CN206616706U - A kind of column with variable cross-sections girder connection plastic hinge - Google Patents

A kind of column with variable cross-sections girder connection plastic hinge Download PDF

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Publication number
CN206616706U
CN206616706U CN201720271779.XU CN201720271779U CN206616706U CN 206616706 U CN206616706 U CN 206616706U CN 201720271779 U CN201720271779 U CN 201720271779U CN 206616706 U CN206616706 U CN 206616706U
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CN
China
Prior art keywords
elastic force
concrete
carbon fiber
plastic hinge
beams
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Expired - Fee Related
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CN201720271779.XU
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Chinese (zh)
Inventor
彭晓晖
刘康宁
王社良
张世民
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Xijing University
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Xijing University
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Priority to CN201720271779.XU priority Critical patent/CN206616706U/en
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Publication of CN206616706U publication Critical patent/CN206616706U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of column with variable cross-sections girder connection plastic hinge, including the elastic force beams of concrete connected between two carbon fiber posts, the span centre position of elastic force beams of concrete configures the main stress reinforcing bar above and below some, and the construction waist muscle of the axis configuration of elastic force beams of concrete crosses whole elastic force beams of concrete;Elastic force beams of concrete Ge Kai mono- above and below the two ends of carbon fiber post can form the groove of plastic hinge, the lower end of groove is disposed with bending muscle and extends into carbon fiber post and anchored, two ends configuration encryption stirrup of the elastic force beams of concrete close to carbon fiber post, elastic force beams of concrete uses elastic force cement material close to the two ends of carbon fiber post and span centre position, the effect of the utility model beam section plastic hinge under earthquake, so that being destroyed before Liang Zhu, it is ensured that integrally-built stability.

Description

A kind of column with variable cross-sections girder connection plastic hinge
Technical field
The utility model is related to the plastic hinge technical field of civil engineering, and in particular to a kind of node of column and beam modeling of variable cross-section Property hinge.
Background technology
It is the country of a multiple earthquake between China, therefore it is essential to carry out providing fortification against earthquakes in architectural design, instantly Anti-seismic structure design among, be typically all gone according to the theory of " strong column and weak beam ", " strong shear capacity and weak bending capacity " and " the strong weak component of node " Carry out structure design.But from the point of view of the degree that actual coming earthquake building is damaged, often there are the feelings such as " the weak post of brutal " Condition, is primarily due among general frame structure, and beam is due to upper and lower plates and the effect of contraction of wall, and current seismic simultaneously Specification is for the structural specificationses of bean column node, and often reinforcing bar distribution is more close at node, bears larger bearing capacity, so Just occur that beam is not destroyed the reality that styletable is destroyed and brought about great losses on the contrary in the case of reality.
The plastic hinge structure of current civil engineering mainly has:The arrangement of reinforcement of beam column is reduced under the guarantee of security, divides beam It is subject to damper for two sections and in junction to carry out damping or be internally subject to moulding Energy dissipating material such as high-damping rubber etc., this The shortcomings of a little measures can also produce the not enough intensity at node, cumbersome and not high economy of constructing, although can also realize beam End first produces plastic hinge destruction makes the situation destroyed after post again, but be widely applied it is more difficult.
The content of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to design a kind of column with variable cross-sections girder connection Plastic hinge, passes through the effect of beam section plastic hinge under earthquake so that destroyed before Liang Zhu, it is ensured that integrally-built stability.
In order to achieve the above object, the technical scheme that the utility model is taken is:
The elastic force beams of concrete 2 connected between a kind of column with variable cross-sections girder connection plastic hinge, including two carbon fiber posts 1, bullet The span centre position of power beams of concrete 2 configures the main stress reinforcing bar 5 above and below some, the structure of the axis configuration of elastic force beams of concrete 2 Make waist muscle 4 and cross whole elastic force beams of concrete 2;Ge Kai mono- can shape above and below the two ends of carbon fiber post 1 for elastic force beams of concrete 2 Into the groove 3 of plastic hinge.
Described groove 3 takes the effective depth H of elastic force beams of concrete 2 apart from the length of carbon fiber post 10;Plastic hinge at groove 3 Length takes the effective depth H of elastic force beams of concrete 200.2~0.5.
The lower end of described groove 3 is disposed with bending muscle 6 and extends into carbon fiber post 1 and anchored.
Two ends configuration encryption stirrup 7 of the described elastic force beams of concrete 2 close to carbon fiber post 1.
Described elastic force beams of concrete 2 uses elastic force cement material close to the two ends of carbon fiber post 1 and span centre position Material.
The beneficial effects of the utility model are:
Carbon fiber post 1 is added and intensity and attachment force of the elastic force beams of concrete 2 at node, it is ensured that carbon fiber post 1 is on ground Stability under shake;Simultaneously elastic cement material is used in the elastic force beams of concrete 2 close to the both sides of carbon fiber post 1 and span centre position Material is made, and elastic concrete is higher than common crack-resistant performance of concrete 500 times, light weight 40% or so, and the beam at groove 3 Section concrete selects corresponding concrete strength to be poured according to design requirement, bigger by using elastic concrete Intensity ensures under geological process, at elastic force beams of concrete 2 and the connecting node of carbon fiber post 1 can bear larger flexural deformation, Beam is initially formed the primary destruction of plastic hinge generation at variable cross-section at groove 3.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Make detailed narration to the utility model below in conjunction with the accompanying drawings.
Reference picture 1, the elastic force coagulation connected between a kind of column with variable cross-sections girder connection plastic hinge, including two carbon fiber posts 1 Native beam 2, the span centre position of elastic force beams of concrete 2 is configured the main stress reinforcing bar 5 above and below some, elastic force beams of concrete by design requirement The construction waist muscle 4 of 2 axis configuration crosses whole elastic force beams of concrete 2;Elastic force beams of concrete 2 close to carbon fiber post 1 two Ge Kai mono- can form the groove 3 of plastic hinge above and below end.
Described groove 3 takes the effective depth H of elastic force beams of concrete 2 apart from the length of carbon fiber post 10;Plastic hinge at groove 3 Length takes the effective depth H of elastic force beams of concrete 200.2~0.5.
The lower end of described groove 3 is disposed with bending muscle 6 and extends into carbon fiber post 1 and anchored, and prevents that groove 3 from becoming section Larger detrusion occurs under normal usage for the elastic force beams of concrete 2 at face.
Described elastic force beams of concrete 2 encrypts stirrup 7 to prevent beam close to the two ends configuration encryption stirrup 7 of carbon fiber post 1 Failure by shear at Column border node.
Described elastic force beams of concrete 2 uses elastic force cement material close to the two ends of carbon fiber post 1 and span centre position Material.
And operation principle of the present utility model is:
Depth of section of the elastic force beams of concrete 2 at lower notches 3 is less than overall depth of section first, forms a class Like variable cross-section so that it is easier the first rupture failure under larger flexural deformation in coming earthquake as a plastic hinge, To ensure that elastic force beams of concrete 2 is first destroyed, destroyed after carbon fiber post 1.
Carbon fiber post 1 increases the intensity and attachment force at node, it is ensured that carbon fiber post 1 is with connecting node under earthquake Intensity, stability;Elastic force beams of concrete 2 is using elastic force cement material close to the both sides of carbon fiber post 1 and span centre position simultaneously Material, beam concrete selects corresponding cement to be poured according to design requirement at groove 3, using elastic force concrete than common Crack-resistant performance of concrete high intensity it is big, lightweight and deformation extent is big, prolong the good mechanical characteristic of elasticity so that the bullet under earthquake The span centre of power beams of concrete 2 and end sections can form beam at larger deflection deformation, groove 3 because variable cross-section and ultimate strength Intensity less than remaining region elastic concrete forms plastic hinge until destroying, and destroys whole elastic force beams of concrete 2, most Destruction carbon fiber post 1, is formed " strong column and weak beam " eventually.

