CN104213504A - Rotation V-type T-structure bridge pier and construction thereof - Google Patents
Rotation V-type T-structure bridge pier and construction thereof Download PDFInfo
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- CN104213504A CN104213504A CN201410496569.1A CN201410496569A CN104213504A CN 104213504 A CN104213504 A CN 104213504A CN 201410496569 A CN201410496569 A CN 201410496569A CN 104213504 A CN104213504 A CN 104213504A
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Abstract
The invention relates to a rotation V-type T-structure bridge pier and a construction thereof. When an included angle formed between a line and an existing busy trunk line through vertical crossing is smaller, cross-hole arrangement of a bridge is more difficult. The bridge pier is constructed on one side of the existing trunk line, and comprises a pile foundation, a supporting platform, pier arms and a cover beam from bottom to top, wherein the supporting platform is divided into a lower rotary table and an upper rotary table from bottom to top; a rotary spherical hinge is arranged between the upper rotary table and the lower rotary table; during line operation skylight time, the upper rotary table and the structure rotate to a designed position by taking the rotary spherical hinge as the center, concrete on the outer side of the rotary spherical hinge is poured to form a solid stage, and the lower rotary table and the upper rotary table are fixedly connected together to complete construction. Due to the adoption of a rotation V-type T-structure scheme, the construction only needs to be performed on one side of the existing line, requirements for roads and construction sites on the other side are reduced, the conditions that houses on two sides of the existing line in an urban area are dense and are difficult to remove are facilitated, the removal cost is greatly reduced, and the construction period is guaranteed; meanwhile, due to the adoption of rotation construction, the influence on operation of the existing line is minimized.
Description
Technical field
the invention belongs to railroad bridge field of engineering technology, be specifically related to one and turn V-type T structure bridge pier and construction method thereof.
Background technology
In recent years, China's traffic base engineering construction development is swift and violent, the development with Line for Passenger Transportation being particularly the high-speed railway of representative and highway engineering high speed highway is particularly outstanding, circuit and existing busy trunk lines railway, existing busy trunk lines highway inevitably have repeatedly graded crossing, when both angles are less, the span arrangement of bridge is comparatively difficult, and general solution route has two: one to be lay comparatively large span, and one across leap existing railway; Another adopts traditional gate pier scheme.But the former can raise newly-built circuit elevation, and can be huge because of the works scale of construction, significantly increase construction investment, at two wire clamp angles, the special hour program will become and cannot realize.Gate pier becomes a kind of selection of economical rationality, and it can reduce the span of crossing over existing road and bridge greatly, and cost saving, its economic benefit clearly, is widely applied in Practical Project.
Existing gate pier is at existing railway line both sides construction gate pier, and perform bent cap above it, gate pier position, both sides all needs builder's road and place, and performing bent cap needs repeatedly Window time, to both wired Influence to operation was larger.Particularly in city, both often house was intensive in wired both sides, and road is narrow, difficulty of removing, and both sides builder's road and construction plant needed for gate pier scheme are difficult to realize, or removal expense is high, and the duration of a project cannot be guaranteed; Both wired unit of operation performs bent cap to top and often proposes rigors simultaneously, not only needs tight safeguard procedures, and Window time is coordinated also very difficult.
Summary of the invention
The object of this invention is to provide one to turn V-type T structure bridge pier and construction method thereof, under satisfied leap function needs prerequisite, save construction investment to greatest extent, reduce both wired operation interference.
The technical solution adopted in the present invention is:
To turn V-type T structure bridge pier, be pile foundation, cushion cap, pier arm and bent cap from bottom to top, it is characterized in that:
Described cushion cap is lower rotary table and top rotary table from bottom to top, rotation ball pivot is fixed with bottom top rotary table, rotate ball pivot to be placed in the rotation slot spherically caved in of lower rotary table end face setting, built concrete outside the rotation ball pivot between lower rotary table and top rotary table and formed consolidation section.
Described pier arm is provided with two, is V-shapedly arranged between bent cap and cushion cap, and the connection of the upper and lower two ends of pier arm and bent cap and cushion cap is provided with circular arc chamfering.
Described bent cap both sides hang in choosing arm, and inside, two ends is all furnished with steel strand up and down.
To turn the construction method of V-type T structure bridge pier, it is characterized in that:
Realized by following steps:
Step one: in the construction of existing railway side, scene performs pile foundation; And lower rotary table is performed above pile foundation;
Step 2: the rotation slot spherically caved in is set at lower rotary table end face, and pre-buried rotation ball pivot;
Step 3: perform top rotary table above rotation ball pivot;
Step 4: along line direction, set up bracket casting construction pier arm and bent cap, existing railway is positioned at below bent cap cantilever, along line direction, reaches after design strength, with its two ends tension steel strand until bent cap;
Step 5: at circuit operation Window time, the structure on top rotary table and top thereof is rotated, until design attitude to rotate centered by ball pivot, measure adjustment bent cap elevation, build and rotate concrete outside ball pivot, lower rotary table and top rotary table are consolidated, complete the construction of V-type T structure bridge pier.
