CN2734819Y - Roadway continuous structure of simple-supported beam bridge with FRP composite grating - Google Patents
Roadway continuous structure of simple-supported beam bridge with FRP composite grating Download PDFInfo
- Publication number
- CN2734819Y CN2734819Y CN 200420060974 CN200420060974U CN2734819Y CN 2734819 Y CN2734819 Y CN 2734819Y CN 200420060974 CN200420060974 CN 200420060974 CN 200420060974 U CN200420060974 U CN 200420060974U CN 2734819 Y CN2734819 Y CN 2734819Y
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- China
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- continuous structure
- frp composite
- deck continuous
- composite grating
- bridge
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- Expired - Fee Related
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- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a deck continuous structure of a simple-supported beam bridge with an FRP composite grating, comprising a beam body, a deck continuous reinforced concrete structural layer and an asphalt concrete paving layer. An FRP composite grating is provided between the deck continuous reinforced concrete structural layer and the asphalt concrete paving layer; the FRP composite grating is composed of glass fiber cloth and a glass fiber grid; the glass fiber is arranged on the top end of the deck continuous reinforced concrete structural layer, whereas the glass fiber grid formed by assembling the glass fiber grid whose size is 20-40mm*20-40mm and the cross-section is 3-8mm*3-8mm according to the array is arranged on the upper surface of the glass fiber. The deck continuous structure of a simple-supported beam bridge with an FRP composite grating adopts the FRP composite grating to ameliorate the performance of the deck continuous configuration, which effectively blocks the working crack of the reinforced concrete deck continuous structural layer being emitted to the asphalt concrete paving layer; moreover, the deck continuous structure of a simple-supported beam bridge with an FRP composite grating has easy construction and can not be influenced by the season factor basically; the deck continuous structure of a simple-supported beam bridge with an FRP composite grating is a comparatively ideal amelioration scheme for the deck continuous structure.
Description
Technical field the utility model relates to a kind of bridge deck structure, particularly has the simply supported girder bridge bridge floor continuous structure of the compound grid of FRP.
Background technology simply supported girder bridge bridge floor continuous structure is meant at adjacent two places, shrinkage joint of striding between the simply supported girder bridge special stretching device is not set, but its bridge deck through thickness or segment thickness scope are connected as a single entity, make its porous simply supported girder bridge both keep the mechanical characteristic of simply supported girder bridge, again can be for vehicle provide continuous runway (or continuous runway of number Kong Yilian), make simply supported girder bridge possess superiority such as driving that continuous bridge just has is steady, comfortable.Not only simple structure, the easy construction of simply supported girder bridge bridge floor continuous structure, and cost is low, thereby use very extensive.But because simply supported girder bridge bridge floor continuous structure is generally ordinary reinforced concrete, its thickness is less (to be generally about 6 centimetres, senior general Ruo Tai exerts an influence to the bridge force-bearing system), and be in the maximum position of simply supported girder bridge distortion (compression, rotation, shearing), it is stressed very complicated, the bridge floor continuous structure after coming into operation soon, irregular cracks will appear, and develop into cracked, hole etc., hole disease gradually, and then the destruction that causes bridge deck pavement, have a strong impact on the normal use of bridge, the infringement road-ability, and may jeopardize traffic safety.
Summary of the invention is at the defective and the deficiency of prior art, and the purpose of this utility model is to provide the simply supported girder bridge bridge floor continuous structure that has the compound grid of FRP of a kind of simple in structure, easy construction, long service life.
The technical solution of the utility model is as follows: a kind of simply supported girder bridge bridge floor continuous structure that has the compound grid of FRP, comprise beam body, bridge floor continuity reinforcement(bar) concrete techonosphere and asphalt concrete pavement layer, between described bridge floor continuity reinforcement(bar) concrete techonosphere and the asphalt concrete pavement layer the compound grid of FRP is housed.The compound grid of FRP is made of glass fabric and fiberglass gridding, glass fiber is arranged in the top of bridge floor continuity reinforcement(bar) concrete techonosphere, and is that 20～40mm * 20～40mm, section are that the glass fiber grid of 3～8mm * 3～8mm is arranged on above the glass fabric by the fiberglass gridding that array combination forms by size.
Beneficial effect: the utility model adopts the compound grid of FRP to improve the continuous structural behavior of bridge floor, no matter be that the initial crack generation or the cycle-index of fatigue failure are all greater than other improvement measure, can stop the work crack of the continuous techonosphere of reinforced concrete bridge deck to be transmitted on the asphalt concrete pavement layer, and easy construction, influenced by seasonal factor little, is a kind of improvement scheme of more satisfactory bridge floor continuous structure.
