CN204753341U - Assembled wave form steel web combination precast beam - Google Patents
Assembled wave form steel web combination precast beam Download PDFInfo
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- CN204753341U CN204753341U CN201520322839.7U CN201520322839U CN204753341U CN 204753341 U CN204753341 U CN 204753341U CN 201520322839 U CN201520322839 U CN 201520322839U CN 204753341 U CN204753341 U CN 204753341U
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- Prior art keywords
- stretch
- draw
- wave form
- concrete floor
- precast beam
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 44
- 239000010959 steel Substances 0.000 title claims abstract description 44
- 239000004567 concrete Substances 0.000 claims abstract description 32
- 230000002787 reinforcement Effects 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 13
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses an assembled wave form steel web combination precast beam, including wave form steel web, the concrete roof and the concrete floor that are connected with wave form steel web through upper and lower connecting piece, the transverse connection end of concrete roof and concrete floor is provided with the transverse connection reinforcing bar respectively, and vertical connecting reinforcement has been arranged in the equilibrium in concrete roof and the concrete floor, symmetry or cross arrangement once stretch -draw prestressed duct and secondary stretch -draw prestressed duct in the concrete floor wear to be equipped with a stretch -draw prestressing force steel respectively and restraint and restraint with secondary stretch -draw prestressing force steel in it. The utility model has the advantages of with internal twice stretch -draw of prestressing force steel shu gaiwei of former wave form steel web precast beam, restraint at prestressing force steel of precast beam when body elder generation stretch -draw, treat that combination back girder sets up the stretch -draw secondary prestressing force steel that finishes again and restraints, reduce wave form steel web beam and because of the shrink produced antiarch of creeping, reduced the construction degree of difficulty, simplified bridge structures, improved the performance of structure.
Description
Technical field
The utility model relates to Wavelike steel webplate compound beam, especially relates to a kind of assembling Wavelike steel webplate combination precast beam.
Background technology
In recent years, along with Wavelike steel webplate constantly bringing forth new ideas and practice on bridge engineering, assembling Wavelike steel webplate compound beam becomes a kind of important bridge construction form gradually, obtains extensive utilization.This kind of bridge design is theoretical similar to concrete-bridge, be easy to be grasped by engineer, construction method is identical with concrete assembled type of bridge, does not need special construction equipment, dead load alleviates to make to set up and facilitates, and web adopts steel work to solve concrete diagonal crack problem.Chinese patent (CN102220739B, denomination of invention " a kind of Wavelike steel webplate prestressed concrete continuous box girder and construction method ") discloses the detailed construction method of existing assembling Wavelike steel webplate compound beam.Due to precast beam used in this construction method be prefabricated in the factory time, prestress steel beam request single tension in Wavelike steel webplate precast beam body is complete, namely single tension prestressed pore passage (wearing single tension prestressed strand in it) is only set in the concrete floor of precast beam body, so under the impact of shrinkage and creep, precast beam knows from experience the larger antiarch of appearance, construction control precision and Cheng Qiaohou integrally-built service behaviour during impact erection; Wet seam is built after the erection of precast beam body, because wet seam needs the form Shi Hanzhang adopting external steel bundle, causes needing in structure to lay the ancillary facility such as externally cable steering gear and steel bundle damper, adds working procedure, affect the construction period.
Summary of the invention
The purpose of this utility model is to provide a kind of assembling Wavelike steel webplate combination precast beam improving bridge erection speed.
For achieving the above object, the utility model can take following technical proposals:
Assembling Wavelike steel webplate combination precast beam described in the utility model, comprises Wavelike steel webplate, the concrete roof be connected with described Wavelike steel webplate by upper and lower connector and concrete floor; The lateral connection end of described concrete roof and concrete floor is respectively arranged with lateral connection reinforcing bar, and in described concrete roof and concrete floor, equilibrium is furnished with longitudinal connecting reinforcement; In described concrete floor, symmetrical or once stretch-draw prestressing force duct arranged in a crossed manner and two times tensioning prestressed pore passage, be equipped with single tension prestressed strand and two times tensioning prestressed strand respectively in it.
Described upper and lower connector is the shear connector being welded on described Wavelike steel webplate upper/lower terminal.Other type of attachment can certainly be adopted.
