CN201296900Y - Temporary locking device for combined box beam seaming section of corrugated steel web plate - Google Patents
Temporary locking device for combined box beam seaming section of corrugated steel web plate Download PDFInfo
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- CN201296900Y CN201296900Y CNU2008201322958U CN200820132295U CN201296900Y CN 201296900 Y CN201296900 Y CN 201296900Y CN U2008201322958 U CNU2008201322958 U CN U2008201322958U CN 200820132295 U CN200820132295 U CN 200820132295U CN 201296900 Y CN201296900 Y CN 201296900Y
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- locking device
- steel extension
- box beam
- closure segment
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Abstract
The utility model relates to a temporary locking device for the combined box beam seaming section of a corrugated steel web plate, which mainly solves the technical problems of temporary locking and the like during the construction of the box beam seaming section. The temporary locking device comprises four pairs of steel connecting rods; each pair of steel connecting rods are connected with a box beam through embedded parts which are embedded at both ends corresponding to the box beam seaming section; and each pair of steel connecting rods are connected through outer sheathing tubes, and are arranged on one plane. Because the utility model adopts the outer sheathing tubes to connect each pair of steel connecting rods, and four pairs of steel connecting rods are directly used for temporary locking on the box beam of the seaming section, the pressure or tension caused by change of temperature and the like can be effectively born, the construction of the seaming section is ensured to be successfully carried out, in addition, the construction is convenient, and steel materials are saved.
Description
Technical field
The utility model relates to the construction technology of bridge, especially relates to the construction technology of the bridge that uses corrugated steel web plate composite box girder, is the interim locking device of a kind of combined box beam closure segment.
Background technology
At present, the prestressed concrete continuous box girder bridge of large span adopts the cantilever construction method usually.The closure segment construction is the key of whole construction in this method.At first, the enforcement of closure segment will change the static indeterminacy system after static determinacy system in the work progress is into bridge, must guarantee that when construction the transition of this system steadily carries out.Secondly, the concrete that closure segment is newly built produces contractions in hardening process, simultaneously, closes up mouthful beam with overhanging ends and will cause the semi girder termination to separate with closure segment easily with the temperature also generation contraction that descend.In addition, when variations in temperature, semi girder elongates or shortens, closure segment participates in the effect of pulling force that system is born or pressure, and the closure segment concrete of newly building does not possess enough intensity at short notice, too early stressedly will destroy that inside concrete is glued constructs, and its intensity is affected.At above-mentioned situation, bridge shortens closure segment length to reduce amount of contraction, to improve the measures such as concrete construction quality and technology as much as possible except that adopting when closure segment is constructed, usually adopt stiff skeleton to retrain locking temporarily, this locking means includes following several form of structure: (1), inside and outside rigid support longitudinally are provided with interior rigid support in top board, base plate.At top board, the backplate surface pre-embedded steel slab of maximum cantilever section case beam, with the welding of the bigger shaped steel of rigidity or bolt on pre-embedded steel slab.(2), interior or outer rigid support: above-mentioned interior rigid support or outer rigid support only are set, it is not long that this form of structure is adapted to cantilever segment length, temperature when closing up is low, have a narrow range of temperature, and singly can overcome pulling force or the pressure that variations in temperature produces with interior or outer rigid support.(3), interior or outer rigid support and the interim prestressed strand locking of stretch-draw: the pressure that produces when heating up, the pulling force that produces during with prestressed strand opposing cooling by interior or outer rigid support opposing closure segment concrete.Above-mentioned three kinds of form of structure all lock closure segment by interior (or outer) rigid support temporarily, when raising, temperature must bear the semi girder elongation and the pressure of generation, and the elongation of self and the partial prestressing that absorbs, thereby require the cross section of rigid support bigger, steel using amount is more.
Summary of the invention
The utility model mainly solves in the bridge technical problems such as the interim locking of combined box beam closure segment, provide a kind of stressed reasonable, be convenient to construct and save the interim locking device of closure segment of steel.
The interim locking device of closure segment of the present utility model is achieved through the following technical solutions: it comprises the steel extension bar, and this steel extension bar is four pairs; Every pair of steel extension bar links to each other with the case beam by the built-in fitting that is embedded in the relative two ends of case beam closure segment; Every pair of steel extension bar connects together by outer tube, and is on the same horizontal plane.
In four pairs of steel extension bars up and down relatively and the middle part that is in two pairs of steel extension bars of heteropleural be connected with hound, the middle part of two pairs of steel extension bars also is connected with hound in addition, two hounds are cross-shaped and be in the same plane, its infall is connected with buffer board.
The base plate place of above-mentioned case beam closure segment is provided with and closes up prestressed strand.
