JPH10110470A - Length adjustment type buckling constrained unbonded brace - Google Patents
Length adjustment type buckling constrained unbonded braceInfo
- Publication number
- JPH10110470A JPH10110470A JP28468596A JP28468596A JPH10110470A JP H10110470 A JPH10110470 A JP H10110470A JP 28468596 A JP28468596 A JP 28468596A JP 28468596 A JP28468596 A JP 28468596A JP H10110470 A JPH10110470 A JP H10110470A
- Authority
- JP
- Japan
- Prior art keywords
- section
- screw shaft
- joint
- buckling
- axis section
- 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.)
- Pending
Links
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】 本発明は住宅や低層等の各
種建築構造物において、地震力や風力等の水平力に抵抗
させる構造要素として使用される座屈拘束アンボンドブ
レースに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buckling-restrained unbonded brace used as a structural element for resisting horizontal forces such as seismic force and wind force in various building structures such as houses and low-rise buildings.
【０００２】[0002]
【従来の技術】 実開昭６３−１０１６０３号公報に開
示されたように、座屈拘束用鋼管コンクリート部材に鋼
製中心軸力部材が挿通され、該中心軸力部材の表面と該
鋼管コンクリート部材との間に付着防止用のアンボンド
材被膜が設けられた座屈拘束アンボンドブレースは、既
に知られている。2. Description of the Related Art As disclosed in Japanese Utility Model Laid-Open Publication No. 63-101603, a steel central axial force member is inserted into a buckling restraining steel tubular concrete member, and the surface of the central axial force member and the steel tubular concrete member are disposed. A buckling-restrained unbonded brace in which an unbonded material coating for preventing adhesion is provided between the two is already known.
【０００３】このように構成されたブレースでは、中心
軸力部材の座屈が鋼管コンクリート部材によって防止さ
れ、鋼管コンクリート部材への軸力の付加がアンボンド
材被膜によって防止されるため、引張加力と圧縮加力の
いずれにおいても信頼性の高い筋かい部材として機能す
るものである。In the brace constructed as described above, the buckling of the central axial force member is prevented by the steel tubular concrete member, and the application of the axial force to the steel tubular concrete member is prevented by the unbonded material coating. It functions as a highly reliable bracing member in any of the compressive forces.
【０００４】しかしながら、従来の座屈拘束アンボンド
ブレースでは、建築構造物への接合部は中心軸力部材の
両端部に連設されており、接合部相互間の距離は、対象
とする建築構造物の取付部間の寸法に対応するように設
計されている。そのため、特定の建築構造物のために製
作されたブレースを取付部間寸法の異なる他の建築構造
物に兼用することが不可能であり、標準化による座屈拘
束アンボンドブレースの製造コストの節減が行えなかっ
た。[0004] However, in the conventional buckling-restrained unbonded brace, the joint to the building structure is provided continuously at both ends of the central axial force member, and the distance between the joints is limited to the target building structure. It is designed to correspond to the dimension between the mounting parts. For this reason, it is impossible to use a brace manufactured for a specific building structure for another building structure with different dimensions between mounting parts, and it is possible to reduce the manufacturing cost of buckling-restrained unbonded braces by standardization. Did not.
【０００５】また、建築構造物では設計寸法と実際の建
上げ寸法との間に誤差が生じることは不可避であり、こ
の誤差が大きいときには、建築構造物側の接合金具のボ
ルト孔と、座屈拘束アンボンドブレースの接合部のボル
ト孔との位置合わせに難渋し、建築構造物への装着が不
可能となることがある。その場合には接合金具の交換や
ボルト孔の位置変更が要求されるため、ブレース装着工
程の作業能率が悪くなった。Further, it is inevitable that an error occurs between a design dimension and an actual building dimension in a building structure, and when this error is large, a bolt hole in a joint fitting on the building structure side and a buckling. It may be difficult to align the joint of the restrained unbonded brace with the bolt hole, and it may not be possible to mount it on a building structure. In such a case, it is necessary to replace the fittings and change the position of the bolt hole, so that the work efficiency of the brace mounting process is deteriorated.
【０００６】[0006]
【発明が解決しようとする課題】 したがって本発明の
目的は、中心軸力部材の全体長さを一定範囲内で増減調
整できるため汎用性があり、標準化によるブレースの製
造コストの節減が可能であり、また、建方精度の狂いを
吸収して建築構造物に的確に装着でき、かつ、建築物の
建方精度の調整を可能とする長さ調整型座屈アンボンド
ブレースを提供することである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to be able to reduce or increase the overall length of a central axial force member within a certain range, so that it has versatility and can reduce brace manufacturing cost by standardization. It is another object of the present invention to provide a length-adjustable buckling unbonded brace that can be attached to a building structure accurately by absorbing a deviation in the building accuracy and that can adjust the building accuracy of the building.
