CN202181507U - Bridge deck continuous structure of simply supported bridge - Google Patents
Bridge deck continuous structure of simply supported bridge Download PDFInfo
- Publication number
- 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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- Prior art keywords
- bridge
- supported
- prefabricated
- prefabricated simple
- continuous structure
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- 239000011513 prestressed concrete Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 6
- 239000004567 concrete Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000002277 temperature effect Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002180 anti-stress Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
Images
Landscapes
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The utility model discloses a bridge floor continuous structure of simple-supported bridge, including adjacent first prefabricated simple-supported bridge beam-ends and the prefabricated simple-supported bridge beam-ends of second, prefabricated simple-supported bridge beam-ends top surface of first prefabricated simple-supported bridge beam-ends and second be equipped with the prestressed concrete section, leave the clearance between this prestressed concrete section bottom surface middle part and the prefabricated simple-supported bridge beam-ends of first prefabricated simple-supported bridge beam-ends and second and hold the top surface. The utility model discloses a bridge floor continuous structure of simply supported bridge, construction convenience adopts prestressing force technique, can guarantee that the continuous concrete of bridge floor goes up reason and lower edge army's pressurized under car and temperature effect, avoids appearing the crack to the durability of bridge has been guaranteed.
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 deck 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 deck continuous structure of simply supported bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202181507U true CN202181507U (en) | 2012-04-04 |
Family
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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 deck continuous structure of simply supported bridge |
Country Status (1)
| Country | Link |
|---|---|
| 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 | ||
| 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 |
|
| CP03 | Change of name, title or address | ||
| 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. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120404 |