The present invention has the following advantages:
1, adopt scheme of turning, pier arm bent cap in the construction of parallel both wired side, can save the construction period above existing railway greatly, reduces to minimum to existing railway operation interference;
2, only need in both wired side constructions, reduce the road of opposite side and the demand of construction plant, to city, both house, wired both sides was intensive, and difficult situation of removing will be very favourable, greatly save removal expense, ensured the duration;
3, eliminate the protecting canopy frame above existing railway, can building height be reduced, effectively reduce the elevation of circuit, save construction investment obvious;
4, bridge abutment integral presents V-type streamlined, and centre surrounds delta-shaped region, and structure is attractive in appearance stable, is adapted at urban construction.
V-type T structure pier scheme of turning of the present invention can not only save construction investment greatly, to the maintenance work in both wired Influence to operation and later stage when greatly reducing again construction simultaneously, and more economical rationality.
Accompanying drawing explanation
Fig. 1 is V-type T structure bridge pier elevation of turning.
Fig. 2 is V-type T structure bridge pier side view of turning.
Fig. 3 for V-type T structure bridge pier of turning turn before elevation.
Fig. 4 for V-type T structure bridge pier of turning turn after elevation.
In figure, 1-lower rotary table, 2-rotates ball pivot, 3-top rotary table, 4-existing railway, 5-pier arm, 6-bent cap, 7-steel strand.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention will be described in detail.
The one that the present invention relates to is turned V-type T structure bridge pier, is pile foundation, cushion cap, pier arm 5 and bent cap 6 from bottom to top.Cushion cap is lower rotary table 1 and top rotary table 3 from bottom to top, be fixed with bottom top rotary table 3 and rotate ball pivot 2, rotate ball pivot 2 to be placed in the rotation slot spherically caved in of lower rotary table 1 end face setting, built concrete outside the rotation ball pivot 2 between lower rotary table 1 and top rotary table 2 and formed consolidation section.Pier arm 5 is provided with two, is V-shapedly arranged between bent cap 6 and cushion cap, and the connection of pier arm about 5 two ends and bent cap 6 and cushion cap is provided with circular arc chamfering.Define the space of del between pier arm 5 and bent cap 6, Stability Analysis of Structures is attractive in appearance.Bent cap 6 both sides hang in choosing arm, and inside, two ends is all furnished with steel strand 7 up and down.
The construction method of above-mentioned V-type T structure bridge pier of turning, is realized by following steps:
Step one: in the construction of existing railway 4 side, scene performs pile foundation; And above pile foundation, perform lower rotary table 1;
Step 2: the rotation slot spherically caved in is set at lower rotary table 1 end face, and pre-buried rotation ball pivot 2;
Step 3: perform top rotary table 3 above rotation ball pivot 2;
Step 4: along line direction, or on the direction of not disturbing existing railway 4 route, set up bracket casting construction pier arm 5 and bent cap 6, existing railway is positioned at side below bent cap 6 cantilever, after bent cap 6 reaches design strength, with its two ends tension steel strand 7;
Step 5: at circuit operation Window time, the structure on top rotary table 3 and top thereof is rotated to rotate centered by ball pivot 2, until design attitude, measure adjustment bent cap elevation, build and rotate concrete outside ball pivot 2, lower rotary table 1 and top rotary table 3 are consolidated, complete the construction of V-type T structure bridge pier.
The present invention, only need in both wired side constructions owing to adopting V-type T structure scheme of turning, and reduce the road of opposite side and the demand of construction plant, to city, both house, wired both sides was intensive, and difficult situation of removing will be very favourable, greatly save removal expense, ensured the duration; Simultaneously owing to adopting rotator construction, both wired Influence to operation is dropped to minimum.
Content of the present invention is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading manual of the present invention to any equivalence that technical solution of the present invention is taked, is claim of the present invention and contains.
Claims (4)
1. to turn V-type T structure bridge pier, be pile foundation, cushion cap, pier arm (5) and bent cap (6) from bottom to top, it is characterized in that:
Described cushion cap is lower rotary table (1) and top rotary table (3) from bottom to top, top rotary table (3) bottom is fixed with rotates ball pivot (2), rotating ball pivot (2) is placed in the rotation slot spherically caved in of lower rotary table (1) end face setting, and rotation ball pivot (2) outside between lower rotary table (1) and top rotary table (3) has been built concrete and formed consolidation section.
