CN203603017U - I-shaped prestress fiber reinforced composite material composite beam - Google Patents
I-shaped prestress fiber reinforced composite material composite beam Download PDFInfo
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- CN203603017U CN203603017U CN201320661658.8U CN201320661658U CN203603017U CN 203603017 U CN203603017 U CN 203603017U CN 201320661658 U CN201320661658 U CN 201320661658U CN 203603017 U CN203603017 U CN 203603017U
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- reinforced composite
- compound beam
- fibre reinforced
- reinforcing steel
- presstressed reinforcing
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Abstract
The utility model relates to an I-shaped prestress fiber reinforced composite material composite beam. The composite beam is made of fiber reinforced composite material and is of an I-shaped structure formed by a web and flanges arranged at the upper end and the lower end of the web, a prestress rib hole duct is formed in the flange at the lower end of the web, and a prestress rib is arranged in the prestress rib hole duct in a penetrating mode. Compared with the prior art, the I-shaped prestress fiber reinforced composite material composite beam has the advantages that the construction process can be effectively quickened, the deflection of the fiber reinforced composite material composite beam is effectively controlled, cost is reduced, and economical benefits are improved.
Description
Technical field
The utility model relates to a kind of composite bridge, especially relates to a kind of I shape pre-stress fibre reinforced composite compound beam.
Background technology
Along with scientific and technical progress, the new material of excellent performance, the application of new technology are depended in the development of Engineering Structural Subjects to a great extent, and fibre reinforced composites (hereinafter to be referred as FRP) mechanical property excellence, can reuse, belong to environmental friendliness shaped material, its theory that meets sustainable development is subject to the extensive concern of engineering circles.
Fibre reinforced composites have that specific strength is high and specific modulus is high, resistance to chemical attack, feature that anti-fatigue performance is good, the bridge that uses fibre reinforced composites to make has lightweight, high, the easy-to-install advantage of intensity, at road and rail cross-line overpass bridge, downtown area overhead pedestrian crossing, has good economic benefit and social benefit in the bridge from far-off regions of having inconvenient traffic, the transformation of old bridge and the renovation of in-service bridge; Meanwhile, after the calamities such as raising earthquake, flood, aspect emergency capability and quick-reaction capability, also have very important application prospect, fibre reinforced composites have obtained paying attention to more and more widely in bridge engineering.
Also have in three kinds of fibers of aramid fiber at conventional carbon, glass, glass fiber, with price advantage, has very large potentiality in civil construction field; But the common modulus of elasticity of glass fibre reinforced composion is low, fibre reinforced composites are mainly subject to rigidity control in the application of bridge, use merely the bridge of fibre reinforced composites manufacture to be difficult to meet high-performance, requirement cheaply.Conventionally have two kinds of methods to improve the rigidity of fibre reinforced composites beam:
1, the fiber hybrid that glass fiber and modulus of elasticity are higher uses;
2, increase beam section moment of inertia.
The fiber of high elastic modulus is expensive, and the cost of production of assorted fibre reinforced composite material bridge is also very high, and economy is not good; Increase beam section size increases moment of inertia and limit by production technology, be difficult to meet structural requirement, and stock utilization is lower.
Utility model content
The purpose of this utility model is exactly to provide a kind of I shape pre-stress fibre reinforced composite compound beam in order to overcome the defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of I shape pre-stress fibre reinforced composite compound beam, this compound beam adopts fibre reinforced composites, form I-shaped structure by web and the edge of a wing that is positioned at the upper and lower two ends of web, the edge of a wing that is positioned at lower end offers presstressed reinforcing steel duct, in this presstressed reinforcing steel duct, is equipped with presstressed reinforcing steel.
Described compound beam is stuck with paste technique, RTM technique or Filament-wound Machine technological forming by pultrude process, hand.
The cross sectional shape in described presstressed reinforcing steel duct is circle, ellipse or hyperelliptic shape.
Described presstressed reinforcing steel duct is axially offered along compound beam.
Described presstressed reinforcing steel is steel strand, indented wire, fining twisted steel bar, fiber-reinforced composite material rib or bamboo cane.
Compared with prior art, the utility model proposes the fibre reinforced composites compound beam combining with prestressing technique, can effectively control amount of deflection, make full use of material, have the following advantages:
L, adopt compound beam of the present utility model prefabrication entirely, from heavy and light, lifting is convenient, has effectively accelerated construction speed.
