CN102628296A - Truss type steel-reinforced concrete framework side node with energy dissipation device - Google Patents
Truss type steel-reinforced concrete framework side node with energy dissipation device Download PDFInfo
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- CN102628296A CN102628296A CN2012101237710A CN201210123771A CN102628296A CN 102628296 A CN102628296 A CN 102628296A CN 2012101237710 A CN2012101237710 A CN 2012101237710A CN 201210123771 A CN201210123771 A CN 201210123771A CN 102628296 A CN102628296 A CN 102628296A
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Abstract
The invention relates to a truss type steel-reinforced concrete framework side node with an energy dissipation device. The steel skeleton in a beam is a truss type steel skeleton, which comprises vertical members, chord members and diagonal members. T-shaped profile steels are arranged on the upper and the lower parts of the beam to serve as the chord members, and are connected through angle irons, so that a truss type steel skeleton concrete beam member is formed. The vertical members and the chord members on the ends of the beam and in the core area of the node form a rectangular structure, the diagonal members are crossed, and are welded between the upper chord members and the lower chord members, the truss type steel skeleton extends into a column, and the length of the extending end is 0.9 times as the width of the section of the column in the direction. The ductility, equivalent viscous damping coefficient he and average energy dissipation coefficient Beta of the truss type steel-reinforced concrete framework side node with the energy dissipation device disclosed by the invention are remarkably increased in comparison with the ductility, equivalent viscous damping coefficient he and average energy dissipation coefficient Beta of reinforced concrete nodes. The truss type steel-reinforced concrete framework side node with the energy dissipation device has good structural seismic resistance and energy-dissipating capability.
Description
One, technical field
The present invention relates to the node component in steel reinforced concrete structure, structural seismic and the structure control research direction in the field of civil engineering Structural Engineering subject, specifically a kind of truss-like steel reinforced concrete leg of frame node with energy-dissipating device.
Two, background technology
Frame construction is one of form of structure the most frequently used in the construction work, is divided into reinforced concrete frame structure, steel reinforced concrete frame construction and steel structure frame structure usually according to the different frames structure of constructional materials.Frame joint is that effective connection box is set a roof beam in place, the post member, makes its two cooperative pith, is transmitting and is distributing aspects such as internal force, the globality that guarantees structure and ductility to play an important role.The rational design node seismic energy that can effectively dissipate prevents that structural entity from collapsing.The quality of node anti-seismic performance is directly connected to the anti-seismic performance of total, and frame joint is the key technology of framework design.
Steel reinforced concrete structure is the combining structure of joining shaped steel in a kind of; Since this structure composition reinforced concrete structure and steel work advantage separately; Remarkable advantage such as have the bearing capacity height, rigidity is big, structure ductility good, energy dissipation capacity is strong, antirust, anti-fire, malformation are little; Obtain showing great attention to of numerous researchers, become Structural Engineering field research direction, and obtained attention and application more and more widely in countries in the world.
Research for steel reinforced concrete structure; External many scholars have carried out a large amount of low Zhou Fanfu and pseudo to the steel reinforced concrete structure anti-seismic performance; Structural seismic performance, failure mode, ductility, energy dissipation capacity and method for designing etc. are furtherd investigate; Obtained a series of achievement in research, various countries have formulated corresponding steel reinforced concrete design clause or standard, and in construction work and bridge engineering, are used widely.The progressively maturation that deeply reaches the theory of computation along with the research of steel reinforced concrete member; With the steel reinforced concrete member is that the new structure system of main supporting member emerges in an endless stream; The research of steel reinforced concrete is also progressively by the member diversion system, by the research steering steel reinforced concrete of single type steel concrete system and the research of the combined new structure system that produces of steel concrete, steel and prestressing technique.Various countries combine steel reinforced concrete and reinforced concrete structural element just in a large number and are applied in the highrise building, are the new structure system of main supporting member thereby form with the steel-concrete combined member.