Description of drawings is further described the utility model below in conjunction with accompanying drawing:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment as shown in drawings, a kind of simply supported girder bridge bridge floor continuous structure that has the compound grid of FRP, comprise beam body 1, bridge floor continuity reinforcement(bar) concrete techonosphere 2 and asphalt concrete pavement layer 3, beam body 1 links to each other with the pier cap 9 of bridge pier 8 upper ends by bearing 7, between two beam bodies 1, have shrinkage joint 10, and the top between two beam bodies 1 is connected with bridge floor continuity reinforcement(bar) concrete techonosphere 2, the compound grid 4 of the FRP that is made of glass fabric 5 and fiberglass gridding 6 is housed between described bridge floor continuity reinforcement(bar) concrete techonosphere 2 and the asphalt concrete pavement layer 3, glass fabric 5 places the top of bridge floor continuity reinforcement(bar) concrete techonosphere 2, and is 20～40mm * 20～40mm by size, section is that the glass fiber grid 11 of 3～8mm * 3～8mm is arranged on above the glass fabric 5 by the fiberglass gridding 6 that array combination forms.
The simply supported girder bridge bridge floor continuous structure of the compound grid of FRP that has of the present utility model is when construction, at first bridge floor continuity reinforcement(bar) concrete techonosphere 2 is built on the top of more solito job practices between two beam bodies 1, then at the end face sticking glass fabric 5 of bridge floor continuity reinforcement(bar) concrete techonosphere 2, thereby limit carrying out of the continuous stressed crack of distributing bar concrete, avoid it directly to asphalt concrete pavement layer 3 reflections, prolong the application life that bridge floor is constructed continuously to greatest extent; Fiberglass gridding 6 is set on glass fabric 5 again, and with the globality of asphalt concrete pavement layer 3 in enhancing subsides glass fabric 5 scopes with beam body 1, last more solito job practices is built asphalt concrete pavement layer 3.
Claims (3)
1, a kind of simply supported girder bridge bridge floor continuous structure that has the compound grid of FRP, comprise beam body (1), bridge floor continuity reinforcement(bar) concrete techonosphere (2) and asphalt concrete pavement layer (3), it is characterized in that: between described bridge floor continuity reinforcement(bar) concrete techonosphere (2) and the asphalt concrete pavement layer (3) the compound grid of FRP (4) is housed.
2, the simply supported girder bridge bridge floor continuous structure that has the compound grid of FRP according to claim 1, it is characterized in that: the compound grid of described FRP (4) is made of glass fabric (5) and fiberglass gridding (6), glass fabric (5) places the top of bridge floor continuity reinforcement(bar) concrete techonosphere (2), and fiberglass gridding (6) is arranged on above the glass fabric (5).
3, the simply supported girder bridge bridge floor continuous structure that has the compound grid of FRP according to claim 2 is characterized in that: described fiberglass gridding (6) is that 20～40mm * 20～40mm, section are that the glass fiber grid (11) of 3～8mm * 3～8mm forms by array combination by size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060974 CN2734819Y (en) | 2004-08-27 | 2004-08-27 | Roadway continuous structure of simple-supported beam bridge with FRP composite grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060974 CN2734819Y (en) | 2004-08-27 | 2004-08-27 | Roadway continuous structure of simple-supported beam bridge with FRP composite grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2734819Y true CN2734819Y (en) | 2005-10-19 |
Family
ID=35264699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420060974 Expired - Fee Related CN2734819Y (en) | 2004-08-27 | 2004-08-27 | Roadway continuous structure of simple-supported beam bridge with FRP composite grating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2734819Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781875A (en) * | 2010-03-02 | 2010-07-21 | 张锡祥 | FRP-bituminous concrete and FRP-epoxy gravel paving steel bridge deck new construction |
| CN103410089A (en) * | 2013-08-08 | 2013-11-27 | 南京工业大学 | Orthotropic steel plate-fiber grating reinforced concrete combined bridge deck structure |
| CN106149554A (en) * | 2016-08-22 | 2016-11-23 | 东莞理工学院 | A kind of prefabricated bridge expansion joint connecting elements, preparation method and construction method thereof |
| CN108035252A (en) * | 2017-12-01 | 2018-05-15 | 上海市政工程设计研究总院（集团）有限公司 | A kind of simply supported girder bridge panel continuous structure and its construction method |
-
2004
- 2004-08-27 CN CN 200420060974 patent/CN2734819Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781875A (en) * | 2010-03-02 | 2010-07-21 | 张锡祥 | FRP-bituminous concrete and FRP-epoxy gravel paving steel bridge deck new construction |
| CN103410089A (en) * | 2013-08-08 | 2013-11-27 | 南京工业大学 | Orthotropic steel plate-fiber grating reinforced concrete combined bridge deck structure |
| CN106149554A (en) * | 2016-08-22 | 2016-11-23 | 东莞理工学院 | A kind of prefabricated bridge expansion joint connecting elements, preparation method and construction method thereof |
| CN108035252A (en) * | 2017-12-01 | 2018-05-15 | 上海市政工程设计研究总院（集团）有限公司 | A kind of simply supported girder bridge panel continuous structure and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |