CN102587531B - Swinging buckling restrained brace and frame structure system and construction method thereof - Google Patents

Swinging buckling restrained brace and frame structure system and construction method thereof Download PDF

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Publication number
CN102587531B
CN102587531B CN201210052399.9A CN201210052399A CN102587531B CN 102587531 B CN102587531 B CN 102587531B CN 201210052399 A CN201210052399 A CN 201210052399A CN 102587531 B CN102587531 B CN 102587531B
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CN
China
Prior art keywords
frame
buckling
brace
wave
basis
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CN201210052399.9A
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Chinese (zh)
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CN102587531A (en
Inventor
张国伟
张艳霞
张扬
彭有开
徐斌
吴徽
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北京建筑大学
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Priority to CN201210052399.9A priority Critical patent/CN102587531B/en
Publication of CN102587531A publication Critical patent/CN102587531A/en
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Publication of CN102587531B publication Critical patent/CN102587531B/en

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Abstract

Disclosed are a swinging buckling restrained brace and frame structure system and a construction method thereof. The swinging buckling restrained brace and frame structure system comprises a buckling restrained brace, a frame, a foundation, fixing ends and embedded ends, the buckling restrained brace is mounted on the frame, and the frame is fixed onto the foundation by the aid of the fixing ends and the embedded ends. The swinging buckling restrained brace and frame structure system and the construction method are mainly characterized in that restraint on the fixing ends of columns of the frame with the brace and restraint on the foundation are released, and the embedded ends of an energy consuming element are vertically disposed. The system is high in structural rigidity, and seldom moves when in earthquake, energy consuming and damping effects are good, and the buckling restrained brace which is used as a replaceable energy dissipation unit can be conveniently replaced after earthquake.

