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JP5276139B2 - Buckling restraint brace and building structure using the buckling restraint brace - Google Patents
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JP5276139B2 - Buckling restraint brace and building structure using the buckling restraint brace - Google Patents

Buckling restraint brace and building structure using the buckling restraint brace Download PDF

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JP5276139B2
JP5276139B2 JP2011108682A JP2011108682A JP5276139B2 JP 5276139 B2 JP5276139 B2 JP 5276139B2 JP 2011108682 A JP2011108682 A JP 2011108682A JP 2011108682 A JP2011108682 A JP 2011108682A JP 5276139 B2 JP5276139 B2 JP 5276139B2
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buckling
predetermined direction
pair
reinforcing
brace
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JP2012197660A (en
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コー チュアン ツァイ
アン チェ ウー
チー ユイ ウェイ
パオ チュン リン
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ツァイトアンファーレンクオチアシーイエンイエンチョウユアン
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E04H9/0237—Structural braces with damping devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C2003/026—Braces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/028—Earthquake withstanding shelters

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Vibration Dampers (AREA)
  • Clamps And Clips (AREA)

Abstract

A buckling restrained brace includes an axial member, a plurality of restraining members, and a plurality of securing units. The axial member includes a middle section extending in an axial direction, and a pair of coupling sections extending respectively from opposite ends of the middle section and that are adapted to be coupled fixedly to two connecting plates of a framework of a building, respectively. The restraining members extend in the axial direction, and are disposed around and contact the axial member. Each securing unit secures an adjacent pair of the restraining members together. Each restraining member cooperates with an adjacent one of the restraining members to define an opening therebetween through which a portion of the axial member is exposed for viewing.

Description

本発明は座屈拘束ブレース及び該座屈拘束ブレースを用いた建築構造物に関し、特に、該座屈拘束ブレースを解体せずにその芯材の状況を観察することができる座屈拘束ブレース及び該座屈拘束ブレースを用いた建築構造物に関する。     The present invention relates to a buckling-restrained brace and a building structure using the buckling-restraining brace, and in particular, a buckling-restraining brace capable of observing the state of the core material without disassembling the buckling-restraining brace and the The present invention relates to a building structure using a buckling restrained brace.

座屈拘束ブレースは、建築構造物の骨組に組込まれ、地震等によってその骨組に大きな変形が生じたときに生じるせん断応力などの振動エネルギを吸収するダンパである。     A buckling-restrained brace is a damper that is incorporated in a framework of a building structure and absorbs vibration energy such as shear stress generated when a large deformation occurs in the framework due to an earthquake or the like.

例えば図１に示されているように、座屈拘束ブレース９は、通常長手方向の圧縮荷重及び引張荷重を受けて伸縮するように塑性変形する鋼材から作成された芯材９３と、長手方向の圧縮荷重を受けた芯材９３が座屈するのを防止するべくブレース芯材を挟んで補強する座屈拘束用の補強材９２とを備えている。     For example, as shown in FIG. 1, the buckling-restraining brace 9 is composed of a core member 93 made of a steel material that is plastically deformed so as to expand and contract in response to a compressive load and a tensile load in the normal direction, and a longitudinal direction brace. A buckling-restraining reinforcing material 92 is provided that reinforces the bracing core material so as to prevent the core material 93 that has received a compressive load from buckling.

このように構成された座屈拘束ブレースは、振動エネルギを吸収すると共に破損する恐れがあるため、定期的に点検する必要がある。一方、座屈拘束ブレースは通常建築構造物の壁の内側に配置されている上、補強材９２を取り外さないと芯材９３の状態がわからない場合が多い。しかし、補強材９２はそもそも芯材９３を強く拘束するものであるため、補強材９２を取り外すことは困難であり、そのため、地震など芯材９３が破損する恐れがある事件が起こったら、座屈拘束ブレースの状態を点検せずに、直ちに新品に取り替えることも少なくない。     The buckling-restrained brace configured in this way needs to be regularly inspected because it absorbs vibration energy and may be damaged. On the other hand, the buckling restrained brace is usually disposed inside the wall of the building structure, and the state of the core member 93 is often not understood unless the reinforcing member 92 is removed. However, since the reinforcing material 92 strongly restrains the core material 93 in the first place, it is difficult to remove the reinforcing material 92. Therefore, if an event such as an earthquake that may damage the core material 93 occurs, buckling will occur. In many cases, the restraint brace is immediately replaced with a new one without checking the condition of the restraint brace.

