CN103061261B - Anchor pulling plate component for concrete girder of cable-stayed bridge - Google Patents
Anchor pulling plate component for concrete girder of cable-stayed bridge Download PDFInfo
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- CN103061261B CN103061261B CN201310026902.8A CN201310026902A CN103061261B CN 103061261 B CN103061261 B CN 103061261B CN 201310026902 A CN201310026902 A CN 201310026902A CN 103061261 B CN103061261 B CN 103061261B
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Abstract
The invention relates to an anchor pulling plate component for a concrete girder of a cable-stayed bridge. The anchor pulling plate component comprises an inhaul cable formed by a guide tube and a supporting tube, a top cap plate is arranged on the inhaul cable, an anchor cushion plate is connected at the lower end of the inhaul cable, a vertical inhaul plate and a transverse inhaul plate are connected on the bottom portion of the top cap plate, lower ends of the vertical inhaul plate and the transverse inhaul plate are connected with a top face of an upper wing plate, a bottom face of the upper wing plate is connected with a lower wing plate via a vertical anchor plate, steel bundle holes are uniformly reserved on the anchor plate, one side of the anchor plate is an anchoring face while the other side of the same is a shear nail face, and shear nails are uniformly distributed on the shear nail face. Transverse prestressed steel bundles on a concrete girder penetrate the steel bundle holes and are anchored on one the anchoring face of the anchor plate, upward pulling force of the anchor plate is counterbalanced by frictional force between the anchor plate and concrete. The shear nails are welded on the shear nail face of the anchor plate, so that partial shearing force from the anchor plate to the concrete can be counterbalanced. Meanwhile, the lower wing plate holds the concrete girder so as to disperse force on the surface of the concrete. The anchor pulling plate component is clear in force transmission mode and convenient to construct and maintain, and tensioning and cable exchanging of a stay cable can be completed on the bridge surface.
Description
Technical field
The invention belongs to technical field of bridge engineering, relate to cable stayed bridge cable beam anchoring structure.
Background technology
Cable stayed bridge is a kind of bridge type more common in bridge engineering, and cable stayed bridge comprises the parts such as basis, bridge tower, girder, suspension cable, and the anchoring between suspension cable and girder is an important aspect of whole bridge security.Girder common are two kinds of forms, steel case beam and concrete girder, the anchoring of steel case beam and suspension cable has the forms such as anchor arm-tie, steel anchor box, anchor tube, anchor arm-tie is as one of major way of steel case beam cable beam anchoring, there is mode of transfer force clearly, anchor point is positioned at the above position of bridge floor, and it all has advantage aspect construction manufacture, maintenance.The connected mode of concrete girder and suspension cable mostly is toothed plate type, and tooth plate is positioned at concrete girder below, the stretch-draw of suspension cable and change rope and all need to operate below to bridge floor, and difficulty of construction is higher.Hybrid beam cable stayed bridge particularly, girder is combined by concrete girder and steel case beam, and two kinds of girders adopt two kinds of different anchorage styles, and the landscape effect of whole bridge is had to impact.But, due to the cooperative bearing problem of Steel concrete, steel anchor arm-tie is used in the anchor structure of concrete girder cable-stayed bridge cable and girder and have not been reported.
Summary of the invention
Complicated for the syndeton constructing operation of above-mentioned concrete girder and suspension cable, difficulty is higher, the stretch-draw of suspension cable and change the problem of rope inconvenient operation, the invention provides anchor arm-tie assembly for a kind of cable stayed bridge concrete girder.
Anchor arm-tie assembly for cable stayed bridge concrete girder, comprise the drag-line outer tube being formed by conduit 7 and stay pipe 4, crown cap plate 6 is established on conduit 7 tops, lower end is connecting anchor plate 8, the bottom of top cap plate 6 is connecting respectively and is vertically pulling plate 1 and horizontal arm-tie 2, the lower end that vertically pulls plate 1 and horizontal arm-tie 2 extends beyond the bottom of anchor plate 8, it is characterized in that: described in vertically pull the end face that plate 1 and the lower end of horizontal arm-tie 2 are all being connected upper flange 9, the upright anchor slab 3 of underrun of upper flange 9 is connecting lower wing plate 10; The uniform steel beam hole that offers on described anchor slab 3, a side of anchor slab 3 is anchoring face, another side WELDING STUDS face is laid with WELDING STUDS 12 on the WELDING STUDS face of anchor slab 3.
The formation of described upper flange 9, anchor slab 3 and lower wing plate 10 is transversal is similar i iron shape structure.
Useful technique effect of the present invention embodies in the following areas:
1. concrete beam anchor arm-tie and concrete cooperative bearing problem have been solved.The effective connection mainly of anchor slab 3 and concrete girder 13 provides the precompression to anchor slab 3 by prestressed strand 11, the frictional force balance by anchor slab 3 and concrete girder 13 uplift force of anchor slab 3; One side of anchor slab 3 is welded with WELDING STUDS, a part of shearing of 3 pairs of concrete girders 13 of energy balance anchor slab; Meanwhile, lower wing plate 10 catches concrete girder, and power is distributed to concrete surface;
2. the present invention has mode of transfer force clearly, and it is manufactured in construction, all have advantage aspect maintenance, inclined guy cable stretching, changes rope and can go out to drill at bridge floor;
3. unified steel case beam and the suspension cable of concrete girder and the anchorage style of girder, integral bridge landscape effect is better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is that Fig. 1 opens the stereogram after anchoring surface concrete.
Fig. 3 is that Fig. 1 opens the stereogram after all concrete.
Fig. 4 is visual angle, the back side stereogram of Fig. 3.