Description

Wave anti-buckling brace-frame structure system and construction method thereof
Technical field
The present invention relates to civil engineering structure technical field, relate in particular to one and wave anti-buckling brace-frame structure system and its construction method.
Background technology
Traditional Seismic Design Method allows structure in the time of violent earthquake, to enter nonlinear state, rely on the dissipate energy of earthquake motion input of the elastic-plastic deformation of agent structure and member, realize the target of providing fortification against earthquakes of building structure " no damage in small earthquake, middle shake can be repaiied, no collapsing with strong earthquake ".But, in seismic process, structure and member are subject to the effect of complicated Cyclic Loading, make its accumulated damage degree be difficult to quantitative identification, cause the shake of most of damaged structure after repair difficult, have to remove and rebuild, cause fund and resource huge waste.Therefore, be necessary to design more effective, economic, practicable structural seismic system, make structure in the time meeting with fortification intensity or exceed the earthquake of fortification intensity, agent structure and main supporting member do not occur to destroy or major injury.As starting point, consider the wound repair cost of structure after earthquake, by taking to change dissipative cell, do not repair or locally recover very soon structure function after repairing the measures such as agent structure, become inevitable requirement and the development trend of new century seismic design of structures.
Buckling-resistant support structure is at present one of structural seismic new system most widely used, with the fastest developing speed.The basic thought of this type of structural system seismic design is: as the first line of defence of setting up defences, anti-buckling being supported on born most of floor shearing in earthquake, first enter yield situation, and concentrate most of earthquake energy that dissipates in this process, thereby alleviate damage and the destructiveness of agent structure.Under geological process, the stressed maximum feature of buckling-resistant support structure is: most of horizontal resist forces is provided by the framework that adds anti-buckling support, changes highly significant in the axle power that adds the frame column in anti-buckling support frame.Along with increasing of structure level number, under middle shake and large shake effect, anti-buckling support enters yield situation, axially the pulling force of accumulation is very large along pillar to add frame segment trestle in anti-buckling support frame, dead load is not enough to offset whole axial tensions, make will occur significant pulling force in frame column, be delivered in basis simultaneously.A little less than strong, the resistance to tension of anti-pressure ability on basis, safety is difficult to ensure card.Drawing significantly, curved, cut in composite force situation, basic engineering is difficulty very, this has just greatly limited anti-buckling being supported in highrise building and has applied, and becomes the anti-buckling bottleneck of engineering in applying that be supported on.
summary of the invention
the object of the invention is to solve the bottleneck and the technical barrier that in buckling-resistant support structure design, run at present, advance buckling-resistant support structure system to put into practice the application of engineering in China, propose one and wave anti-buckling brace-frame structure system.
For achieving the above object, the present invention is achieved through the following technical solutions: one is waved anti-buckling brace-frame structure system, and it comprises anti-buckling support, framework, basis, fixed end and position of fixity.Described anti-buckling support is installed on wherein said framework, and framework is fixed on basis by fixed end and position of fixity mode.Main feature is by carriage trestle and basic fixed end relaxed constraints, at the vertical position of fixity with dissipative cell that arranges.This system is mainly based on following consideration: 1. carriage trestle fixed end retrains to loosen significant axial tension in pillar is effectively discharged in basis, solve thus the design challenges existing in current basic engineering, make the use of anti-buckling support not be subject to the restriction of building height, produce qualitative leap; 2. in violent earthquake, suspension column can slightly lift, and forms the swinging structure system with damping effect, by the vertical dissipative cell of suspension column, and dissipative part seismic energy, thus alleviate the destructiveness to agent structure; 3. setting up on the one hand of suspension column dissipative cell can dissipative part seismic energy, and " waving scope " that in addition on the one hand can framing mask trestle, has reset function.
Preferably, described fixed end is to comprise frame column and basic combination, and described position of fixity is the combination that comprises frame column, damper and basis.
Preferably, the present invention is applicable to reinforced concrete structure.
Preferably, described framework is reinforced concrete frame.
Preferably, described reinforced concrete frame comprises frame column and the Vierendeel girder that anti-buckling support is installed and frame column and the Vierendeel girder that anti-buckling support is not installed.
Preferably, reinforced concrete frame wherein one across or several across frame column and Vierendeel girder between anti-buckling support is installed, between other frame column of just reinforced concrete framework and Vierendeel girder, anti-buckling support is not installed.By the special structure of anti-buckling support, avoid the problem of the reinforced concrete frame pressurized flexing at center, in the time of tension and pressurized, can surrender and flexing not, can better consume the seismic energy of input structure.