このため、特許文献１では補強材９２を取り外すことがより簡単で、芯材９３の状態を判断してから座屈拘束ブレース全体を取り替えるかどうかを判断することにより、座屈拘束ブレースの使用寿命を延ばすことができる座屈拘束ブレースを提供している。     For this reason, in Patent Document 1, it is easier to remove the reinforcing material 92, and the service life of the buckling-restrained brace is determined by determining whether the entire buckling-restraining brace is replaced after determining the state of the core member 93. Provides buckling restrained braces that can be extended.

図２に示されているように、特許文献１は断面十字形の芯材９３を4つの補強材９２で挟む上、左右一つずつの挟持手段９７で補強材９２を挟持し、更に取り外し可能の固定ねじ９８で２つの挟持手段９７を固定する構成になっている。     As shown in FIG. 2, in Patent Document 1, a cross-shaped core member 93 is sandwiched between four reinforcing members 92, and the reinforcing member 92 is sandwiched between the left and right clamping means 97, and further removable. The two clamping means 97 are fixed by the fixing screw 98.

したがって、特許文献１が提供する座屈拘束ブレースは固定ねじ９８を取り外すことにより座屈拘束ブレースを解体して芯材９３の状態を点検して取り替える必要があるか否かを判断することができる。     Therefore, the buckling restraint brace provided by Patent Document 1 can determine whether it is necessary to disassemble the buckling restraint brace by removing the fixing screw 98, check the state of the core member 93, and replace it. .

台湾特許公告第５７００８３号明細書Taiwan Patent Notice 570083 Specification

上記座屈拘束ブレースは、固定ねじ９８を取り外す可能性と、十分な拘束力を提供して芯材９３の座屈変形を防ぐ機能を両立させようとするが、この２つの目標の中で１つしか達成できない恐れがある。すなわち、挟持手段９７の十分な拘束力を提供するが、固定ねじ９８の取り外し作業が困難且つ時間がかかる問題と、固定ねじ９８の取り外し作業が簡単であるものの、十分な拘束力を提供することができない重大な問題とのいずれかが発生しやすい。     The buckling-restraining brace tries to achieve both the possibility of removing the fixing screw 98 and the function of providing a sufficient restraining force to prevent the buckling deformation of the core member 93. There is a risk that only one can be achieved. That is, a sufficient restraining force of the clamping means 97 is provided, but a problem that it is difficult and time-consuming to remove the fixing screw 98, and a sufficient restraining force is provided although the removing operation of the fixing screw 98 is simple. One of the most serious problems that can't happen.

この問題点に鑑みて、本発明は座屈拘束ブレースを解体せずにその芯材の状況を観察することができる座屈拘束ブレースを提供することによって、芯材に十分な拘束力を提供すると共に、簡単で芯材の状態を判断してから座屈拘束ブレース全体を取り替えるかどうかを判断することができる座屈拘束ブレース及び該座屈拘束ブレースを用いた建築構造物の提供を目的とする。     In view of this problem, the present invention provides a sufficient restraining force to the core material by providing a buckling-restrained brace that can observe the state of the core material without disassembling the buckling-restrained brace. Another object of the present invention is to provide a buckling restraint brace that can easily judge whether or not the entire buckling restraint brace is replaced after judging the state of the core material, and a building structure using the buckling restraint brace. .

