CN202945818U - Carbon fiber cloth reinforced reinforcement concrete square column structure - Google Patents
Carbon fiber cloth reinforced reinforcement concrete square column structure Download PDFInfo
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- CN202945818U CN202945818U CN 201220633456 CN201220633456U CN202945818U CN 202945818 U CN202945818 U CN 202945818U CN 201220633456 CN201220633456 CN 201220633456 CN 201220633456 U CN201220633456 U CN 201220633456U CN 202945818 U CN202945818 U CN 202945818U
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Abstract
The utility model relates to a carbon fiber cloth reinforced reinforcement concrete square column structure. The carbon fiber cloth reinforced reinforcement concrete square column structure is characterized in that firstly, reinforced steel angles are arranged in four corners of an original reinforcement concrete square column, connecting reinforcements are arranged on two sides of each steel angle, wherein the connecting reinforcements penetrate through the steel angles, a half of each connecting reinforcements dives into the original reinforcement concrete square column through lead holes, and the half of the connecting reinforcements is arranged in an after pouring concrete column; one or more than one longitudinal reinforcements are arranged on each side edge of the original reinforcement concrete square column along the column body direction of the original reinforcement concrete square column in a full length mode, and are horizontally fixed by using hoops in a crosswise mode; and the after pouring concrete column is formed on the periphery of the original reinforcement concrete square column in a pouring mode after templates are installed, four corners of the after pour concrete column are all poured into arc-shaped chamfers, carbon fiber cloth is wrapped up on the periphery of the after pour concrete column, and a surface protection layer is arranged outside the carbon fiber cloth. Due to the fact that a steel angle reinforcement method, a section enlargement method and a carbon fiber reinforcement method are combined and are applied in the carbon fiber cloth reinforced reinforcement concrete square column structure, and meanwhile the arc-shaped chamfers are adopted in the four corners of the after pour concrete column, problems such as damage of the carbon fiber cloth caused by stress concentration can be effectively avoided, and meanwhile good economic benefit and technical benefit are achieved.
Description
Technical field
The utility model relates to a kind of reinforced steel concrete square column structure, and particularly a kind of carbon cloth reinforced Square Reinforced Concrete rod structure, belong to building engineering field.
Background technology
Quite a few pillar is arranged because the design load standard was low or do not consider the reasons such as change of follow-up use function to be difficult to meet current use or reorganization and expansion requirement at that time in existing building, need badly and carry out maintenance and reinforcement.
The reinforcement means of at present existing more pillar, as: increasing section reinforcing method, reinforced with external steel encased, reinforcement by sticking of sheets, CFRP Sheet Strengthening Method etc.Wherein the mechanism of CFRP Sheet Strengthening Method is to be out of shape to improve its Compressive Performance by the concrete lateral expansion of operative constraint, compare with traditional Enlargement of Section or steel bonding concrete reinforcement method, there is space, the easy construction of saving, do not need on-the-spot fixation means, construction quality easily to guarantee, substantially do not increase the characteristics such as physical dimension and deadweight, good corrosion resistance, good endurance.In addition, adopt this reinforcing method, can greatly improve the application life of building, reduce reinforcement cost.
Reinforcement material commonly used comprises carbon cloth and carbon fiber board, has following advantage is arranged: (1) tensile strength is high, is 7-10 times of equal cross-section steel.(2) lightweight, density only has 1/4 of common iron.(3) good endurance, but the destruction of impedance chemical attack and adverse circumstances, climate change.(4) when convenient and quick construction, laborsaving joint, construction quality is easy to guarantee.(5) applied widely, concrete component, steel work, wooden construction all can be reinforced, and can increase substantially supporting capacity, anti-seismic performance and the endurance quality of member.
Due to above reason, carbon fiber is being used widely aspect the structural strengthening of civil engineering especially reinforced column, bridge pier gradually as novel supporting material.