Preferably, the bottom of the frame column of the described reinforced concrete frame that anti-buckling support is not installed adopts fixed end with basic being connected.
Preferably, the bottom that the frame column of the reinforced concrete frame of anti-buckling support is installed adopts position of fixity with basic connection.
Preferably, on the bottom surface of the frame column of the described reinforced concrete frame that anti-buckling support has been installed, be provided with built-in fitting.
Preferably, on the bottom peripheric surface of the frame column of the described reinforced concrete frame that anti-buckling support has been installed, be provided with built-in fitting.
Preferably, on the basis contacting with the bottom surface of the frame column of the described reinforced concrete frame that anti-buckling support has been installed, be provided with built-in fitting.
Preferably, on the basis contacting with the bottom peripheric surface of the frame column of the described concrete frame that anti-buckling support has been installed, be provided with built-in fitting.
Preferably, the built-in fitting of having installed on the concrete frame trestle of anti-buckling support is connected with the built-in fitting on basis by damper, by damper, basis and the concrete frame trestle that anti-buckling support has been installed is linked together.Described damper is also vertical dissipative cell, and in the time that reinforced concrete frame column is subject to pulling force upwards or downward pressure, the vertical dissipative cell between reinforced concrete frame column and basis can be subject to very large power, and then makes damper produce distortion, power consumption.
Preferably, the present invention is applicable to steel work.
Preferably, described framework is steel frame.
Preferably, described wave anti-buckling brace-frame structure system, it is characterized in that: described steel frame comprises frame column, the Vierendeel girder that anti-buckling support is installed and frame column, the Vierendeel girder that anti-buckling support is not installed.
Preferably, steel frame wherein one across or several across frame column and Vierendeel girder between anti-buckling support is installed, between other frame column of steel frame and Vierendeel girder, anti-buckling support is not installed.
The bottom of preferably, the frame column of the steel frame of anti-buckling support not being installed adopts fixed end with basic connection.
Preferably, the bottom that the concrete frame trestle of anti-buckling support is installed adopts position of fixity with basic connection.
Preferably, on the basis contacting with the bottom surface of the described Steel Frame Column that anti-buckling support has been installed, be provided with built-in fitting.
Preferably, on the basis contacting with the bottom peripheric surface of the described Steel Frame Column that anti-buckling support has been installed, be provided with built-in fitting.
Preferably, the Steel Frame Column that anti-buckling support has been installed is connected with the built-in fitting on basis by damper, by damper, basis and the concrete frame trestle that anti-buckling support has been installed is linked together.
To wave anti-buckling brace-frame structure system be by carriage trestle and basic fixed end relaxed constraints according to of the present invention, at the vertical position of fixity with dissipative cell that arranges.In the time that structure is subject to the geological process of different stage, the position of fixity of the frame column bottom of framework can produce different displacements from basis.Under little shake effect, there is not relative displacement substantially with basis in frame column bottom, and seismic energy mainly dissipates by anti-buckling support; Under middle shake effect, in the scope of controlling in design with basic relative displacement bottom frame column, connect basis and start to bring into play power consumption effect with the damper of frame column bottom, simultaneously there is waving by a small margin in frame superstructure, anti-buckling support surrender in framework, dissipates most of seismic energy of inputting; Under large shake effect, frame column bottom position of fixity can be thrown off with basis, occurs to wave freely, and ordinary construction frame beam column produces plastic strain, and anti-buckling support simultaneously will be given full play to its power consumption effect.
Its rigidity of structure is large, and geological process bottom offset is little, and energy-dissipating and shock-absorbing is effective, and anti-buckling support, as replaceable dissipative cell, can be changed easily after shake.
Brief description of the drawings
Fig. 1 is anti-buckling brace-frame structure schematic diagram in prior art;
Fig. 2 is according to the structural representation of a preferred version that waves anti-buckling brace-frame structure system of the present invention;
Fig. 3 is according to the specific practice front view of the vertical dissipative cell (damper) of the preferred version that waves anti-buckling brace-frame structure system of the present invention shown in Fig. 2;
Fig. 4 is according to the specific practice top view of the vertical dissipative cell (damper) of the preferred version that waves anti-buckling brace-frame structure system of the present invention shown in Fig. 2;
Fig. 5 is according to the basic position of fixity way view of the preferred version that waves anti-buckling brace-frame structure system of the present invention shown in Fig. 2.
