JP2001227089A - Rc earthquake resistant stud - Google Patents

Rc earthquake resistant stud

Info

Publication number
JP2001227089A
JP2001227089A JP2000035144A JP2000035144A JP2001227089A JP 2001227089 A JP2001227089 A JP 2001227089A JP 2000035144 A JP2000035144 A JP 2000035144A JP 2000035144 A JP2000035144 A JP 2000035144A JP 2001227089 A JP2001227089 A JP 2001227089A
Authority
JP
Japan
Prior art keywords
column
earthquake
seismic
stud
damper
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
Application number
JP2000035144A
Other languages
Japanese (ja)
Other versions
JP3817402B2 (en
Inventor
Kuniyoshi Sugimoto
訓祥 杉本
Yasuhiko Masuda
安彦 増田
Hiroaki Edo
宏彰 江戸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Obayashi Corp
Original Assignee
Obayashi Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Obayashi Corp filed Critical Obayashi Corp
Priority to JP2000035144A priority Critical patent/JP3817402B2/en
Publication of JP2001227089A publication Critical patent/JP2001227089A/en
Application granted granted Critical
Publication of JP3817402B2 publication Critical patent/JP3817402B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Landscapes

  • Load-Bearing And Curtain Walls (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Vibration Dampers (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an RC earthquake resistant stud which improves the strength and rigidity of a column-beam skeleton, yields peecedently the column-beam skeleton in a large earthquake, absorbs the vibration energy of the earthquake and reduce the oscillation, facilitates the plan arrangement of an opening part and the arrangement plan of a vibration control structure, and easily achieves the reinforcement work integratedly with an existing building. SOLUTION: In the RC earthquake resistant stud 10 inserted and installed between upper and lower beams 4, 4 of the column-beam skeleton 6 with both ends integrated therewith, at least one end side is formed into a rigid stab-like beam joining portion 12 with the cross-sectional area increased compared with that of a center portion, and when a large interlayer displacement is generated between the upper and lower beams 4, 4 in a large earthquake, the stab-like beam joining portion 12 is integratedly displaced with the beam 4, a damper portion 14 shorter than the column 2 by the length of the stab-like beam joining portion 12 is larger in angle of displacement than the column 2 of the skeleton, the stress is concentrated at a root of the damper portion 14, the root yields precedently the column-beam skeleton 6, and then, reinforcements such as reinforcing bars 16 and steel tubes of the damper portion 14 elastically or plastically deformed, the vibration energy of the earthquake is absorbed to reduce the oscillation of the building.

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、鉄筋や鋼管で補強
されたRC造耐震間柱に係わり、特に大地震時には柱梁
架構に先行して降伏した後、地震の振動エネルギを鉄筋
や鋼管で吸収して揺れを減少させるようにしたRC造耐
震間柱に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an RC seismic stud reinforced with steel bars and steel pipes. In particular, after a large earthquake, it yields prior to the beam-column structure, and then absorbs the vibration energy of the earthquake with the steel bars and steel pipes. The present invention relates to an RC seismic stud that reduces shaking.

【0002】[0002]

【従来の技術】構造物の耐震性能を高める方法として、
柱梁架構の構面全体に耐震壁を設けて強度・剛性を
向上させる、 耐震デバイスを組み込むことにより地
震時の応答を制御する、 柱梁部材に鋼板や補強繊維
あるいは繊維補強シート等を巻き付けて柱梁部材自体の
靱性を向上させる、等の手法がある。
2. Description of the Related Art As a method of improving the seismic performance of a structure,
Improve strength and rigidity by installing earthquake-resistant walls on the entire beam-column structure, control earthquake response by incorporating seismic devices, and wrap column-beam members with steel plates, reinforcing fibers, or fiber-reinforced sheets There is a method of improving the toughness of the column and beam members themselves.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上記
の耐震壁を設ける場合では、構面全体を塞ぐ必要がある
ことから、構面内に開口を設けることができない。ま
た、壁部材に靱性を期待するには複数階におよぶ連層耐
震壁としなければならず、そうすると上下階の平面計画
に統一性を持たせる必要が生じてしまうなどして、平面
計画上の制約が厳しくなる。さらに、既存建造物の耐震
補強工事では、既存架構との一体性を持たせるために、
きわめて大掛かりな工事となってしまう。
However, in the case where the above-mentioned earthquake-resistant wall is provided, it is necessary to cover the entire surface of the structure, so that an opening cannot be provided in the surface of the structure. In addition, in order to expect toughness of the wall members, it is necessary to use multi-story multi-story earthquake-resistant walls, and if this is done, it is necessary to give uniformity to the floor plan of the upper and lower floors, etc. The restrictions become stricter. In addition, in the seismic retrofitting work of existing buildings, in order to have integrity with the existing frame,
It will be a very large-scale construction.