【０００７】[0007]
【課題を解決するための手段】 本発明の長さ調整型座
屈アンボンドブレースでは、座屈拘束用鋼管コンクリー
ト部材１にアンボンド材被膜３を施して中心軸力部材２
が挿通される。該中心軸力部材２は、建築構造物に接合
される第一接合部２ａと、第一接合部２ａに連設され、
鋼管コンクリート部材１に全長が包囲される主軸部２ｂ
と、主軸部２ｂに連設され、鋼管コンクリート部材１よ
り突出する第一ねじ軸部２ｃと、一方の端部から第一ね
じ軸部２ｃがねじ込まれるターンバックル部２ｄと、タ
ーンバックル部２ｄの他方の端部からねじ込まれる第二
ねじ軸部２ｅと、第二ねじ軸部２ｅに連設され、建築構
造物に接合される第二接合部２ｆとで構成される。この
第一ねじ軸部２ｃとターンバックル部２ｄと第２ねじ軸
部２ｅによって構成される長さ調整部の横断面積Ｓ2
は、主軸部２ｂの横断面積Ｓ1 よりも大きく設定され
る。Means for Solving the Problems In a length-adjustable buckling unbonded brace of the present invention, an unbonded material coating 3 is applied to a buckling-restraining steel tubular concrete member 1 to form a central axial force member 2.
Is inserted. The central axial force member 2 is connected to the first joint 2a joined to the building structure and the first joint 2a,
Main shaft part 2b whose entire length is surrounded by steel pipe concrete member 1
A first screw shaft portion 2c connected to the main shaft portion 2b and protruding from the steel pipe concrete member 1, a turnbuckle portion 2d into which the first screw shaft portion 2c is screwed from one end, and a turnbuckle portion 2d. It is composed of a second screw shaft portion 2e screwed from the other end and a second joint portion 2f connected to the second screw shaft portion 2e and joined to the building structure. The cross-sectional area S 2 of the length adjusting portion constituted by the first screw shaft portion 2c, the turnbuckle portion 2d, and the second screw shaft portion 2e.
Is set larger than the cross-sectional area S 1 of the main shaft portion 2b.
【０００８】使用に当たっては、中心軸力部材２の第一
接合部２ａは建築構造物８の上階梁９側の接合金具１０
にボルト１１によって接合され、第二接合部２ｆは下階
梁１２側の接合金具１３にボルト１４によって接合され
る。建方精度の狂いによって第二接合部２ｆのボルト孔
６と接合金具１３側のボルト孔の位置が合わないときに
は、ターンバックル部２ｄを回転操作して、ターンバッ
クル部２ｄに対する第一ねじ軸部２ｃと第二ねじ軸部２
ｅのねじ込み深さを増減させ、中心軸力部材２の全体長
さを伸縮調整する。In use, the first joint portion 2a of the central axial force member 2 is connected to the joint fitting 10 on the upper beam 9 side of the building structure 8.
And the second joint portion 2f is joined to the joint fitting 13 on the lower beam 12 side by the bolt 14. When the position of the bolt hole 6 of the second joint 2f and the position of the bolt hole on the joint fitting 13 do not match due to the deviation of the construction accuracy, the turnbuckle 2d is rotated to operate the first screw shaft with respect to the turnbuckle 2d. 2c and second screw shaft 2
The screwing depth of e is increased or decreased, and the entire length of the central axial force member 2 is adjusted to expand or contract.
【０００９】[0009]
【発明の実施の形態】 図示の実施例では、鋼管コンク
リート部材１は丸形鋼管１ａとこれに充填されたコンク
リート（セメントモルタル）１ｂとで構成されている。
中心軸力部材２の主軸部２ｂと第一ねじ軸部２ｃは丸鋼
材によって一体に形成され、鋼板よりなる第一接合部２
ａは主軸部２ｂに溶接によって連結されている。第一接
合部２ａの基端部分は鋼管コンクリート部材１の一方の
端部に入り込んでおり、先端部分にボルト孔４を設けて
ある。第一ねじ軸部２ｃの基端部分は鋼管コンクリート
部材１の他方の端部に入り込んでいる。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, a concrete steel pipe member 1 is composed of a round steel pipe 1a and concrete (cement mortar) 1b filled therein.