Reference numeral: framework 1, anti-buckling support 2, basis 3, frame column 4, damper 5, Vierendeel girder 6, basic arrangement of reinforcement 7, fixed end F, position of fixity M.
Detailed description of the invention
In order to understand better the present invention; below in conjunction with accompanying drawing to being described in detail according to the preferred embodiment that waves anti-buckling brace-frame structure system of the present invention; following description is only exemplary and indicative, should not have any restriction to protection scope of the present invention.
Fig. 2-5 show a preferred version that waves anti-buckling brace-frame structure system according to of the present invention, and it comprises anti-buckling support 2, framework 1, basis 3, fixed end F and position of fixity M.Wherein the bottom on basis 3 has basic arrangement of reinforcement 7.
Embodiment 1: the present invention is for reinforced concrete structure, framework 1 is reinforced concrete frame, the centre one of reinforced concrete frame across frame column 4 and Vierendeel girder 6 between anti-buckling support 2 has been installed, by the special structure of anti-buckling support 2, avoid the problem of the reinforced concrete frame pressurized flexing at center, in the time of tension and pressurized, can surrender and flexing not, can better consume the seismic energy of input structure.The bottom that the frame column 4 of the reinforced concrete frame of anti-buckling support 2 is not installed adopts fixed end F with being connected of basis 3, and the bottom that the frame column 4 of the reinforced concrete frame of anti-buckling support 2 has been installed adopts position of fixity M with being connected of basis 3.Be provided with built-in fitting having installed on the bottom surface of frame column 4 of reinforced concrete frame of anti-buckling support 2 and peripheric surface, on the basis contacting with the bottom of frame column of reinforced concrete frame that anti-buckling support has been installed, be provided with built-in fitting.The built-in fitting of having installed on the concrete frame trestle of anti-buckling support 2 is connected with the built-in fitting on basis 3 by damper 5, by damper 5 by basic 3 and concrete frame that anti-buckling support 2 has been installed link together.Damper 5 is also vertical dissipative cell, and in the time that the frame column 4 of reinforced concrete frame is subject to pulling force upwards or downward pressure, the damper 5 between frame column 4 and basis 3 can be subject to very large power, and then makes damper 5 produce distortion, power consumption.
Embodiment 2: the present invention is for steel work, framework 1 is steel frame, in the centre one of steel frame across anti-buckling support 2 is installed, by the special structure of anti-buckling support 2, avoid the problem of the steel frame pressurized flexing at center, in the time of tension and pressurized, can surrender and flexing not, can better consume the seismic energy of input structure.The bottom that the frame column 4 of the steel frame of anti-buckling support 2 is not installed adopts fixed end F with being connected of basis 3, and the bottom that the frame column 4 of the steel frame of anti-buckling support 4 has been installed adopts position of fixity M with being connected of basis 3.On the basis 3 contacting with the bottom of frame column 4 of steel frame that anti-buckling support 2 has been installed, be provided with built-in fitting.The steel frame that anti-buckling support 2 has been installed is connected with the built-in fitting on basis 3 by damper 5, by damper 5, basis 3 and the concrete frame that anti-buckling support has been installed is linked together.
The course of work: when geological process, along with the level of structure is waved, anti-buckling support (power consumption is supported) 2 produces and axially draws, compressive strain, in axial reciprocal deformation process, for structure provides horizontal resist forces, and dissipate the most of earthquake energy being input in structure.When anti-buckling support 2 deforms, the frame segment trestle 4 that the framework 1 of anti-buckling support 2 is installed can produce very large vertical tension.Under larger pulling force effect, can there is relative displacement with basis 3 in frame column 4.In being subjected to displacement, vertical dissipative cell damper 5 can produce vertical shear strain, dissipative part seismic energy, and provide restoring force for frame column 4.When frame column 4 produces relative displacement with basis 3, framework 1 waves, and waves framework 1 and produces larger distortion, thereby reduce the effect of earthquake to agent structure.In sum, under geological process, repeatedly the stretching and compress and vertical dissipative cell damper and the distortion of waving framework 1 dissipate most seismic energy of anti-buckling support 2, can in the time of earthquake, there is not larger damage in protection agent structure.。
Wave anti-buckling brace-frame structure system and comprise for the construction method of reinforced concrete structure the step that build on basis, frame column is built according to of the present invention, together with carrying out when build on basis, damper being cast in basis, together with carrying out when frame column is built, damper being cast in frame column.
It should be noted that; comprise any one and any combination thereof in above-described embodiment according to anti-buckling brace-frame structure system and the construction method thereof of waving of the present invention; but embodiment recited above is described the preferred embodiment of the present invention; not the scope of the invention is limited; design under spiritual prerequisite not departing from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.