Fig. 5 is the right view of Fig. 3.
Sequence number in upper figure: vertically pull plate 1, horizontal arm-tie 2, anchor slab 3, stay pipe 4, stiffener 5, top cap plate 6, conduit 7, anchor plate 8, upper flange 9, lower wing plate 10, prestressed strand 11, WELDING STUDS 12, concrete girder 13.
The specific embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is further illustrated.
Embodiment:
Referring to Fig. 3 and Fig. 4, cable stayed bridge concrete girder comprises the drag-line outer tube being comprised of conduit 7 and stay pipe 4 with anchor arm-tie assembly, crown cap plate 6 is installed on conduit 7 tops, lower end is connecting anchor plate 8, the bottom of top cap plate 6 is connecting respectively and is vertically pulling plate 1 and horizontal arm-tie 2, and the lower end that vertically pulls plate 1 and horizontal arm-tie 2 extends beyond the bottom of anchor plate 8.Vertically pull the end face that plate 1 and the lower end of horizontal arm-tie 2 are all being connected upper flange 9, the upright anchor slab 3 of underrun of upper flange 9 is connecting lower wing plate 10; The formation of upper flange 9, anchor slab 3 and lower wing plate 10 is transversal is similar i iron shape structure.The uniform steel beam hole that offers on anchor slab 3, a side of anchor slab 3 is anchoring face, another side WELDING STUDS face, the uniform WELDING STUDS 12 that is welded with on the WELDING STUDS face of anchor slab 3.
During use, referring to Fig. 1 and Fig. 2, upper flange 9, anchor slab 3 and lower wing plate 10 are positioned at concrete girder 13, the end face laminating of upper flange 9 and concrete girder 13, the bottom surface laminating of lower wing plate 10 and concrete girder 13.Prestressed strand 11 horizontal on concrete girder 13 is anchored in anchor slab 3 one sides through steel beam hole, due to the precompression effect that has prestressed strand 11 to produce, the frictional force balance of anchor slab 3 and concrete girder 13 uplift force of anchor slab 3,3 pairs of concrete a part of shearings of WELDING STUDS 12 energy balance anchor slabs on anchor slab 3 another sides, simultaneously, a power part for anchor slab 3 is delivered on lower wing plate 10, and lower wing plate 10 catches concrete girder 13, and power is distributed to concrete girder 13 surfaces.Thus, Suo Li is distributed on concrete girder 13 uniformly, has guaranteed the cooperative bearing of anchor slab 3 with concrete girder 13.
Claims (2)
1. anchor arm-tie assembly for cable stayed bridge concrete girder, comprise the drag-line outer tube being formed by conduit (7) and stay pipe (4), crown cap plate (6) is established on conduit (7) top, conduit (7) lower end is connecting anchor plate (8), the bottom of top cap plate (6) is connecting respectively and is vertically pulling plate (1) and horizontal arm-tie (2), vertically pull the bottom that the lower end of plate (1) and the lower end of horizontal arm-tie (2) extend beyond anchor plate (8), it is characterized in that: described in vertically pull plate (1) lower end and the lower end of horizontal arm-tie (2) be all connected the end face of upper flange (9), the upright anchor slab (3) of underrun of upper flange (9) is connecting lower wing plate (10), the upper uniform steel beam hole that offers of described anchor slab (3), a side of anchor slab (3) is anchoring face, another side WELDING STUDS face is laid with WELDING STUDS (12) on the WELDING STUDS face of anchor slab (3).
2. anchor arm-tie assembly for cable stayed bridge concrete girder according to claim 1, is characterized in that: the formation of described upper flange (9), anchor slab (3) and lower wing plate (10) is transversal is similar i iron shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310026902.8A CN103061261B (en) | 2013-01-25 | 2013-01-25 | Anchor pulling plate component for concrete girder of cable-stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310026902.8A CN103061261B (en) | 2013-01-25 | 2013-01-25 | Anchor pulling plate component for concrete girder of cable-stayed bridge |
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| CN103061261A CN103061261A (en) | 2013-04-24 |
| CN103061261B true CN103061261B (en) | 2014-10-01 |
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| CN201310026902.8A Active CN103061261B (en) | 2013-01-25 | 2013-01-25 | Anchor pulling plate component for concrete girder of cable-stayed bridge |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452588B (en) * | 2014-11-25 | 2017-01-18 | 中铁第四勘察设计院集团有限公司 | Bridge steel girder shearing pressing bearing type anchoring plate structure |
| CN105133494B (en) * | 2015-08-26 | 2017-06-20 | 长安大学 | Cable-stayed bridge steel reinforced concrete synthetic rope beam anchoring structure |
| CN105586826B (en) * | 2015-11-30 | 2017-03-29 | 湖州交通规划设计院 | A kind of Concrete Tied Arch suspension rod casts anchor and holds attachment structure and its construction method |
| CN107988907A (en) * | 2017-12-27 | 2018-05-04 | 中铁第四勘察设计院集团有限公司 | A kind of anchor of suspension cable and concrete girder |
| CN108660911A (en) * | 2018-07-13 | 2018-10-16 | 重庆大学 | A kind of steel anchor plate type cable beam anchoring structure for cable-stayed bridge concrete girder |
| CN111877131B (en) * | 2020-06-29 | 2022-01-11 | 中铁第一勘察设计院集团有限公司 | Anchor plate for concrete beam cable-stayed bridge |
| CN111877161B (en) * | 2020-06-29 | 2022-01-07 | 中铁第一勘察设计院集团有限公司 | Stay cable anchoring method for concrete beam cable-stayed bridge |
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