The utility model has the advantage of and change the prestressed strand single tension in original waveform steel web precast beam body into twice stretch-draw, i.e. symmetrical in concrete floor or once stretch-draw prestressing force duct arranged in a crossed manner and two times tensioning prestressed pore passage, single tension prestressed strand and two times tensioning prestressed strand is equipped with respectively in it, like this can when prefabricated Wavelike steel webplate beam beam body pretensioning prestressed strand, main beam supporting after to be combined is complete, stretch-draw secondary prestressing with bond steel bundle again after wet seam cast, decrease the antiarch that prefabricated Wavelike steel webplate beam produces because of shrinkage and creep, reduce difficulty of construction, simultaneously without the need to adopting the form Shi Hanzhang of external steel bundle, reducing or remitting the ancillary facilities such as steering gear that external steel Shu Suoxu arranges and the damping of steel bundle, having simplified bridge construction, can reduce costs and shorten the construction period, improve the functional performance of structure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, assembling Wavelike steel webplate combination precast beam described in the utility model, comprises Wavelike steel webplate 1, the concrete roof 2 be connected with Wavelike steel webplate by the shear connector 8 being welded on Wavelike steel webplate 1 upper/lower terminal and concrete floor 3; The lateral connection end of concrete roof 2 and concrete floor 3 is respectively arranged with lateral connection reinforcing bar 4, and in concrete roof 2 and concrete floor 3, equilibrium is furnished with longitudinal connecting reinforcement 5; In concrete floor 3, symmetrical or once stretch-draw prestressing force duct arranged in a crossed manner and two times tensioning prestressed pore passage, be equipped with single tension prestressed strand 6 and two times tensioning prestressed strand 7 respectively in it.During Specific construction, single tension prestressed strand both can adopt pre-tensioning system technique also can adopt post stretching technique.
Claims (2)
1. an assembling Wavelike steel webplate combination precast beam, comprises Wavelike steel webplate (1), the concrete roof be connected with described Wavelike steel webplate by upper and lower connector (2) and concrete floor (3); The lateral connection end of described concrete roof (2) and concrete floor (3) is respectively arranged with lateral connection reinforcing bar (4), and described concrete roof (2) and concrete floor (3) interior equilibrium are furnished with longitudinal connecting reinforcement (5); It is characterized in that: symmetrical or once stretch-draw prestressing force duct arranged in a crossed manner and two times tensioning prestressed pore passage in described concrete floor (3), be equipped with single tension prestressed strand (6) and two times tensioning prestressed strand (7) respectively in it.
2. assembling Wavelike steel webplate combination precast beam according to claim 1, is characterized in that: described upper and lower connector is the shear connector (8) being welded on described Wavelike steel webplate upper/lower terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520322839.7U CN204753341U (en) | 2015-05-19 | 2015-05-19 | Assembled wave form steel web combination precast beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520322839.7U CN204753341U (en) | 2015-05-19 | 2015-05-19 | Assembled wave form steel web combination precast beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204753341U true CN204753341U (en) | 2015-11-11 |
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ID=54468067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520322839.7U Active CN204753341U (en) | 2015-05-19 | 2015-05-19 | Assembled wave form steel web combination precast beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204753341U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758856A (en) * | 2017-03-09 | 2017-05-31 | 河南省交通规划设计研究院股份有限公司 | The construction method of the pretensioned prestressing corrugated steel web plate composite box girder of precast block |
| CN106758857A (en) * | 2017-03-09 | 2017-05-31 | 河南省交通规划设计研究院股份有限公司 | The construction method of precast block formula secondary prestress Wavelike steel webplate combination beam |
-
2015
- 2015-05-19 CN CN201520322839.7U patent/CN204753341U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758856A (en) * | 2017-03-09 | 2017-05-31 | 河南省交通规划设计研究院股份有限公司 | The construction method of the pretensioned prestressing corrugated steel web plate composite box girder of precast block |
| CN106758857A (en) * | 2017-03-09 | 2017-05-31 | 河南省交通规划设计研究院股份有限公司 | The construction method of precast block formula secondary prestress Wavelike steel webplate combination beam |
| CN106758856B (en) * | 2017-03-09 | 2018-07-24 | 河南省交通规划设计研究院股份有限公司 | The construction method of the pretensioned prestressing corrugated steel web plate composite box girder of precast block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Longhai Road 27 450052 area in Henan city of Zhengzhou province No. 70 Patentee after: HENAN PROVINCIAL COMMUNICATIONS PLANNING & DESIGN INSTITUTE Co.,Ltd. Patentee after: Li Feiran Address before: Longhai Road 27 450052 area in Henan city of Zhengzhou province No. 70 Patentee before: HENAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST Co.,Ltd. Patentee before: Li Feiran |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230113 Address after: Southwest corner of the intersection of New 107 National Road and 327 National Road, Yuanyang County, Xinxiang City, Henan Province 453500 Patentee after: Henan Zhongding Zhijian Technology Co.,Ltd. Address before: 450052 No. 70 Longhai Middle Road, Erqi District, Zhengzhou City, Henan Province Patentee before: HENAN PROVINCIAL COMMUNICATIONS PLANNING & DESIGN INSTITUTE Co.,Ltd. Patentee before: Li Feiran |
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| TR01 | Transfer of patent right |