【0004】また、の耐震デバイスを組み込む場合で
は、デバイスとして粘弾性体からなるものや、鋼材によ
る摩擦ダンパーもしくは油圧ダンパーなどの機械的な機
構を用いたものになるが、機械的なダンパー機構はコス
トアップにつながることが多く、また、粘弾性体からな
るものはその素材によっては温度や速度などに対する依
存性が大きいため、四季を通じてその性能が十分に発揮
されるかどうか、不明確な部分が多い。
In the case of incorporating an anti-seismic device, a device made of a viscoelastic material or a device using a mechanical mechanism such as a friction damper or a hydraulic damper made of steel is used. In many cases, this will lead to an increase in cost.Because viscoelastic materials are highly dependent on temperature, speed, etc., depending on the material, it is unclear whether performance will be fully demonstrated throughout the four seasons. Many.

【0005】また、の鋼板若しくは補強繊維や繊維補
強シートを巻き付けて柱梁部材の靭性を高める場合で
は、柱梁架構の剛性の大幅な向上はあまり期待できず、
加えて既存建造物の耐震補強工事では、やはり大掛かり
な工事となってしまう。
[0005] Further, when the toughness of the beam-column member is increased by winding a steel plate or a reinforcing fiber or a fiber-reinforced sheet, a large improvement in the rigidity of the beam-column frame cannot be expected.
In addition, seismic retrofitting of existing buildings is also a large-scale project.

【0006】本発明は、上記課題を解決するためになさ
れたものであり、その目的は、柱梁架構の強度・剛性の
向上が図れるだけでなく、大地震時には当該柱梁架構に
先行して降伏し、爾後、地震の振動エネルギを鉄筋や鋼
管で吸収して揺れを減少させることができるとともに、
開口部の平面計画及び制振構造の配置計画が容易に行
え、しかも既存建造物に対しても一体性を持たせて容易
に耐震補強工事が行えるRC造耐震真柱を提供すること
にある。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is not only to improve the strength and rigidity of a column-beam frame, but also to precede the column-beam frame during a large earthquake. After surrendering, the vibration energy of the earthquake can be absorbed by steel bars and steel pipes to reduce the shaking,
It is an object of the present invention to provide an RC aseismic steel pillar that can easily perform a plan of an opening and a layout plan of a vibration damping structure, and can easily perform an aseismic retrofitting work with an existing building by being integrated.

【0007】[0007]

【課題を解決するための手段】以上の目的を達成するた
め、請求項1に記載の発明は、柱梁架構の上下の梁間に
両端が一体化されて挿入設置されるRC造耐震間柱にお
いて、該間柱は、少なくともその一端部側の梁接合部が
中央部分よりも平断面積を拡大されて剛強なスタブ状に
形成されていて、該中央部分が上下の梁の層間変位に伴
い柱梁架構よりも早期に降伏するダンパー部とされてい
ることを特徴とする。
Means for Solving the Problems In order to achieve the above object, an invention according to claim 1 is directed to an RC seismic stud that is inserted and installed between upper and lower beams of a beam-column frame. In the stud, at least a beam joint at one end side is formed in a rigid stub shape with a plane cross-sectional area larger than that of a center portion, and the center portion is formed in a column-beam frame with interlayer displacement of upper and lower beams. It is characterized by being a damper part which yields earlier than before.

