CN102587531A - 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 PDFInfo
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- CN102587531A CN102587531A CN2012100523999A CN201210052399A CN102587531A CN 102587531 A CN102587531 A CN 102587531A CN 2012100523999 A CN2012100523999 A CN 2012100523999A CN 201210052399 A CN201210052399 A CN 201210052399A CN 102587531 A CN102587531 A CN 102587531A
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- 238000010276 construction Methods 0.000 title abstract description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 30
- 239000004567 concrete Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 230000008439 repair process Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
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- 208000014674 injury Diseases 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
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Abstract
摇摆防屈曲支撑-框架结构体系及其施工方法，其包括防屈曲支撑、框架、基础、固定端以及嵌固端。其中所述框架上安装有所述防屈曲支撑，框架通过固定端和嵌固端方式固定在基础上。主要特点为将支撑框架柱与基础的固定端放松约束，在竖向设置有耗能元件的嵌固端。该体系结构刚度大，地震作用下位移小，耗能减震效果好，防屈曲支撑作为可替换耗能元件，在震后可以方便的更换。
Sway anti-buckling bracing-frame structure system and its construction method, which includes anti-buckling bracing, frame, foundation, fixed end and embedded end. Wherein the anti-buckling support is installed on the frame, and the frame is fixed on the foundation through a fixed end and an embedded end. The main feature is to loosen the constraints on the fixed ends of the supporting frame columns and the foundation, and to set the embedded ends of energy-dissipating elements vertically. The structure of this system has high rigidity, small displacement under earthquake action, good energy dissipation and shock absorption effect, and the buckling-resistant brace is a replaceable energy dissipation element, which can be easily replaced after the earthquake.
Description
Technical field
The present invention relates to the civil engineering structure technical field, relate in particular to a kind of anti-flexing brace-frame structure system and its job practices of waving.
Background technology
Traditional Seismic Design Method allows structure when violent earthquake, to get into nonlinear state; Rely on the dissipate energy of earthquake motion input of the elastic-plastic deformation of agent structure and member, the target of providing fortification against earthquakes of realization building structure " not bad, the middle shake of little shake can be repaiied, no collapsing with strong earthquake ".Yet; Structure and member receive the effect of complicated reciprocal load in seismic process, 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 when meeting with fortification intensity or surpassing the earthquake of fortification intensity, agent structure does not take place to destroy or major injury with main supporting member.As starting point; Consider the injury repair cost of structure after earthquake; Through taking to change dissipative cell, do not repair or local recovering structure function very soon after repairing measure such as agent structure, become the inevitable requirement and the development trend of new century seismic design of structures.
Buckling-resistant support structure is to use one of structural seismic new system wide, the most with the fastest developing speed at present.The basic thought of this type of structural system seismic design is: as the first line of defence of setting up defences; Anti-flexing is supported on and bears most of floor shearing in the earthquake; At first get into yield situation, and in this process, concentrate most of seismic energy that dissipates, thereby alleviate the damage and the destructiveness of agent structure.Under the geological process, the stressed maximum characteristics of buckling-resistant support structure are: most of horizontal drag is provided by the framework that adds the flexing support of setting up defences, and the axle power of the frame column in adding the flexing support frame of setting up defences changes highly significant.Along with increasing of structure level number; Under middle shake and big shake effect; Anti-flexing supports and gets into yield situation, and the frame segment trestle that adds in the flexing support frame of setting up defences is very big along the pulling force of the axial accumulation of pillar, and dead load is not enough to offset whole axial tensions; Make significant pulling force to occur in the frame column, be delivered in the basis simultaneously.A little less than strong, the resistance to tension of anti-pressure ability on basis, safety cannot say for sure card.Drawing significantly, bend, cutting under the composite force situation, basic engineering is difficulty very, this just big limitations anti-flexing be supported in the highrise building and use, become anti-flexing and be supported on the bottleneck of engineering in applying.
