する。この弾塑性ダン
パー7は、例えば鋼板7aの中間部にハニカム形状の孔
7bを設けたものであり(図2参照)、上部間柱6−1
の鋼板6aおよび下部間柱6−2のウェブを鋼板7aで
挟み、ボルト11で締結する(図3(b) 参照) 。また、
この弾塑性ダンパー7は、図2の図示例では、左右一対
の上部間柱6−1のそれぞれの下部に2組、合計4組配
設している。なお、制震要素としては、これに限らず、
その他の弾塑性ダンパー、オイルダンパー、粘性ダンパ
ー、粘弾性ダンパー等を用いることができる。
An appropriate gap is formed between the upper stud 6-1 and the lower stud 6-2, and the two are connected by an elasto-plastic damper 7 as a vibration control element. This elasto-plastic damper 7 is, for example, a steel plate 7a provided with a honeycomb-shaped hole 7b in the middle portion (see FIG. 2), and the upper stud 6-1.
The steel plate 6a and the web of the lower stud 6-2 are sandwiched between the steel plates 7a and fastened with the bolts 11 (see FIG. 3 (b)). Also,
In the illustrated example of FIG. 2, two sets of the elasto-plastic dampers 7 are arranged in the lower part of each of the pair of left and right upper studs 6-1, and a total of four sets are arranged. The damping element is not limited to this,
Other elasto-plastic dampers, oil dampers, viscous dampers, viscoelastic dampers, etc. can be used.
【0017】本発明では、間柱の取付く既存の梁に耐力
上の余裕が無くても補強構面を構築できることを特徴と
しているが、必要となる開口高さにより設置できる門型
フレーム5の梁5bの剛性が制約され、間柱6−1の回
転による変形が大きくなり、制震要素7での変形が相対
的に小さくなって、エネルギーを吸収する効果が低くな
ることが懸念される。このような場合、既存の梁の耐力
に余裕がある場合には、図4に示すように、何箇所か既
存の梁2と門型フレーム5の梁5bの側面同士を接合金
物12で接合することにより、梁5bの曲げ変形によっ
て生じる引張り力に抵抗し、梁5bの回転変形を拘束す
る。そうすると、間柱6−1の制震要素位置での変形は
小さくなり、相対的に制震要素7での変形が大きくな
り、エネルギーを吸収する効果を高めることができる。
接続する箇所および数は限定されるものではなく、梁貫
通などの障害を避けた位置に設けることで、その効果を
発揮できる。
The present invention is characterized in that a reinforcing structure can be constructed even if there is no proof margin in the existing beam to which the studs are attached. However, the beam of the gate frame 5 that can be installed by the required opening height. There is a concern that the rigidity of 5b is restricted, the deformation of the studs 6-1 due to the rotation increases, the deformation of the damping element 7 becomes relatively small, and the effect of absorbing energy decreases. In such a case, if the existing beam has a sufficient proof stress, as shown in FIG. 4, the side surfaces of the existing beam 2 and the beam 5b of the gate-shaped frame 5 are joined to each other by the joining hardware 12 as shown in FIG. This resists the tensile force generated by the bending deformation of the beam 5b and restrains the rotational deformation of the beam 5b. Then, the deformation of the studs 6-1 at the damping element position becomes small, and the deformation of the damping element 7 becomes relatively large, so that the effect of absorbing energy can be enhanced.
The location and the number of connections are not limited, and the effect can be exhibited by providing the connection at a position where obstacles such as beam penetration are avoided.
【0018】図4に示す例では、板状の接合金物12の
上部を上部の梁2の両側面に添接し貫通ボルト13で固
定し、接合金物12の下部を門型フレーム5の梁5bの
両側面にボルト14で固定する。ここでは、H形鋼の梁
5bの両側面に補強リブ15および溝形鋼16を溶接で
取付け、この溝形鋼16に接合金物12の下部をボルト
14で固定している。
In the example shown in FIG. 4, the upper part of the plate-shaped joint metal 12 is attached to both side surfaces of the upper beam 2 and fixed by the through bolts 13, and the lower part of the joint metal 12 is connected to the beam 5b of the gate frame 5. Secure with bolts 14 on both sides. Here, the reinforcing ribs 15 and the grooved steel 16 are attached to both side surfaces of the H-shaped steel beam 5b by welding, and the lower portion of the metal joint 12 is fixed to the grooved steel 16 with bolts 14.
【0019】[0019]
【発明の効果】本発明の既存建築物の制震補強構造は、
既存建築物の柱と梁で囲まれた開口部の内側に鋼製の門
型フレームを固定し、この門型フレーム内に鋼製の間柱
を1つまたは複数設け、間柱の下端は後施工アンカーや
樹脂接着剤等で床スラブに固定し、この間柱を上下に分
離して上部間柱と下部間柱から構成すると共に、この上
部間柱と下部間柱の分断位置を下端に近い位置とし、こ
の上部間柱と下部間柱とを制震要素により連結するよう
にしたため、次のような効果を奏する。 (1) 柱と梁に囲まれた開口部に制震要素を組み込んだ複
数の間柱が形成され、開口部の左右両側や中央部に、廊
下や部屋への出入り口等のための開口が容易に確保され
るため、従来の建物の使用勝手の低下を解消することが
できる。 (2) 地震により建築物自体が変形すると、同時に制震要
素も変形を受け、この制震要素は変形により振動エネル
ギーを吸収して制震効果を発揮し、補強構面の増設数が
少なくても既存の建築物の耐震性を向上させることがで
きるため、建物の使用勝手が向上すると共に、比較的安
価な既存建築物の補強構造を得ることができる。 (3) 鋼製の門型フレームを設けることにより、制震要素
による付加応力を直接梁に水平力として伝達するので、
既存の梁の補強が不要となり、あるいは既存の梁に耐力
上の余裕が無くても補強構面を構築することができる。
また、制震要素は下端に近い位置に設置することによっ
て間柱下端の曲げモーメントが小さくなるため、間柱を
床スラブに固定するための後施工アンカーや樹脂接着剤
等の設計が可能となり、かつ制震要素を一構面内に必要
量確保することができる。 (4) 梁下のみで工事ができるので、梁貫通等との干渉が
なく施工性が高い。 (5) 既存の梁の耐力に余裕がある場合には、何箇所かで
既存の梁と門型フレームを接合することで、制震要素の
エネルギー吸収効果を高めることができる。
EFFECTS OF THE INVENTION The seismic damping structure for existing buildings of the present invention is
A steel portal frame is fixed inside the opening surrounded by columns and beams of an existing building, and one or more steel studs are provided in this portal frame. The lower end of the stud is a post-installation anchor. It is fixed to the floor slab with a resin adhesive or the like, and this stud is separated into upper and lower studs.
