CN102535635A - Reinforced concrete frame with processed column reinforcements at position of beam-column joint - Google Patents
Reinforced concrete frame with processed column reinforcements at position of beam-column joint Download PDFInfo
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- CN102535635A CN102535635A CN2012100142855A CN201210014285A CN102535635A CN 102535635 A CN102535635 A CN 102535635A CN 2012100142855 A CN2012100142855 A CN 2012100142855A CN 201210014285 A CN201210014285 A CN 201210014285A CN 102535635 A CN102535635 A CN 102535635A
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Abstract
The invention discloses a reinforced concrete frame with processed column reinforcements at the position of a beam-column joint, comprising a longitudinal stressed steel bar and a hooping of a column at the position of a conventional node of the reinforced concrete frame, the longitudinal stressed steel bar of the column adopts reinforcements with mixed FRP (fiber reinforce plastic) bars and steel bars, the FRP bars are distributed at the four corners of the column, a hooping thickening region at the end of the column is configured by the FRP bars and the steel bars which are fixed in a staggering manner, and the thickness of a concrete protective layer of the column is needed to be increased. The technical scheme in the invention is a feasible and novel form of column reinforcements at the node position, and when the node of the reinforced concrete frame is in use, the effect of prolonging the service life is achieved.
Description
Technical field
The present invention and a kind of reinforced concrete frame, the treated reinforced concrete frame of particularly a kind of bean column node place post arrangement of reinforcement.
Background technology
Node plays a part to transmit and distribute internal force in framework, the stirrup configuration of beam-ends and styletable is bigger to the shear behavior influence of node.Yet corrosion of steel bar will seriously influence the normal performance of nodal function, and the application life of reducing structure widely.For the necessary ductility and the application life that guarantee frame construction carrying out specially treated to node area.The FRP muscle is made up of high-performance fiber and matrix material, has advantages such as high-strength light, corrosion resistant, solenoid isolation property are good, and replacing reinforcing bar with it is to solve corrosion of steel bar to cause one of approach of the concrete damage and the problem of destruction.Therefore, the FRP tendon concrete structure has bright development prospect.Yet, low etc. like modulus of elasticity because the defective of its some aspect, so it is the direction that frame construction develops with the hybrid reinforcement of reinforcing bar.
Summary of the invention
In order to overcome the above defective that exists in the prior art, the present invention provides, and proposes the form of a kind of feasible, new node place post arrangement of reinforcement, and post arrangement of reinforcement treated reinforced concrete frame in promptly a kind of bean column node place makes the node durability strengthen.Its technical scheme is:
The treated reinforced concrete frame of a kind of bean column node place post arrangement of reinforcement; The longitudinal stress muscle and the stirrup that comprise reinforced concrete frame regular node place post; The longitudinal stress muscle of post adopts FRP muscle and reinforcing bar hybrid reinforcement; The FRP muscle is arranged in four jiaos of post, and styletable stirrup encrypted area adopts FRP muscle and staggered mixing of reinforcing bar to be configured, and need strengthen the thickness of concrete cover of post simultaneously.
Further preferred, the FRP muscle is it to be glued together through base material by continuous fiber more than 1 strand, again through the mould extruding with move with the hand moulding.Base material mainly plays bonding and Transfer of Shear effect, mainly contains mylar, epoxy resin, polyamide etc.
Further preferred, before arrangement of reinforcement, need the FRP muscle is carried out the surfacing of impression, scab, fiber winding formation screw thread.
Further preferred, said post encrypted area stirrup adopts FRP and reinforcing bar mixing to join hoop, and stirrup spacing is greater than or equal to the stirrup spacing that only disposes by reinforcing bar.
Further preferred, said encrypted area height L=max{hc, H/6,500},
Wherein: the depth of section of hc representational framework post, H are the post clear height.
Beneficial effect of the present invention:
Compared with prior art, the present invention has strengthened the node area corrosion resistance through the mode of rc-frame-beam post node area processing post arrangement of reinforcement.In addition, compared with prior art strengthen the application life of member, dead load is alleviated to a certain extent, and anti-fatigue performance is better simultaneously.The present invention has at first solved the durability of node, has strengthened its application life; Secondly, through this reinforcement manner, the shear behavior of node does not obtain influence, and the anti-fatigue performance of node is enhanced.
Technical scheme of the present invention in the reinforced concrete frame node use, reaches the effect that increases the service life.
Description of drawings
Fig. 1 is the node arrangement of reinforcement of the treated reinforced concrete frame of bean column node of the present invention place post arrangement of reinforcement;
Fig. 2 is the sectional drawing of post.
(depth of section of hc representational framework post, H are the post clear height).
Specific embodiment
Do explanation in further detail below in conjunction with the accompanying drawing and the embodiment of the invention.
The treated reinforced concrete frame of a kind of bean column node place post arrangement of reinforcement; Comprise the longitudinal stress muscle of reinforced concrete frame node place post and the processing of stirrup; The longitudinal stress muscle of post adopts FRP muscle and plain bars hybrid reinforcement; The FRP muscle is arranged in four jiaos of post, and styletable stirrup encrypted area adopts the staggered mixing of FRP muscle and reinforcing bar to be configured, and need strengthen the thickness of concrete cover of post simultaneously.
Longitudinal reinforcement and FRP muscle need guarantee certain distance in the post, should meet " concrete structure engineering service property (quality) standards of acceptance ", and distance must not be less than 50mm.
This distance is vibrated in concrete building effectively.