【0008】当該請求項1に係る発明のRC造耐震間柱
によれば、少なくとも一端部側の梁接合部が平断面積の
大きい剛強なスタブ状に形成されて梁と一体化されるの
で、大地震時に上下の梁間に層間変位が生じると、スタ
ブ状の梁接合部は梁と一体となって変位する。このた
め、該スタブ状に形成された梁接合部の分だけ柱より短
柱化されているダンパ部の変位角は柱の変位角よりも大
きくなり、応力が該ダンパー部の付け根に集中し、当該
ダンパー部の付け根は柱梁架構に先行して降伏し、爾
後、このダンパー部の鉄筋や鋼管等の補強材が弾・塑性
変形して地震の振動エネルギを吸収し、建造物の揺れを
減少させる。
According to the RC reinforced concrete stud of the first aspect of the present invention, at least the beam joint at one end is formed into a rigid stub having a large flat cross section and integrated with the beam. When interlayer displacement occurs between the upper and lower beams during an earthquake, the stub-like beam joint is displaced integrally with the beams. For this reason, the displacement angle of the damper portion, which is shorter than the column by the beam connection portion formed in the stub shape, is larger than the displacement angle of the column, and the stress is concentrated on the base of the damper portion, The root of the damper part yields before the beam-column structure, and after that, reinforcing materials such as steel bars and steel pipes in this damper part elastically and plastically deform to absorb the vibration energy of the earthquake and reduce the shaking of the building. Let it.

【0009】ここで、請求項2に記載の発明のように、
前記スタブ状の梁接合部は上下両端に設ける構成とする
こともできる。
Here, as in the second aspect of the present invention,
The stub-like beam joint may be provided at both upper and lower ends.

【0010】また、前記RC造耐震間柱は、請求項3に
示すように鉄筋コンクリート製となし得るだけでなく、
請求項4に示すように、鉄筋コンクリート造の梁接合部
と鋼管コンクリート造のダンパー部とからなる構成とす
ることもできる。
[0010] Further, the RC reinforced concrete studs can be made of reinforced concrete,
According to a fourth aspect of the present invention, it is also possible to adopt a configuration comprising a reinforced concrete beam joint and a steel pipe concrete damper.

【0011】さらに、請求項5に示すように、前記RC
造耐震間柱はプレキャストコンクリート製となし、梁接
合部と梁とを両者を貫通するロッド材によりプレストレ
スによって圧着接合させて一体化する構成とすることも
できる。このようにプレキャスト製とすれば、既存の建
造物に対し、梁の所望の位置に該ロッドの挿通孔を尖設
するだけで当該RC造耐震間柱を容易に追設することが
でき、既存建造物の耐震補強工事を簡易に行い得る。
Further, as set forth in claim 5, the RC
The anti-seismic studs may be made of precast concrete, and the beam joint and the beam may be integrated by pressure bonding with a rod material penetrating both by prestress. With such a precast construction, the RC seismic stud can be easily added to an existing building simply by sharply inserting the rod insertion hole at a desired position of the beam. Seismic retrofitting work can be easily performed.

【0012】[0012]

【発明の実施の形態】以下に、本発明に係るRC造耐震
間柱の好適な実施形態について、添付図面を参照して詳
細に説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the RC seismic stud according to the present invention will be described below in detail with reference to the accompanying drawings.

【0013】図1は本発明のRC造耐震間柱の基本構成
となる第1実施例を概略的に示すものであり、(a)は
正断面図、(b)は側断面図である。同図に示すよう
に、本発明のRC造耐震間柱10は、柱と梁とからなる
柱梁架構の構面内で上下の梁4,4間に両端が一体化さ
れて挿入設置されるものであって、少なくともその一端
部側に中央部分よりも平断面積を大きくして剛強なスタ
ブ状に形成されたスタブ状梁接合部12と、このスタブ
状梁接合部12よりも平断面積が小さく形成されたダン
パー部14とを有する。
FIGS. 1A and 1B schematically show a first embodiment of a basic structure of an RC seismic stud according to the present invention, wherein FIG. 1A is a front sectional view and FIG. 1B is a side sectional view. As shown in the figure, the RC seismic stud 10 of the present invention is one in which both ends are integrated and inserted between the upper and lower beams 4, 4 in the plane of a beam-column frame composed of columns and beams. And a stub-like beam joint 12 formed at least at one end thereof to have a plane cross-sectional area larger than that of the central part and formed in a rigid stub shape, and a plane cross-sectional area larger than that of the stub-like beam joint 12. And a damper portion 14 formed small.