Yet, also there is the following shortcoming in the Method of Carbon Fiber Reinforced used at present: (1) is the ductile fracture of resisting structure effectively, carbon fiber reinforcement member under geological process causes the brittle fracture of structure generation once damage, will have a strong impact on the anti-seismic performance of building; (2) carbon fiber can only bearing tension, can not bear pressure, if adopt merely CFRP Sheet Strengthening Method, can't effectively improve the vertical bearing capacity of structure; (3) fire resistance of carbon fiber bonded adhesives used is not good, a large amount of forfeiture adhesive strengths when temperature not yet reaches 100 ℃, thus the application of carbon cloth in Practical Project is restricted because fire-proof function is not enough.
In sum, for overcoming existing simple carbon fiber reinforcing concrete structure, the problems such as brittle fracture, the ruggedized construction anti-pressure ability is not enough, the bonded adhesives fire resistance is not good easily occurring, is badly in need of at present a kind of novel carbon fiber cloth ruggedized construction that has good ductility, good mechanical properties such as bending resistance, shearing resistance and resistance to compression, has certain fireproof performance concurrently of invention.
Summary of the invention
The purpose of this utility model is that combination utilizes the advantage of angle steel reinforced method, Enlargement of Section and CFRP Sheet Strengthening Method etc., invent a kind of supporting capacity and anti-seismic performance that can effectively increase post, there is good endurance simultaneously, construct conveniently, there is the novel carbon fiber cloth reinforced steel concrete square column structure of better economic technology benefit.
In order to realize above-mentioned technical purpose, the utility model has adopted following technical scheme:
A kind of carbon cloth reinforced Square Reinforced Concrete rod structure, it is characterized in that first in four corners of former steel concrete square column, reinforcing angle being set, two sides of angle steel all arrange the connecting reinforcement that runs through angle steel, by drawing hole, half slips into former steel concrete square column to connecting reinforcement, and half is placed in rear pouring concrete post; Along the one or more longitudinal reinforcement of the elongated layout of the every side of former steel concrete square column cylinder direction, and laterally fixing with stirrup; After installation form after build former steel concrete square column periphery the pouring concrete post, the camber chamfering is all built in four corners of rear pouring concrete post, at rear pouring concrete post periphery wrap carbon fiber cloth, and surface protecting layer is set outside carbon cloth
.
Aforesaid carbon cloth reinforced Square Reinforced Concrete rod structure, is characterized in that reinforcing angle can adopt whole body or the even spaced separate type along the elongated setting in cylinder corner, runs through connecting reinforcement and the angle steel firm welding of angle steel.
Aforesaid carbon cloth reinforced Square Reinforced Concrete rod structure, is characterized in that at equal brushing cementing agent between former steel concrete square column and rear pouring concrete post, between rear pouring concrete post and carbon cloth.
The utlity model has following characteristics and beneficial effect:
(1) after employing angle, four bights of former steel concrete square column has just reinforced, can greatly improve the load-carrying properties of former steel concrete square column, arranging of connecting reinforcement increased the cooperative bearing performance that former steel concrete post, angle have just reached rear pouring concrete post simultaneously.
(2) after, the camber chamfering is built in four bights of pouring concrete post, can effectively avoid because the stress in bight is concentrated the damage and fracture that causes carbon cloth; When the mantle surface overcoat can effectively improve the carbon cloth durability, be conducive to the attractive in appearance of pillar and decorate.
(3) Combination application angle steel reinforced method, Enlargement of Section and CFRP Sheet Strengthening Method, have complementary advantages it, when having improved former steel concrete post load-carrying properties, its anti-seismic performance, durability, refractoriness also is greatly improved.
the accompanying drawing explanation
Fig. 1 is the carbon cloth reinforced Square Reinforced Concrete rod structure of the utility model profile;
In figure: in figure: pouring concrete post, 7-carbon cloth, 8-surface protecting layer after the former steel concrete square column of 1-, 2-angle steel, 3-connecting reinforcement, 4-longitudinal reinforcement, 5-stirrup, 6-.
