CN105421236A - Closing method for cable-stayed and suspension composite bridge - Google Patents
Closing method for cable-stayed and suspension composite bridge Download PDFInfo
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- CN105421236A CN105421236A CN201510716506.7A CN201510716506A CN105421236A CN 105421236 A CN105421236 A CN 105421236A CN 201510716506 A CN201510716506 A CN 201510716506A CN 105421236 A CN105421236 A CN 105421236A
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- oblique pull
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a closing method for a cable-stayed and suspension composite bridge, which belongs to the technical field of bridges. With an overlapping region, close to an cable-stayed region, of the cable-stayed and suspension composite bridge as the position of a closing opening, the form of the closing opening is compositely adjusted through a deck derrick crane and a cable loading crane so as to realize closing of a cable-stayed region cantilever end girder and a suspension region cantilever end girder. For the closing construction of the cable-stayed and suspension composite bridge, the invention discloses a construction method for compositely adjusting the form of the closing opening through the reasonable closing opening position, the deck derrick crane and the cable loading crane; on the one hand, a problem that great horizontal force is burdened on a tower-girder temporary consolidation can be solved; and on the other hand, the adjustment of the closing opening can be finished by using the traditional construction equipment. Therefore, the working efficiency is effectively increased and the labor intensity of construction personnel is reduced.
Description
Technical field
The present invention relates to a kind of folding method of bridge, belong to technical field of bridge construction, particularly relate to a kind of folding method of oblique pull suspension cable co-operative system bridge.
Background technology
The advantage of the comprehensive cable stayed bridge of oblique pull suspension cable co-operative system bridge and suspension bridge two kinds of bridge types, Jin Ta district adopts cable-stayed system, and span centre region adopts cable-cabin structure.For ensureing the reasonable transition between the different system bridge of two kinds of rigidity, can arrange overlay region within the specific limits, namely the suspension cable of existing cable stayed bridge in a part of section, has again the hoist cable of suspension bridge, is conducted oneself with dignity and mobile load by suspension cable and hoist cable shared girder.
Usual Longspan Bridge selects to close up mouth all in the position of span centre or nearly tower.For oblique pull suspension cable co-operative system bridge, close up mouth and be arranged on the length that span centre then can add great cantilever, greatly increase the design difficulty of tower beam temporary consolidation, select in nearly tower position, then oblique pull part-structure is stressed cannot ensure.Therefore, first oblique pull suspension cable co-operative system closure of bridge structure method should comprise the selection of rationally closing up mouthful position.
In addition, because the rigidity of structure of two kinds of systems is inconsistent, and the suspension cable of overlay region does not also set up, and will produce the larger discrepancy in elevation and corner irregularity closing up mouth, therefore, folding method also needs to comprise and closes up regulating measures to ensure to close up smoothly.
A kind of self-anchored stayed cable-suspension combined bridge is disclosed in Chinese invention patent manual CN1676753A, this invention is by cable stayed bridge part of first constructing, hang main push-towing rope again, in the frame construction temporarily main push-towing rope anchor formed at multiple abutment pier, then the firm girder of suspension bridge part is lifted, after girder closes up, complete the conversion of earth anchor system to self-anchoring system, form permanent self-anchoring system.Although this invention has the advantages such as construction costs is low, the construction period is short, but it does not disclose a kind of folding method being applicable to oblique pull-suspension cable cooperation bridge, thus the design difficulty of the tower beam temporary consolidation existed when effectively cannot solve the co-operative system closure of bridge structure of oblique pull suspension cable is large, oblique pull part-structure stressedly cannot ensure, close up mouth produces the problem such as the larger discrepancy in elevation and corner irregularity.
Disclose in Chinese invention patent manual CN102154990B the suspention of a kind of end bay-in across the erection method of oblique pull three tower self-anchoring type combination cable bridge, the step of its erection method is: the girder that in 1. being formed, the cable stayed bridge of tower and limit tower crane draw; 2. girder is closed up; 3. limit tower cable crane system is set up; Remove suspention section support; 5. oblique pull dorsal funciculus, hoist cable, cable stayed bridge is adjusted; 6. Cheng Qiao.This invention eliminates the working procedure of temporary consolidation construction and releasing between Bian Ta and girder, and the working procedure of " erection of limit tower cable crane system " is moved to girder and all close up after mouth closes up and carry out, therefore the duration is shortened, save material consumption and mechanical one-shift expends, avoid the security risk removed the temporary consolidation that bears powerful horizontal force and bring.But, not complete open a kind of of this invention determines that oblique pull suspension cable co-operative system closure of bridge structure mouth position is determined and the method for closed configuration adjustment, and the design difficulty of the tower beam temporary consolidation existed when therefore effectively cannot solve the co-operative system closure of bridge structure of oblique pull suspension cable is large, oblique pull part-structure stressedly cannot ensure, close up problem such as mouth the generation larger discrepancy in elevation and corner irregularity etc.
Summary of the invention
The present invention is directed to above-mentioned prior art Problems existing and propose improvement, namely the technical problem to be solved in the present invention is to provide a kind of folding method of oblique pull suspension cable co-operative system bridge, reasonably can be determined the closed position of oblique pull suspension cable co-operative system bridge by the method, the adjustment of oblique pull suspension cable co-operative system closure of bridge structure state can be realized to ensure to close up smoothly simultaneously.