【0014】この第1実施例では、上記スタブ状梁接合
部12は図示するようにRC造耐震間柱10の上端部側
のみに形成され、ダンパー部14はスタブ状梁接合部1
2の下面から下方に延びて3分割形成されて並設されて
おり、その下端部は柱梁架構の下側の梁4に一体化され
て接合されている。ダンパー部14とスタブ状梁接合部
12、および架構の下側の梁4とにはダンパー部主筋1
6が貫通しており、これらは一体性を持つ。また、スタ
ブ状梁接合部12には上記ダンパー部主筋16に重ね継
ぎされるとともに上端部が上側の梁4内に貫通される壁
部縦筋18が設けられていて、当該スタブ状梁接合部1
2は上側の梁4と一体性を持たされている。
In the first embodiment, the stub-like beam joint 12 is formed only on the upper end side of the RC seismic stud 10 as shown, and the damper portion 14 is formed on the stub-like beam joint 1.
The lower part 2 is formed into three parts so as to extend downward from the lower surface and are arranged side by side, and the lower end is integrated with and joined to the lower beam 4 of the column-beam frame. The damper part main reinforcement 1 is provided between the damper part 14 and the stub-like beam joint part 12 and the lower beam 4 of the frame.
6 penetrate and they are integral. The stub-like beam joint 12 is provided with a wall vertical streak 18 which is overlapped with the damper part main reinforcement 16 and has an upper end penetrated into the upper beam 4. 1
Numeral 2 is integrated with upper beam 4.

【0015】ダンパー部14の平断面は矩形や円形に限
らず任意形状で良いが、図示例では矩形断面となってい
る。また、その分割本数も図示例の3本に限らず任意本
数で良く、もちろんスタブ状梁接合部12の平断面積よ
り小さければ、分割せずに1本としても良い。
The flat cross section of the damper portion 14 is not limited to a rectangle or a circle, but may be of any shape. Also, the number of divisions is not limited to three in the illustrated example, but may be an arbitrary number. Of course, if the number of divisions is smaller than the plane cross-sectional area of the stub-like beam joint portion 12, it may be one without division.

【0016】また、図示例ではスタブ状梁接合部12を
RC造耐震間柱10の上端部側のみに形成しているが下
端部側のみに形成する様にしても良く、さらには図2の
第2実施例に示すように上下の両端部双方に形成して、
架構の上下の梁4に一体化させて接合するようにしても
よい。
Further, in the illustrated example, the stub-like beam joint 12 is formed only on the upper end side of the RC seismic stud 10, but it may be formed only on the lower end side. Formed at both upper and lower ends as shown in the second embodiment,
You may make it integrate with the upper and lower beams 4 of a frame, and may join it.

【0017】この様に、剛強なスタブ状梁接合部12を
上下の両端部または上端部のみ、あるいは下端部のみに
持つRC造耐震間柱10では、図3に示すように、その
スタブ状梁接合部12が形成される分だけダンパー部1
4の長さが架構6の柱2よりも短くなって短柱化されて
いるから、大地震時に上下の梁4に大きな水平方向の相
対的な層間変位が生じると、スタブ状梁接合部12は梁
4と一体に変位し、よってダンパー部14の変位角は架
構6の柱2の変位角よりも大きくなる。このため、応力
はダンパー部14の付け根部分に集中し、当該部位は架
構6の柱2の変形が小さい段階で先行して降伏し、それ
以後においてダンパー部主筋16が弾・塑性変形して履
歴によるエネルギー吸収をするようになり、これにより
建造物の揺れが抑制されて減少する。また、基本的に耐
震間柱10であるので構面全体を塞ぐことがなく、開口
部を確保できて平面計画及び制振構造の配置計画が容易
に行える。
As described above, in the RC aseismic stud 10 having the rigid stub-like beam joint 12 only at the upper and lower ends, only at the upper end, or only at the lower end, as shown in FIG. The damper part 1 is formed as much as the part 12 is formed.
Since the length of the beam 4 is shorter than the column 2 of the frame 6 and is shortened, if a large horizontal relative interlayer displacement occurs in the upper and lower beams 4 during a large earthquake, the stub-like beam joint 12 is formed. Is displaced integrally with the beam 4, so that the displacement angle of the damper portion 14 is larger than the displacement angle of the column 2 of the frame 6. For this reason, the stress concentrates on the base portion of the damper portion 14, and the portion yields in advance at a stage where the deformation of the column 2 of the frame 6 is small, and after that, the main reinforcement 16 of the damper portion elastically and plastically deforms and the hysteresis occurs. Energy is absorbed by this, and the shaking of the building is suppressed and reduced. In addition, since the studs are basically the seismic studs 10, the entire structure is not closed, and the opening can be secured, so that the plan of the floor plan and the arrangement plan of the vibration damping structure can be easily performed.

