CN104499596A - Truss-restrained type buckling-restrained brace - Google Patents

Truss-restrained type buckling-restrained brace Download PDF

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Publication number
CN104499596A
CN104499596A CN201410790802.7A CN201410790802A CN104499596A CN 104499596 A CN104499596 A CN 104499596A CN 201410790802 A CN201410790802 A CN 201410790802A CN 104499596 A CN104499596 A CN 104499596A
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China
Prior art keywords
steel pipe
restrained
square steel
steel
buckling support
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CN201410790802.7A
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Chinese (zh)
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CN104499596B (en
Inventor
郭彦林
童精中
姜子钦
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Tsinghua University
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Tsinghua University
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Publication of CN104499596B publication Critical patent/CN104499596B/en
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Abstract

The invention relates to a truss-restrained type buckling-restrained brace and belongs to the technical field of structural engineering. The buckling-restrained brace comprises a cross-shaped core steel member and a peripheral restrained member. The cross-shaped core steel member is formed by welding three flat steel plates, and hard rubber is adhered on the surface of the cross-shaped core steel member. The peripheral restrained member consists of a confined concrete-filled steel tube, two bent square steel tubes and connecting square steel tubes. Each bent square steel tube is formed by connecting two short straight square steel tubes with a long straight square steel tube, the two bent square steel tubes are placed at the symmetric positions on two sides of the confined concrete-filled steel tube and are equal in distance from the confined concrete-filled steel tube within a middle long area, and the positions, close to the ends of the peripheral restrained member, of the bent square steel tubes bend and are connected with the confined concrete-filled steel tubes by welding at the ends of the peripheral restrained member. The connecting square steel tubes are arranged obliquely in pairs in the length direction of the peripheral restrained member, and two ends of each connecting square steel tube are welded with the corresponding bent square steel tube and the confined concrete-filled steel tube respectively. The truss-restrained type buckling-restrained brace can be used as super-tonnage buckling-restrained braces crossing multiple storeys in a high-rise structure, and the members are more attractive in appearance.