Summary of the invention
The objective of the invention is to solve the bottleneck and the technical barrier that in the buckling-resistant support structure design, run at present, advance the buckling-resistant support structure system, propose a kind of anti-flexing brace-frame structure system of waving in the application that China puts into practice engineering.
For realizing above-mentioned purpose, the present invention realizes through following technical scheme: a kind of waving prevented flexing brace-frame structure system, and it comprises anti-flexing support, framework, basis, fixed end and position of fixity.Said anti-flexing is installed on the wherein said framework supports, framework is fixed on the basis through fixed end and position of fixity mode.Main feature is with the fixed end relaxed constraints of carriage trestle with the basis, at the vertical position of fixity with dissipative cell that is provided with.This system is mainly based on following consideration: 1. carriage trestle fixed end constraint is loosened make that significant axial tension discharges effectively in the pillar in the basis; Solve the design challenges that exists in the present basic engineering thus; The use that makes anti-flexing support does not receive the restriction of building height, produces qualitative leap; 2. suspension column can slightly lift in violent earthquake, form to have the structural system of waving of damping effect, and through the vertical dissipative cell of suspension column, the dissipative part seismic energy, thus alleviate destructiveness to agent structure; 3. setting up on the one hand of suspension column dissipative cell can the dissipative part seismic energy, and " waving scope " that in addition on the one hand can the framing mask trestle has reset function.
Preferably, said fixed end is the combination that comprises frame column and basis, and said position of fixity is the combination that comprises frame column, damper and basis.
Preferably, the present invention is applicable to reinforced concrete structure.
Preferably, said framework is a reinforced concrete frame.
Preferably, said reinforced concrete frame comprises frame column and the Vierendeel girder that anti-flexing support is installed and frame column and the Vierendeel girder that anti-flexing supports is installed.
Preferably, reinforced concrete frame wherein one stride or several frame column of striding and Vierendeel girder between anti-flexing be installed support, between other frame column of just reinforced concrete framework and Vierendeel girder, anti-flexing is installed and supports.Support special structure through anti-flexing, avoid the problem of the reinforced concrete frame pressurized flexing at center, when being drawn, can surrender and flexing not, can better consume the seismic energy of input structure with pressurized.
Preferably, fixed end is adopted with being connected of basis in the said bottom that the frame column of the reinforced concrete frame of preventing that flexing supports is installed.
Preferably, position of fixity is adopted with being connected of basis in the bottom that the frame column of the reinforced concrete frame of preventing that flexing supports is installed.
Preferably, on the bottom surface of the said frame column that the reinforced concrete frame that anti-flexing supports has been installed, be provided with built-in fitting.
Preferably, on the bottom peripheric surface of the said frame column that the reinforced concrete frame that anti-flexing supports has been installed, be provided with built-in fitting.
Preferably, with basis that the said bottom surface that the frame column of the reinforced concrete frame that anti-flexing supports has been installed contacts on be provided with built-in fitting.
Preferably, with basis that the said bottom peripheric surface that the frame column of the concrete frame that anti-flexing supports has been installed contacts on be provided with built-in fitting.
Preferably, the built-in fitting of having installed on the concrete frame trestle that anti-flexing supports is connected with built-in fitting on the basis through damper, promptly through damper basis and concrete frame trestle that anti-flexing support has been installed is linked together.Said damper also is vertical dissipative cell, and when reinforced concrete frame column received pulling force or downward pressure upwards, the vertical dissipative cell between reinforced concrete frame column and the basis can receive very big power, and then makes damper produce distortion, power consumption.
Preferably, the present invention is applicable to steel work.
Preferably, said framework is a steel frame.
Preferably, described waving prevented flexing brace-frame structure system, it is characterized in that: said steel frame comprises frame column, the Vierendeel girder that anti-flexing is installed supports and frame column, the Vierendeel girder of anti-flexing support is installed.
Preferably, steel frame wherein one stride or several frame column of striding and Vierendeel girder between anti-flexing be installed support, between other frame column of just framework and Vierendeel girder, anti-flexing is installed and supports.