【0018】ここで、ダンパー部14の内法高さ、その
断面形状、及びダンパー部主筋16の配筋量を適宜変更
することによって、当該ダンパー部14個々の剛性、強
度、エネルギー吸収性能を適宜に設定することができ、
加えてその本数も調整することでRC造耐震間柱10の
剛性、強度、エネルギー吸収性能はさらに広範に設定し
得る。
Here, the rigidity, strength, and energy absorption performance of each damper portion 14 are appropriately changed by appropriately changing the inner height of the damper portion 14, its cross-sectional shape, and the amount of reinforcement of the main reinforcement 16 of the damper portion. Can be set to
In addition, by adjusting the number thereof, the rigidity, strength, and energy absorption performance of the RC seismic stud 10 can be set more widely.

【0019】なお、施工にあたって、既存建造物に適用
する場合には、RC造耐震間柱10を設置しようとする
所望の位置に合わせて、上下の梁4にダンパー主筋16
若しくは壁部縦筋18の挿入孔を尖設して、これらの挿
入口に一方側を挿入し鉄筋類を配筋し、その周囲を型枠
で囲んでコンクリートをその型枠内部に注入充填するこ
とでおこなう。そして、上記挿入孔にはグラウト材を充
填して定着させる。
When the present invention is applied to an existing building, the damper main reinforcement 16 is attached to the upper and lower beams 4 in accordance with a desired position where the RC seismic stud 10 is to be installed.
Alternatively, the insertion holes of the wall vertical streaks 18 are sharply provided, one side is inserted into these insertion openings, reinforcing bars are arranged, and the periphery thereof is surrounded by a formwork, and concrete is injected and filled into the formwork. Do that. Then, a grout material is filled in the insertion hole and fixed.

【0020】図4は第3実施例を示す。この第3実施例
では、RC造耐震間柱10がプレキャスト製品となって
おり、スタブ状梁接合部12は上下の両端に形成されて
いて、壁部縦筋は設けられずにダンパー部主筋16によ
り当該スタブ状梁接合部12とダンパー部14とが一体
化されて予め工場で製造される。
FIG. 4 shows a third embodiment. In the third embodiment, the RC seismic stud 10 is a precast product, the stub-like beam joints 12 are formed at the upper and lower ends, and no vertical wall of the wall is provided, and the main reinforcement 16 of the damper is used. The stub-like beam joint portion 12 and the damper portion 14 are integrated and manufactured in advance at a factory.

【0021】このRC造耐震間柱10と架構6との取り
合いは、スタブ状梁接合部12にこれを縦に貫通させて
形成しておいたロッド材挿入孔(図示せず)と、架構6
の梁4にその内部の鉄筋(図示せず)を避けて形成した
梁側のロッド材挿入孔(図示せず)とにロッド材たるP
C鋼棒20を挿通させ、このPC鋼棒20の両端部をプ
レストレス導入による圧着工法で定着具22を介してそ
れぞれ梁4とスタブ状梁接合部12とに定着させて一体
化する。
The connection between the RC-made seismic stud 10 and the frame 6 is performed by inserting a rod material insertion hole (not shown) formed by vertically penetrating the stub-like beam joint 12 into the frame 6.
And a rod material insertion hole (not shown) on the beam side formed so as to avoid a reinforcing bar (not shown) in the inside of the beam 4.
The C steel rod 20 is inserted, and both ends of the PC steel rod 20 are fixed to the beam 4 and the stub-like beam joint 12 via the fixing tool 22 by a crimping method by introducing prestress, respectively, and integrated.