Description

The anti-buckling support of a kind of truss restricted type
Technical field
The present invention relates to the anti-buckling support of a kind of truss restricted type, belong to technical field of structural engineering.
Background technology
Curvature-prevention support component, as a kind of new structure component, not only can be used as the lateral resistant member of building structure, and can show outstanding energy-dissipating and shock-absorbing performance under geological process.In recent years, anti-buckling support beginning is applied in the middle of some heavy construction structures of China gradually, especially in the area that seismic fortification intensity is higher, significantly can promote the functional performance of building structure under seismic loading.
Curvature-prevention support component is made up of peripheral constraint component and inner core component two parts usually.Peripheral constraint component generally can be divided into following three classes: steel concrete restraining tube cross section, concrete filled steel tube combination restraining tube cross section and all steel restraining tube cross section.Pressurized inner core component generally adopts the steel of low-yield, high ductility, and at inner core component surface mount vulcanie, to prevent the hard component damage contacting generation in curvature-prevention support component loading process between kernel with peripheral constraint component; And between peripheral constraint component and inner core component, leave certain gap, to prevent from being filled in during inner core component pressurized generation lateral expansion extremely.
Due to curvature-prevention support component surrendered by kernel after tension and compression repeatedly consume energy, in the anti-buckling support of concrete filled steel tube restraining tube usually adopted, for making peripheral constraint component, enough constraints are produced to kernel, generally restraining tube cross section is done very large, especially for large tonnage curvature-prevention support component.So produce following shortcoming: (1) about the excessive waste of material that causes in area of beam is serious; (2) in confining part, the concrete scale of construction causes greatly member integrated deadweight excessive, causes difficulty to the whole Transporting of curvature-prevention support component; (3) scantling is excessive may take too much architectural space, then may affect architectural effect when component exposes.
Summary of the invention
For solving the problem, the present invention proposes the anti-buckling support of a kind of Novel truss restricted type, be applicable to the anti-buckling support of super-tonnage of crossing over multiple floor in high-level structure, be connected with high-level structure floor plate at weak direction of principal axis, utilize the in-plane stiffness of high-level structure floor plate, be equivalent to provide multiple outer supports to anti-buckling support, reduce the calculated length of component, increase the integral, flexible Buckling Loads of component on weak direction of principal axis and about beam ratio; On strong direction of principal axis, by the setting of flexagon square steel pipe and connection side's steel pipe, restraining tube cross section is fully launched, increase the bending rigidity of about area of beam, the sectional dimension of confining part is significantly reduced, and the deadweight of member integrated declines, and then is convenient to transport; Component has external form more attractive in appearance, is conducive to architectural image.
The anti-buckling support of a kind of truss restricted type, containing cross kernel steel plate, constraint steel pipe, fill concrete, vulcanie, it is characterized in that, described anti-buckling support also comprises flexagon square steel pipe, connection side's steel pipe.
In above-mentioned anti-buckling support, described cross kernel steel plate length is greater than constraint steel pipe, by the plain plate of the plain plates of two pieces narrower and a piece wider by being welded to form; Vulcanie is pasted in the region surface of the restrained steel pipe of cross kernel steel plate and fill concrete parcel.
In above-mentioned anti-buckling support, described constraint steel pipe can adopt round steel pipe or square steel pipe, its inner fluid concrete.
In above-mentioned anti-buckling support, described flexagon square steel pipe totally two, is formed by connecting by two short Nogata steel pipes and a long Nogata steel-pipe welding; Two flexagon square steel pipes are placed on constraint steel pipe bilateral symmetry position, equidistant with constraint steel pipe in the longer region, middle part in, near component end warpage and termination with retrain steel-pipe welding and be connected.
In above-mentioned anti-buckling support, described connection side's steel pipe is oblique paired layout in component length direction, connection side's steel pipe two ends respectively with flexagon square steel pipe and retrain steel-pipe welding.
The anti-buckling support of this truss restricted type that the present invention proposes, the basis in conventional steel concrete restraining tube cross section adds the flexagon square steel pipe arranged in its bilateral symmetry, direct and the constraint steel-pipe welding at end flexagon steel pipe, be connected with constraint steel pipe by oblique connection side's steel pipe arranged in pairs in longer region, middle part, be applicable to the anti-buckling support of super-tonnage of crossing over multiple floor in high-level structure, be connected with high-level structure floor plate at weak direction of principal axis, have the following advantages: (1) is on weak direction of principal axis, utilize the in-plane stiffness of high-level structure floor plate, be equivalent to provide multiple outer supports to anti-buckling support, reduce the calculated length of component, increase the integral, flexible Buckling Loads of component on weak direction of principal axis and about beam ratio, (2) on strong direction of principal axis, by the setting of flexagon square steel pipe and connection side's steel pipe, restraining tube cross section is fully launched, increase the bending rigidity of about area of beam, the sectional dimension of confining part is significantly reduced, and the deadweight of member integrated declines, and then is convenient to transport, (3) component has external form more attractive in appearance, is conducive to architectural image.
Accompanying drawing explanation
Fig. 1 is the graphics of the anti-buckling support of truss restricted type;
Fig. 2 is the elevation of the anti-buckling support of truss restricted type;
Fig. 3-1 is the A-A sectional drawing of the anti-buckling support of truss restricted type: constraint steel pipe is round steel pipe;
Fig. 3-2 is the A-A sectional drawing of the anti-buckling support of truss restricted type: constraint steel pipe is square steel pipe;
Fig. 4 is truss restricted type anti-buckling support cross kernel steel plate composition diagram;
Fig. 5 is truss restricted type anti-buckling support flexagon square steel pipe composition diagram;
Fig. 6 is the anti-buckling layout schematic diagram be supported in high-level structure of truss restricted type.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 ~ 6, describe the embodiment of this patent in detail.
As shown in Fig. 1 ~ 5, a kind of truss restricted type curvature-prevention support component comprises with lower component:
1---cross kernel steel plate, comprising 1-1---narrow plain plate one; 1-2---narrow plain plate two; 1-3---wide plain plate;
2---fill concrete;
3---constraint steel pipe;
4---vulcanie;
5---flexagon square steel pipe, comprising 5-1---short Nogata steel pipe one; 5-2---short Nogata steel pipe two; 5-3---long Nogata steel pipe;
6---connection side's steel pipe.
As shown in Figure 4, described cross kernel steel plate 1 length be greater than constraint steel (3, by the plain plate 1-1 of two pieces narrower, 1-2 and a piece of wider plain plate 1-3 by being welded to form; As shown in Figure 3, the region surface of wrapping up at the restrained steel pipe 3 of cross kernel steel plate 1 and fill concrete 2 pastes vulcanie 4;
Described constraint steel pipe 3 can adopt round steel pipe or square steel pipe, its inner fluid concrete 2;
As shown in Figure 5, described flexagon square steel pipe 5 is made of welded connection by two short Nogata steel pipe 5-1, a 5-2 and long Nogata steel pipe 5-3;
As shown in Figure 1, 2, described flexagon square steel pipe 5 totally two, is placed on constraint steel pipe 3 bilateral symmetry position, equidistant with constraint steel pipe 3 in the longer region, middle part in, near component end warpage and termination with retrain steel pipe 3 and be welded to connect; Described connection side's steel pipe 6 is oblique paired layout in component length direction, and connection side's steel pipe 6 two ends are respectively with flexagon square steel pipe 5 with retrain steel pipe 3 and weld.
As shown in Figure 6, the anti-buckling support applications of truss restricted type is in high-level structure, and " people " font can be adopted to arrange, the multiple floor of member spans, weak direction of principal axis is connected with high-level structure floor plate, is equivalent to several equally spaced outer support.