The main shaft portion 2b and the first screw shaft portion 2c of the central axial force member 2 are integrally formed of a round steel material, and the first joint portion 2 is made of a steel plate.
a is connected to the main shaft 2b by welding. The base end of the first joint 2a enters one end of the steel pipe concrete member 1, and a bolt hole 4 is provided at the end. The base end portion of the first screw shaft portion 2c enters the other end of the steel pipe concrete member 1.
【００１０】第一接合部７の該基端部分の横断面積Ｓ3
と第一ねじ軸部２ｃの基端部分の横断面積Ｓ4 は、該入
り込み端部における座屈防止のために、いずれも主軸部
２ｂの横断面積Ｓ1 より大きく設定されている（Ｓ4 ＝
Ｓs ）。第一接合部２ａと第一ねじ軸部２ｃの各入り込
み端面には、発泡スチロール等よりなる変形吸収用弾性
材５が接着剤等により固定されている。The cross-sectional area S 3 of the base portion of the first joint 7
And the cross-sectional area S 4 of the base end portion of the first screw shaft portion 2c is set to be larger than the cross-sectional area S 1 of the main shaft portion 2b in order to prevent buckling at the entry end portion (S 4 =
S s ). A deformation absorbing elastic material 5 made of styrene foam or the like is fixed to an entry end face of each of the first joining portion 2a and the first screw shaft portion 2c with an adhesive or the like.
【００１１】鋼管コンクリート部材１全体が中心軸力部
材２の長さ方向にずれようとする動きは、第一接合部２
ａと主軸部２ｂ間の段差面、及び第一ねじ軸部２ｃと主
軸部２ａ間の段差面によって阻止されている。コンクリ
ート成形の型枠剥離剤やオイルペイント、アスファルト
等からなるアンボンド材被膜３は、主軸部２ｂの表面だ
けでなく、第一接合部２ａと第一ねじ軸部２ｃの上記入
り込み部分の表面にも施されている。アンボンド材被膜
３は、中心軸力部材２と鋼管コンクリート部材１のコン
クリート部分１ｂとの付着を防止しており、鋼管コンク
リート部材１には中心軸力部材２からの軸力が付加され
ないようになっている。The movement of the entire steel pipe concrete member 1 to shift in the longitudinal direction of the central axial force member 2 is caused by the first joint 2
a and the main shaft 2b, and between the first screw shaft 2c and the main shaft 2a. The unbonded material coating 3 made of a mold release agent for concrete molding, oil paint, asphalt, etc. is applied not only to the surface of the main shaft portion 2b but also to the surface of the entry portion of the first joint portion 2a and the first screw shaft portion 2c. It has been subjected. The unbonded material coating 3 prevents the central axial force member 2 from adhering to the concrete portion 1b of the steel tubular concrete member 1, so that no axial force from the central axial force member 2 is applied to the steel tubular concrete member 1. ing.
【００１２】鋼板よりなる第二接合部２ｆは丸鋼材より
なる第二ねじ軸部２ｅの基端部分に溶接によって連結さ
れ、第二接合部２ｆの先端部分にはボルト孔６を設けて
ある。丸鋼管よりなるターンバックル部２ｄの各端部の
内周面には左右逆向きの雌ねじが切られており、ターン
バックル部２ｄの中間部には回転操作工具が嵌められる
六角形断面部７が設けられている。第一ねじ軸部２ｃと
第二ねじ軸部２ｅの外周面には、ターンバックル部２ｄ
の各雌ねじに対応して雄ねじが切られている。The second joint portion 2f made of a steel plate is connected to the base end portion of the second screw shaft portion 2e made of a round steel material by welding, and a bolt hole 6 is provided at the tip end portion of the second joint portion 2f. The inner peripheral surface of each end of the turnbuckle portion 2d made of a round steel pipe is provided with a female screw in a left-right opposite direction, and a hexagonal cross-sectional portion 7 into which a rotary operation tool is fitted is provided at an intermediate portion of the turnbuckle portion 2d. Is provided. A turnbuckle part 2d is provided on the outer peripheral surface of the first screw shaft part 2c and the second screw shaft part 2e.
Male threads are cut corresponding to each female thread.