In the steel reinforced concrete structure, although real abdomen formula steel reinforced concrete structure commonly used at present has remarkable advantages such as supporting capacity height, the rigidity of structure is big, structure ductility good, energy dissipation capacity is strong, malformation is little.But the structural steel amount is big, and reinforcing bar and concrete binding power are relatively poor, needs to increase special crab-bolt and improves reinforcing bar and concrete adhesive property, and real abdomen formula steel reinforced concrete frame construction node is because reinforcing bar can't pass joint structure and all more complicated of constructing.The present invention just is being based on a kind of novel form of structure that above technical background proposes.
Three, summary of the invention
The purpose of this invention is to provide a kind of anti-seismic performance good, can be used for factory and construct simultaneously in the scene, a kind of truss-like steel reinforced concrete leg of frame node with energy-dissipating device of accelerating construction progress.
The present invention adopts following technical scheme to achieve the above object: a kind of truss-like steel reinforced concrete leg of frame node with energy-dissipating device is provided, and the reinforcing bar in the beam is a truss-like shaped steel skeleton, and it is to be made up of montant, chord member and brace.The upper and lower position that is configured in beam with tee bar is as chord member, and tee bar links to each other with angle steel, constitutes truss-like steel reinforced concrete beam.Wherein form rectangular configuration at the montant and the chord member of beam-ends and joint cores, brace is cross-shaped, is welded between upper chord and the lower chord, and truss-like shaped steel skeleton stretches in the reinforced concrete post, and inserting end length is 0.9 times of this direction column section width.
Outstanding substantive distinguishing features of the present invention and beneficial effect are:
1, have good anti-seismic performance, good structure ductility is convenient to be designed to the joint form that the beam-ends flexure type destroys; Intersection web member in joint cores and beam-ends setting; Be equivalent to a passive damping control device; Have the Passive Control characteristics, node component has good energy dissipation capacity under the antidetonation load action, can carry out parameter regulation according to the difference of requirements for fortification against earthquake; Realize energy-dissipating and shock-absorbing more effectively, and then improve the whole anti-seismic performance of frame structure system; Truss-like shaped steel skeleton in the beam can bear working load, gives full play to the advantage of steel work.
2, the truss-like reinforcing bar can effective improved-type steel frame and concrete adhesive property because there is shear action in web member; Appropriate design truss-like steel reinforced concrete frame joint not only can effectively solve real abdomen formula steel framed concrete beam and post node and intersect and wear muscle and handle the problem of difficulty; And can effectively improve the anti-seismic performance and the energy dissipation capacity of structure; Get into the plastic stage, under the large deformation situation, the intersection web member of node area and beam-ends setting can play good power consumption effect; Become energy-consumption shock-absorption device, the setting of intersection web member and the characteristic of truss-like reinforcing bar can play the effect that delays destruction of a node.
3, the truss-like reinforcing bar can with the upper and lower position of tee bar reasonable disposition at beam, be given full play to shaped steel intensity according to the height of truss-like shaped steel skeleton in the depth of section adjustment beam of beam, is a kind of form of structure with wide application prospect.
Four, description of drawings
Fig. 1 is the truss-like steel reinforced concrete leg of frame joint form sketch map that truss-like steel framed concrete beam of the present invention-reinforced concrete post is formed.
Fig. 2 is the a-a sectional view among Fig. 1.
Five, the specific embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is described in further detail.
Map 1, the truss-like steel reinforced concrete leg of frame node of band energy-dissipating device of the present invention, it is to be made up of first brace 1, second brace 2, upper chord 3, lower chord 4, montant 5, the 3rd brace 6.Wherein, montant 5, upper chord 3, lower chord 4 formed rectangular configuration, and first brace 1, second brace 2 are cross-shaped, is welded between upper chord 3 and the lower chord 4, and first brace 1, second brace 2 are respectively core space and beam-ends and intersect web member.Truss-like shaped steel skeleton stretches in the post, and inserting end length is 0.9 times of this direction column section width.It below is the structural performance index contrast of two kinds of multi-form nodes.
The result of the test of the truss-like steel reinforced concrete leg of frame node of table 1 band energy-dissipating device
Find out ductility μ, the equivalent viscous h of the truss-like steel reinforced concrete leg of frame node of band energy-dissipating device from the result of the test of table 1
e, average energy dissipation factor β is significantly improved than the steel concrete node.Show that its structural seismic performance is good, good energy-dissipating and shock-absorbing ability is arranged.