Claims (5)

1. a kind of column with variable cross-sections girder connection plastic hinge, it is characterised in that:Elastic force including being connected between two carbon fiber posts (1) is mixed Solidifying Tu Liang (2), the span centre position of elastic force beams of concrete (2) configures the main stress reinforcing bar (5) above and below some, elastic force beams of concrete (2) the construction waist muscle (4) of axis configuration crosses whole elastic force beams of concrete (2);Elastic force beams of concrete (2) is close to carbon fiber The groove (3) that Ge Kai mono- can form plastic hinge above and below the two ends of post (1).
2. a kind of column with variable cross-sections girder connection plastic hinge according to claim 1, it is characterised in that:Described groove (3) away from Length from carbon fiber post (1) takes elastic force beams of concrete (2) effective depth H0;Groove (3) place Plastic hinge length takes elastic force coagulation Tu Liang (2) effective depth H00.2~0.5.
3. a kind of column with variable cross-sections girder connection plastic hinge according to claim 1, it is characterised in that:Described groove (3) Lower end is disposed with bending muscle (6) elongation and anchored into carbon fiber post (1).
4. a kind of column with variable cross-sections girder connection plastic hinge according to claim 1, it is characterised in that:Described elastic force concrete Two ends configuration encryption stirrup (7) of the beam (2) close to carbon fiber post (1).
5. a kind of column with variable cross-sections girder connection plastic hinge according to claim 1, it is characterised in that:Described elastic force concrete Beam (2) close to carbon fiber post (1) two ends and span centre position use elastic force cement material.
CN201720271779.XU 2017-03-20 2017-03-20 A kind of column with variable cross-sections girder connection plastic hinge Expired - Fee Related CN206616706U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720271779.XU CN206616706U (en) 2017-03-20 2017-03-20 A kind of column with variable cross-sections girder connection plastic hinge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720271779.XU CN206616706U (en) 2017-03-20 2017-03-20 A kind of column with variable cross-sections girder connection plastic hinge

Publications (1)

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CN206616706U true CN206616706U (en) 2017-11-07

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108360750A (en) * 2018-03-12 2018-08-03 中国地震局工程力学研究所 A kind of novel frame structure beam-ends reinforcement detailing and its design method
CN109763602A (en) * 2019-03-11 2019-05-17 江南大学 A kind of classification wave inception arrangement of reinforcement RC beam
CN111173192A (en) * 2020-01-06 2020-05-19 山东建筑大学 Large-span variable cross-section beam
CN111910834B (en) * 2018-03-12 2021-09-24 中国地震局工程力学研究所 Design method of long longitudinal rib bent frame structure beam end reinforcement structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108360750A (en) * 2018-03-12 2018-08-03 中国地震局工程力学研究所 A kind of novel frame structure beam-ends reinforcement detailing and its design method
CN111910834A (en) * 2018-03-12 2020-11-10 中国地震局工程力学研究所 Design method of novel beam end reinforcement structure with long longitudinal reinforcement bent
CN111910834B (en) * 2018-03-12 2021-09-24 中国地震局工程力学研究所 Design method of long longitudinal rib bent frame structure beam end reinforcement structure
CN109763602A (en) * 2019-03-11 2019-05-17 江南大学 A kind of classification wave inception arrangement of reinforcement RC beam
CN111173192A (en) * 2020-01-06 2020-05-19 山东建筑大学 Large-span variable cross-section beam

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Granted publication date: 20171107

Termination date: 20200320