CN204060021U - The concrete beam that a kind of FRP plate is reinforced - Google Patents
The concrete beam that a kind of FRP plate is reinforced Download PDFInfo
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- CN204060021U CN204060021U CN201420466600.2U CN201420466600U CN204060021U CN 204060021 U CN204060021 U CN 204060021U CN 201420466600 U CN201420466600 U CN 201420466600U CN 204060021 U CN204060021 U CN 204060021U
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- concrete beam
- frp plate
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- polymeric layer
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Abstract
The concrete beam that the utility model provides a kind of FRP plate to reinforce.The concrete beam that FRP plate is reinforced, comprises concrete beam, has groove at the tension face of concrete beam, be provided with FRP plate and fibrous concrete polymeric layer in this groove; FRP plate is fixed in the groove of concrete beam by smearing adhesive layer in one side, and this FRP plate reinforced concrete beam of fibrous concrete polymeric layer is taken in the another side setting of FRP plate has following advantage compared with traditional reinforced concrete beam: 1, tensile strength is high.2, there is stronger corrosion resistance and durability.3, from heavy and light, easy construction.4, coefficient of thermal expansion is close with concrete.5, modulus of elasticity is little.
Description
Technical field
The utility model relates to the concrete beam that a kind of FRP plate is reinforced, and belongs to concrete structure reinforcement field, is specifically applicable to the concrete beam needing reinforcement in building structure and repair.
Background technology
Concrete structure is applied more in Practical Project, the advantages such as supporting capacity is high, good integrity, rigidity are large, fire resistance is good that it has.But, building structure in-service, due under endo acting in conjunction, its bearing capacity or using function are declined and cannot meet normal instructions for use, these building structure inevitably will in the face of reinforcing problem, and builing industry tradition reinforcement means mainly contains increasing section reinforcing method, reinforced with external steel encased, prestressing, reinforcement by sticking of sheets and change stress system reinforcing method etc.Tradition reinforcement means is adopted in a large number in engineering practice, but in some cases, some limitation existing for these methods self, makes them can not meet the demand of durability and aesthetic, or be subject to the restriction of execution conditions and cannot implement.
Summary of the invention
Utility model object: the utility model provides the concrete beam that a kind of FRP plate is reinforced, its objective is durability existing for solution reinforcing mode in the past and aesthetic poor, construct and limited to and heavy-polluted problem.
technical scheme: the utility model is achieved through the following technical solutions:
The concrete beam that FRP plate is reinforced, comprises concrete beam, it is characterized in that: have groove at the tension face of concrete beam, be provided with FRP plate (3) and fibrous concrete polymeric layer in this groove; FRP plate is fixed in the groove of concrete beam by smearing adhesive layer in one side, and the another side of FRP plate is arranged takes fibrous concrete polymeric layer.
Described adhesive layer is modified epoxy class bicomponent structural glue-line; Described FRP plate is CFRP plate, GFRP plate, BFRP plate or AFRP plate; Described fibrous concrete polymeric layer is CFRP polymeric layer, GFRP polymeric layer, BFRP polymeric layer or AFRP polymeric layer.
advantage and effect:
The concrete beam that the utility model provides a kind of FRP plate to reinforce.This FRP plate reinforced concrete beam has following advantage compared with traditional reinforced concrete beam:
1, tensile strength is high, wherein the tensile strength of CFRP material or even seven times of plain bars.
2, there is stronger corrosion resistance and durability, can be used in the environment that corrosivity is larger.
3, from heavy and light, easy construction.Can not increase too many load to original structure after reinforcing, this is highly profitable to the maintenance and reinforcement of old structure, avoids causing chain reinforcement problem.
4, coefficient of thermal expansion is close with concrete.When environment temperature changes, both can not produce large thermal stresses.
5, modulus of elasticity is little, only has its intensity of competence exertion when producing larger distortion.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is stereogram of the present utility model.
detailed description of the invention:below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, the concrete beam that the utility model provides a kind of FRP plate to reinforce, comprises concrete beam 1, has groove at the tension face of concrete beam 1, is provided with FRP plate 3 and fibrous concrete polymeric layer 4 in this groove; FRP plate 3 is fixed in the groove of concrete beam 1 by smearing adhesive layer 2 in one side, and the another side of FRP plate 3 is arranged takes fibrous concrete polymeric layer 4.
Described adhesive layer 2 is modified epoxy class bicomponent structural glue-line; Described FRP plate 3 is CFRP plate, GFRP plate, BFRP plate or AFRP plate; Described fibrous concrete polymeric layer 4 is CFRP polymeric layer, GFRP polymeric layer, BFRP polymeric layer or AFRP polymeric layer.
Below in conjunction with specific embodiment, the utility model is further elaborated, but protection domain of the present utility model not limited by specific embodiment.