Set the dividing position between the lower stud and the lower stud to a position near the lower end, and
Since the upper stud and the lower stud are connected by the vibration control element, the following effects are achieved. (1) A plurality of studs incorporating seismic control elements are formed in the opening surrounded by columns and beams, and openings for corridors, entrances to rooms, etc. can be easily made on the left and right sides of the opening and in the center. Since this is ensured, it is possible to eliminate the decrease in the usability of conventional buildings. (2) When the building itself is deformed by an earthquake, the vibration control element is also deformed at the same time, and this vibration control element absorbs the vibration energy by the deformation and exerts the vibration control effect. Since the seismic resistance of the existing building can be improved, the usability of the building is improved and a relatively inexpensive reinforcing structure of the existing building can be obtained. (3) Since the gate-shaped frame made of steel is provided, the additional stress due to the damping element is directly transmitted to the beam as a horizontal force.
It is not necessary to reinforce the existing beam, or it is possible to construct a reinforced structural surface even if the existing beam has no proof capacity.
In addition, by installing the damping element near the bottom edge,
Since the bending moment at the bottom of the stud becomes smaller,
Post-installed anchors and resin adhesives for fixing to floor slabs
It is possible to design such as, and a damping element is required within one plane
The amount can be secured. (4) Since the work can be done only under the beam, there is no interference with the beam penetration and the workability is high. (5) If the existing beam has enough bearing capacity, it is possible to enhance the energy absorption effect of the seismic control element by connecting the existing beam and the gate frame at several points.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明の既存建築物の制震補強構造の基本的な
実施形態を示す正面図である。
FIG. 1 is a front view showing a basic embodiment of a vibration control reinforcement structure for an existing building of the present invention.
【図2】本発明の既存建築物の制震補強構造の具体的な
実施形態を示す正面図であり、(a) は左右両側に開口を
設けた場合、(b) は中央に開口を設けた例である。
FIG. 2 is a front view showing a concrete embodiment of a seismic control reinforcement structure for an existing building of the present invention, where (a) shows an opening provided on both left and right sides, and (b) shows an opening provided at the center. It is an example.
【図3】本発明の既存建築物の制震補強構造の梁への接
合部を示す断面図であり、(a)は上端の接合部、(b) は
下端の接合部を示す。
FIG. 3 is a cross-sectional view showing a joint portion of an existing building of the present invention to a beam of a vibration control reinforcement structure, where (a) shows a joint portion at an upper end and (b) shows a joint portion at a lower end.
【図4】本発明の既存建築物の制震補強構造の既存の梁
の耐力に余裕がある場合の実施形態であり、(a) は正面
図、(b) は(a) のb−b線断面図である。
FIG. 4 is an embodiment in the case where the existing beam of the seismic control reinforcement structure for an existing building of the present invention has a sufficient bearing capacity, (a) is a front view, and (b) is bb of (a). It is a line sectional view.
【符号の説明】[Explanation of symbols]
1……柱 2……上部の梁 3……下部の梁 4……開口部 4a…開口 4b…開口 4c…開口 5……門型フレーム 5a…柱 5b…梁 6……間柱 6−1…上部間柱 6−2…下部間柱 6a…鋼板 6b…縦リブ 6c…下部鉄骨 7……弾塑性ダンパー(制震要素) 7a…鋼板 7b…孔 8……接着剤 9……床スラブ 10……後施工アンカー 11……ボルト 12……接合金物 13……貫通ボルト 14……ボルト 15……補強リブ 16……溝形鋼 1 ... Pillar 2 ... Upper beam 3 ... Lower beam 4 ... Opening 4a ... opening 4b ... opening 4c ... opening 5: Gate frame 5a ... Pillar 5b ... beam 6 stud 6-1 ... Upper stud 6-2 ... Lower stud 6a ... Steel plate 6b ... Vertical rib 6c ... Lower steel frame 7 ... Elasto-plastic damper (vibration control element) 7a ... steel plate 7b ... hole 8 ... Adhesive 9 ... Floor slab 10 ... Post-installed anchor 11 ... Bolt 12 ... Joining hardware 13 ... Penetration bolt 14 ... Bolt 15 ... Reinforcing rib 16 ... Channel steel
───────────────────────────────────────────────────── フロントページの続き (72)発明者 牧部 一成 東京都港区元赤坂1丁目2番7号 鹿島 建設株式会社内 (56)参考文献 特開 平9−170353(JP,A) 特開 平2−144435(JP,A) 特開 昭54−52829(JP,A) 特開 平10−153012(JP,A) 特開 平9−317200(JP,A) 特開 平10−159352(JP,A) (58)調査した分野(Int.Cl.7,DB名) E04G 23/02 E04H 9/02 301 E04H 9/02 321 E04B 1/98 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Issei Makibe 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (56) Reference JP-A-9-170353 (JP, A) Kaihei 2-144435 (JP, A) JP 54-52829 (JP, A) JP 10-153012 (JP, A) JP 9-317200 (JP, A) JP 10-159352 ( (58) Fields surveyed (Int.Cl. 7 , DB name) E04G 23/02 E04H 9/02 301 E04H 9/02 321 E04B 1/98

