CN102877407A - Concrete continuous box girder of corrugated steel web for curved bridge - Google Patents
Concrete continuous box girder of corrugated steel web for curved bridge Download PDFInfo
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- CN102877407A CN102877407A CN2012104218105A CN201210421810A CN102877407A CN 102877407 A CN102877407 A CN 102877407A CN 2012104218105 A CN2012104218105 A CN 2012104218105A CN 201210421810 A CN201210421810 A CN 201210421810A CN 102877407 A CN102877407 A CN 102877407A
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Abstract
The invention discloses a concrete continuous box girder of a corrugated steel web for a curved bridge. A curved corrugated steel web concrete continuous box girder is formed by a prefabricated linear corrugated steel web concrete I-shaped beam unit (1), namely the prefabricated linear corrugated steel web concrete I-shaped beam unit (1) is erected on a pier body (9) and a capping beam (8); the I-shaped beam is regarded as a supporting point to pour top and bottom board wet joint concrete (2) and top board cantilever section flange concrete (3) to form a box girder; a curved shape of the curved bridge is subjected to transverse width adjustment fit by using a flange cantilever section, and a single-hole box girder is constructed; and the continuous box girder is formed by pouring beam concrete (4) of each hole box girder. The concrete continuous box girder provided by the invention uses factory-like prefabrication and bracket-free construction, so as to be beneficial to ensuring and accelerating a construction progress. The standard factory-like construction of the corrugated steel web prefabricating component can effectively ensure the engineering quality, and has the advantages of simple structure, good economical efficiency and the like.
Description
Technical field
The invention belongs to the bridge technology field of highway and railway, what relate generally to is a kind of curved bridge Wavelike steel webplate Concrete Continuous Box Beam.
Background technology
Curved bridge is because structure self exists the difference the most essential with straight bridge---Torsion Coupling problem, so its structure stress calculation of complex, difficulty of design and construction is larger than straight bridge, be prone to top, base plate and cracking in webs, box girder body is climbed and the bridge defect such as is moved, even also occurs the accident such as causing bridge to topple collapsing because of automobile unbalanced load.
The Wavelike steel webplate concrete box girder is as a kind of novel steel-concrete combined structure, takes full advantage of concrete anti-compression, advantage that Wavelike steel webplate shearing resistance yield strength is high, be a kind of economy, rationally, efficient form of structure.At present, Wavelike steel webplate Concrete Curved bridge all adopts cast-in-place structural, and Wavelike steel webplate is pressed curve and laid, structure stress calculates more complicated than Wavelike steel webplate concrete straight bridge, and construction needs to adopt floor stand, meets cross a river, strides existing road and need protect when logical, constructional difficulties, and cost is higher.
Summary of the invention
The objective of the invention is the deficiency for existing Wavelike steel webplate Concrete Curved bridge technology existence, a kind of curved bridge Wavelike steel webplate Concrete Continuous Box Beam is provided.It had both had Wavelike steel webplate Concrete Continuous Box Beam structural advantages, can effectively overcome again the problem that above-mentioned cast-in-place Wavelike steel webplate Concrete Curved bridge runs into, the aspect such as, economic benefit simple and direct at stress performance, stock utilization, construction, durability has significant advantage.
The present invention realizes that the technical scheme that above-mentioned purpose is taked is:
Curved bridge of the present invention consists of shaped form Wavelike steel webplate concrete box girder with the Wavelike steel webplate Concrete Continuous Box Beam by prefabricated linear Wavelike steel webplate concrete I-shaped beam element, be about to prefabricated linear Wavelike steel webplate concrete I-shaped beam element and be erected on the pier shaft and bent cap of constructing after finishing, cast top, the wet joint concrete of base plate and top board cantilever segment edge of a wing concrete form the case beam take i beam as fulcrum; The curve shape of curved bridge utilizes edge of a wing cantilever segment transverse width to regulate match, and the single hole box girder construction is finished, and the crossbeam concrete of pouring into a mould between each hole case beam forms continuous box girder.
