CN104264578A - Steel-concrete combining bridge of self-anchored suspension cable-cable-stayed cooperative system - Google Patents

Steel-concrete combining bridge of self-anchored suspension cable-cable-stayed cooperative system Download PDF

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Publication number
CN104264578A
CN104264578A CN201410563501.0A CN201410563501A CN104264578A CN 104264578 A CN104264578 A CN 104264578A CN 201410563501 A CN201410563501 A CN 201410563501A CN 104264578 A CN104264578 A CN 104264578A
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CN
China
Prior art keywords
girder
cable
bridge
span
steel
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Pending
Application number
CN201410563501.0A
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Chinese (zh)
Inventor
于立军
张洪海
李焱
熊军
曹景
孙东利
张一卓
赵伟
姜锋
李佶
王洪龙
白玉川
赵聚成
李松
于海
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Tianjin Municipal Engineering Design and Research Institute
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Tianjin Municipal Engineering Design and Research Institute
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Application filed by Tianjin Municipal Engineering Design and Research Institute filed Critical Tianjin Municipal Engineering Design and Research Institute
Priority to CN201410563501.0A priority Critical patent/CN104264578A/en
Publication of CN104264578A publication Critical patent/CN104264578A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D12/00Bridges characterised by a combination of structures not covered as a whole by a single one of groups E01D2/00 - E01D11/00
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/04Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/20Concrete, stone or stone-like material
    • E01D2101/24Concrete
    • E01D2101/26Concrete reinforced
    • E01D2101/268Composite concrete-metal

Abstract

The invention discloses a steel-concrete combining bridge of a self-anchored suspension cable-cable-stayed cooperative system. The steel-concrete combining bridge of the self-anchored suspension cable-cable-stayed cooperative system comprises main towers, side-span bridge piers, girders, main cables, stay cables and suspenders, the girder is supported by the main towers, side-span bridge piers, main cables and stay cables and composed of a mid-span girder at the middle and side-span girders at two sides of the mid-span girder in a connecting mode, the middle of the mid-span girder is connected with the main cable through the suspenders, the mid-span girder is a steel box girder, and the side-span girders are concrete girders. The steel-concrete combining bridge of the self-anchored suspension cable-cable-stayed cooperative system solves the problem of large axial force of a girder of a large-span self-anchored suspension cable-cable-stayed cooperative system bridge through using the steel and concrete girders for the self-anchored suspension cable-cable-stayed cooperative system bridge. Because the steel-concrete combining bridge of the self-anchored suspension cable-cable-stayed cooperative system uses the steel girder as the mid-span girder, the weight is light, the spanning ability is strong, and the construction speed is quick; the concrete girders are used as side-span girders, on the one hand, the concrete girders play roles of ballasting, and on the other hand, the concrete girders can form stable anchor spanning through combining with the side-span bridge piers.

