CN101575895A - High-durability fiber-reinforced composite reinforced concrete combined component - Google Patents
High-durability fiber-reinforced composite reinforced concrete combined component Download PDFInfo
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- CN101575895A CN101575895A CNA2009100859141A CN200910085914A CN101575895A CN 101575895 A CN101575895 A CN 101575895A CN A2009100859141 A CNA2009100859141 A CN A2009100859141A CN 200910085914 A CN200910085914 A CN 200910085914A CN 101575895 A CN101575895 A CN 101575895A
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- frp
- reinforced concrete
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- side plate
- reinforced
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 44
- 239000003733 fiber-reinforced composite Substances 0.000 title claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000004567 concrete Substances 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 210000003205 muscle Anatomy 0.000 claims description 5
- 206010039509 Scab Diseases 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 238000009415 formwork Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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Abstract
A fiber-reinforced composite reinforced concrete component for improving the durability belongs to the technical field of reinforced concrete component and is characterized in that: as for an FRP beam, as the component consists of a reinforced concrete beam and an FRP shell sealed outside the reinforced concrete, the shell consists of a soleplate, a side plate and an FRP sealing angle used for connecting the side plate and the soleplate; as for an FRP column, as the component consists of a reinforced concrete column and an FRP pipe sealed outside the reinforced concrete, the soleplate, the side plate and the FRP pipe are called an FRP formwork generally and an internal rib is provided, furthermore, the internal side is treated by adhering sands, thus increasing the compactness of the reinforced concrete and the FRP framework. The fiber-reinforced composite reinforced concrete combined component has the advantages of good durability, maintenance-free, good bearing performance, convenient construction and wide applicability.
Description
Invention field
The present invention relates to a kind of high-durability member that adopts new material and novel structure form, belong to field of new material structures, can be used for the primary structure member in the works such as bridge, building on coastal and island.
Background technology
The concrete durability problem is a difficult problem of puzzlement engineering circle always, especially the concrete durability problem that causes of corrosion of steel bar, can cause a large amount of economic losses every year, and serious also can be accidents caused, cause personnel, property injures and deaths, this problem is particularly outstanding in coastal and island building.And the measure of existing reinforcing steel bar concrete durability causes the increase of concrete component cross section, cost to improve easily, and under a lot of situation, still can not satisfy instructions for use.Adopting corrosion resistant new material---FRP (being fibre reinforced composites) is as the outer separation layer of reinforced concrete member, and forming FRP-steel concrete high-durability combined member is an economy, effective solution route.
FRP is a kind of new material of extensive use in various engineerings in recent years, is to be mixed with resin matrix by carbon fiber, the contour performance fibers of glass fiber, the nonmetals that are composited through certain processing technique.It has very strong corrosion resistance, also has advantages such as lightweight, high-strength, convenient formation simultaneously, has been applied to gradually now in the middle of the Structural Engineering, has shown good mechanical and durability performance.But all adopt the form of structure of FRP still to have some problems, understand not enoughly as joint construction complexity, with high costs, fireproof performance difference and engineering staff for FRP, cause difficulty in the design or the like.
The present invention utilizes FRP to make permanent template; the main reinforced concrete member bearing load that relies on; the FRP template is as the isolated protective layer of reinforced concrete member; and it is combination stressed with steel concrete; given full play to the advantage of two kinds of materials; obtained good effect, had broad application prospects.
Summary of the invention
The objective of the invention is to propose a kind ofly not only can save reinforcing bar and but also can improve the fiber-reinforced composite reinforced concrete combined component of durability.
One of feature of the present invention is, it is a kind of fiber-reinforced composite reinforced concrete compound beam, contain reinforced concrete beam and airtight FRP shell composition, wherein: reinforced concrete beam, inside is provided with reinforcing cage, airtight FRP shell, be enclosed in outside the described reinforced concrete beam, the FRP shell of described sealing by base plate, side plate and the envelope angle that is used to connect described base plate and side plate form, handle through scab the inboard of described base plate and side plate, so that the concrete of described side plate and base plate and inside is combined closely.