2, by fibre reinforced composites and default in the presstressed reinforcing steel in beam, can effectively control the amount of deflection of beam, make full use of material, reduce costs, increase economic efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model beam body;
Fig. 3 is the structural representation of the utility model presstressed reinforcing steel.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment
As Figure 1-3, a kind of I shape pre-stress fibre reinforced composite compound beam, this compound beam adopts fibre reinforced composites (FRP), form I-shaped structure by web 1 and the edge of a wing 2 that is positioned at web two ends Shang Xia 1, the edge of a wing 2 that is positioned at lower end offers two presstressed reinforcing steel ducts 3 that axially arrange along compound beam, in this presstressed reinforcing steel duct 3, is equipped with presstressed reinforcing steel 4.Wherein, compound beam can pass through pultrude process, hand is stuck with paste technique, RTM technique or Filament-wound Machine technological forming, the cross sectional shape in presstressed reinforcing steel duct is circle, ellipse or hyperelliptic shape, adopt in the present embodiment circle, presstressed reinforcing steel can be steel strand, indented wire, fining twisted steel bar, fiber-reinforced composite material rib or bamboo cane.
Adopt effectively accelerating construction progress of the utility model, effectively the amount of deflection of control combination beam, reduces costs, and increases economic efficiency.FRP material in the utility model can adopt commercially available common FRP material, the FRP material that such as Yuan Shi composite material Co., Ltd, Beijing-Hongkong glass fiber reinforced plastic Co., Ltd of Beijing etc. produce.
The above-mentioned description to embodiment is can understand and apply the utility model for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the utility model is not limited to the embodiment here, and those skilled in the art are according to announcement of the present utility model, and the improvement of making for the utility model and modification all should be within protection domains of the present utility model.
Claims (5)
1. an I shape pre-stress fibre reinforced composite compound beam, this compound beam adopts fibre reinforced composites, it is characterized in that, form I-shaped structure by web and the edge of a wing that is positioned at the upper and lower two ends of web, the edge of a wing that is positioned at lower end offers presstressed reinforcing steel duct, in this presstressed reinforcing steel duct, is equipped with presstressed reinforcing steel.
2. a kind of I shape pre-stress fibre reinforced composite compound beam according to claim 1, is characterized in that, described compound beam is stuck with paste technique, RTM technique or Filament-wound Machine technological forming by pultrude process, hand.
3. a kind of I shape pre-stress fibre reinforced composite compound beam according to claim 1, is characterized in that, the cross sectional shape in described presstressed reinforcing steel duct is circle, ellipse or hyperelliptic shape.
4. a kind of I shape pre-stress fibre reinforced composite compound beam according to claim 1, is characterized in that, described presstressed reinforcing steel duct is axially offered along compound beam.
5. a kind of I shape pre-stress fibre reinforced composite compound beam according to claim 1, is characterized in that, described presstressed reinforcing steel is steel strand, indented wire, fining twisted steel bar, fiber-reinforced composite material rib or bamboo cane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661658.8U CN203603017U (en) | 2013-10-24 | 2013-10-24 | I-shaped prestress fiber reinforced composite material composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661658.8U CN203603017U (en) | 2013-10-24 | 2013-10-24 | I-shaped prestress fiber reinforced composite material composite beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603017U true CN203603017U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320661658.8U Expired - Fee Related CN203603017U (en) | 2013-10-24 | 2013-10-24 | I-shaped prestress fiber reinforced composite material composite beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203603017U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592768A (en) * | 2017-01-22 | 2017-04-26 | 北京工业大学 | FRP composite structure of built-in complex cross section profile steel |
| CN106801471A (en) * | 2017-01-22 | 2017-06-06 | 北京工业大学 | A kind of FRP composite constructions of open type complex section shaped steel |
| CN107227681A (en) * | 2017-07-05 | 2017-10-03 | 安徽省交通规划设计研究总院股份有限公司 | The I-shaped combination beam of section assembled |
| CN108360742A (en) * | 2018-04-05 | 2018-08-03 | 南京林业大学 | A kind of prestressing with bond bamboo H-beam |
| CN110409712A (en) * | 2019-07-22 | 2019-11-05 | 清华大学 | Prestressing force answers material-ultra-high performance concrete combination beam |
-
2013
- 2013-10-24 CN CN201320661658.8U patent/CN203603017U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592768A (en) * | 2017-01-22 | 2017-04-26 | 北京工业大学 | FRP composite structure of built-in complex cross section profile steel |
| CN106801471A (en) * | 2017-01-22 | 2017-06-06 | 北京工业大学 | A kind of FRP composite constructions of open type complex section shaped steel |
| CN107227681A (en) * | 2017-07-05 | 2017-10-03 | 安徽省交通规划设计研究总院股份有限公司 | The I-shaped combination beam of section assembled |
| CN108360742A (en) * | 2018-04-05 | 2018-08-03 | 南京林业大学 | A kind of prestressing with bond bamboo H-beam |
| CN110409712A (en) * | 2019-07-22 | 2019-11-05 | 清华大学 | Prestressing force answers material-ultra-high performance concrete combination beam |
| CN110409712B (en) * | 2019-07-22 | 2024-09-20 | 清华大学 | Prestressed composite material-ultra-high performance concrete composite beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140521 Termination date: 20211024 |