The FRP muscle is through base material its gummed to be pushed and move with the hand moulding through special mould by the multiply continuous fiber again, and base material mainly plays bonding and Transfer of Shear effect, mainly contains mylar, epoxy resin, polyamide etc.The base material material therefor should be selected according to used FRP material category.
Said post encrypted area stirrup adopts FRP and plain bars mixing to join hoop, and stirrup spacing is definite according to code requirement and experience, should be less than the stirrup spacing of only pressing the reinforcing bar configuration.
The specific embodiment of the reinforced concrete frame that a kind of bean column node place post arrangement of reinforcement is treated is: the first step, make FRP muscle 1 and stirrup 3.The multiply continuous fiber pushes its gummed through base material again and moves with the hand moulding through special mould, in this process, need carry out special surfacing, twines areal deformations such as forming screw thread like impression, scab, fiber; In second step, accomplish the layout of vertical FRP muscle 1 of post and plain bars 2 and the colligation of stirrup 3 and FRP stirrup 4; The 3rd step, formwork and concreting.
The above is merely preferred embodiments of the present invention.Protection scope of the present invention is not limited thereto, and any technician who is familiar with the present technique field is in the technical scope that the present invention discloses, and the simple change of the technical scheme that obtains or equivalence replacement all fall in protection scope of the present invention with may be obvious that.
Claims (5)
1. treated reinforced concrete frame of bean column node place post arrangement of reinforcement; It is characterized in that; The longitudinal stress muscle and the stirrup that comprise reinforced concrete frame regular node place post, the longitudinal stress muscle of post adopts FRP muscle and reinforcing bar hybrid reinforcement, and the FRP muscle is arranged in four jiaos of post; Styletable stirrup encrypted area adopts FRP muscle and staggered mixing of reinforcing bar to be configured, and need strengthen the thickness of concrete cover of post simultaneously.
2. post arrangement of reinforcement treated reinforced concrete frame in bean column node according to claim 1 place is characterized in that, the FRP muscle is it to be glued together through base material by continuous fiber more than 1 strand, again through mould extruding with move with the hand moulding.
3. post arrangement of reinforcement treated reinforced concrete frame in bean column node according to claim 1 place is characterized in that, before arrangement of reinforcement, needs the FRP muscle is carried out the surfacing of impression, scab, fiber winding formation screw thread.
4. post arrangement of reinforcement treated reinforced concrete frame in bean column node according to claim 1 place is characterized in that, said post encrypted area stirrup adopts FRP and reinforcing bar mixing to join hoop, and stirrup spacing is greater than or equal to the stirrup spacing that only disposes by reinforcing bar.
5. post arrangement of reinforcement treated reinforced concrete frame in bean column node according to claim 1 place is characterized in that, said encrypted area height L=max{hc, and H/6,500},
Wherein: the depth of section of hc representational framework post, H are the post clear height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100142855A CN102535635A (en) | 2012-01-18 | 2012-01-18 | Reinforced concrete frame with processed column reinforcements at position of beam-column joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100142855A CN102535635A (en) | 2012-01-18 | 2012-01-18 | Reinforced concrete frame with processed column reinforcements at position of beam-column joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102535635A true CN102535635A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100142855A Pending CN102535635A (en) | 2012-01-18 | 2012-01-18 | Reinforced concrete frame with processed column reinforcements at position of beam-column joint |
Country Status (1)
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| CN (1) | CN102535635A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498535A (en) * | 2013-09-29 | 2014-01-08 | 江苏法尔胜泓昇集团有限公司 | Anchoring method of flat cross section of carbon fiber composite reinforcement material |
| CN107268895A (en) * | 2017-06-28 | 2017-10-20 | 华南理工大学 | A kind of overlap welding stirrup and method for improving frame column ductility |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0430045A (en) * | 1990-05-25 | 1992-02-03 | Ohbayashi Corp | Joint part structure of pillar and beam for reinforced concrete structure |
| JP3144077B2 (en) * | 1992-08-10 | 2001-03-07 | 株式会社大林組 | How to join columns and beams |
| CN1563622A (en) * | 2004-03-15 | 2005-01-12 | 河海大学 | Structure of reinforced concrete hoped by plastic wire mesh with fiber enhanced |
| CN1936206A (en) * | 2006-10-24 | 2007-03-28 | 东南大学 | Steel-continuous-fiber composite-rib reinforced concrete earthquake-resisting structure |
-
2012
- 2012-01-18 CN CN2012100142855A patent/CN102535635A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0430045A (en) * | 1990-05-25 | 1992-02-03 | Ohbayashi Corp | Joint part structure of pillar and beam for reinforced concrete structure |
| JP3144077B2 (en) * | 1992-08-10 | 2001-03-07 | 株式会社大林組 | How to join columns and beams |
| CN1563622A (en) * | 2004-03-15 | 2005-01-12 | 河海大学 | Structure of reinforced concrete hoped by plastic wire mesh with fiber enhanced |
| CN1936206A (en) * | 2006-10-24 | 2007-03-28 | 东南大学 | Steel-continuous-fiber composite-rib reinforced concrete earthquake-resisting structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498535A (en) * | 2013-09-29 | 2014-01-08 | 江苏法尔胜泓昇集团有限公司 | Anchoring method of flat cross section of carbon fiber composite reinforcement material |
| CN103498535B (en) * | 2013-09-29 | 2016-02-17 | 江苏法尔胜泓昇集团有限公司 | Carbon fiber composite reinforcement material tabular cross section anchoring process |
| CN107268895A (en) * | 2017-06-28 | 2017-10-20 | 华南理工大学 | A kind of overlap welding stirrup and method for improving frame column ductility |
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Application publication date: 20120704 |