【００１３】なお、鋼管１の断面形状は円形に限定され
ず、四角形などの他の断面形状とすることができる。ま
た、中心軸力部材２の構成材料は丸鋼材に限定されず、
鋼板などで構成することもできる。主軸部２ｂと第一ね
じ軸部２ｃは一体材料で構成することに限定されず、別
体に製作したものを連結して使用することもできる。第
一ねじ軸部２ｃと第二ねじ軸部２ｅの雌ねじ孔を設け、
ターンバックル２ｄの外周面に雄ねじを切ることもでき
る。The sectional shape of the steel pipe 1 is not limited to a circle, but may be another sectional shape such as a square. Further, the constituent material of the central axial force member 2 is not limited to a round steel material,
It can also be composed of a steel plate or the like. The main shaft portion 2b and the first screw shaft portion 2c are not limited to being formed of an integral material, but those manufactured separately can be used in combination. Female screw holes are provided for the first screw shaft portion 2c and the second screw shaft portion 2e,
A male screw can also be cut on the outer peripheral surface of the turnbuckle 2d.
【００１４】[0014]
【発明の効果】 以上のように本発明の座屈拘束アンボ
ンドブレースでは、中心軸力部材１のターンバックル部
２ｄを正方向または逆方向に回転操作することによっ
て、ターンバックル部２ｄに対する第一ねじ軸部２ｃと
第二ねじ軸部２ｅのねじ込み深さが増減されるため、中
心軸力部材２の全体の長さが伸縮調整される。そのた
め、建築構造物の建方精度に多少の誤差があっても、該
誤差を確実に吸収して建築構造物の所要部位間に作業性
良く装着することができる。As described above, in the buckling restrained unbonded brace of the present invention, the first screw with respect to the turnbuckle portion 2d is rotated by rotating the turnbuckle portion 2d of the central axial force member 1 in the forward or reverse direction. Since the screwing depth of the shaft portion 2c and the second screw shaft portion 2e is increased or decreased, the entire length of the central axial force member 2 is adjusted to expand and contract. Therefore, even if there is some error in the construction accuracy of the building structure, the error can be reliably absorbed and the work structure can be mounted between required parts of the building structure with good workability.
【００１５】また、このように長さ調整機能を有し、当
該調整範囲内において寸法の異なる各種架構に適用でき
る汎用性を備えているため、ブレースの標準化が可能で
あり、量産による製造コストの節減が可能である。In addition, since it has a length adjusting function and has versatility that can be applied to various frames having different dimensions within the adjustment range, standardization of braces is possible, and production costs due to mass production are reduced. Savings are possible.
【００１６】また、本発明の座屈拘束アンボンドブレー
スでは、第一ねじ軸部２ｃとターンバックル部２ｄと第
２ねじ軸部２ｅによって構成される長さ調整部が第二接
合部２ｆに隣接して配置されているためモーメントが小
さく、長さ調整部における座屈発生が防止される。ま
た、該長さ調整部の横断面積Ｓ2 が主軸部２ｂの横断面
積Ｓ1 よりも大きく設定されているため、中心軸力部材
２は主軸部２ｂのみで降伏することになり、長さ調整部
は降伏することなく温存される。Further, in the buckling-restrained unbonded brace of the present invention, the length adjusting portion formed by the first screw shaft portion 2c, the turnbuckle portion 2d, and the second screw shaft portion 2e is adjacent to the second joint portion 2f. The arrangement is such that the moment is small, and the occurrence of buckling in the length adjusting portion is prevented. Further, since the cross-sectional area S 2 of said length adjusting portion is set larger than the cross-sectional area S 1 of the main shaft portion 2b, the center axis force member 2 will be surrendered only the main shaft portion 2b, the length adjustment The part is preserved without surrender.
【００１７】さらに、上記のように構成された本発明の
座屈拘束アンボンドブレースは、座屈を起こさないため
に、従来はＸ状にクロスして２本使用していた箇所にお
いても１本使用するだけで十分であり、エネルギー吸収
能力も大きい。Furthermore, the buckling-restrained unbonded brace of the present invention having the above-described structure uses one piece even in a place where two pieces are conventionally used in an X shape in order to prevent buckling. Is sufficient, and the energy absorption capacity is large.
【図１】 本発明の一実施例に係る長さ調整型座屈拘束
アンボンドブレースを装着した建築構造物の概略的な正
面図である。FIG. 1 is a schematic front view of a building structure equipped with a length-adjustable buckling-restrained unbonded brace according to one embodiment of the present invention.
【図２】 該座屈拘束アンボンドブレースの要部拡大縦
断面図である。FIG. 2 is an enlarged longitudinal sectional view of a main part of the buckling restrained unbonded brace.