Claims (22)

1. wave anti-buckling brace-frame structure system, it comprises anti-buckling support, framework, basis, fixed end and position of fixity, it is characterized in that: described fixed end is to comprise frame column and basic combination, described position of fixity is to comprise frame column, damper and basic combination, described anti-buckling support is installed on described framework, described framework is fixed on basis by fixed end and position of fixity mode, by carriage trestle and basic fixed end relaxed constraints, at the vertical position of fixity with dissipative cell that arranges, the axial tension of frame column is effectively discharged in basis.
2. according to claim 1ly wave anti-buckling brace-frame structure system, it is characterized in that: for concrete structure.
3. according to claim 2ly wave anti-buckling brace-frame structure system, it is characterized in that: described framework is reinforced concrete frame.
4. according to claim 3ly wave anti-buckling brace-frame structure system, it is characterized in that: described reinforced concrete frame comprises frame column and the Vierendeel girder that anti-buckling support is installed and frame column and the Vierendeel girder that anti-buckling support is not installed.
5. according to claim 4ly wave anti-buckling brace-frame structure system, it is characterized in that: reinforced concrete frame wherein one across or several across frame column and Vierendeel girder between anti-buckling support is installed, between other frame column of reinforced concrete frame and Vierendeel girder, anti-buckling support is not installed.
6. according to the anti-buckling brace-frame structure system of waving described in claim 4 or 5, it is characterized in that: the bottom that the frame column of the reinforced concrete frame of anti-buckling support is not installed adopts fixed end with basic being connected.
7. according to claim 6ly wave anti-buckling brace-frame structure system, it is characterized in that: the bottom that the frame column of the reinforced concrete frame of anti-buckling support is installed adopts position of fixity with basic being connected.
8. according to claim 7ly wave anti-buckling brace-frame structure system, it is characterized in that: on the bottom surface of the frame column of the described reinforced concrete frame that anti-buckling support is installed, be provided with built-in fitting.
9. according to the anti-buckling brace-frame structure system of waving described in claim 7 or 8, it is characterized in that: on the basis contacting with the bottom surface of the frame column of the described reinforced concrete frame that anti-buckling support is installed, be provided with built-in fitting.
10. according to claim 9ly wave anti-buckling brace-frame structure system, it is characterized in that: on the bottom peripheric surface of the frame column of the described reinforced concrete frame that anti-buckling support is installed, be provided with built-in fitting.
11. according to claim 10ly wave anti-buckling brace-frame structure system, it is characterized in that: on the basis contacting with the bottom peripheric surface of the frame column of the described concrete frame that anti-buckling support is installed, be provided with built-in fitting.
12. according to claim 11ly wave anti-buckling brace-frame structure system, it is characterized in that: the built-in fitting being provided with on the concrete frame trestle of anti-buckling support is connected with the built-in fitting on basis by damper, by damper, basis and the concrete frame that anti-buckling support has been installed are linked together, described damper is also vertical dissipative cell.
13. according to claim 1ly wave anti-buckling brace-frame structure system, it is characterized in that: for steel work.
14. according to claim 13ly wave anti-buckling brace-frame structure system, it is characterized in that: described framework is steel frame.
15. according to claim 14ly wave anti-buckling brace-frame structure system, it is characterized in that: described steel frame comprises frame column, the Vierendeel girder that anti-buckling support is installed and frame column, the Vierendeel girder that anti-buckling support is not installed.
16. according to claim 15ly wave anti-buckling brace-frame structure system, it is characterized in that: steel frame wherein one across or several across frame column and Vierendeel girder between anti-buckling support is installed, between other frame column of steel frame and Vierendeel girder, anti-buckling support is not installed.
17. according to claim 16ly wave anti-buckling brace-frame structure system, it is characterized in that: the bottom that the frame column of the steel frame of anti-buckling support is not installed adopts fixed end with basic being connected.
18. according to the anti-buckling brace-frame structure system of waving described in claim 16 or 17, it is characterized in that: the bottom that the concrete frame trestle of anti-buckling support is installed adopts position of fixity with basic being connected.
19. according to claim 18ly wave anti-buckling brace-frame structure system, it is characterized in that: on the basis contacting with the bottom surface of the described Steel Frame Column that anti-buckling support is installed, be provided with built-in fitting.
20. according to claim 19ly wave anti-buckling brace-frame structure system, it is characterized in that: on the basis contacting with the bottom peripheric surface of the described Steel Frame Column that anti-buckling support has been installed, be provided with built-in fitting.
21. according to claim 20ly wave anti-buckling brace-frame structure system, it is characterized in that: the Steel Frame Column that anti-buckling support is installed is connected with the built-in fitting on basis by damper, by damper, basis and the concrete frame that anti-buckling support is installed are linked together.
22. wave anti-buckling brace-frame structure system comprises that for the construction method of reinforced concrete structure build on basis, frame column is built, it is characterized in that: together with carrying out when build on basis, damper being cast in basis, together with carrying out when frame column is built, damper being cast in frame column; Described damper is arranged between frame column and basic gap, forms position of fixity, and wave anti-buckling support frame with the common composition of anti-buckling support.
CN201210052399.9A 2012-03-02 2012-03-02 Swinging buckling restrained brace and frame structure system and construction method thereof CN102587531B (en)

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CN103628565B (en) * 2013-12-09 2015-10-28 大连理工大学 Frame-brace waves across structural system
CN103628587B (en) * 2013-12-09 2015-08-19 大连理工大学 Self-reset girder-grid friction wall structural system
CN106401209A (en) * 2016-05-26 2017-02-15 南京长江都市建筑设计股份有限公司 Assembling integral type framework buckling-prevention supporting structure
CN108360669A (en) * 2018-01-24 2018-08-03 南通蓝科减震科技有限公司 A kind of beam-column hinged steel frame structural system of the difunctional component of carrying energy dissipating
CN108824663B (en) * 2018-07-04 2020-05-26 什邡泰锐钢结构工程有限公司 Three-dimensional multi-order yielding blocking building tumbler structure and component under extreme earthquake
CN109868897A (en) * 2019-03-14 2019-06-11 青岛理工大学 Need to lay the assembled RC frame structure of anti-buckling support based on storey stiffness

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Inventor before: Peng Youkai

Inventor before: Zhang Yanxia

Inventor before: Zhang Yang

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Granted publication date: 20141022

Termination date: 20200302