Two of feature of the present invention is that described FRP base plate and side plate are provided with interior rib.
Three of feature of the present invention is that described base plate and side plate are the FRP filled boards.
Four of feature of the present invention is, described compound beam, and what comprise upper surface can't seal close zone, and the thickness of concrete cover increases.
Five of feature of the present invention is, described compound beam, and what comprise upper surface can't seal close zone, replaces distribution reinforcement with FRP muscle material.
Six of feature of the present invention is, is a kind of fiber-reinforced composite reinforced concrete coupled column, contains: the FRP pipe of the rib of reinforced concrete post and sealing, wherein: reinforced concrete post, inside is provided with reinforcing cage; The FRP pipe of sealing is for what seal, and inside is described reinforced concrete post.
Seven of feature of the present invention is that there is the hoop rib described FRP pipe inboard.
FRP-reinforced concrete combined structure member design of the present invention is ingenious, and structure is reasonable, and easy to use, its advantage is:
(1) good endurance, non-maintaining;
(2) stress performance is better, long-term bearing capacity safety stock height.
(3) consumption of FRP is few, low price, good economy performance;
(4) very similar with traditional reinforced concrete member, correlation experience maturation, easy construction;
(5) applicability is wide, can be widely used in the various buildings on coastal and island.
Description of drawings
Fig. 1: the organigram of FRP-steel concrete high-durability beam:
1.FRP base plate; 2.FRP envelope angle; 3.FRP side plate; 4. concrete; 5. reinforcing cage; 6. distribution reinforcement; 7.FRP muscle.
Fig. 2: FRP-steel concrete high-durability coupled column organigram:
1.FRP pipe; 2. rib; 4. concrete 5. reinforcing cages.
The specific embodiment
FRP-steel concrete high-durability combined member only uses the sealing shell of a spot of FRP material as member, brings into play the advantage of its good endurance, is used for completely cutting off the erosion of outside hazardous medium to inner reinforced concrete member; Bearing of component is mainly provided by steel concrete, and the form by appropriate design FRP sheet material makes itself and concrete combination stressed, improves bearing of component, has long-term bearing capacity deposit to guarantee it; Simultaneously reduced form work engineering, reduced resource consumption and artificial in the construction stage.
The present invention is directed to outdoor structures such as the comparatively abominable bridge of working environment, trestle and designed FRP-steel concrete combination beam and column.FRP-steel concrete high-durability beam is made up of reinforced concrete beam and airtight FRP shell.Wherein the reinforced concrete beam part is identical with traditional beam, and the sealing FRP plate shell that the surface increases is made of base plate, side plate and envelope angle, and there is rib the inboard, and all the FRP plate also can increase the sandwich deadweight that alleviates.The FRP ribbed plate the construction stage as form lining, the scab by rib and inner surface is handled FRP plate and concrete is combined closely; Operational phase and reinforced concrete beam co-operation.Beam upper surface etc. can't capping the zone by increasing thickness of concrete cover or replacing upper reinforcement (as: hogging moment area) assurance high-durability with FRP muscle material.
FRP-steel concrete high-durability post adopts the FRP light-wall pipe of being with cross rib, and inside is the ordinary reinforced concrete post, and FRP light-wall pipe with ribbing adopts the fiber winding forming technology to produce.In such member, FRP has formed sealing separation layer formwork, thereby can effectively resist the corrosion function of external environment condition, and the FRP housing can improve the stress performance of member by effect of contraction simultaneously.
FRP-steel concrete high-durability member has following feature: the FRP section bar with ribbing with good durability forms the permanent formwork of sealing; The rib that has T type or L type on compound beam member FRP template inside bottom surface and the side, the co-operation of assurance steel concrete and FRP section bar; Coupled column member FRP template medial surface has cross rib, guarantees that the interface is in conjunction with tight.
