CN202181507U - Bridge floor continuous structure of simply-supported bridge - Google Patents
Bridge floor continuous structure of simply-supported bridge Download PDFInfo
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- CN202181507U CN202181507U CN2011202323911U CN201120232391U CN202181507U CN 202181507 U CN202181507 U CN 202181507U CN 2011202323911 U CN2011202323911 U CN 2011202323911U CN 201120232391 U CN201120232391 U CN 201120232391U CN 202181507 U CN202181507 U CN 202181507U
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- bridge
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- continuous structure
- freely
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Abstract
The utility model discloses a bridge floor continuous structure of a simply-supported bridge, which comprises a first pre-casting simply-supported bridge end and a second pre-casting simply-supported bridge end which are arranged in an adjacent way, wherein the top surfaces of the first pre-casting simply-supported bridge end and the second pre-casting simply-supported bridge end are provided with pre-stressed concrete sections, and gaps are reserved between the middle of the bottom surface of the pre-stressed concrete section and the first pre-casting simply-supported bridge end, as well as between the middle of the bottom surface of the pre-stressed concrete section and the second pre-casting simply-supported bridge end. The bridge floor continuous structure is convenient for construction, and adopts the pre-stressed technology so as to ensure that the upper edge and the lower edge of bridge surface continuous concrete can be pressed under the action of cars and temperature to avoid fissures, thus ensuring the durability of a bridge.
Description
Technical field
The utility model belongs to civil works building technology field, specifically relates to a kind of bridge floor continuous structure of freely-supported bridge.
Background technology
Medium and small span bridge common structure form has hollowcore slab, combined box beam and T beam, generally is behind the precast beam body of beam field, to be transported to bridge site to install, and becomes integral bridge behind construction transverse joint and the longitudinal seam.In order to improve train operation performance, reduce shrinkage joint quantity, two stride seam crossing between the beam body has structure continuously and the continuous dual mode of bridge floor.The structure continuation mode; Adopt continuous structure behind the first freely-supported, be about to Liang Tixian and place on the temporary support, permanent bearing is installed; Concrete is striden between the beam body in cast two to be made whole; And remove temporary support and make bridge become continuous structure, its shortcoming is cast-in-place continuous segment because the intensive constructional difficulties of reinforcing bar, and need carry out the system conversion.Bridge floor is continuously then after installing the simply supported beam body, only in the deck paving partial continuous.The continuous easy construction of bridge floor obtains widespread usage medium and small striding in the bridge bridge of footpath.But bridge floor is continuously at two seam crossings of striding between the beam, and under automobile and the temperature difference were expanded with heat and contract with cold effect repeatedly, exhibition was not broken off in common generation crack, causes the destruction of bridge floor asphalt pavement and influences road-ability.Rainwater also infiltrates through the crack, and the bent cap to the bottom that drips, and reduces the durability of bent cap, thereby influences the application life of whole bridge.
Summary of the invention
The utility model provides a kind of bridge floor continuous structure of freely-supported bridge, and this structure construction makes things convenient for, can guarantee that bridge floor does not ftracture continuously, thereby guaranteed the durability of bridge.
A kind of bridge floor continuous structure of freely-supported bridge; Comprise the first adjacent prefabricated simple bridge beam-ends and the second prefabricated simple bridge beam-ends; The described first prefabricated simple bridge beam-ends and the second prefabricated simple bridge beam-ends end face are provided with the prestressed concrete section, leave the gap between this middle part, prestressed concrete section bottom surface and the first prefabricated simple bridge beam-ends and the second prefabricated simple bridge beam-ends end face.
According to force analysis, beam body and the not acting in conjunction of prestressed concrete section between two simply supported beam bearings can significantly reduce two and stride the stress that the seam crossing bridge floor between the precast beam causes at automobile and temperature action continuously.
In order to reduce automobile and temperature action to the precast concrete tensile stress; In the optimized technical scheme, be respectively equipped with the flexible layer that flexible material constitutes between the described both sides, prestressed concrete section bottom surface and the first prefabricated simple bridge beam-ends and the second prefabricated simple bridge beam-ends.Preferred as further, described flexible material is rubber tile or asphaltic felt or other flexible material.
For realizing that prestressed concrete section and prefabricated freely-supported bridge and other deck paving reinforcing bars connect, guarantee overall structure, in the optimized technical scheme, described prestressed concrete section side is provided with reserved steel bar; Simultaneously, also can be provided with reserved steel bar at the described first prefabricated freely-supported bridge and the second prefabricated simple bridge top surface of the beam.
Described prestressed concrete section can adopt conventional pre-tensioning system, carries out prestressing force processing, makes it have certain anti-stress effect.
The bridge floor continuous structure of the freely-supported bridge of the utility model, prestressing technique is adopted in easy construction, can guarantee bridge floor continuous concrete upper limb and the equal pressurized of lower edge under automobile and temperature action, avoids occurring the crack, thereby has guaranteed the durability of bridge.
Description of drawings
Fig. 1 is the structural representation of bridge floor continuous structure of the freely-supported bridge of the utility model;
Fig. 2 is the processing structure sketch map of the prestressed concrete section of the utility model.
The specific embodiment
As shown in Figure 1; A kind of bridge floor continuous structure of freely-supported bridge; Comprise the first adjacent prefabricated simple bridge beam-ends 1 and the second prefabricated simple bridge beam-ends 2; The first prefabricated simple bridge beam-ends 1 and second prefabricated simple bridge beam-ends 2 end faces are provided with prestressed concrete section 3, leave the gap between this middle part, prestressed concrete section 3 bottom surfaces and the first prefabricated simple bridge beam-ends 1 and second prefabricated simple bridge beam-ends 2 end faces.