I beam of the present invention unit adopts steel concrete to make; Or adopting prestressed concrete to make, prestressed reinforcement adopts the prefabricated or post stretching prefabricated construction of pre-tensioning system.
The present invention is provided with pier top hogging moment steel bundle or and external prestressing steel bundle in described continuous box girder.
The linear Wavelike steel webplate i beam of prefabricated straight line of the present invention unit can adopt steel concrete, also can adopt prestressed concrete, and prestressed reinforcement can adopt the prefabricated or post stretching prefabricated construction of pre-tensioning system.
The present invention adopts the prefabricated method construction curve bridge that sets up, and has following advantage than prior art:
⑴ linear Wavelike steel webplate concrete box girder is compared with shaped form Wavelike steel webplate concrete beam, and Wavelike steel webplate is pressed the straight line setting, and stressed clear and definite, the torsion resistant and bending resistant supporting capacity improves;
⑵ Wavelike steel webplate concrete I-shaped beam adopts batch production prefabricated, compares with cast-in-place shaped form Wavelike steel webplate concrete beam, need not floor stand, during cross-line, existing road is not impacted.And have the advantages such as operation is simple and direct, duration weak point, good economy performance;
⑶ the curve shape of curved bridge utilizes edge of a wing cantilever segment transverse width match;
⑷ structural key parts precast beam adopts batch production prefabricated, by the cast-in-place box girder that is connected to form, realized the construction of breaking the whole up into parts of Wavelike steel webplate prestressed concrete box girder, enlarged the range of application of prefabricated construction method, be beneficial to batch production processing, effectively guarantee construction quality, accelerated construction speed.
Description of drawings
Fig. 1 is that curved bridge of the present invention becomes combination box Liangping face arrangement diagram with prefabricated linear I-beam.
Fig. 2 is that curved bridge of the present invention becomes combined box beam facade arrangement diagram with prefabricated linear I-beam.
Fig. 3 is that curved bridge of the present invention becomes combined box beam standard section figure with prefabricated linear I-beam.
Fig. 4 is that curved bridge of the present invention becomes combined box beam i beam construction stage profile with prefabricated linear I-beam.
Fig. 5 is that the present invention builds top, base plate and edge of a wing cantilever segment coagulation with the structural representation of native suspension bracket.
Among the figure: 1, i beam unit, 2, the wet joint concrete in top, base plate, 3, edge of a wing cantilever segment concrete, 4, crossbeam concrete, 5, suspension bracket, 6, pier top hogging moment presstressed reinforcing steel, 7, external prestressing muscle, 8, bent cap, 9, pier shaft, 5-1, suspension bracket top rail, 5-2, edge of a wing cantilever segment template, 5-3, the wet joint template of top board, 5-4, the wet joint template of base plate, 5-5, suspension rod, 5-6, cushion block.
The specific embodiment
By reference to the accompanying drawings, it is as follows to provide embodiments of the invention, but the present invention does not limit to following examples.
Shown in Fig. 1-4: the described a kind of curved bridge Wavelike steel webplate Concrete Continuous Box Beam of present embodiment, consist of shaped form Wavelike steel webplate concrete box girder by prefabricated linear Wavelike steel webplate concrete I-shaped beam element 1, be that i beam unit 1 is prefabricated according to linear, can adopt steel concrete to make, also can adopt prestressed concrete to make, prestressed reinforcement can adopt known pre-tensioning system prefabricated construction or post stretching prefabricated construction.I beam unit 1 set up be installed on the construction pier shaft 9 and bent cap 8 finished.The transverse reinforcement of precast concrete top board, precast concrete base plate, precast concrete crossbeam and diaphragm that sets up adjacent two Wavelike steel webplate concrete I-shaped beam elements of installation is fixedly connected with reinforcing bar in the corresponding site concrete.Then, take precast H-beam unit 1 as fulcrum, suspension bracket 5 is set is used for pouring into a mould top board, the wet joint concrete 2 of base plate and edge of a wing concrete 3.