上記目的を達成すべく、本発明は、所定方向に沿って延伸してなる延伸部の両端に、接続用の接続部が形成され、且つ、全体が前記所定方向の圧縮荷重及び引張荷重を受けて伸縮するように塑性変形する鋼材から成っている芯材と前記芯材の前記圧縮荷重による座屈を防止するべく前記所定方向に沿って前記芯材の前記延伸部を両側から互いに接触しないように挟みながら前記延伸部の挟まれていない両側面が外から見えるように配置構成されている少なくとも１対の補強材と前記１対の補強材を固定する固定材とを備えており、また、前記固定材は、前記１対の補強材からそれぞれ前記側面が面している方向へ突出していると共に前記所定方向と平行するように延伸している２つ突出部と前記２つ突出部の間で該２つ突出部を連結すると共に前記延伸部の側面を間欠に遮蔽するように配置構成されている複数の連結部とを備えており、この構成により、前記延伸部の側面が外から見えるようになっていることを特徴とする座屈拘束ブレースを提供する。     In order to achieve the above object, the present invention provides a connecting portion for connection at both ends of an extending portion that extends along a predetermined direction, and the whole receives a compressive load and a tensile load in the predetermined direction. In order to prevent buckling due to the compressive load of the core material made of a steel material that is plastically deformed so as to expand and contract, the extending portions of the core material are not brought into contact with each other from both sides along the predetermined direction. And at least one pair of reinforcing members arranged so that both side surfaces of the extending portion that are not sandwiched are visible from the outside while being sandwiched between and a fixing member that fixes the pair of reinforcing members, The fixing member protrudes from the pair of reinforcing members in a direction in which the side faces each other and extends between the two protrusions and the two protrusions extending in parallel with the predetermined direction. When connecting the two protrusions with And a plurality of connecting portions arranged so as to intermittently shield the side surface of the extending portion. With this configuration, the side surface of the extending portion can be seen from the outside. Provide buckling restrained braces.

上記座屈拘束ブレースにおける前記連結部は、前記２つ突出部を挿通するように取り付けられている複数の固定ねじを備えているものが挙げられる。     The said connection part in the said buckling restraint brace has what is provided with the some fixing screw attached so that the said 2 protrusion part may be penetrated.

上記座屈拘束ブレースにおける前記補強材は、金属材料により前記所定方向に沿って延伸してなる管状体に形成されているものが挙げられる。     Examples of the reinforcing material in the buckling-restrained brace include those formed in a tubular body that is stretched along the predetermined direction with a metal material.

上記座屈拘束ブレースにおける前記補強材は、前記管状体の内側に更に前記所定方向と直交している少なくとも１つの支持柱を有しているものが挙げられる。     Examples of the reinforcing member in the buckling-restrained brace include those having at least one support column that is further orthogonal to the predetermined direction inside the tubular body.

上記座屈拘束ブレースにおける前記補強材は、前記管状体の内側の空間内にコンクリートが充填されているものも挙げられる。     Examples of the reinforcing material in the buckling restrained brace include those in which concrete is filled in a space inside the tubular body.

上記座屈拘束ブレースにおける前記延伸部は、垂直プレートと該垂直プレートの左右両面の前記所定方向に沿って延伸する中心線からそれぞれ突出するように形成されている左、右水平プレートを有し前記所定方向と直交する断面が十字形になるように形成されており、更に、２対の前記補強材を有しており、第１対の補強材は前記左水平プレートを挟み、第２対の補強材は前記右水平プレートを挟んでおり、更に前記第１、第２対の補強材は互いに対応して前記垂直プレートを挟むように構成されることができる。     The extending portion in the buckling restraint brace has a left and right horizontal plate formed so as to protrude from a vertical plate and a center line extending along the predetermined direction on both the left and right sides of the vertical plate, respectively. The cross section perpendicular to the predetermined direction is formed in a cross shape, and further includes two pairs of the reinforcing members. The first pair of reinforcing members sandwich the left horizontal plate, and the second pair of reinforcing members. The reinforcing material may sandwich the right horizontal plate, and the first and second pairs of reinforcing materials may be configured to sandwich the vertical plate corresponding to each other.

上記座屈拘束ブレースにおける前記連結部は、前記２つ突出部を連結するはんだを備えていることができる。     The connecting portion in the buckling restrained brace may include solder for connecting the two protruding portions.

更に、本発明は上記座屈拘束ブレースを有している建築構造物であって、該建築構造物に前記座屈拘束ブレースが建築構造物の外側から見られる観察孔が設けられていると共に前記座屈拘束ブレースは前記観察孔から前記延伸部の露出している側面の状態が検査可能になるように配置されていることを特徴とする建築構造物をも提供する。     Furthermore, the present invention is a building structure having the buckling restraint brace, wherein the building structure is provided with an observation hole through which the buckling restraint brace can be seen from the outside of the building structure. The buckling-restraining brace also provides a building structure that is arranged so that the state of the exposed side surface of the extending portion can be inspected from the observation hole.