Fixed end is adopted with being connected of basis in the bottom of preferably, the frame column of the firm framework of preventing that flexing supports being installed.
Preferably, position of fixity is adopted with being connected of basis in the bottom that the concrete frame trestle of anti-flexing support is installed.
Preferably, with basis that the said bottom surface that the firm frame column that anti-flexing supports has been installed contacts on be provided with built-in fitting.
Preferably, with basis that the said bottom peripheric surface that the firm frame column that anti-flexing supports has been installed contacts on be provided with built-in fitting.
Preferably, firm frame column that anti-flexing supports has been installed has been connected with built-in fitting on the basis, promptly basis and concrete frame trestle that anti-flexing support has been installed have been linked together through damper through damper.
Prevent that according to of the present invention waving flexing brace-frame structure system is with the fixed end relaxed constraints of carriage trestle with the basis, at the vertical position of fixity that is provided with dissipative cell.When structure received the geological process of different stage, the position of fixity of the frame column of framework bottom can produce different displacement with the basis.Under little shake effect, relative displacement does not take place with the basis in frame column bottom basically, and seismic energy mainly supports through anti-flexing and dissipates; Under middle shake effect; The relative displacement on frame column bottom and basis is in the scope of design control; Connect the damper of basis bottom frame column and begin to bring into play the power consumption effect; Simultaneously waving by a small margin takes place in frame superstructure, and the anti-flexing in the framework supports surrender, dissipates the seismic energy of most of input; Under big shake effect, frame column bottom position of fixity can be thrown off with the basis, takes place to wave freely, and the ordinary construction frame beam column produces plastic strain, and anti-simultaneously flexing supports will give full play to its power consumption effect.
Its rigidity of structure is big, and the geological process bottom offset is little, and energy-dissipating and shock-absorbing is effective, and anti-flexing supports as replaceable dissipative cell, after shake, can change easily.
Description of drawings
Fig. 1 is an anti-flexing brace-frame structure sketch map in the prior art;
Fig. 2 is the structural representation that waves a preferred version of anti-flexing brace-frame structure system according to of the present invention;
Fig. 3 is shown in Figure 2 according to the specific practice front view that waves the vertical dissipative cell (damper) of the preferred version of preventing flexing brace-frame structure system of the present invention;
Fig. 4 is shown in Figure 2 according to the specific practice vertical view that waves the vertical dissipative cell (damper) of the preferred version of preventing flexing brace-frame structure system of the present invention;
Fig. 5 is shown in Figure 2 according to the basic position of fixity way view that waves the preferred version of anti-flexing brace-frame structure system of the present invention.
Reference numeral: framework 1, anti-flexing support 2, basis 3, frame column 4, damper 5, Vierendeel girder 6, basic arrangement of reinforcement 7, fixed end F, position of fixity M.
The specific embodiment
In order to understand the present invention better; Below in conjunction with accompanying drawing to being described in detail according to the preferred embodiment that waves anti-flexing brace-frame structure system of the present invention; Following description only is exemplary and indicative, should any restriction not arranged to protection scope of the present invention.
Fig. 2-5 shows a preferred version that waves anti-flexing brace-frame structure system according to of the present invention, and it comprises prevents flexing 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 used for reinforced concrete structure; Framework 1 is a reinforced concrete frame; Between the frame column 4 of striding in the just centre one of reinforced concrete framework and the Vierendeel girder 6 anti-flexing has been installed and has supported 2, supported 2 special structures, avoided the problem of the reinforced concrete frame pressurized flexing at center through preventing flexing; When being drawn, can surrender and flexing not, can better consume the seismic energy of input structure with pressurized.The bottom that anti-flexing supports the frame column 4 of 2 reinforced concrete frame is installed adopts fixed end F with being connected of basis 3, the bottom that the frame column 4 that anti-flexing supports 2 reinforced concrete frame has been installed with basic 3 be connected employing position of fixity M.On the bottom surface that the frame column 4 that anti-flexing supports 2 reinforced concrete frame has been installed and peripheric surface, be provided with built-in fitting, with basis that the bottom of the frame column of the reinforced concrete frame that anti-flexing support has been installed contacts on be provided with built-in fitting.The built-in fitting that anti-flexing supports on 2 the concrete frame trestle has been installed has been connected with built-in fitting on the basis 3, promptly basis 3 and concrete frame that anti-flexing support 2 has been installed have been linked together through damper 5 through damper 5.Damper 5 also is vertical dissipative cell, and when the frame column 4 of reinforced concrete frame received pulling force upwards or downward pressure, frame column 4 can receive very big power with damper 5 between the basis 3, and then makes damper 5 produce distortion, consume energy.