Be respectively equipped with the flexible layer 4 that flexible material constitutes between the prestressed concrete section both sides, 3 bottom surface and the first prefabricated simple bridge beam-ends 1 and the second prefabricated simple bridge beam-ends 2.Flexible material can be selected rubber tile or asphaltic felt or other flexible structure materials.
As shown in Figure 2, the preparation method of the prestressed concrete section 3 in the present embodiment is:
Prestressed reinforcing bar 6 and stretch-draw utilize ground tackle 7 to be anchored in pedestal 5 on the prestressing bed 5 of Liang Chang, install other plain bars after; Concreting bridge floor continuous structure 8; After treating that concrete arrives proper strength, loosen prestressed reinforcement 6, just accomplished the prefabricated of prestressed concrete section 3.
The implementation method of the bridge floor continuous structure of the freely-supported bridge of present embodiment is:
In Liang Chang or prefabrication prestressed concrete section; Prefabricated freely-supported bridge 9 is lifted to simple bridge bearing 12, move into place and accomplish transverse joint construction after, the beam body end face of the prestressed concrete section 3 that install is polished, polishes; And laying flexible layer 4; Lift prestressed concrete section 3 then, other deck paving concrete 10 of constructing is then built asphalt concrete pavement layer 11 at last.Prefabricated freely-supported bridge 9 is answered reserved steel bar with prestressed concrete section 3 sides, and connects with other deck paving reinforcing bars, guarantees structural integrity.
Claims (5)
1. the bridge floor continuous structure of a freely-supported bridge; Comprise the first adjacent prefabricated simple bridge beam-ends (1) and the second prefabricated simple bridge beam-ends (2); It is characterized in that; The described first prefabricated simple bridge beam-ends (1) and second prefabricated simple bridge beam-ends (2) end face are provided with prestressed concrete section (3), leave the gap between this middle part, prestressed concrete section (3) bottom surface and the first prefabricated simple bridge beam-ends (1) and second prefabricated simple bridge beam-ends (2) end face.
2. the bridge floor continuous structure of freely-supported bridge according to claim 1; It is characterized in that, be respectively equipped with the flexible layer (4) that flexible material constitutes between described prestressed concrete section (3) both sides, bottom surface and the first prefabricated simple bridge beam-ends (1) and the second prefabricated simple bridge beam-ends (2).
3. the bridge floor continuous structure of freely-supported bridge according to claim 2 is characterized in that, described flexible material is rubber tile or asphaltic felt.
4. the bridge floor continuous structure of freely-supported bridge according to claim 1 is characterized in that, described prestressed concrete section (3) side is provided with reserved steel bar.
5. the bridge floor continuous structure of freely-supported bridge according to claim 1 is characterized in that, the described first prefabricated freely-supported bridge and the second prefabricated simple bridge top surface of the beam are provided with reserved steel bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202323911U CN202181507U (en) | 2011-07-04 | 2011-07-04 | Bridge floor continuous structure of simply-supported bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202323911U CN202181507U (en) | 2011-07-04 | 2011-07-04 | Bridge floor continuous structure of simply-supported bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202181507U true CN202181507U (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202323911U Expired - Lifetime CN202181507U (en) | 2011-07-04 | 2011-07-04 | Bridge floor continuous structure of simply-supported bridge |
Country Status (1)
| Country | Link |
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| CN (1) | CN202181507U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762878A (en) * | 2015-04-16 | 2015-07-08 | 福州大学 | Construction method of simply supported girder bridge continuous slab-deck structure with prestress and structure of construction method |
| CN105658045A (en) * | 2013-10-23 | 2016-06-08 | 西门子有限公司 | Continuous travel track on a viaduct structure |
| CN107165047A (en) * | 2017-06-26 | 2017-09-15 | 浙江大学 | A kind of ductility bridge deck continuous plate structure |
| CN107237260A (en) * | 2017-08-11 | 2017-10-10 | 上海市城市建设设计研究总院（集团）有限公司 | Structure is longitudinally continuous using the floorings of UHPC clad cans |
-
2011
- 2011-07-04 CN CN2011202323911U patent/CN202181507U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105658045A (en) * | 2013-10-23 | 2016-06-08 | 西门子有限公司 | Continuous travel track on a viaduct structure |
| CN104762878A (en) * | 2015-04-16 | 2015-07-08 | 福州大学 | Construction method of simply supported girder bridge continuous slab-deck structure with prestress and structure of construction method |
| CN107165047A (en) * | 2017-06-26 | 2017-09-15 | 浙江大学 | A kind of ductility bridge deck continuous plate structure |
| CN107237260A (en) * | 2017-08-11 | 2017-10-10 | 上海市城市建设设计研究总院（集团）有限公司 | Structure is longitudinally continuous using the floorings of UHPC clad cans |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 89 round City West Road, Xihu District, Hangzhou, Zhejiang Patentee after: Zhejiang transportation planning and Design Research Institute Co., Ltd. Address before: No. 89 round City West Road, Xihu District, Hangzhou, Zhejiang Patentee before: Zhejiang Provincial Plan Design&Research Institute of Communications |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: No. 928, yuhangtang Road, Xihu District, Hangzhou City, Zhejiang Province 310011 Patentee after: Zhejiang shuzhijiaoyuan Technology Co.,Ltd. Address before: 310006 No. 89 West Ring Road, Hangzhou, Zhejiang, Xihu District Patentee before: ZHEJIANG PROVINCIAL INSTITUTE OF COMMUNICATIONS PLANNING DESIGN & RESEARCH Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120404 |
|
| CX01 | Expiry of patent term |