Claims (5)

1. the anti-buckling support of truss restricted type, containing cross kernel steel plate, constraint steel pipe, fill concrete, vulcanie, it is characterized in that, described anti-buckling support also comprises flexagon square steel pipe, connection side's steel pipe.
2. anti-buckling support according to claim 1, is characterized in that, described cross kernel steel plate length is greater than constraint steel pipe, by the plain plate of the plain plates of two pieces narrower and a piece wider by being welded to form; Vulcanie is pasted in the region surface of the restrained steel pipe of cross kernel steel plate and fill concrete parcel.
3. anti-buckling support according to claim 1, is characterized in that, described constraint steel pipe can adopt round steel pipe or square steel pipe, its inner fluid concrete.
4. anti-buckling support according to claim 1, is characterized in that, described flexagon square steel pipe totally two, is formed by connecting by two short Nogata steel pipes and a long Nogata steel-pipe welding; Two flexagon square steel pipes are placed on constraint steel pipe bilateral symmetry position, equidistant with constraint steel pipe in the longer region, middle part in, near component end warpage and termination with retrain steel-pipe welding and be connected.
5. anti-buckling support according to claim 1, is characterized in that, described connection side's steel pipe is oblique paired layout in component length direction, connection side's steel pipe two ends respectively with flexagon square steel pipe and retrain steel-pipe welding.
CN201410790802.7A 2014-12-17 2014-12-17 Truss-restrained type buckling-restrained brace Expired - Fee Related CN104499596B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410790802.7A CN104499596B (en) 2014-12-17 2014-12-17 Truss-restrained type buckling-restrained brace

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Application Number Priority Date Filing Date Title
CN201410790802.7A CN104499596B (en) 2014-12-17 2014-12-17 Truss-restrained type buckling-restrained brace

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CN104499596B CN104499596B (en) 2017-02-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107060838A (en) * 2016-12-27 2017-08-18 河南理工大学 A kind of large span contains anti-buckling sub-truss support
TWI715223B (en) * 2019-09-28 2021-01-01 財團法人國家實驗研究院 Truss-confined buckling restrained brace

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010000840A1 (en) * 1999-06-30 2001-05-10 Toru Takeuchi Buckling restrained braces and damping steel structures
US20050166487A1 (en) * 2004-02-02 2005-08-04 Chong-Shien Tsai Shock-absorbing tie brace
CN102817422A (en) * 2012-08-31 2012-12-12 清华大学 Prestressed concrete constraining buckling-restrained brace
CN203238803U (en) * 2013-03-12 2013-10-16 同济大学 Novel mixed energy-dissipation shock-absorption support
CN103410241A (en) * 2013-03-29 2013-11-27 清华大学 Anti-buckling supporting member with lattice type three-circular-pipe cross section
CN203947610U (en) * 2014-04-02 2014-11-19 于航 Truss support between a kind of factory building columns with anti-buckling energy-consumption

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010000840A1 (en) * 1999-06-30 2001-05-10 Toru Takeuchi Buckling restrained braces and damping steel structures
US20050166487A1 (en) * 2004-02-02 2005-08-04 Chong-Shien Tsai Shock-absorbing tie brace
CN102817422A (en) * 2012-08-31 2012-12-12 清华大学 Prestressed concrete constraining buckling-restrained brace
CN203238803U (en) * 2013-03-12 2013-10-16 同济大学 Novel mixed energy-dissipation shock-absorption support
CN103410241A (en) * 2013-03-29 2013-11-27 清华大学 Anti-buckling supporting member with lattice type three-circular-pipe cross section
CN203947610U (en) * 2014-04-02 2014-11-19 于航 Truss support between a kind of factory building columns with anti-buckling energy-consumption

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107060838A (en) * 2016-12-27 2017-08-18 河南理工大学 A kind of large span contains anti-buckling sub-truss support
CN107060838B (en) * 2016-12-27 2019-10-01 河南理工大学 A kind of large span contains anti-buckling sub-truss bracket
TWI715223B (en) * 2019-09-28 2021-01-01 財團法人國家實驗研究院 Truss-confined buckling restrained brace
CN112575895A (en) * 2019-09-28 2021-03-30 蔡克铨 Truss enclosed-type buckling restrained brace

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