【0022】即ち、RC造耐震真柱10と架構6は別途
に施工していくことができ、架構6の施工が完了した
後、プレキャスト製品化したRC造耐震真柱10を搬入
して、架構6内に挿入して組み込み、PC鋼棒20によ
る圧着で施工するから、既存建物に組み込む場合でも、
梁4にPC鋼棒18等からなるロッド材挿入用の孔をあ
けるだけで容易に施工できる。
In other words, the RC aseismic pillar 10 and the frame 6 can be separately constructed. After the construction of the frame 6 is completed, the RC aseismic pillar 10 made into a precast product is carried in, and Since it is inserted into 6 and assembled, and crimped with PC steel rods 20, it is installed even in an existing building.
The drill 4 can be easily constructed simply by making a hole for inserting a rod material made of a PC steel bar 18 or the like in the beam 4.

【0023】また、この様にプレストレス力による圧着
工法で上下の梁4にスタブ状梁接合、部12を一体性を
持たせて接合するようにすると、前記第1実施例及び第
2実施例と同様の作用効果が得られるだけでなく、当該
スタブ状梁接合部12の強度・剛性の向上も図ることが
でき、中央のダンパー部14を降伏させていく際に、上
・下端部のスタブ状梁接合部12の損傷をより少なくな
るようにプレストレス力で調整できる。
Further, when the stub-like beam is joined to the upper and lower beams 4 and the portion 12 is joined with integrity by the crimping method using the prestress force as described above, the first and second embodiments are provided. In addition to obtaining the same operation and effect as described above, the strength and rigidity of the stub-like beam joint 12 can be improved, and when the center damper portion 14 is yielded, the stubs at the upper and lower ends are formed. The prestressing force can be adjusted so as to reduce damage to the beam-shaped joint 12.

【0024】なお、この発明で言うRC造とは鉄筋コン
クリートに限らず、鋼管充填コンクリートをも含むもの
であり、図5に示す第4実施例のようにダンパー部14
はその周囲を鋼管24で囲繞して形成する構成とし、ス
タブ状梁接合部12は上述の各実施例と同様に鉄筋コン
クリート造としても、あるいは鋼管充填コンクリート造
としても良い。もちろん、この場合にあってもRC造耐
震間柱10はプレキャスト製品となして、プレストレス
導入による圧着工法で梁4と一体性を持たせるようにし
ても良い。
Incidentally, the RC structure referred to in the present invention includes not only reinforced concrete but also concrete filled with steel pipes. As in the fourth embodiment shown in FIG.
Is formed so as to be surrounded by a steel pipe 24, and the stub-like beam joint 12 may be made of reinforced concrete or steel pipe-filled concrete as in the above-described embodiments. Of course, even in this case, the RC-made seismic studs 10 may be made into a precast product, and may be integrated with the beam 4 by a crimping method using prestress.

【0025】[0025]

【発明の効果】以上説明したように、本発明によれば、
柱梁架構の上下の梁間に両端が一体化されて挿入設置さ
れるRC造耐震間柱は、少なくともその一端部側の梁接
合部が中央部分よりも平断面積を拡大されて剛強なスタ
ブ状に形成されて梁と一体化されているので、大地震時
に上下の梁間に大きな層間変位が生じると、スタブ状の
梁接合部は梁と一体となって変位し、当該スタブ状梁接
合部の分だけ柱より短柱化されているダンパー部はその
変位角が架構の柱よりも大きくなって、応力が該ダンパ
ー部の付け根に集中するようになる。これ故、当該ダン
パー部の付け根は柱梁架構に先行して降伏し、爾後、こ
のダンパー部の鉄筋や鋼管等の補強材が弾・塑性変形し
て地震の振動エネルギを吸収するようになり、もって建
造物の揺れを減少させることができる。
As described above, according to the present invention,
The RC aseismic stud, which is inserted and installed at both ends between the upper and lower beams of the column-beam frame, is expanded at least at one end side of the beam joint to have a flat cross-sectional area larger than that of the central part, forming a rigid stub. Since it is formed and integrated with the beam, if a large interlayer displacement occurs between the upper and lower beams during a large earthquake, the stub-like beam joint is displaced integrally with the beam, and is divided by the stub-like beam joint. The displacement angle of the damper portion, which is shorter than the column, is larger than that of the column of the frame, and the stress is concentrated on the base of the damper portion. For this reason, the root of the damper part yields prior to the beam-column frame, and thereafter, reinforcing materials such as reinforcing steel and steel pipe of the damper part elastically and plastically deform and absorb the vibration energy of the earthquake, Thus, the shaking of the building can be reduced.