上記構成により、本発明は芯材を外から見えるように補強材を配置構成するので、該座屈拘束ブレースを解体しなくてもその芯材の状況を観察することができる座屈拘束ブレース及び該座屈拘束ブレースを用いた建築構造物を提供することができる。     With the above configuration, since the present invention arranges and configures the reinforcing material so that the core material can be seen from the outside, the buckling-restrained brace capable of observing the condition of the core material without disassembling the buckling-restrained brace and A building structure using the buckling restrained brace can be provided.

従来例の座屈拘束ブレースの側面図である。It is a side view of the buckling restraint brace of a prior art example. 従来例の座屈拘束ブレースの断面図である。It is sectional drawing of the buckling restraint brace of a prior art example. 本発明の座屈拘束ブレースの使用状態例が示されている側面図である。It is a side view in which the example of the use condition of the buckling restraint brace of this invention is shown. 本発明の座屈拘束ブレースの第１の実施形態の構成が示されている説明図である。It is explanatory drawing in which the structure of 1st Embodiment of the buckling restraint brace of this invention is shown. 本発明の座屈拘束ブレース及び該座屈拘束ブレースが取り付けられている建築構造物の構成が示されている説明図である。It is explanatory drawing by which the structure of the buckling restraint brace of this invention and the building structure to which this buckling restraint brace is attached is shown. 本発明の座屈拘束ブレースの第２の実施形態の構成が示されている断面図である。It is sectional drawing by which the structure of 2nd Embodiment of the buckling restraint brace of this invention is shown. 本発明の座屈拘束ブレースの第３の実施形態の構成が示されている断面図である。It is sectional drawing by which the structure of 3rd Embodiment of the buckling restraint brace of this invention is shown. 本発明の座屈拘束ブレースの第４の実施形態の構成が示されている説明図である。It is explanatory drawing by which the structure of 4th Embodiment of the buckling restraint brace of this invention is shown. 本発明の座屈拘束ブレースの第５の実施形態の構成が示されている断面図である。It is sectional drawing by which the structure of 5th Embodiment of the buckling restraint brace of this invention is shown. 本発明の座屈拘束ブレースの第６の実施形態の構成が示されている断面図である。It is sectional drawing by which the structure of 6th Embodiment of the buckling restraint brace of this invention is shown. 本発明の座屈拘束ブレースの第７の実施形態の構成が示されている断面図である。It is sectional drawing by which the structure of 7th Embodiment of the buckling restraint brace of this invention is shown. 本発明の座屈拘束ブレースの第８の実施形態の構成が示されている断面図である。It is sectional drawing by which the structure of 8th Embodiment of the buckling restraint brace of this invention is shown.

以下は各図面に参照しながら本発明の各好ましい実施形態について詳しく説明する。     Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

図３、図４は本発明の座屈拘束ブレースの第１の実施形態であり、図３に示されているように、本発明の第１の実施形態は、所定方向７に沿って延伸してなる延伸部１１の両端に、接続用の接続部１２が形成され、且つ、全体が所定方向７の圧縮荷重及び引張荷重を受けて伸縮するように塑性変形する鋼材から成っている芯材１と、芯材１の前記圧縮荷重による座屈を防止するべく所定方向７に沿って芯材１の延伸部１１を両側から互いに接触しないように挟みながら延伸部１１の挟まれていない両側面が外から見えるように配置構成されている少なくとも１対の補強材２１とを備えているので、接続部１２で建築構造物の骨組５１と接続するように組込まれ、地震等によってその骨組５１に大きな変形が生じたときに振動エネルギを吸収することができる。     3 and 4 show a first embodiment of the buckling restrained brace of the present invention. As shown in FIG. 3, the first embodiment of the present invention extends along a predetermined direction 7. A connecting member 12 for connection is formed at both ends of the extending portion 11 and the core 1 is made of a steel material that is plastically deformed so as to expand and contract under the compressive load and tensile load in the predetermined direction 7 as a whole. In order to prevent buckling of the core material 1 due to the compressive load, both side surfaces of the core material 1 that are not sandwiched between the stretched portions 11 are sandwiched so as not to contact each other along the predetermined direction 7. Since it is provided with at least one pair of reinforcing members 21 arranged and configured to be visible from the outside, it is incorporated so as to be connected to the framework 51 of the building structure at the connection portion 12 and is greatly added to the framework 51 by an earthquake or the like. Absorbs vibration energy when deformation occurs It is possible.