Description

A kind of self-anchoring type suspension cable-oblique pull co-operative system steel-concrete composite bridge
Technical field
The present invention relates to a kind of bridge, particularly a kind of self-anchoring type suspension cable-oblique pull co-operative system steel-concrete composite bridge.
Background technology
Since the nearly century, the development of bridge engineering achieves huge achievement, and wherein the system of cableway platform develops and the breakthrough of span is exactly wherein one of most important achievement.So-called cableway platform, refers to using cable (main push-towing rope of suspension bridge) or rope (drag-line of cable stayed bridge) as the bridge of main supporting member.Cableway platform has two important features: one be main bearing member to bear axial force, cable, rope bear axial tension, and the stiff girder of cable stayed bridge, self-anchored suspension bridge and bridge tower are based on pressurized; Two be cable as main bearing member, adopt high-strength material (being generally high-tensile steel wires) to make, tensile strength is large, from heavy and light.Therefore, compared with other bridge type, cable bearing system bridge is more suitable for large span future development.And in fact, for the bridge across footpath scope of 200-1500 meters (even larger), cable carrying bogie has competitiveness, cable carrying bogie approximately account for 200-1500 meters across 5/6 of bridge quantity total within the scope of footpath, for now, the common structure pattern of cableway platform mainly contains suspension bridge and cable stayed bridge.
Cableway platform is except above-described suspension bridge and cable stayed bridge, and Abroad in Recent Years all proposes oblique pull-suspension cable co-operative system bridge scheme to a lot of Large Span Bridges engineering.Wherein many very excellent schemes of can yet be regarded as.Although China's starting is more late in oblique pull-suspension cable co-operative system bridge, but along with the development of China's communication, in recent years also repeatedly propose suspension cable-oblique pull co-operative system bridge scheme in domestic many engineerings, the suspension cable-oblique pull co-operative system bridge of the first in the world seat Modern Significance has also been built in Guizhou.
Suspension cable-oblique pull co-operative system bridge is a kind of novel cableway platform, and it is made up of several major parts such as stiff girder, king-tower, main push-towing rope, suspension cable, suspension rod, bases.When becoming bridge, jointly bear deadweight and the external load of structure primarily of main push-towing rope, suspension cable, stiff girder and king-tower.Cable is the main supporting member in structural system, is geometrically unstable system, bears pulling force effect.Cable not only can be out of shape by natural resiliency affects system balance, and can affect system balance by the change of its geometry, and show the nonlinear mechanical characteristics of Large travel range, this is one of key character of suspension cable-oblique pull co-operative system bridge.The cable of suspension cable-oblique pull co-operative system bridge has very large initial tensioning force under dead load, provides powerful gravity stiffness to subsequent structural.This is the basic reason that suspension cable-oblique pull co-operative system spanning footpath is able to continuous increase, stiff girder rise-span ratio is reduced.
Suspension cable-oblique pull co-operative system bridge is generally divided into ground anchor type and self-anchoring type two kinds of systems.
(1) ground anchor type suspension cable-oblique pull co-operative system bridge, as shown in Figure 1a.
This co-operative system bridge needs to build huge anchorage, and main push-towing rope vertical force component and horizontal component are passed to basis.Under the environment that foundation condition is good, self-anchoring type suspension cable-oblique pull co-operative system bridge can be paid the utmost attention to.
(2) self-anchoring type suspension cable-oblique pull co-operative system bridge, as shown in Figure 1 b.
This co-operative system bridge is anchored in stiff girder beam-ends main push-towing rope, and stiff girder also bears the huge axial compression that main push-towing rope and suspension cable transmit except bearing moment of flexure, and there is beam-post effect, structure has obvious geometrical non-linearity feature.Vertical force component is born (vertical force component passes to bridge pier by tension compression bearing) by counterweight and bridge pier, and this system is due to without the need to huge anchorage, and therefore, in soft soil areas, high wind area etc. has very strong superiority.
Self-anchoring type suspension cable-oblique pull co-operative system bridge, girder total weight is passed to girder and king-tower by suspension rod, main push-towing rope and suspension cable by usual employing, girder bears this huge axial pressure, along with the increase across footpath, because girder is from great, girder axle power can be caused excessive, bring the danger of overstep the extreme limit supporting capacity and unstable failure.
Summary of the invention
The present invention provides a kind of self-anchoring type suspension cable-oblique pull co-operative system steel-concrete composite bridge for solving in known technology the technical problem that exists, and this bridge can reduce the axle power of girder, and then avoids girder supporting capacity to transfinite and the danger of unstable failure.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is: a kind of self-anchoring type suspension cable-oblique pull co-operative system steel-concrete composite bridge, comprise king-tower, end bay bridge pier, girder, main push-towing rope, suspension cable and suspension rod, described girder is by described king-tower, described end bay bridge pier, described main push-towing rope and described suspension cable support, described girder by be arranged in middle part across girder and be arranged in the described end bay girder across girder both sides and be formed by connecting, be connected with described main push-towing rope by described suspension rod across the middle part of girder in described, steel-structure box girder across girder in described, described end bay girder is concrete structure case beam.
The advantage that the present invention has and good effect are: by adopting structure steel-concrete combination beam being applied to self-anchoring type suspension cable-oblique pull co-operative system bridge, solve the problem that Long span self-anchoring type suspension cable-oblique pull co-operative system bridge bridge main beam axle power is excessive.And the present invention adopt girder steel as in across girder, this dead load is light, and span ability is strong, and speed of application is fast; Adopt concrete beam as end bay girder, ballast effect can be played on the one hand, be combined with end bay bridge pier on the other hand and can form stable anchor span.
Accompanying drawing explanation
Fig. 1 a is ground anchor type suspension cable-oblique pull cooperation architecture mode;
Fig. 1 b is self-anchoring type suspension cable-oblique pull cooperation architecture mode;
Fig. 2 is front view of the present invention.
In figure: 1, king-tower; 2, end bay bridge pier; 3, across girder in; 4, end bay girder; 5, main push-towing rope; 6, suspension cable; 7, suspension rod.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 2, a kind of self-anchoring type suspension cable-oblique pull co-operative system steel-concrete composite bridge, comprise king-tower 1, end bay bridge pier 2, girder, main push-towing rope 5, suspension cable 6 and suspension rod 7, described girder is by described king-tower 1, described end bay bridge pier 2, described main push-towing rope 5 and described suspension cable 6 support, described girder by be arranged in middle part across girder 3 and be arranged in the described end bay girder 4 across girder 3 both sides and be formed by connecting, be connected with described main push-towing rope 5 by described suspension rod 7 across the middle part of girder 3 in described, steel-structure box girders across girder 3 in described, described end bay girder 4 is concrete structure case beams.
General self-anchoring type suspension cable-oblique pull co-operative system bridge adopts concrete girder, but this structural system causes girder axle power excessive, can not adapt to the requirement of Long span.The present invention is girder steel across girder in adopting, end bay girder is the structure of concrete beam, alleviate the huge axle power that main push-towing rope passes to girder and king-tower, define the self-anchoring type suspension cable-oblique pull co-operative system bridge of the main member compositions such as steel girder, concrete girder, main push-towing rope, suspension rod, suspension cable, king-tower.This bridge construction can be widely used in various self-anchoring type suspension cable-oblique pull co-operative system bridge, can reduce girder axle power, improves speed of application.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make a lot of form, these all belong within protection scope of the present invention.