Embodiment 2: the present invention is used for steel work; Framework 1 is a steel frame; Stride in the centre one of steel frame and anti-flexing to be installed to support 2, support 2 special structures, avoid the problem of the steel frame pressurized flexing at center through anti-flexing; When being drawn, can surrender and flexing not, can better consume the seismic energy of input structure with pressurized.The bottom that anti-flexing supports the frame column 4 of 2 firm framework is installed adopts fixed end F with being connected of basis 3, the bottom that the frame column 4 that anti-flexing supports 4 firm framework has been installed with basic 3 be connected employing position of fixity M.With anti-flexing has been installed supports on the basis 3 that the bottom of the frame column 4 of 2 firm framework contacts and be provided with built-in fitting.Anti-flexing has been installed has supported 2 firm framework and is connected with built-in fitting on the basis 3, promptly basis 3 and concrete frame that anti-flexing support has been installed have been linked together through damper 5 through damper 5.
The course of work: during geological process; Along with the level of structure is waved, anti-flexing supports (power consumption support), and 2 generations are axially drawn, compressive strain, in axial reciprocal deformation process; For structure provides horizontal drag, and dissipate the most of seismic energy that is input in the structure.When anti-flexing support 2 deformed, the frame segment trestle 4 that the framework 1 of anti-flexing support 2 is installed can produce very big vertical pulling force.Under bigger tension, relative displacement can take place with basis 3 in frame column 4.When being subjected to displacement, vertical dissipative cell damper 5 can produce vertical shear strain, the dissipative part seismic energy, and restoring force is provided for frame column 4.When frame column 4 produced relative displacement with basis 3, framework 1 waved, and waved framework 1 and produced bigger distortion, thereby reduce the effect of earthquake to agent structure.In sum, under geological process, anti-flexing supports 2 stretch repeatedly and compress and vertical dissipative cell damper dissipates most seismic energy with the distortion of waving framework 1, and the protection agent structure bigger damage can not take place when earthquake.。
Wave the job practices that anti-flexing brace-frame structure system is used for reinforced concrete structure and comprise the step that build on the basis, frame column is built according to of the present invention; Damper is cast in the basis when building carrying out the basis, damper is cast in frame column when building carrying out frame column.
Need to prove; Comprise any one and combination in any thereof in the foregoing description according to anti-flexing brace-frame structure system and the job practices thereof of waving of the present invention; But embodiment recited above describes preferred implementation of the present invention; Be not that the scope of the invention is limited; Design under the spiritual prerequisite not breaking away 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 protection domain that claims of the present invention confirm.