【0026】また、RC造耐震間柱をプレキャストコン
クリート製となし、梁接合部と梁とを両者を貫通するロ
ッド材によりプレストレスによって圧着接合させて一体
化する構成とすれば、既存の建造物に対し、梁の所望の
位置に該ロッドの挿通孔を尖設するだけで当該RC造耐
震間柱を容易に追設することができ、既存建造物の耐震
補強工事を簡易に行うことができる。
Further, if the RC-made seismic studs are made of precast concrete, and the beam joint and the beam are joined by pressure bonding by prestress using a rod material penetrating both, the existing structure can be integrated. On the other hand, the RC-made seismic studs can be easily added simply by providing the rod insertion holes at desired positions of the beam, and the seismic retrofitting work of the existing building can be easily performed.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明のRC造耐震間柱の基本構成となる第1
実施例を概略的に示すものであり、(a)は正断面図、
(b)は側断面図である。
FIG. 1 is a first diagram showing a basic configuration of an RC seismic stud of the present invention.
1 schematically shows an embodiment, in which (a) is a front sectional view,
(B) is a side sectional view.

【図2】本発明のRC造耐震間柱の第2実施例を概略的
に示すものであり、(a)は正断面図、(b)は側断面
図である。
FIG. 2 schematically shows a second embodiment of the RC seismic stud of the present invention, wherein (a) is a front sectional view and (b) is a side sectional view.

【図3】(a)は本発明のRC造耐震間柱が設けられた
柱梁架構の層間変位が生じていない状態を示す作用説明
図であり、(b)は層間変位が生じている状態の作用説
明図である。
3 (a) is an operation explanatory view showing a state in which interlayer displacement of a beam-column frame provided with RC seismic studs of the present invention has not occurred, and FIG. 3 (b) is a state in which interlayer displacement has occurred. It is an operation explanatory view.

【図4】本発明のRC造耐震間柱の第3実施例を概略的
に示すものであり、(a)は正断面図、(b)は同図
(a)中のIVb−IVb線部の矢視側断面図である。
4A and 4B schematically show a third embodiment of an RC seismic stud of the present invention, wherein FIG. 4A is a front sectional view, and FIG. 4B is a sectional view taken along line IVb-IVb in FIG. It is an arrow side sectional view.

【図5】本発明のRC造耐震間柱の第4実施例を概略的
に示すものであり、(a)は正断面図、(b)は同図
(a)中のIVb−IVb線部の矢視側断面図である。
5A and 5B schematically show a fourth embodiment of the RC seismic stud of the present invention, wherein FIG. 5A is a front sectional view, and FIG. 5B is a sectional view taken along line IVb-IVb in FIG. It is an arrow side sectional view.

【符号の説明】[Explanation of symbols]

2 柱 4 梁 6 架構 10 RC造耐震間柱 12 スタブ状梁接合部 14 ダンパー部 16 ダンパー部主筋 18 壁部縦筋 20 PC鋼棒(ロッド部材) 22 定着具 24 鋼管 2 Column 4 Beam 6 Frame 10 RC Seismic Stud 12 Stub-like Beam Joint 14 Damper 16 Damper Main Bar 18 Wall Vertical Bar 20 PC Steel Bar (Rod Member) 22 Fixing Tool 24 Steel Pipe

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) F16F 7/12 F16F 7/12 (72)発明者 江戸 宏彰 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 Fターム(参考) 2E002 FA02 FA04 FA06 LA00 LA01 LB03 LB13 LC00 LC07 MA09 MA11 MA12 3J066 AA26 BA04 BB01 BC01 BD07 BF12 BG01 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification FI FI Theme Court ゛ (Reference) F16F 7/12 F16F 7/12 (72) Inventor Hiroaki Edo 4-640 Shimoseito, Kiyose-shi, Tokyo Obayashi Corporation F term in the Technical Research Institute (reference) 2E002 FA02 FA04 FA06 LA00 LA01 LB03 LB13 LC00 LC07 MA09 MA11 MA12 3J066 AA26 BA04 BB01 BC01 BD07 BF12 BG01