Claims (1)

1. self-anchoring type suspension cable-oblique pull co-operative system steel-concrete composite bridge, comprise king-tower, end bay bridge pier, girder, main push-towing rope, suspension cable and suspension rod, described girder is supported by described king-tower, described end bay bridge pier, described main push-towing rope and described suspension cable, described girder by be arranged in middle part across girder and be arranged in the described end bay girder across girder both sides and be formed by connecting, be connected with described main push-towing rope by described suspension rod across the middle part of girder in described, it is characterized in that, be steel-structure box girder across girder in described, described end bay girder is concrete structure case beam.
CN201410563501.0A 2014-10-21 2014-10-21 Steel-concrete combining bridge of self-anchored suspension cable-cable-stayed cooperative system Pending CN104264578A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107386091A (en) * 2017-06-07 2017-11-24 东南大学 The suspension bridge of saddle parabola spatial mixing cable system
CN109267497A (en) * 2018-11-28 2019-01-25 中国铁建大桥工程局集团有限公司 A kind of Stiffening Girder of Self-Anchored Suspension Bridge closure method
CN113136784A (en) * 2021-04-16 2021-07-20 上海市政工程设计研究总院(集团)有限公司 Composite main beam cable-stayed bridge

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09296416A (en) * 1996-04-30 1997-11-18 Nippon Steel Corp Diagonally hanging structure and construction method
WO2005035875A1 (en) * 2003-10-14 2005-04-21 Aas-Jakobsen As Bridge structure comprising tower, bridge beam, main/suspension cable, suspending bars, and diagonal cable-stays
CN1676753A (en) * 2005-04-20 2005-10-05 大连理工大学 Self-anchored stayed cable-suspension combined bridge
JP2007051426A (en) * 2005-08-15 2007-03-01 Public Works Research Institute Bridge and construction method of bridge
CN100458015C (en) * 2003-10-14 2009-02-04 Aas-杰克博森公司 Bridge structure comprising tower, bridge beam, main/suspension cable, suspending bars, and diagonal cable-stays
CN201826249U (en) * 2009-11-27 2011-05-11 大连理工大学 Self-anchored hybrid beam cable-stayed suspension cooperative system bridge
CN102839598A (en) * 2012-09-13 2012-12-26 中铁大桥勘测设计院集团有限公司 Mixed type cable-supported bridge
CN202830732U (en) * 2012-09-13 2013-03-27 中铁大桥勘测设计院集团有限公司 Mixing-type cable- rope bearing bridge

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09296416A (en) * 1996-04-30 1997-11-18 Nippon Steel Corp Diagonally hanging structure and construction method
WO2005035875A1 (en) * 2003-10-14 2005-04-21 Aas-Jakobsen As Bridge structure comprising tower, bridge beam, main/suspension cable, suspending bars, and diagonal cable-stays
CN100458015C (en) * 2003-10-14 2009-02-04 Aas-杰克博森公司 Bridge structure comprising tower, bridge beam, main/suspension cable, suspending bars, and diagonal cable-stays
CN1676753A (en) * 2005-04-20 2005-10-05 大连理工大学 Self-anchored stayed cable-suspension combined bridge
JP2007051426A (en) * 2005-08-15 2007-03-01 Public Works Research Institute Bridge and construction method of bridge
CN201826249U (en) * 2009-11-27 2011-05-11 大连理工大学 Self-anchored hybrid beam cable-stayed suspension cooperative system bridge
CN102839598A (en) * 2012-09-13 2012-12-26 中铁大桥勘测设计院集团有限公司 Mixed type cable-supported bridge
CN202830732U (en) * 2012-09-13 2013-03-27 中铁大桥勘测设计院集团有限公司 Mixing-type cable- rope bearing bridge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107386091A (en) * 2017-06-07 2017-11-24 东南大学 The suspension bridge of saddle parabola spatial mixing cable system
CN109267497A (en) * 2018-11-28 2019-01-25 中国铁建大桥工程局集团有限公司 A kind of Stiffening Girder of Self-Anchored Suspension Bridge closure method
CN113136784A (en) * 2021-04-16 2021-07-20 上海市政工程设计研究总院(集团)有限公司 Composite main beam cable-stayed bridge

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Application publication date: 20150107