また、図４に示されているように、本発明は金属材料により中空管状体に形成された１対の補強材２１を固定する固定材３を左右１組ずつ備えており、各組の固定材３は、それぞれ１対の補強材２１からそれぞれ前記側面が面している方向へ突出していると共に所定方向７と平行するように延伸している２つ突出部３１と、２つ突出部３１の間で該２つ突出部３１を連結すると共に延伸部１１の側面を間欠に遮蔽するように配置構成されている複数の連結部３２とを備えている。この実施形態において、各連結部３２は２つ突出部３１を連結するはんだである。     Further, as shown in FIG. 4, the present invention is provided with a pair of fixing members 3 for fixing a pair of reinforcing members 21 formed in a hollow tubular body by a metal material. Each of the members 3 protrudes from the pair of reinforcing members 21 in the direction in which the side surfaces face and extends in parallel with the predetermined direction 7, and the two protrusions 31. And a plurality of connecting portions 32 arranged and configured to intermittently shield the side surfaces of the extending portion 11 while connecting the two protruding portions 31 therebetween. In this embodiment, each connecting portion 32 is solder that connects the two protruding portions 31.

この構成により、延伸部１１の側面は固定材３により完全に遮蔽されず、外から見えるようになっている。図５では図３、図４に示されている座屈拘束ブレースが建築構造物に組み込まれる様子が示されており、図示されているように、該建築構造物５には観察孔５２が設けられており、該座屈拘束ブレースが建築構造物５の外側から観察孔５２を通して観察できるようになっていると共に、該座屈拘束ブレースは延伸部１１の露出している側面が観察孔５２に臨むように配置され、建築構造物５の外側から観察孔５２を通して延伸部１１の露出している側面の状態が検査可能になっている。     With this configuration, the side surface of the extending portion 11 is not completely shielded by the fixing material 3 and is visible from the outside. FIG. 5 shows a state in which the buckling restrained brace shown in FIGS. 3 and 4 is incorporated into a building structure. As shown in the drawing, the building structure 5 is provided with an observation hole 52. The buckling-restraining brace can be observed from the outside of the building structure 5 through the observation hole 52, and the side surface where the extending portion 11 is exposed is formed in the observation hole 52. It arrange | positions so that it may face, and the state of the side surface which the extending part 11 has exposed through the observation hole 52 from the outer side of the building structure 5 can be inspected.

図６では本発明の座屈拘束ブレースの第２の実施形態が示されており、図示されているように、この実施形態において１対の補強材２１は、それぞれ水平部２１１と垂直部２１２とを有していて中実でＴ字形断面を有するように形成されている。この構成により、補強材２１は第１の実施形態と異なる機械的強度を有することができる。     FIG. 6 shows a second embodiment of the buckling-restrained brace of the present invention. As shown in the figure, in this embodiment, the pair of reinforcing members 21 includes a horizontal portion 211 and a vertical portion 212, respectively. And has a solid T-shaped cross section. With this configuration, the reinforcing member 21 can have mechanical strength different from that of the first embodiment.

図７では本発明の座屈拘束ブレースの第３の実施形態が示されており、図示されているように、この実施形態において１対の補強材２１はそれぞれ水平部２１１と該水平部２１１の両周縁から凸出するように形成されている２つの垂直部２１２とを有していて中実でコ字形断面を有するように形成されている。この構成により、補強材２１は第１、第２の実施形態と異なる機械的強度を有することができる。     FIG. 7 shows a third embodiment of the buckling-restrained brace of the present invention. As shown in the figure, in this embodiment, the pair of reinforcing members 21 includes a horizontal portion 211 and a horizontal portion 211, respectively. It has two vertical portions 212 formed so as to protrude from both peripheral edges, and is formed so as to have a solid and U-shaped cross section. With this configuration, the reinforcing member 21 can have mechanical strength different from those of the first and second embodiments.