１ 座屈拘束用鋼管コンクリート部材 ２ 中心軸力部材 ２ａ 第一接合部 ２ｂ 主軸部 ２ｃ 第一ねじ軸部 ２ｄ ターンバックル部 ２ｅ 第二ねじ軸部 ２ｆ 第二接合部 ３ アンボンド材被膜 ４ ボルト孔 ５ 変形吸収用弾性材 ６ ボルト孔 ７ 六角形断面部 ８ 建築構造物 ９ 上階梁 １０ 接合金具 １１ 接合用ボルト １２ 下階梁 １３ 接合金具 １４ 接合用ボルト DESCRIPTION OF SYMBOLS 1 Buckling restraint steel pipe concrete member 2 Central axial force member 2a First joint 2b Main shaft 2c First screw shaft 2d Turnbuckle 2e Second screw shaft 2f Second joint 3 Unbonded material coating 4 Bolt hole 5 Elastic material for deformation absorption 6 Bolt hole 7 Hexagonal cross section 8 Building structure 9 Upper floor beam 10 Joint bracket 11 Joint bolt 12 Lower beam 13 Joint bracket 14 Joint bolt
Claims (1)
ンボンド材被膜３を施して中心軸力部材２が挿通され、
該中心軸力部材２が、建築構造物に接合される第一接合
部２ａと、第一接合部２ａに連設され、鋼管コンクリー
ト部材１に全長が包囲される主軸部２ｂと、主軸部２ｂ
に連設され、鋼管コンクリート部材１より突出する第一
ねじ軸部２ｃと、一方の端部から第一ねじ軸部２ｃがね
じ込まれるターンバックル部２ｄと、ターンバックル部
２ｄの他方の端部からねじ込まれる第二ねじ軸部２ｅ
と、第二ねじ軸部２ｅに連設され、建築構造物に接合さ
れる第二接合部２ｆとで構成され、第一ねじ軸部２ｃと
ターンバックル部２ｄと第２ねじ軸部２ｅによって構成
される長さ調整部の横断面積Ｓ2 を主軸部２ｂの横断面
積Ｓ1 よりも大きく設定した長さ調整型座屈拘束アンボ
ンドブレース。1. A buckling-restraining steel tubular concrete member 1 is coated with an unbonded material coating 3, and a central axial force member 2 is inserted therethrough.
A first joint portion 2a joined to the building structure, a main shaft portion 2b connected to the first joint portion 2a and surrounded by the steel pipe concrete member 1, and a main shaft portion 2b;
, A first screw shaft portion 2c protruding from the steel pipe concrete member 1, a turnbuckle portion 2d into which the first screw shaft portion 2c is screwed from one end, and a turnbuckle portion 2d from the other end. Second screw shaft 2e to be screwed
And a second joint 2f connected to the building structure and connected to the second screw shaft 2e, and configured by a first screw shaft 2c, a turnbuckle 2d, and a second screw shaft 2e. length adjusting unit cross-sectional area S 2 of the length adjustment type buckling restraint Unbonded brace set larger than the cross-sectional area S 1 of the main shaft portion 2b of being.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28468596A JPH10110470A (en) | 1996-10-07 | 1996-10-07 | Length adjustment type buckling constrained unbonded brace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28468596A JPH10110470A (en) | 1996-10-07 | 1996-10-07 | Length adjustment type buckling constrained unbonded brace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10110470A true JPH10110470A (en) | 1998-04-28 |
Family
ID=17681661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28468596A Pending JPH10110470A (en) | 1996-10-07 | 1996-10-07 | Length adjustment type buckling constrained unbonded brace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10110470A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7174680B2 (en) | 2002-05-29 | 2007-02-13 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7185462B1 (en) | 2003-07-25 | 2007-03-06 | Sme Steel Contractors, Inc. | Double core brace |
| US7305799B2 (en) | 2002-05-29 | 2007-12-11 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| JP2017089205A (en) * | 2015-11-09 | 2017-05-25 | 日之出水道機器株式会社 | Building member, building fitted with building member and building member fitting method |
-
1996
- 1996-10-07 JP JP28468596A patent/JPH10110470A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7174680B2 (en) | 2002-05-29 | 2007-02-13 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7284358B2 (en) | 2002-05-29 | 2007-10-23 | Sme Steel Contractors, Inc. | Methods of manufacturing bearing brace apparatus |
| US7305799B2 (en) | 2002-05-29 | 2007-12-11 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7716882B2 (en) | 2002-05-29 | 2010-05-18 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7762026B2 (en) | 2002-05-29 | 2010-07-27 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7185462B1 (en) | 2003-07-25 | 2007-03-06 | Sme Steel Contractors, Inc. | Double core brace |
| JP2017089205A (en) * | 2015-11-09 | 2017-05-25 | 日之出水道機器株式会社 | Building member, building fitted with building member and building member fitting method |
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| A02 | Decision of refusal |
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