The design of FRP-steel concrete high-durability member is based on the structure Life cycle, the performance of ordinary reinforced concrete member can the corrosion of invar muscle etc. endurance issues and decay very fast, need improve its performance by repeatedly maintenance is next " great-jump-forward ", guarantee in whole service life, to satisfy instructions for use; And the supporting capacity of the part of the steel concrete in the FRP-reinforced concrete member is because of the slowly decay of protection of FRP; the bearing capacity that FRP partly provides is constant substantially; thereby guaranteeing that member does not need repairing in design life also can satisfy instructions for use, has realized high-durability, non-maintaining structural element.Bearing capacity mainly partly provides by steel concrete, and FRP lost efficacy can not be stressed the time, and member still guarantees not cave in.In addition, the FRP of high-strength light has also reduced resource consumption and human cost as permanent template in construction.On long terms, FRP-steel concrete high-durability member is a kind of low cost, high efficiency form of structure in high corrosive environment.
Beam face seal FRP ribbed plate shell adopts the continuously shaped production of pultrude process, and post member FRP light-wall pipe with ribbing adopts the fiber winding forming technology to produce.Fiber mainly adopts glass fiber, if conditions permit also can adopt the fiber of other kinds, as carbon fiber etc.Beam, column template inboard with ribbing strengthens the adhesion stress between FRP template and the concrete.Carry out the scab of inner surface after template construct installs and handle, increase the adhesion stress between FRP plate and the concrete, lay reinforcing bar then, carry out concreting.
Claims (7)
1. improve the fiber-reinforced composite reinforced concrete combined component that durability is used, it is characterized in that, it is a kind of fibre reinforced composites-steel concrete compound beam, contain reinforced concrete beam and airtight FRP shell composition, wherein: reinforced concrete beam, inside is provided with reinforcing cage, airtight FRP shell, be enclosed in outside the described reinforced concrete beam, the FRP shell of described sealing is by base plate, side plate and the envelope angle composition that is used to connect described base plate and side plate, handle through scab the inboard of described base plate and side plate, so that the concrete of described side plate and base plate and inside is combined closely.
2. the FRP-reinforced concrete combined structure member that requires described raising durability to use according to right 1 is characterized in that, described base plate and side plate are provided with interior rib.
3. the FRP-reinforced concrete combined structure member that requires described raising durability to use according to right 1 is characterized in that, described base plate and side plate are the FRP filled boards.
4. the FRP-reinforced concrete combined structure member that requires described raising durability to use according to right 1 is characterized in that, described compound beam, and what comprise upper surface can't seal close zone, and the thickness of concrete cover increases.
5. the FRP-reinforced concrete combined structure member that requires described raising durability to use according to right 1 is characterized in that described compound beam, and what comprise upper surface can't seal close zone, replaces distribution reinforcement with FRP muscle material.
6. improving the FRP-reinforced concrete combined structure member that durability is used, it is characterized in that, is a kind of FRP-steel concrete coupled column, contains: the FRP pipe of the rib of reinforced concrete post and sealing, wherein: reinforced concrete post, inside is provided with reinforcing cage; The FRP light-wall pipe of sealing adopts the fiber winding forming formula, and inside is described reinforced concrete post.