図８では本発明の座屈拘束ブレースの第４の実施形態が示されており、図示のように、この第４の実施形態は第１の実施形態と類似する構成を有しており、各連結部３２は２つ突出部３１を連結するはんだを有する上、２つ突出部３１を挿通するように取り付けられている複数の固定ねじ３２ａを備えている。この構成により、各連結部３２の連結強度を強化することができる。     FIG. 8 shows a fourth embodiment of the buckling restrained brace of the present invention. As shown in the figure, this fourth embodiment has a configuration similar to that of the first embodiment. The connecting portion 32 has solder for connecting the two projecting portions 31 and includes a plurality of fixing screws 32 a attached so as to be inserted through the two projecting portions 31. With this configuration, the connection strength of each connection portion 32 can be enhanced.

図９では本発明の座屈拘束ブレースの第５の実施形態が示されており、図示されているように、この実施形態において１対の補強材２１はそれぞれ中空の管状体に形成されている上、その中空部分にコンクリート２２が充填されている。この構成により、補強材２１は第１、第２、第３の実施形態と異なる機械的強度を有することができる。     FIG. 9 shows a fifth embodiment of the buckling restrained brace of the present invention. As shown in the figure, in this embodiment, the pair of reinforcing members 21 are each formed in a hollow tubular body. Above, the hollow portion is filled with concrete 22. With this configuration, the reinforcing member 21 can have mechanical strength different from that of the first, second, and third embodiments.

図１０では本発明の座屈拘束ブレースの第６の実施形態が示されており、図示されているように、この実施形態において１対の補強材２１はそれぞれ中空の管状体に形成されている上、その中空部分に複数の支持柱２３が形成されている。この構成により、補強材２１は第１〜第５実施形態と異なる機械的強度を有することができる。     FIG. 10 shows a sixth embodiment of the buckling restrained brace of the present invention. As shown in the figure, in this embodiment, the pair of reinforcing members 21 are each formed in a hollow tubular body. In addition, a plurality of support columns 23 are formed in the hollow portion. With this configuration, the reinforcing member 21 can have mechanical strength different from those of the first to fifth embodiments.

図１１では本発明の座屈拘束ブレースの第７の実施形態が示されており、図示されているように、この実施形態において芯材１の延伸部１１は、垂直プレート１１ａと該垂直プレート１１ａの左右両面の所定方向７に沿って延伸する中心線からそれぞれ突出するように形成されている左、右水平プレート１１ｂ、１１ｃを有し、所定方向７と直交する断面が十字形になるように形成されている。     FIG. 11 shows a seventh embodiment of the buckling restrained brace of the present invention. As shown in the drawing, in this embodiment, the extending portion 11 of the core material 1 includes a vertical plate 11a and the vertical plate 11a. The left and right horizontal plates 11b and 11c are formed so as to protrude from the center line extending along the predetermined direction 7 on both the left and right sides, so that the cross section perpendicular to the predetermined direction 7 has a cross shape. Is formed.

更に、この実施形態では２対の補強材２１を有しており、第１対の補強材２１ａ、２１ａは左水平プレート１１ｂを挟み、第２対の補強材２１ｂ、２１ｂは前記右水平プレート１１ｃを挟んでおり、更に、第１、第２対の補強材２１ａ、２１ｂは互いに上下対応して垂直プレート１１ａを挟んでいる。     Further, in this embodiment, there are two pairs of reinforcing members 21, the first pair of reinforcing members 21a and 21a sandwich the left horizontal plate 11b, and the second pair of reinforcing members 21b and 21b are the right horizontal plate 11c. Furthermore, the first and second pairs of reinforcing members 21a and 21b sandwich the vertical plate 11a so as to correspond to each other vertically.

第１対の補強材２１ａ、２１ａからそれぞれ左方へ突出すると共に所定方向７と平行するように延伸している２つ突出部３１が設けられており、２つ突出部３１の間で該２つ突出部３１を連結すると共に延伸部１１の側面を間欠に遮蔽するように配置構成されている複数の連結部としての固定ねじ３３が貫通するように設けられている。     Two protrusions 31 that protrude leftward from the first pair of reinforcing members 21a and 21a and extend parallel to the predetermined direction 7 are provided, and the two protrusions 31 are provided between the two protrusions 31. Fixing screws 33 as a plurality of connecting portions arranged so as to connect the one projecting portion 31 and intermittently shield the side surface of the extending portion 11 are provided so as to penetrate therethrough.