Claims (2)
1. the truss-like steel reinforced concrete leg of frame node with energy-dissipating device is characterized in that the reinforcing bar in the beam is a truss-like shaped steel skeleton; It is to be made up of montant, chord member, brace; The upper and lower position that is configured in beam with tee bar is as chord member, and tee bar links to each other with angle steel, constitutes truss-like steel reinforced concrete beam; Wherein form rectangular configuration at the montant and the chord member of beam-ends and joint cores; Brace is cross-shaped, is welded between upper chord and the lower chord, and truss-like shaped steel skeleton stretches in the reinforced concrete post.
2. the truss-like steel reinforced concrete leg of frame node of band energy-dissipating device according to claim 1; It is characterized in that; Upper and lower chord member sectional area is adjusted according to practical structures in the shaped steel skeleton, and truss-like shaped steel skeleton stretches in the post, and inserting end length is 0.9 times of this direction column section width.
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| CN2012101237710A CN102628296A (en) | 2012-04-25 | 2012-04-25 | Truss type steel-reinforced concrete framework side node with energy dissipation device |
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| CN2012101237710A CN102628296A (en) | 2012-04-25 | 2012-04-25 | Truss type steel-reinforced concrete framework side node with energy dissipation device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669924A (en) * | 2012-09-07 | 2014-03-26 | 沈阳铝镁设计研究院有限公司 | Novel node structure for power transformation frame rectangular section angle iron frame girder wire hanging board |
| CN106193446A (en) * | 2016-08-31 | 2016-12-07 | 济南市人防建筑设计研究院有限责任公司 | The groove type plate of skeleton made by a kind of steel truss |
| CN106978853A (en) * | 2017-05-05 | 2017-07-25 | 哈尔滨工业大学深圳研究生院 | A kind of controllable steel node of prefabricated assembled concrete structural plasticity |
| CN109629674A (en) * | 2019-01-10 | 2019-04-16 | 中南大学 | Sliding friction energy-consumption truss, production method and building structure |
| CN113761631A (en) * | 2021-09-10 | 2021-12-07 | 福州大学 | Softening tension-compression rod model correction method suitable for inclined column-beam joint |
| CN114960934A (en) * | 2022-05-24 | 2022-08-30 | 中铁上海设计院集团有限公司 | Method for enhancing shear-resistant bearing capacity of conversion beam |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669924A (en) * | 2012-09-07 | 2014-03-26 | 沈阳铝镁设计研究院有限公司 | Novel node structure for power transformation frame rectangular section angle iron frame girder wire hanging board |
| CN103669924B (en) * | 2012-09-07 | 2016-04-27 | 沈阳铝镁设计研究院有限公司 | A kind of substation framework square-section angle iron frame beam thread gripping-board novel joint structure |
| CN106193446A (en) * | 2016-08-31 | 2016-12-07 | 济南市人防建筑设计研究院有限责任公司 | The groove type plate of skeleton made by a kind of steel truss |
| CN106978853A (en) * | 2017-05-05 | 2017-07-25 | 哈尔滨工业大学深圳研究生院 | A kind of controllable steel node of prefabricated assembled concrete structural plasticity |
| CN109629674A (en) * | 2019-01-10 | 2019-04-16 | 中南大学 | Sliding friction energy-consumption truss, production method and building structure |
| CN109629674B (en) * | 2019-01-10 | 2024-01-12 | 中南大学 | Sliding friction energy consumption truss, manufacturing method and building structure |
| CN113761631A (en) * | 2021-09-10 | 2021-12-07 | 福州大学 | Softening tension-compression rod model correction method suitable for inclined column-beam joint |
| CN113761631B (en) * | 2021-09-10 | 2024-02-06 | 福州大学 | Softening tension compression bar model correction method suitable for inclined column-beam joint |
| CN114960934A (en) * | 2022-05-24 | 2022-08-30 | 中铁上海设计院集团有限公司 | Method for enhancing shear-resistant bearing capacity of conversion beam |
| CN114960934B (en) * | 2022-05-24 | 2023-05-26 | 中铁上海设计院集团有限公司 | Method for enhancing shear bearing capacity of conversion beam |
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Application publication date: 20120808 |