7. the FRP-reinforced concrete combined structure member that requires described raising durability to use according to right 6 is characterized in that described coupled column, and there is the hoop rib FRP pipe inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100859141A CN101575895A (en) | 2009-05-27 | 2009-05-27 | High-durability fiber-reinforced composite reinforced concrete combined component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100859141A CN101575895A (en) | 2009-05-27 | 2009-05-27 | High-durability fiber-reinforced composite reinforced concrete combined component |
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| CN101575895A true CN101575895A (en) | 2009-11-11 |
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| CNA2009100859141A Pending CN101575895A (en) | 2009-05-27 | 2009-05-27 | High-durability fiber-reinforced composite reinforced concrete combined component |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787734A (en) * | 2010-02-26 | 2010-07-28 | 哈尔滨工业大学深圳研究生院 | Sea sand concrete member of admixtures and method for preparing same |
| CN102182277A (en) * | 2011-03-29 | 2011-09-14 | 河北联合大学 | Fiber reinforced precast concrete tubular column and construction method thereof |
| CN102635200A (en) * | 2012-04-25 | 2012-08-15 | 南京林业大学 | FRP (Fiberglass Reinforced Plastics), concrete and hollow original bamboo rectangular beam |
| CN103195211A (en) * | 2013-04-25 | 2013-07-10 | 湖南大学 | FRP-RC (fiber reinforced polymer-reinforced concrete) combined beam partially constrained by fiber sleeve and construction method of combined beam |
| CN103306427A (en) * | 2013-06-20 | 2013-09-18 | 南京林业大学 | Hollow original bamboo steel fiber concrete beam or column member |
| CN103321141A (en) * | 2013-07-18 | 2013-09-25 | 重庆交通大学 | Reinforced concrete cylindrical pier and construction method thereof |
| CN103924730A (en) * | 2014-04-10 | 2014-07-16 | 哈尔滨工程大学 | Permanent glass fiber reinforced polymer (GFRP) material formwork and corresponding GFRP-concrete composite beam |
| CN104805949A (en) * | 2015-04-14 | 2015-07-29 | 清华大学 | High-performance composite building block |
| CN105569266A (en) * | 2016-01-31 | 2016-05-11 | 深圳大学 | Concrete combined connecting beam |
| CN105781016A (en) * | 2016-05-06 | 2016-07-20 | 温州大学 | Cement-based composite and steel pipe combined compound column and manufacturing method thereof |
| CN109162449A (en) * | 2018-10-29 | 2019-01-08 | 黄淮学院 | A kind of protectiveness rib template for building |
-
2009
- 2009-05-27 CN CNA2009100859141A patent/CN101575895A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787734A (en) * | 2010-02-26 | 2010-07-28 | 哈尔滨工业大学深圳研究生院 | Sea sand concrete member of admixtures and method for preparing same |
| CN101787734B (en) * | 2010-02-26 | 2011-08-17 | 哈尔滨工业大学深圳研究生院 | Sea sand concrete member of admixtures and method for preparing same |
| CN102182277A (en) * | 2011-03-29 | 2011-09-14 | 河北联合大学 | Fiber reinforced precast concrete tubular column and construction method thereof |
| CN102635200A (en) * | 2012-04-25 | 2012-08-15 | 南京林业大学 | FRP (Fiberglass Reinforced Plastics), concrete and hollow original bamboo rectangular beam |
| CN103195211A (en) * | 2013-04-25 | 2013-07-10 | 湖南大学 | FRP-RC (fiber reinforced polymer-reinforced concrete) combined beam partially constrained by fiber sleeve and construction method of combined beam |
| CN103306427A (en) * | 2013-06-20 | 2013-09-18 | 南京林业大学 | Hollow original bamboo steel fiber concrete beam or column member |
| CN103321141A (en) * | 2013-07-18 | 2013-09-25 | 重庆交通大学 | Reinforced concrete cylindrical pier and construction method thereof |
| CN103321141B (en) * | 2013-07-18 | 2016-03-30 | 重庆交通大学 | A kind of Reinforced Concrete Circular Cylinder formula bridge pier and construction method thereof |
| CN103924730A (en) * | 2014-04-10 | 2014-07-16 | 哈尔滨工程大学 | Permanent glass fiber reinforced polymer (GFRP) material formwork and corresponding GFRP-concrete composite beam |
| CN103924730B (en) * | 2014-04-10 | 2016-08-17 | 哈尔滨工程大学 | GFRP material permanent formwork and corresponding GFRP-concrete combination beam thereof |
| CN104805949A (en) * | 2015-04-14 | 2015-07-29 | 清华大学 | High-performance composite building block |
| CN105569266A (en) * | 2016-01-31 | 2016-05-11 | 深圳大学 | Concrete combined connecting beam |
| CN105569266B (en) * | 2016-01-31 | 2019-09-24 | 深圳大学 | A kind of Combined concrete coupling beam |
| CN105781016A (en) * | 2016-05-06 | 2016-07-20 | 温州大学 | Cement-based composite and steel pipe combined compound column and manufacturing method thereof |
| CN109162449A (en) * | 2018-10-29 | 2019-01-08 | 黄淮学院 | A kind of protectiveness rib template for building |
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Open date: 20091111 |