The interim locking device of closure segment of the present utility model is owing to adopt outer tube to connect every pair of steel extension bar, directly closure segment case beam is locked temporarily by four pairs of steel extension bars, variations such as Yin Wendu be can effectively bear and pressure or pulling force brought, the construction such as concrete build etc. that have guaranteed closure segment are carried out smoothly, and construction is convenient and save steel.
Description of drawings
Fig. 1 is a front schematic view of the present utility model;
Fig. 2 is A-A sectional structure schematic diagram of Fig. 1.
The specific embodiment
Referring to Fig. 1 and Fig. 2, closure segment locking device of the present utility model comprises steel extension bar 1, and this steel extension bar is four pairs, i.e. steel extension bar 11,11`, 12,12`; Every pair of steel extension bar 1 links to each other with the case beam by the built-in fitting that is embedded in the relative two ends of case beam 2 closure segments, wherein steel extension bar 11,11` link to each other with case back plate, steel extension bar 12,12` link to each other with case beam base plate, and every pair of steel extension bar 1 connects together by outer tube 3, and is on the same horizontal plane. Steel extension bar 11,11` lay respectively at the relative both sides, case back plate end of closure segment, steel extension bar 12,12` lay respectively at the both sides (shown in Figure 2) of closure segment case beam bottom end, the opposite end that will close the section of disturbing case beam by four pairs of steel extension bars locks together, to bear variations such as Yin Wendu and bring pressure or pulling force, in case closure segment separates, guarantee that the construction of closure segment such as concrete build etc. carry out smoothly.In four pairs of steel extension bars up and down relatively and the middle part that is in two pairs of steel extension bars of heteropleural be connected with hound 4, the centre that is steel extension bar 11 and steel extension bar 12` is connected with hound 4, the middle part of two pairs of steel extension bars is connected with hound 4` in addition, the centre that is steel extension bar 11` and steel extension bar 12 is connected with hound 4`, hound 4 and hound 4` are cross-shaped and be in the same plane, its infall is connected with buffer board 5, to play the firm effect to the steel extension bar.
Be provided with at the base plate place of above-mentioned case beam closure segment and close up prestressed strand 6.By closing up the pulling force that prestressed strand 6 time is produced because of cooling with opposing.
The web of above-mentioned case beam is a Wavelike steel webplate.
Adopt the box girder construction step of locking device of the present utility model as follows: earlier four pairs of steel extension bars to be welded with the built-in fitting that is embedded in case back plate or the base plate respectively, and every pair of steel extension bar is connected one by outer tube, again hound is welded on the steel extension bar.Then, install the closure segment Wavelike steel webplate, build base plate, concrete roof.Treat concrete strength reach design strength 90% after, the stretch-draw closure segment and the transverse prestress of adjacent two segment with it again, the stretch-draw base plate closes up prestressed strand then.
Claims (3)
1, the interim locking device of corrugated steel web plate composite box girder closure segment comprises steel extension bar (1), it is characterized in that: this steel extension bar is four pairs; Every pair of steel extension bar (1) links to each other with the case beam by the built-in fitting that is embedded in the relative two ends of case beam (2) closure segment; Every pair of steel extension bar (1) connects together by outer tube (3), and is on the same horizontal plane.
2, the interim locking device of combined box beam closure segment according to claim 1, it is characterized in that: in four pairs of steel extension bars up and down relatively and the middle part that is in two pairs of steel extension bars of heteropleural be connected with hound (4), the middle part of two pairs of steel extension bars is connected with hound (4`) in addition, hound (4) and hound (4`) are cross-shaped and be in the same plane, and its infall is connected with buffer board (5).
