CN2511711Y - Prestressed lateral strengthened concrete beam - Google Patents
Prestressed lateral strengthened concrete beam Download PDFInfo
- Publication number
- CN2511711Y CN2511711Y CN 01272021 CN01272021U CN2511711Y CN 2511711 Y CN2511711 Y CN 2511711Y CN 01272021 CN01272021 CN 01272021 CN 01272021 U CN01272021 U CN 01272021U CN 2511711 Y CN2511711 Y CN 2511711Y
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- prestressed
- web
- lateral
- utility
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Abstract
The utility model relates to the concrete bridge field, in particular to a prestressed lateral strengthened concrete beam. The prestressed lateral strengthened concrete beam comprises a beam surface (6), a beam web A (4), a beam web B (8) and a diaphragm plate (5); is characterized in that a prestressed lateral rebar (3) covered with a supporting steel tube (2) is arranged between the beam web A (4) and the beam web B (8); the utility model has low cost but good durability, ect.
Description
Affiliated technical field
The utility model belongs to the concrete-bridge field, particularly a kind of prestressed concrete transversely strengthening beam.
Background technology
Existing span 23.8m of railway and 31.7m prestressed concrete beam, in the operation process of speed-raising at present, heavy duty, the lateral stiffness deficiency generally appears, amplitude transfinites, even when train speed is low, lateral amplitude of vibration just exceeds railway " rating bridge standard " 5～6 times with reference to limit value, directly jeopardizes the safety of train operation.
Summary of the invention
It is a kind of simple in structure, cheap that technical problem to be solved in the utility model is to provide, and good endurance also can effectively suppress the prestressed concrete transversely strengthening beam of oscillation crosswise.
The scheme that technology of the present utility model solves can realize according to following mode:
The utility model contains: web A, web B, diaphragm; Be characterized in: between described web A and web B, be provided with the transverse prestressed reinforcing steel bar that is with supporting steel pipe.
The utility model is by respectively setting up 2 transverse prestressed reinforcing steel bars in the existing diaphragm of web both sides, and the web inboard is carried out transversely strengthening by the mode that the heavy wall supporting steel pipe supports to girder construction.Lateral amplitude of vibration can significantly reduce, and its index satisfies new revision " rating bridge standard " recommended value Amax≤L
p/ 8500.In addition, the utility model also has characteristics such as cheap, good endurance.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is a left view of the present utility model;
The specific embodiment
As shown in the figure, the utility model contains: web A6, web B7, diaphragm 8; Between described web A6 and web B7, be provided with the transverse prestressed reinforcing steel bar 3 that is with supporting steel pipe 4.The utility model selects for use the smart indented bars of pricking of φ 25mm to constitute prestressed reinforcement 3, φ 90mm seamless steel pipe formation supporting steel pipe 4, and employing is outer draws the mode of inner support that girder construction is carried out transversely strengthening.In web A6 and the existing diaphragm of web B7 8 both sides boring 9, web A6 and web B7 inboard are supported by supporting steel pipe 4, the steel pipe two ends are furnished with special backing plate 5, by special reinforced stretcher prestressed reinforcement 3 is applied prestressing force, prestressed reinforcement 3 control pulling force 100KN, prestressed reinforcement 3 beam-ends are equipped with ground tackle 2 lockings, and carry out locking processing, and ground tackle 2 is by protecting steel bushing 1 protection outward.
Claims (1)
1, a kind of prestressed concrete transversely strengthening beam contains: web A (6), web B (7), diaphragm (8); It is characterized in that: between described web A (6) and web B (7), be provided with the transverse prestressed reinforcing steel bar (3) that is with supporting steel pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01272021 CN2511711Y (en) | 2001-12-07 | 2001-12-07 | Prestressed lateral strengthened concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01272021 CN2511711Y (en) | 2001-12-07 | 2001-12-07 | Prestressed lateral strengthened concrete beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2511711Y true CN2511711Y (en) | 2002-09-18 |
Family
ID=33677286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01272021 Expired - Fee Related CN2511711Y (en) | 2001-12-07 | 2001-12-07 | Prestressed lateral strengthened concrete beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2511711Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949135A (en) * | 2010-10-12 | 2011-01-19 | 郑州大学 | Transverse anchorage system outside hollow slab bridge body and construction process thereof |
| CN102191745A (en) * | 2011-04-02 | 2011-09-21 | 中国神华能源股份有限公司 | Bridge |
| CN102518042A (en) * | 2011-12-19 | 2012-06-27 | 衡水橡胶股份有限公司 | Method of constructing transverse connection prestressed tendons of T-shaped simply-supported concrete composite bridge |
| CN103276674A (en) * | 2013-06-17 | 2013-09-04 | 山西省交通科学研究院 | Method for reinforcing bridge by external transverse prestressing tendons |
| CN103290786A (en) * | 2013-05-07 | 2013-09-11 | 北京交通大学 | System and method for rapidly reinforcing railway bridge by external prestressing |
| CN106894349A (en) * | 2017-05-13 | 2017-06-27 | 林再颐 | A kind of bridge of high-mechanic intensity |
| CN109972535A (en) * | 2018-12-14 | 2019-07-05 | 中铁科学研究院有限公司 | Railway Simple T-Girders transverse prestress reinforcement means |
-
2001
- 2001-12-07 CN CN 01272021 patent/CN2511711Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949135A (en) * | 2010-10-12 | 2011-01-19 | 郑州大学 | Transverse anchorage system outside hollow slab bridge body and construction process thereof |
| CN101949135B (en) * | 2010-10-12 | 2012-07-25 | 郑州大学 | Transverse anchorage system outside hollow slab bridge body and construction process thereof |
| CN102191745A (en) * | 2011-04-02 | 2011-09-21 | 中国神华能源股份有限公司 | Bridge |
| CN102191745B (en) * | 2011-04-02 | 2013-06-12 | 中国神华能源股份有限公司 | Bridge |
| CN102518042A (en) * | 2011-12-19 | 2012-06-27 | 衡水橡胶股份有限公司 | Method of constructing transverse connection prestressed tendons of T-shaped simply-supported concrete composite bridge |
| CN103290786A (en) * | 2013-05-07 | 2013-09-11 | 北京交通大学 | System and method for rapidly reinforcing railway bridge by external prestressing |
| CN103276674A (en) * | 2013-06-17 | 2013-09-04 | 山西省交通科学研究院 | Method for reinforcing bridge by external transverse prestressing tendons |
| CN106894349A (en) * | 2017-05-13 | 2017-06-27 | 林再颐 | A kind of bridge of high-mechanic intensity |
| CN106894349B (en) * | 2017-05-13 | 2018-10-12 | 安徽省公路工程建设监理有限责任公司 | A kind of bridge of high-mechanic intensity |
| CN109972535A (en) * | 2018-12-14 | 2019-07-05 | 中铁科学研究院有限公司 | Railway Simple T-Girders transverse prestress reinforcement means |
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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 |