As shown in Figure 5: suspension bracket 5 is by suspension bracket top rail 5-1, edge of a wing cantilever segment template 5-2, the wet joint template 5-3 of top board, base plate wet joint template 5-4, suspension rod 5-5, cushion block 5-6, suspension bracket top rail 5-1 is placed in the top of i beam unit 1, between suspension bracket top rail 5-1 and i beam unit 1, be provided with cushion block 5-5, the planeness that is used for supporting top rail 5-1 and adjusts crossbeam.The wet joint concrete formwork for placing 5-3 of top board is set below the wet seam of the top board between the two adjacent i beam unit 1, the wet joint concrete formwork for placing 5-4 of base plate is set below the wet seam of base plate, edge of a wing cantilever segment concrete-pouring template 5-2 is set below the cantilever segment of the edge of a wing.Above-mentioned three class templates all are hung on the top rail 5-1 with suspension rod.
Respectively colligation top board, the wet seam reinforcing bar of base plate on the wet joint template 5-3 of top board and the wet joint template 5-4 of base plate.Then build top board, the wet joint concrete of base plate on the template, form the case beam.
Edge of a wing cantilever segment template 5-2 makes according to the shape of curved bridge flange of beam.Be made in the plane curve shape.Then colligation cantilever segment reinforcing bar on the cantilever segment template 5-2 of the edge of a wing pours into a mould the cantilever segment concrete.The single hole box girder construction is finished, and the crossbeam concrete 4 of pouring into a mould between each hole case beam forms continuous box girder.
Continuous box girder can arrange according to the stressed needs of beam pier top hogging moment steel bundle 6 or external prestressing steel bundle 7, pier top hogging moment presstressed reinforcing steel 6 is arranged in the wet joint concrete 2 of top, base plate of closed case beam, external prestressing muscle 7 is arranged in the case, from single hole case beam beam-ends to beam single hole case beam beam tail.External prestressing muscle 7 and pier top hogging moment presstressed reinforcing steel 6 need not arrange simultaneously, because pier top hogging moment presstressed reinforcing steel is lower than external prestressing muscle cost, first-selection arranges separately pier top hogging moment presstressed reinforcing steel 6, when it can't satisfy force request, can change into external prestressing muscle 7 only is set; According to the structure stress needs, external prestressing muscle 7 and pier top hogging moment presstressed reinforcing steel 7 also can arrange simultaneously.
Claims (3)
1. curved bridge Wavelike steel webplate Concrete Continuous Box Beam, it is characterized in that: consist of shaped form Wavelike steel webplate concrete box girder by prefabricated linear Wavelike steel webplate concrete I-shaped beam element (1), being about to prefabricated linear Wavelike steel webplate concrete I-shaped beam element (1) is erected on the pier shaft (9) and bent cap (8) of constructing after finishing, take i beam as fulcrum, suspension bracket (5) is set, and cast top, the wet joint concrete (2) of base plate and top board cantilever segment edge of a wing concrete (3) form the case beam; The curve shape of curved bridge utilizes edge of a wing cantilever segment transverse width to regulate match, and the single hole box girder construction is finished, and the crossbeam concrete (4) of pouring into a mould between each hole case beam forms continuous box girder.
2. curved bridge according to claim 1 Wavelike steel webplate Concrete Continuous Box Beam is characterized in that: the making of described i beam unit (1) employing steel concrete; Or adopting prestressed concrete to make, prestressed reinforcement adopts the prefabricated or post stretching prefabricated construction of pre-tensioning system.