The specific embodiment
In the present embodiments such as the brushing technique of the cleaning on former steel concrete square column surface, the welding of reinforcing bar and colligation, carbon cloth bonded adhesives and concrete curing technology, be not repeated, emphasis is set forth the embodiment that the utility model relates to structure.
Fig. 1 is carbon cloth reinforced Square Reinforced Concrete rod structure profile; Shown in Fig. 1.A kind of carbon cloth reinforced Square Reinforced Concrete rod structure, the former steel concrete square column length of side of required reinforcing is 400mm, and length is 3000mm, and strength grade of concrete is C25, and after reinforcing, the length of side is 600mm;
First in 1 four corners of former steel concrete square column, reinforcing angle 2 is set, angle steel 2 adopts hot rolling equal angle steel, and hem width is that 100mm, thickness are 10mm;
2 two sides of angle steel all arrange the connecting reinforcement 3 that runs through angle steel, by drawing hole, half slips into former steel concrete square column 1 to connecting reinforcement 3, and half is placed in rear pouring concrete post 6, and connecting reinforcement 3 adopts HRB400 level hot rolled ribbed steel bar, bar diameter 12mm, length 60mm;
Reinforcing angle 2 employings, along the whole body of the elongated setting in cylinder corner, run through the connecting reinforcement 3 and angle steel 2 firm welding of angle steel 2.
Along the one or more longitudinal reinforcement 4 of the elongated layout of the former steel concrete square column every side of 1 cylinder direction, and laterally fixing with stirrup 5; Longitudinal reinforcement 4 adopts HRB400 level hot rolled ribbed steel bar, bar diameter 16mm, and stirrup 5 is the sealing rectangle hoop, the grade III steel muscle that is adopted as diameter 10mm is made; Connected mode between stirrup and longitudinal reinforcement is welding.
After installation form after build former steel concrete square column 1 periphery pouring concrete post 6,6 four corners of rear pouring concrete post are all watered and are built up the arc angling that diameter is 90mm, at rear pouring concrete post 6 periphery wrap carbon fiber cloth 7, and at the outer surface protecting layer 8 that arranges of carbon cloth 7
.carbon cloth 7 is selected PAN base carbon fibre cloth, thickness 2mm, and intensity rank is high-strength I level, tensile strength is 4900MPa, modulus of elasticity>=240GPa, elongation per unit length 2.0%, carbon cloth joint overlap joint meets corresponding code requirement; Surface protecting layer 8 adopts the M25 cement mortar, and thickness is 15mm.
Equal brushing cementing agent between former steel concrete square column 1 and rear pouring concrete post 6, between rear pouring concrete post 6 and carbon cloth 7.Cementing agent adopts polymer-modified cementitious materials, brushing thickness 10mm.
The construction sequence of the carbon cloth reinforced Square Reinforced Concrete rod structure of the utility model is as follows:
(1) by angle steel 2 and connecting reinforcement 3 according to the designing requirement firm welding, clear up former steel concrete square column 1 surface, the position of connecting reinforcement 3 after installing according to angle steel 2, draw hole on former steel concrete square column 1 surface, angle steel 2 is fixed in to 1 four corners of former steel concrete square column, by drawing hole, half slips into former steel concrete square column 1 to connecting reinforcement 3, and injects cementing agent in hole;
(2), along longitudinal reinforcement 4 of the former steel concrete square column 1 elongated layout in the every limit of length direction, stirrup 5 is settled in longitudinal reinforcement 4 outside welding;
(3) installation form, at former steel concrete square column 1 external coating one layer binder, build rear pouring concrete, pouring concrete post 6 after forming;
(4) until after after pouring concrete post 6 reaches some strength, after external coating one layer binder, carry out the parcel construction of carbon cloth 7;
(5) in carbon cloth 7 outside brushing cement mortar, form surface protecting layer 8, complete the construction of this carbon cloth reinforced Square Reinforced Concrete rod structure.