第２対の補強材２１ｂ、２１ｂからそれぞれ右方へ突出すると共に所定方向７と平行するように延伸している２つ突出部３１が設けられており、２つ突出部３１の間で該２つ突出部３１を連結すると共に延伸部１１の側面を間欠に遮蔽するように配置構成されている複数の連結部としての固定ねじ３３が貫通するように設けられている。     Two protrusions 31 that protrude rightward from the second pair of reinforcing members 21 b and 21 b and extend so as to be parallel to the predetermined direction 7 are provided. Fixing screws 33 as a plurality of connecting portions arranged so as to connect the one projecting portion 31 and intermittently shield the side surface of the extending portion 11 are provided so as to penetrate therethrough.

図１２では本発明の座屈拘束ブレースの第８の実施形態が示されており、図示されているように、この実施形態は第４の実施形態と類似している構成を有していると共に、芯材１の延伸部１１と１対の補強材２１の間に、それぞれ強化プレート２５が介在しており、強化プレート２５の延伸部１１および補強材２１と異なる機械的特性を利用して延伸部１１の座屈変形をより効率的に防ぐことができる。     FIG. 12 shows an eighth embodiment of the buckling restrained brace of the present invention, and as shown, this embodiment has a configuration similar to that of the fourth embodiment. The reinforcing plate 25 is interposed between the extending portion 11 of the core material 1 and the pair of reinforcing materials 21, respectively, and the drawing is performed using mechanical characteristics different from those of the extending portion 11 and the reinforcing material 21 of the reinforcing plate 25. The buckling deformation of the part 11 can be prevented more efficiently.

上記構成により、本発明は芯材を外から見えるように補強材を配置構成するので、該座屈拘束ブレースを解体しなくてもその芯材の状況を観察することができる座屈拘束ブレース及び該座屈拘束ブレースを用いた建築構造物を提供することができる。     With the above configuration, since the present invention arranges and configures the reinforcing material so that the core material can be seen from the outside, the buckling-restrained brace capable of observing the condition of the core material without disassembling the buckling-restrained brace and A building structure using the buckling restrained brace can be provided.

１ 芯材
１１ 延伸部
１１ａ 垂直プレート
１１ｂ 左水平プレート
１１ｃ 右水平プレート
１２ 接続部
２１ 補強材
２１１ 水平部
２１２ 垂直部
２１ａ 第１対の補強材
２１ｂ 第２対の補強材
２２ コンクリート
２３ 支持柱
２５ 強化プレート
３ 固定材
３１ 突出部
３２ 連結部
３２ａ 固定ねじ
３３ 固定ねじ
５ 建築構造物
５１ 骨組
５２ 観察孔
７ 所定方向
９ 座屈拘束ブレース
９２ 補強材
９３ 芯材
９７ 挟持手段
９８ 固定ねじ DESCRIPTION OF SYMBOLS 1 Core material 11 Extension part 11a Vertical plate 11b Left horizontal plate 11c Right horizontal plate 12 Connection part 21 Reinforcement material 211 Horizontal part 212 Vertical part 21a 1st pair reinforcement material 21b 2nd pair reinforcement material 22 Concrete 23 Support pillar 25 Strengthening Plate 3 Fixing material 31 Protruding portion 32 Connecting portion 32a Fixing screw 33 Fixing screw 5 Building structure 51 Frame 52 Observation hole 7 Predetermined direction 9 Buckling restraint brace 92 Reinforcement material 93 Core material 97 Holding means 98 Fixing screw

Claims (8)