3. curved bridge according to claim 1 Wavelike steel webplate Concrete Continuous Box Beam is characterized in that: be provided with pier top hogging moment steel bundle (6) or and external prestressing steel bundle (7) in described continuous box girder.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215886A (en) * | 2013-04-12 | 2013-07-24 | 北京交通大学 | Novel short segment steel box-concrete combined beam |
| CN103388303A (en) * | 2013-08-07 | 2013-11-13 | 河南省交通规划勘察设计院有限责任公司 | Horizontal splicing corrugated steel web plate combined box girder and construction method |
| CN103741579A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Corrugated steel web combination curve beam bridge with horizontal partition plates |
| CN105064198A (en) * | 2015-07-30 | 2015-11-18 | 苏交科集团股份有限公司 | Semi-prefabricated and assembled composite box girder with corrugated steel webs and preparation method thereof |
| CN108265632A (en) * | 2018-03-27 | 2018-07-10 | 洛阳理工学院 | Curved bridge fitting layout stracture and its distribution method based on orthogonal precast beam |
| CN109235223A (en) * | 2018-10-29 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of Novel steel-concrete composite beam bridge structure |
| CN112342934A (en) * | 2020-12-18 | 2021-02-09 | 中交三公局第三工程有限公司 | Construction method of high-stability curve bridge plate |
| CN112411343A (en) * | 2020-11-30 | 2021-02-26 | 中交路桥建设有限公司 | Mountain area ultrahigh traffic-guaranteeing curve cast-in-place box girder combined support and erection method |
| CN115094752A (en) * | 2022-07-25 | 2022-09-23 | 成都天府轨谷科技有限公司 | Linear box-shaped bridge curve rail groove structure and manufacturing method thereof |
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| CN202849924U (en) * | 2012-10-30 | 2013-04-03 | 河南省交通规划勘察设计院有限责任公司 | Corrugated steel web plate concrete continuous box girder for curved bridge |
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| JP2000017612A (en) * | 1998-06-29 | 2000-01-18 | Ps Corp | Corrugated steel plate web girder and construction of corrugated steel plate web girder bridge |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215886A (en) * | 2013-04-12 | 2013-07-24 | 北京交通大学 | Novel short segment steel box-concrete combined beam |
| CN103388303A (en) * | 2013-08-07 | 2013-11-13 | 河南省交通规划勘察设计院有限责任公司 | Horizontal splicing corrugated steel web plate combined box girder and construction method |
| CN103741579A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Corrugated steel web combination curve beam bridge with horizontal partition plates |
| CN105064198A (en) * | 2015-07-30 | 2015-11-18 | 苏交科集团股份有限公司 | Semi-prefabricated and assembled composite box girder with corrugated steel webs and preparation method thereof |
| CN108265632A (en) * | 2018-03-27 | 2018-07-10 | 洛阳理工学院 | Curved bridge fitting layout stracture and its distribution method based on orthogonal precast beam |
| CN108265632B (en) * | 2018-03-27 | 2023-12-26 | 洛阳理工学院 | Curve bridge fitting layout structure based on orthogonal precast beam plates and layout method thereof |
| CN109235223A (en) * | 2018-10-29 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of Novel steel-concrete composite beam bridge structure |
| CN112411343A (en) * | 2020-11-30 | 2021-02-26 | 中交路桥建设有限公司 | Mountain area ultrahigh traffic-guaranteeing curve cast-in-place box girder combined support and erection method |
| CN112342934A (en) * | 2020-12-18 | 2021-02-09 | 中交三公局第三工程有限公司 | Construction method of high-stability curve bridge plate |
| CN112342934B (en) * | 2020-12-18 | 2022-04-19 | 中交三公局第三工程有限公司 | Construction method of high-stability curve bridge plate |
| CN115094752A (en) * | 2022-07-25 | 2022-09-23 | 成都天府轨谷科技有限公司 | Linear box-shaped bridge curve rail groove structure and manufacturing method thereof |
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| CN102877407B (en) | 2014-09-24 |
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Address after: Longhai Road 450052 Henan city of Zhengzhou province No. 70 Patentee after: HENAN PROVINCIAL COMMUNICATIONS PLANNING & DESIGN INSTITUTE CO., LTD. Address before: Longhai Road 450052 Henan city of Zhengzhou province No. 70 Patentee before: Henan Communications Planning Surver & Designing Institute Co., Ltd. |