Claims (10)
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| CN201210052399.9A CN102587531B (en) | 2012-03-02 | 2012-03-02 | Swinging buckling restrained brace and frame structure system and construction method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103628587A (en) * | 2013-12-09 | 2014-03-12 | 大连理工大学 | Self-reset girder-grid friction wall structural system |
| CN103628565A (en) * | 2013-12-09 | 2014-03-12 | 大连理工大学 | Framework-supported swaying-span 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 |
| CN106836643A (en) * | 2017-03-07 | 2017-06-13 | 西安建筑科技大学 | A kind of frame column that damper is slided with easily replacing staggered form |
| CN106930599A (en) * | 2015-12-31 | 2017-07-07 | 王圣玉 | The steel structure platform that steel structure platform frame unit and assembling build |
| 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 |
| CN108824663A (en) * | 2018-07-04 | 2018-11-16 | 什邡泰锐钢结构工程有限公司 | Pole shakes lower three-dimensional multistage yielding and stops to build construction and component |
| CN109281307A (en) * | 2018-11-10 | 2019-01-29 | 重庆大学 | A new seismic structure system of jacket offshore platform with buckling restraint support |
| CN109706833A (en) * | 2018-11-10 | 2019-05-03 | 重庆大学 | A shock-absorbing rigid-frame bridge pier with buckling restraint braces |
| CN109868897A (en) * | 2019-03-14 | 2019-06-11 | 青岛理工大学 | Assembly type RC frame structure with buckling-restrained braces laid based on interlayer rigidity |
| CN110387955A (en) * | 2019-08-05 | 2019-10-29 | 北京建筑大学 | A New Controlled Sway Damping Structural System |
| CN112900923A (en) * | 2021-01-18 | 2021-06-04 | 四川省星光钢结构有限公司 | Villa of light steel construction with antidetonation effect |
| CN113137107A (en) * | 2021-04-14 | 2021-07-20 | 国核电力规划设计研究院有限公司 | Building frame supporting structure |
| CN113931312A (en) * | 2021-12-17 | 2022-01-14 | 北京科技大学 | Gravity and lateral force separated assembly type energy dissipation structure system and design method |
| CN114790849A (en) * | 2022-04-29 | 2022-07-26 | 西安建筑科技大学 | Novel swinging self-resetting structure capable of being lifted in column |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628587A (en) * | 2013-12-09 | 2014-03-12 | 大连理工大学 | Self-reset girder-grid friction wall structural system |
| CN103628565A (en) * | 2013-12-09 | 2014-03-12 | 大连理工大学 | Framework-supported swaying-span structural system |
| CN103628565B (en) * | 2013-12-09 | 2015-10-28 | 大连理工大学 | Frame-brace waves across structural system |
| CN106930599A (en) * | 2015-12-31 | 2017-07-07 | 王圣玉 | The steel structure platform that steel structure platform frame unit and assembling build |
| 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 |
| CN106836643A (en) * | 2017-03-07 | 2017-06-13 | 西安建筑科技大学 | A kind of frame column that damper is slided with easily replacing staggered form |
| 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 |
| CN108824663A (en) * | 2018-07-04 | 2018-11-16 | 什邡泰锐钢结构工程有限公司 | Pole shakes lower three-dimensional multistage yielding and stops to build construction and component |
| CN109281307A (en) * | 2018-11-10 | 2019-01-29 | 重庆大学 | A new seismic structure system of jacket offshore platform with buckling restraint support |
| CN109706833A (en) * | 2018-11-10 | 2019-05-03 | 重庆大学 | A shock-absorbing rigid-frame bridge pier with buckling restraint braces |
| CN109868897A (en) * | 2019-03-14 | 2019-06-11 | 青岛理工大学 | Assembly type RC frame structure with buckling-restrained braces laid based on interlayer rigidity |
| CN110387955A (en) * | 2019-08-05 | 2019-10-29 | 北京建筑大学 | A New Controlled Sway Damping Structural System |
| CN112900923A (en) * | 2021-01-18 | 2021-06-04 | 四川省星光钢结构有限公司 | Villa of light steel construction with antidetonation effect |
| CN113137107A (en) * | 2021-04-14 | 2021-07-20 | 国核电力规划设计研究院有限公司 | Building frame supporting structure |
| CN113931312A (en) * | 2021-12-17 | 2022-01-14 | 北京科技大学 | Gravity and lateral force separated assembly type energy dissipation structure system and design method |
| CN114790849A (en) * | 2022-04-29 | 2022-07-26 | 西安建筑科技大学 | Novel swinging self-resetting structure capable of being lifted in column |
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