CN103061261A - 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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- CN103061261A CN103061261A CN2013100269028A CN201310026902A CN103061261A CN 103061261 A CN103061261 A CN 103061261A CN 2013100269028 A CN2013100269028 A CN 2013100269028A CN 201310026902 A CN201310026902 A CN 201310026902A CN 103061261 A CN103061261 A CN 103061261A
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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 the cable stayed bridge cable beam anchoring structure.
Background technology
Cable stayed bridge is a kind of bridge type more common in the bridge engineering, and cable stayed bridge comprises the parts such as basis, bridge tower, girder, suspension cable, and the anchoring between suspension cable and the 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, the anchor arm-tie is as one of major way of steel case beam cable beam anchoring, clearly mode of transfer force is arranged, anchor point is positioned at the above position of bridge floor, and it all has advantage aspect construction manufacturing, the 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 operating below the 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 are influential to the landscape effect of whole bridge.But, because 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 yet there are no report.
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 a kind of cable stayed bridge concrete girder with anchor arm-tie assembly.
Cable stayed bridge concrete girder anchor arm-tie assembly, comprise the drag-line outer tube that is formed by conduit 7 and stay pipe 4, crown cap plate 6 is established on conduit 7 tops, the 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: describedly vertically pull plate 1 and be connected the lower end of arm-tie 2 and all connecting the end face of upper flange 9, the upright anchor slab 3 of the underrun of upper flange 9 is connecting lower wing plate 10; The uniform steel beam hole that offers on the 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 to be 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.Anchor slab 3 and concrete girder 13 effective connects mainly by prestressed strand 11 provides precompression to anchor slab 3, 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; Simultaneously, lower wing plate 10 catches concrete girder, and power is distributed to concrete surface;
2. the present invention has clearly mode of transfer force, and it is made in construction, all have advantage aspect the maintenance, inclined guy cable stretching, changes rope and can finish in the bridge floor drilling;
3. unified the suspension cable of steel case beam and concrete girder and the anchorage style of girder, the integral bridge landscape effect is better.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the stereogram after Fig. 1 opens the anchoring surface concrete.
Fig. 3 is the stereogram after Fig. 1 opens 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 among the 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, the present invention is further illustrated by embodiment.
Embodiment:
Referring to Fig. 3 and Fig. 4, the cable stayed bridge concrete girder comprises the drag-line outer tube that is comprised of conduit 7 and stay pipe 4 with anchor arm-tie assembly, crown cap plate 6 is installed on conduit 7 tops, the 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 plate 1 and be connected the lower end of arm-tie 2 and all connecting the end face of upper flange 9, the upright anchor slab 3 of the 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 to be similar i iron shape structure.The uniform steel beam hole that offers on the 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, and the end face of upper flange 9 and concrete girder 13 is fitted, and fit in the bottom surface of lower wing plate 10 and concrete girder 13.Horizontal prestressed strand 11 passes the steel beam hole and is anchored in anchor slab 3 one sides on the concrete girder 13, because 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, the power part of anchor slab 3 is delivered on the 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 the concrete girder 13 uniformly, has guaranteed the cooperative bearing of anchor slab 3 with concrete girder 13.
Claims (2)
1. the cable stayed bridge concrete girder is with anchor arm-tie assembly, comprise the drag-line outer tube that is formed by conduit (7) and stay pipe (4), crown cap plate (6) is established on conduit (7) top, the 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: describedly vertically pull plate (1) and be connected the lower end of arm-tie (2) and all connecting the end face of upper flange (9), the upright anchor slab (3) of the 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. cable stayed bridge concrete girder according to claim 1 is characterized in that with anchor arm-tie assembly: the formation of described upper flange (9), anchor slab (3) and lower wing plate (10) is transversal to be 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 |
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| 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 true CN103061261A (en) | 2013-04-24 |
| CN103061261B CN103061261B (en) | 2014-10-01 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452588A (en) * | 2014-11-25 | 2015-03-25 | 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 |
| CN105133494A (en) * | 2015-08-26 | 2015-12-09 | 长安大学 | Cable-stayed bridge steel-concrete combined cable and beam anchoring structure |
| CN105586826A (en) * | 2015-11-30 | 2016-05-18 | 湖州交通规划设计院 | Connecting structure of anchorage ends of booms of concrete tied arch bridge and construction method of connecting structure |
| 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 |
| CN110747751A (en) * | 2019-11-21 | 2020-02-04 | 中铁二局集团有限公司 | Connecting device for special-shaped steel arch rib and steel box girder and mounting method thereof |
| CN111877161A (en) * | 2020-06-29 | 2020-11-03 | 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 |
| CN111877131A (en) * | 2020-06-29 | 2020-11-03 | 中铁第一勘察设计院集团有限公司 | Anchor plate for concrete beam cable-stayed bridge |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452588A (en) * | 2014-11-25 | 2015-03-25 | 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 |
| CN105133494A (en) * | 2015-08-26 | 2015-12-09 | 长安大学 | Cable-stayed bridge steel-concrete combined cable and beam anchoring structure |
| CN105586826A (en) * | 2015-11-30 | 2016-05-18 | 湖州交通规划设计院 | Connecting structure of anchorage ends of booms of concrete tied arch bridge and construction method of connecting structure |
| 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 |
| CN110747751A (en) * | 2019-11-21 | 2020-02-04 | 中铁二局集团有限公司 | Connecting device for special-shaped steel arch rib and steel box girder and mounting method thereof |
| CN111877161A (en) * | 2020-06-29 | 2020-11-03 | 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 |
| CN111877131A (en) * | 2020-06-29 | 2020-11-03 | 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 |
| 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 |
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| CN103061261B (en) | 2014-10-01 |
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