Embodiment:
The concrete beam that a kind of FRP plate is as shown in Figure 1 reinforced, comprises concrete beam 1, adhesive layer 2, FRP plate 3 and fibrous concrete polymeric layer 4.
When constructing, first being slotted by actual required FRP plate width in concrete beam 1 tension side needed reinforcement surface, and with air compressor, concrete beam 1 surface debris being removed; Then acetone is used to carry out wiping FRP plate 3 one side; Subsequently that adhesive layer 2 uniform application is surperficial in FRP plate 3, then FRP plate 3 is close in the groove of concrete beam tension side, adhesive layer 2 is fully contacted with rooved face; After boning completely with concrete beam under the effect of adhesive layer 2 etc. FRP plate 3, to spray fiber concrete aggregate layer 4 in concrete beam tension side channel; After structure maintenance completes, then polished in tension side surface, make surfacing smooth.
The utility model object is in order to FRP plate reinforced concrete beam technology is promoted in China's field of reinforcement, which provide a kind of component being conducive to reinforced concrete beam, can either reinforce concrete structure, make it meet using function, simultaneously again can convenient construction, decreasing pollution.
The utility model work progress is simple, and the engineering time is shorter, and construction cost is lower, and curing period is shorter, to surrounding environment cause of reduced contamination.This utility model is applicable to the concrete beam in building structure.
Claims (2)
1. the concrete beam of a FRP plate reinforcing, comprise concrete beam (1), it is characterized in that: have groove at the tension face of concrete beam (1), in this groove, be provided with FRP plate (3) and fibrous concrete polymeric layer (4); FRP plate (3) is fixed in the groove of concrete beam (1) by smearing adhesive layer (2) in one side, and the another side of FRP plate (3) is arranged takes fibrous concrete polymeric layer (4).
2. the concrete beam of a kind of FRP plate reinforcing according to claim 1, is characterized in that: described adhesive layer (2) is modified epoxy class bicomponent structural glue-line; Described FRP plate (3) is CFRP plate, GFRP plate, BFRP plate or AFRP plate; Described fibrous concrete polymeric layer (4) is CFRP polymeric layer, GFRP polymeric layer, BFRP polymeric layer or AFRP polymeric layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201420466600.2U CN204060021U (en) | 2014-08-19 | 2014-08-19 | The concrete beam that a kind of FRP plate is reinforced |
Applications Claiming Priority (1)
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CN201420466600.2U CN204060021U (en) | 2014-08-19 | 2014-08-19 | The concrete beam that a kind of FRP plate is reinforced |
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CN204060021U true CN204060021U (en) | 2014-12-31 |
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CN201420466600.2U Expired - Fee Related CN204060021U (en) | 2014-08-19 | 2014-08-19 | The concrete beam that a kind of FRP plate is reinforced |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105586836A (en) * | 2016-02-18 | 2016-05-18 | 沈阳建筑大学 | Combined structure for compositely reinforcing T-beam |
CN108863184A (en) * | 2018-07-26 | 2018-11-23 | 辽宁省交通高等专科学校 | A kind of roughened FRP- concrete strengthening structure and preparation method and application |
CN109457991A (en) * | 2018-10-30 | 2019-03-12 | 兰州大学 | A kind of anchoring carbon fiber Strengthened With Near Surface Mounted reinforces the method and application of concrete structure |
CN111155781A (en) * | 2019-12-26 | 2020-05-15 | 武汉科技大学 | Reinforcing structure and reinforcing method for beam-column joint |
CN111305466A (en) * | 2019-11-14 | 2020-06-19 | 佛山科学技术学院 | Corrosion-resistant stainless steel concrete beam |
-
2014
- 2014-08-19 CN CN201420466600.2U patent/CN204060021U/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105586836A (en) * | 2016-02-18 | 2016-05-18 | 沈阳建筑大学 | Combined structure for compositely reinforcing T-beam |
CN108863184A (en) * | 2018-07-26 | 2018-11-23 | 辽宁省交通高等专科学校 | A kind of roughened FRP- concrete strengthening structure and preparation method and application |
CN109457991A (en) * | 2018-10-30 | 2019-03-12 | 兰州大学 | A kind of anchoring carbon fiber Strengthened With Near Surface Mounted reinforces the method and application of concrete structure |
CN109457991B (en) * | 2018-10-30 | 2021-10-08 | 兰州大学 | Method for embedding reinforced concrete structure on surface layer of anchored carbon fiber |
CN111305466A (en) * | 2019-11-14 | 2020-06-19 | 佛山科学技术学院 | Corrosion-resistant stainless steel concrete beam |
CN111155781A (en) * | 2019-12-26 | 2020-05-15 | 武汉科技大学 | Reinforcing structure and reinforcing method for beam-column joint |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20200819 |
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CF01 | Termination of patent right due to non-payment of annual fee |