Claims (2)

    (57)【特許請求の範囲】(57) [Claims]
  1. 【請求項1】 既存建築物の柱と梁で囲まれた開口部の
    内側に鋼製の門型フレームを固定し、この門型フレーム
    内に鋼製の間柱を1つまたは複数設け、間柱の下端は床
    スラブに固定し、この間柱を上下に分離して上部間柱と
    下部間柱から構成すると共に、この上部間柱と下部間柱
    の分断位置を下端に近い位置とし、この上部間柱と下部
    間柱とを制震要素により連結して構成されていることを
    特徴とする既存建築物の制震補強構造。
    1. A steel portal frame is fixed to the inside of an opening surrounded by columns and beams of an existing building, and one or a plurality of steel studs are provided in the portal frame. The lower end is fixed to the floor slab and this stud is separated into upper and lower studs.
    It consists of a lower stud, and the upper and lower studs.
    The dividing position of is set to a position near the lower end, and this upper stud and lower part
    A seismic control reinforcement structure for existing buildings, characterized by being connected to studs by seismic control elements.
  2. 【請求項2】 既存の梁と門型フレームの梁とを接合金
    物を介して部分的に接合して構成されていることを特徴
    とする請求項1に記載の既存建築物の制震補強構造。
    2. The seismic control reinforcement structure for an existing building according to claim 1, wherein the existing beam and the beam of the gate-shaped frame are partially joined via a joining metal object. .
JP21761698A 1998-07-31 1998-07-31 Seismic control reinforcement structure of existing building Expired - Fee Related JP3371815B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21761698A JP3371815B2 (en) 1998-07-31 1998-07-31 Seismic control reinforcement structure of existing building

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JP3371815B2 true JP3371815B2 (en) 2003-01-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104631647A (en) * 2015-01-19 2015-05-20 江苏沪宁钢机股份有限公司 High-rise damping device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5120592B2 (en) * 2006-10-13 2013-01-16 清水建設株式会社 Seismic wall structure
KR101705318B1 (en) * 2016-05-23 2017-02-09 주식회사 유니크내진시스템 Window and door open type vibration control system between columns for building

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104631647A (en) * 2015-01-19 2015-05-20 江苏沪宁钢机股份有限公司 High-rise damping device

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