Claims (3)
1. a carbon cloth reinforced Square Reinforced Concrete rod structure, it is characterized in that first in four corners of former steel concrete square column, reinforcing angle being set, two sides of angle steel all arrange the connecting reinforcement that runs through angle steel, by drawing hole, half slips into former steel concrete square column to connecting reinforcement, and half is placed in rear pouring concrete post; Along the one or more longitudinal reinforcement of the elongated layout of the every side of former steel concrete square column cylinder direction, and laterally fixing with stirrup; After installation form after build former steel concrete square column periphery the pouring concrete post, the camber chamfering is all built in four corners of rear pouring concrete post, at rear pouring concrete post periphery wrap carbon fiber cloth, and surface protecting layer is set outside carbon cloth
.
2. carbon cloth reinforced Square Reinforced Concrete rod structure according to claim 1, is characterized in that reinforcing angle can adopt whole body or the even spaced separate type along the elongated setting in cylinder corner, runs through connecting reinforcement and the angle steel firm welding of angle steel.
3. carbon cloth reinforced Square Reinforced Concrete rod structure according to claim 1, is characterized in that at equal brushing cementing agent between former steel concrete square column and rear pouring concrete post, between rear pouring concrete post and carbon cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633456 CN202945818U (en) | 2012-11-26 | 2012-11-26 | Carbon fiber cloth reinforced reinforcement concrete square column structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633456 CN202945818U (en) | 2012-11-26 | 2012-11-26 | Carbon fiber cloth reinforced reinforcement concrete square column structure |
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| Publication Number | Publication Date |
|---|---|
| CN202945818U true CN202945818U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220633456 Expired - Fee Related CN202945818U (en) | 2012-11-26 | 2012-11-26 | Carbon fiber cloth reinforced reinforcement concrete square column structure |
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| CN (1) | CN202945818U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604214A (en) * | 2015-11-22 | 2016-05-25 | 云南德政建筑新材料科技有限公司 | Shock absorption and noise reduction column, beam and wall integrated construction process |
| CN106592997A (en) * | 2016-11-29 | 2017-04-26 | 桂林理工大学 | Construction method for additionally arranging cushion block outside carbon fiber cloth enhanced reinforced concrete square column |
| CN110984608A (en) * | 2019-11-07 | 2020-04-10 | 江苏大学 | Method for reinforcing wood structure column and reinforced wood structure column structure |
| CN111576910A (en) * | 2020-05-13 | 2020-08-25 | 武汉大学 | Self-locking ECC (error correction code) coating reinforced concrete column reinforcing method |
-
2012
- 2012-11-26 CN CN 201220633456 patent/CN202945818U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604214A (en) * | 2015-11-22 | 2016-05-25 | 云南德政建筑新材料科技有限公司 | Shock absorption and noise reduction column, beam and wall integrated construction process |
| CN105604214B (en) * | 2015-11-22 | 2018-01-16 | 云南德政建筑新材料科技有限公司 | Damping anti-vibration noise reducing post, beam, wall integrated construction technique |
| CN106592997A (en) * | 2016-11-29 | 2017-04-26 | 桂林理工大学 | Construction method for additionally arranging cushion block outside carbon fiber cloth enhanced reinforced concrete square column |
| CN106592997B (en) * | 2016-11-29 | 2018-11-06 | 桂林理工大学 | The carbon cloth reinforced additional cushion block construction method of reinforced concrete square columns |
| CN110984608A (en) * | 2019-11-07 | 2020-04-10 | 江苏大学 | Method for reinforcing wood structure column and reinforced wood structure column structure |
| CN111576910A (en) * | 2020-05-13 | 2020-08-25 | 武汉大学 | Self-locking ECC (error correction code) coating reinforced concrete column reinforcing method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20201126 |