所定方向に沿って延伸してなる延伸部の両端に、接続用の接続部が形成され、且つ、全体が前記所定方向の圧縮荷重及び引張荷重を受けて伸縮するように塑性変形する鋼材から成っている芯材と、
前記芯材の前記圧縮荷重による座屈を防止するべく前記所定方向に沿って前記芯材の前記延伸部を両側から互いに接触しないように挟みながら前記延伸部の挟まれていない両側面が外から見えるように配置構成されている少なくとも１対の補強材と、
前記１対の補強材を固定する固定材とを備えており、
また、前記固定材は、
前記１対の補強材からそれぞれ前記側面が面している方向へ突出していると共に前記所定方向と平行するように延伸している２つ突出部と、
前記２つ突出部の間で該２つ突出部を連結すると共に前記延伸部の側面を間欠に遮蔽するように配置構成されている複数の連結部とを備えており、
この構成より前記延伸部の側面が外から見えるようになっている、ことを特徴とする座屈拘束ブレース。 A connecting part for connection is formed at both ends of an extending part formed by extending along a predetermined direction, and the whole is made of a steel material that is plastically deformed so as to expand and contract under a compressive load and a tensile load in the predetermined direction. Core material,
In order to prevent buckling due to the compressive load of the core material, both the side surfaces of the core material that are not sandwiched from outside are sandwiched so that the core material does not come into contact with each other along the predetermined direction. At least one pair of reinforcements arranged to be visible;
A fixing member for fixing the pair of reinforcing members;
In addition, the fixing material is
Two protrusions that protrude from the pair of reinforcing materials in the direction in which the side faces face and extend so as to be parallel to the predetermined direction;
A plurality of connecting portions configured to connect the two protruding portions between the two protruding portions and to intermittently shield a side surface of the extending portion;
A buckling restrained brace characterized in that, from this configuration, the side surface of the extending portion is visible from the outside. 前記連結部は前記２つ突出部を挿通するように取り付けられている複数の固定ねじを備えている、ことを特徴とする請求項１に記載の座屈拘束ブレース。   The buckling-restraining brace according to claim 1, wherein the connecting portion includes a plurality of fixing screws attached so as to pass through the two protruding portions. 前記補強材は、金属材料により前記所定方向に沿って延伸してなる管状体に形成されている、ことを特徴とする請求項１または請求項２に記載の座屈拘束ブレース。   The buckling-restraining brace according to claim 1 or 2, wherein the reinforcing material is formed in a tubular body formed by extending along the predetermined direction with a metal material. 前記補強材は前記管状体の内側に前記所定方向と直交している少なくとも１つの支持柱を有している、ことを特徴とする請求項３に記載の座屈拘束ブレース。   The buckling-restraining brace according to claim 3, wherein the reinforcing member has at least one support column that is orthogonal to the predetermined direction inside the tubular body. 前記補強材は前記管状体の内側の空間内にコンクリートが充填されている、ことを特徴とする請求項３または請求項４に記載の座屈拘束ブレース。   The buckling-restraining brace according to claim 3 or 4, wherein the reinforcing material is filled with concrete in a space inside the tubular body. 前記延伸部は、垂直プレートと該垂直プレートの左右両面の前記所定方向に沿って延伸する中心線からそれぞれ突出するように形成されている左、右水平プレートを有し前記所定方向と直交する断面が十字形になるように形成されており、
更に、２対の前記補強材を有しており、第１対の補強材は前記左水平プレートを挟み、第２対の補強材は前記右水平プレートを挟んでおり、
更に前記第１、第２対の補強材は互いに対応して前記垂直プレートを挟んでいる、ことを特徴とする請求項１から請求項５のいずれか１つの請求項に記載の座屈拘束ブレース。 The extending portion includes a vertical plate and left and right horizontal plates formed so as to protrude from center lines extending along the predetermined direction on both the left and right sides of the vertical plate, and a cross section perpendicular to the predetermined direction. Is shaped like a cross,
Furthermore, it has two pairs of the reinforcing members, the first pair of reinforcing members sandwich the left horizontal plate, the second pair of reinforcing members sandwich the right horizontal plate,
The buckling-restraining brace according to any one of claims 1 to 5, wherein the first and second pairs of reinforcing members sandwich the vertical plate in correspondence with each other. . 前記連結部は前記２つ突出部を連結するはんだを備えている、ことを特徴とする請求項１から請求項６のいずれか１つの請求項に記載の座屈拘束ブレース。   The buckling restrained brace according to any one of claims 1 to 6, wherein the connecting portion includes solder for connecting the two projecting portions. 請求項１から請求項７のいずれか１つの請求項に記載の座屈拘束ブレースを有している建築構造物であって、
該建築構造物に前記座屈拘束ブレースが建築構造物の外側から見られる観察孔が設けられていると共に、
前記座屈拘束ブレースは前記観察孔から前記延伸部の露出している側面の状態が検査可能になるように配置されている、ことを特徴とする建築構造物。 A building structure having the buckling restrained brace according to any one of claims 1 to 7,
The building structure is provided with an observation hole where the buckling restrained brace is seen from the outside of the building structure,
The buckling restrained brace is arranged so that the state of the exposed side surface of the extending portion can be inspected from the observation hole.
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