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 柱梁架構の上下の梁間に両端が一体化さ
れて挿入設置されるRC造耐震間柱において、 該間柱は、少なくともその一端部側の梁接合部が中央部
分よりも平断面積を拡大されて剛強なスタブ状に形成さ
れていて、該中央部分が上下の梁の層間変位に伴い柱梁
架構よりも早期に降伏するダンパー部とされていること
を特徴とするRC造耐震間柱。
1. An RC aseismic stud having both ends integrated and inserted between upper and lower beams of a beam-to-column frame, wherein the stud has at least one beam joint at one end side in a plane sectional area larger than a central portion. Characterized in that it is formed in a rigid stub shape, and the central portion is a damper portion that yields earlier than the beam-column frame due to the interlayer displacement of the upper and lower beams, .
【請求項2】 前記スタブ状の梁接合部が上下両端に形
成されていることを特徴とする請求項1に記載のRC造
耐震間柱。
2. The RC seismic stud according to claim 1, wherein the stub-like beam joints are formed at both upper and lower ends.
【請求項3】 前記RC造耐震間柱が鉄筋コンクリート
製であることを特徴とする請求項1または2のいずれか
に記載のRC造耐震間柱。
3. An RC seismic stud according to claim 1, wherein the RC seismic stud is made of reinforced concrete.
【請求項4】 前記RC造耐震間柱が、鉄筋コンクリー
ト造の梁接合部と鋼管コンクリート造のダンパー部とか
らなることを特徴とする請求項1または2のいずれかに
記載のRC造耐震間柱。
4. The RC seismic stud according to claim 1, wherein the RC seismic stud comprises a reinforced concrete beam joint and a steel pipe concrete damper.
【請求項5】 前記RC造耐震間柱がプレキャストコン
クリート製であり、前記スタブ状の梁接合部と梁とを貫
通するロッド材によりプレストレスによって圧着接合さ
れることを特徴とする請求項1〜4のいずれかに記載の
RC造耐震間柱。
5. The RC seismic studs are made of precast concrete, and are pressure-bonded by prestress using a rod material penetrating the stub-like beam joint and the beam. An RC seismic stud according to any one of the above.
JP2000035144A 2000-02-14 2000-02-14 RC seismic studs Expired - Fee Related JP3817402B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000035144A JP3817402B2 (en) 2000-02-14 2000-02-14 RC seismic studs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000035144A JP3817402B2 (en) 2000-02-14 2000-02-14 RC seismic studs

Publications (2)

Publication Number Publication Date
JP2001227089A true JP2001227089A (en) 2001-08-24
JP3817402B2 JP3817402B2 (en) 2006-09-06

Family

ID=18559384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000035144A Expired - Fee Related JP3817402B2 (en) 2000-02-14 2000-02-14 RC seismic studs

Country Status (1)

Country Link
JP (1) JP3817402B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008240488A (en) * 2007-03-29 2008-10-09 Kajima Corp Concrete rod-shaped damper structure
CN103669896A (en) * 2013-10-23 2014-03-26 北京工业大学 Method for reinforcing structures through method of externally pasting reinforced concrete frame with ductility column energy dissipators
JP2015059297A (en) * 2013-09-17 2015-03-30 前田建設工業株式会社 Plate-like house
JP2015094076A (en) * 2013-11-08 2015-05-18 株式会社竹中工務店 Vibration control structure
CN106895228A (en) * 2015-12-21 2017-06-27 中国核动力研究设计院 A kind of apparatus support structure with bit shift compensation function

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008240488A (en) * 2007-03-29 2008-10-09 Kajima Corp Concrete rod-shaped damper structure
JP2015059297A (en) * 2013-09-17 2015-03-30 前田建設工業株式会社 Plate-like house
CN103669896A (en) * 2013-10-23 2014-03-26 北京工业大学 Method for reinforcing structures through method of externally pasting reinforced concrete frame with ductility column energy dissipators
CN103669896B (en) * 2013-10-23 2015-12-30 北京工业大学 The method of outer adhesive tape ductility pile damper reinforced concrete frame method ruggedized construction
JP2015094076A (en) * 2013-11-08 2015-05-18 株式会社竹中工務店 Vibration control structure
CN106895228A (en) * 2015-12-21 2017-06-27 中国核动力研究设计院 A kind of apparatus support structure with bit shift compensation function

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