3, the interim locking device of closure segment according to claim 1 and 2 is characterized in that: the base plate place of above-mentioned case beam closure segment is provided with and closes up prestressed strand (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201322958U CN201296900Y (en) | 2008-08-20 | 2008-08-20 | Temporary locking device for combined box beam seaming section of corrugated steel web plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201322958U CN201296900Y (en) | 2008-08-20 | 2008-08-20 | Temporary locking device for combined box beam seaming section of corrugated steel web plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201296900Y true CN201296900Y (en) | 2009-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201322958U Expired - Lifetime CN201296900Y (en) | 2008-08-20 | 2008-08-20 | Temporary locking device for combined box beam seaming section of corrugated steel web plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201296900Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047234A (en) * | 2014-04-02 | 2014-09-17 | 中铁二院工程集团有限责任公司 | Self load bearing side span closure construction method for corrugated steel web plate continuous rigid frame bridge |
| CN104746434A (en) * | 2015-03-31 | 2015-07-01 | 中铁第五勘察设计院集团有限公司 | Closure segment formwork system without dismantling outer formwork |
| CN106012793A (en) * | 2016-07-07 | 2016-10-12 | 上海外经集团控股有限公司 | Positioning structure and method for corrugated steel webs |
| CN107100088A (en) * | 2017-06-27 | 2017-08-29 | 中铁第四勘察设计院集团有限公司 | The ultrashort closure segment and its construction method of rotator construction bridge |
| CN107724252A (en) * | 2017-09-15 | 2018-02-23 | 浙江申诚环境工程有限公司 | Continuous box girder hanging basket cantilever method construction and close up block |
| CN108867315A (en) * | 2018-07-11 | 2018-11-23 | 中国葛洲坝集团第二工程有限公司 | The pre-locked method of large bridge steel reinforced concrete adapter section |
| CN109505247A (en) * | 2018-11-23 | 2019-03-22 | 中交第三航务工程局有限公司 | Self-anchored suspension bridge closure segment construction technology |
| CN112523062A (en) * | 2020-12-16 | 2021-03-19 | 重庆交通大学 | Steel-concrete combined box girder viaduct structure |
| CN114922078A (en) * | 2022-05-24 | 2022-08-19 | 中铁十六局集团有限公司 | Synchronous and rapid construction method for different sections of corrugated steel web PC composite beam |
-
2008
- 2008-08-20 CN CNU2008201322958U patent/CN201296900Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047234A (en) * | 2014-04-02 | 2014-09-17 | 中铁二院工程集团有限责任公司 | Self load bearing side span closure construction method for corrugated steel web plate continuous rigid frame bridge |
| CN104047234B (en) * | 2014-04-02 | 2016-05-11 | 中铁二院工程集团有限责任公司 | Wavelike steel webplate continuous rigid frame bridge self-supporting end bay closure construction method |
| CN104746434A (en) * | 2015-03-31 | 2015-07-01 | 中铁第五勘察设计院集团有限公司 | Closure segment formwork system without dismantling outer formwork |
| CN106012793A (en) * | 2016-07-07 | 2016-10-12 | 上海外经集团控股有限公司 | Positioning structure and method for corrugated steel webs |
| CN107100088A (en) * | 2017-06-27 | 2017-08-29 | 中铁第四勘察设计院集团有限公司 | The ultrashort closure segment and its construction method of rotator construction bridge |
| CN107100088B (en) * | 2017-06-27 | 2023-02-28 | 中铁第四勘察设计院集团有限公司 | Ultrashort closure section of swivel construction bridge and construction method thereof |
| CN107724252A (en) * | 2017-09-15 | 2018-02-23 | 浙江申诚环境工程有限公司 | Continuous box girder hanging basket cantilever method construction and close up block |
| CN108867315A (en) * | 2018-07-11 | 2018-11-23 | 中国葛洲坝集团第二工程有限公司 | The pre-locked method of large bridge steel reinforced concrete adapter section |
| CN109505247A (en) * | 2018-11-23 | 2019-03-22 | 中交第三航务工程局有限公司 | Self-anchored suspension bridge closure segment construction technology |
| CN112523062A (en) * | 2020-12-16 | 2021-03-19 | 重庆交通大学 | Steel-concrete combined box girder viaduct structure |
| CN114922078A (en) * | 2022-05-24 | 2022-08-19 | 中铁十六局集团有限公司 | Synchronous and rapid construction method for different sections of corrugated steel web PC composite beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HENAN DAJIAN STEEL STRUCTURE CO., LTD. Free format text: FORMER OWNER: BEIJING JINTAI ANLIAN BRIDGE STEEL STRUCTURE TECHNOLOGY CO., LTD. Effective date: 20100612 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100027 1197, 11/F, BLOCK A, JIACHENG PLAZA, NO.18, XIAGUANGLI, EAST THIRD RING NORTH ROAD, CHAOYANG DISTRICT, BEIJING TO: 462500 GANGCHENG AVENUE (EAST SECTION), PINGDINGSHAN WUGANG CITY, HENAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100612 Address after: Gangcheng Avenue East Pingdingshan Wugang city of Henan province in 462500 Patentee after: Henan Dajian Steel Co., Ltd. Address before: 100027 Beijing city Chaoyang District East Third Ring Road No. 18 Xiaguang Jiacheng Plaza A block 11 layer 1197 Patentee before: Beijing Jintaianlian Bridge Steel Construction Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: HENAN DAJIAN BRIDGE STEEL STRUCTURE CO., LTD. Free format text: FORMER OWNER: HE'NAN DAJIAN STEEL CONSTRUCTION CO., LTD. Effective date: 20141204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 462500 PINGDINGSHAN, HENAN PROVINCE TO: 450000 ZHENGZHOU, HENAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141204 Address after: 450000, No. 10, block A, China World Trade Center center, No. 39, Huayuan Road, Henan, Zhengzhou Patentee after: HENAN DAJIAN BRIDE STEEL STRUCTURE CO., LTD. Address before: Gangcheng Avenue East Pingdingshan Wugang city of Henan province in 462500 Patentee before: Henan Dajian Steel Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090826 |