2. V-type T structure bridge pier of turning according to claim 1, is characterized in that:
Described pier arm (5) is provided with two, is V-shapedly arranged between bent cap (6) and cushion cap, and the connection of pier arm (5) two ends and bent cap (6) and cushion cap is up and down provided with circular arc chamfering.
3. V-type T structure bridge pier of turning according to claim 2, is characterized in that:
Described bent cap (6) both sides hang in choosing arm, and inside, two ends is all furnished with steel strand (7) up and down.
4. to turn the construction method of V-type T structure bridge pier, it is characterized in that:
Realized by following steps:
Step one: in the construction of existing railway (4) side, scene performs pile foundation; And above pile foundation, perform lower rotary table (1);
Step 2: the rotation slot spherically caved in is set at lower rotary table (1) end face, and pre-buried rotation ball pivot (2);
Step 3: perform top rotary table (3) in rotation ball pivot (2) top;
Step 4: along line direction, set up bracket casting construction pier arm (5) and bent cap (6), existing railway is positioned at below bent cap (6) cantilever, along line direction, after bent cap (6) reaches design strength, with its two ends tension steel strand (7);
Step 5: at circuit operation Window time, the structure on top rotary table (3) and top thereof is rotated to rotate centered by ball pivot (2), until design attitude, measure adjustment bent cap elevation, build and rotate ball pivot (2) outside concrete, lower rotary table (1) and top rotary table (3) are consolidated, complete the construction of V-type T structure bridge pier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496569.1A CN104213504B (en) | 2014-09-25 | 2014-09-25 | Turn V-type T structure bridge pier and constructional method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410496569.1A CN104213504B (en) | 2014-09-25 | 2014-09-25 | Turn V-type T structure bridge pier and constructional method thereof |
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| CN104213504A true CN104213504A (en) | 2014-12-17 |
| CN104213504B CN104213504B (en) | 2016-06-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951577A (en) * | 2016-06-16 | 2016-09-21 | 无锡红旗船厂有限公司 | Passenger foot bridge |
| CN106758788A (en) * | 2016-12-26 | 2017-05-31 | 广东省交通规划设计研究院股份有限公司 | A kind of spandrel frame bridge pier |
| CN111691315A (en) * | 2020-06-28 | 2020-09-22 | 重庆交通大学 | Bridge pier rotating structure and construction method thereof |
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| KR20040049354A (en) * | 2002-12-03 | 2004-06-12 | 노윤근 | Prestressed preflextion H-beam and method for building a T-shaped bridge pier using the H-beam |
| CN202099746U (en) * | 2011-06-01 | 2012-01-04 | 东北林业大学 | Cable-stayed bridge flat hinge rotator construction device for horizontal rotator construction |
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| CN103541300A (en) * | 2013-09-09 | 2014-01-29 | 中铁第一勘察设计院集团有限公司 | Railway concrete continuous beam implemented based on flat-pushing method and construction method thereof |
| CN204139049U (en) * | 2014-09-25 | 2015-02-04 | 中铁第一勘察设计院集团有限公司 | One is turned V-type T structure bridge pier |
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2014
- 2014-09-25 CN CN201410496569.1A patent/CN104213504B/en active Active
Patent Citations (5)
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| KR20040049354A (en) * | 2002-12-03 | 2004-06-12 | 노윤근 | Prestressed preflextion H-beam and method for building a T-shaped bridge pier using the H-beam |
| CN202099746U (en) * | 2011-06-01 | 2012-01-04 | 东北林业大学 | Cable-stayed bridge flat hinge rotator construction device for horizontal rotator construction |
| CN202954299U (en) * | 2012-10-16 | 2013-05-29 | 上海城建市政工程（集团）有限公司 | Template support structure for large-angle V-shaped pier and No.0 block of continuous rigid framework bridge |
| CN103541300A (en) * | 2013-09-09 | 2014-01-29 | 中铁第一勘察设计院集团有限公司 | Railway concrete continuous beam implemented based on flat-pushing method and construction method thereof |
| CN204139049U (en) * | 2014-09-25 | 2015-02-04 | 中铁第一勘察设计院集团有限公司 | One is turned V-type T structure bridge pier |
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| 李虎: "洛河特大桥V型墩连续刚构转体施工技术", 《铁道建筑技术》, no. 1, 28 February 2009 (2009-02-28) * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951577A (en) * | 2016-06-16 | 2016-09-21 | 无锡红旗船厂有限公司 | Passenger foot bridge |
| CN106758788A (en) * | 2016-12-26 | 2017-05-31 | 广东省交通规划设计研究院股份有限公司 | A kind of spandrel frame bridge pier |
| CN111691315A (en) * | 2020-06-28 | 2020-09-22 | 重庆交通大学 | Bridge pier rotating structure and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN104213504B (en) | 2016-06-01 |
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