The technical scheme of technical solution problem of the present invention is to provide a kind of folding method of oblique pull suspension cable co-operative system bridge, it is using the overlay region of oblique pull suspension cable co-operative system bridge as closing up a mouthful position, and closes up degree of lip-rounding state by erection crane and deck unit erection gantry corrdinated adjustment and realize oblique pull district cantilever end girder and suspention the closing up of district's cantilever end girder.
In a kind of preferred embodiment of the present invention, described in close up the intersection that mouthful position is arranged on oblique pull district and overlay region.
In a kind of preferred embodiment of the present invention, described in close up the intersection that mouthful position is arranged on oblique pull district (A) and overlay region (B), and near oblique pull district (A).
In a kind of preferred embodiment of the present invention, being positioned at position on girder by changing described erection crane, realizing the adjustment of elevation to oblique pull district cantilever end girder and corner.
In a kind of preferred embodiment of the present invention, being positioned at position on main push-towing rope by changing described deck unit erection gantry, realizing the adjustment of elevation to suspention district cantilever end girder and corner.
In a kind of preferred embodiment of the present invention, the main depth of beam of described oblique pull district cantilever end after closing up and the main depth of beam of described suspention district cantilever end after closing up between the two difference within 1-2cm.
In a kind of preferred embodiment of the present invention, the corner of the corner of the described oblique pull district cantilever end girder after closing up and the described suspention district cantilever end girder after closing up is equal.
The invention has the beneficial effects as follows: the closure construction that the present invention is directed to oblique pull suspension cable co-operative system bridge, propose a kind of construction method of reasonably closing up mouthful position and erection crane and deck unit erection gantry corrdinated adjustment and closing up degree of lip-rounding state.The method can avoid on the one hand tower beam temporary consolidation to bear problem compared with large horizontal force, utilize existing construction equipment (two kinds of loop wheel machines) that the adjustment of closing up mouth can be completed on the other hand, simultaneously the present invention can ensure that the measure amount of loop wheel machine on girder or the required adjustment of other devices is minimum, when also closing up, the required position adjustment amount to girder is minimum, thus effectively improve work efficiency, reduce the labour intensity of constructor.
Accompanying drawing explanation
Fig. 1 is the schematic diagram rationally closing up mouthful position of the folding method of a kind of oblique pull suspension cable of the present invention co-operative system bridge;
To be that the erection crane of the folding method of a kind of oblique pull suspension cable of the present invention co-operative system bridge and deck unit erection gantry are collaborative carry out closing up a mouthful experiment material schematic diagram Fig. 2;
In figure: 1-erection crane; 2-deck unit erection gantry; 3-main push-towing rope; 4-girder; A-oblique pull district; B-overlay region; C-suspends district in midair.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
From closed position schematic diagram (as shown in Figure 1) and closed configuration signal (as shown in Figure 2) of the folding method of a kind of oblique pull suspension cable of the present invention co-operative system bridge, the present invention proposes a kind of folding method being applicable to oblique pull suspension cable co-operative system bridge, comprise the selection of reasonable closed position and close up the regulating measures of degree of lip-rounding state, reasonable closed position selects the transition region (near oblique pull district) in oblique pull and suspension cable, and regulating measures mainly adopts erection crane 1 and deck unit erection gantry 2 corrdinated adjustment; Specifically comprise the following steps: 1, determine rationally to close up a mouthful position: the reasonable closed position of oblique pull suspension cable co-operative system bridge should be selected overlay region (existing suspension cable, has hoist cable again), and near oblique pull district; If because a mouthful position will be closed up be arranged on span centre, jib-length can be strengthened, increase the design difficulty of tower beam temporary consolidation; If will close up a mouthful position to arrange selection in nearly tower position, then cable stayed bridge is stressed cannot ensure.Therefore, close up mouth can select within overlay region.Meanwhile, for reducing the length of oblique pull district cantilever erection, closed position selects the position, boundary in oblique pull district and overlay region, and near oblique pull district.2, adjustment is closed up degree of lip-rounding state and is carried out girder 4 and close up; Close up the position that mouthful position is determined in overlay region near oblique pull district, before girder 4 closes up, still have part suspension cable and hoist cable not to install.Adopt erection crane 1 and deck unit erection gantry 2 to work in coordination with and carry out the adjustment of closing up degree of lip-rounding state, the adjustment of erection crane 1 pair of girder 4 elevation and corner is direct, by toward end bay or in across mobile erection crane 1, change the position of erection crane 1 on girder 4, elevation and the corner of kingpost cantalever end can be changed; The adjustment of deck unit erection gantry 2 pairs of girder 4 elevations and corner is indirectly, by toward end bay or in across mobile deck unit erection gantry 2, change the position of deck unit erection gantry 2 on main push-towing rope 3, the linear of main push-towing rope 3 is had a direct impact, thus indirectly realize the adjustment to kingpost cantalever end elevation and corner; 3, girder completes checking and accepting after closing up.The target that girder closes up adjustment is that cantilever end can mate smoothly, and close up the girder top highness change of mouthful both sides within 1 to 2cm, corner is equal as far as possible, and the corner of its middle girder is the angle that girder and horizontal plane are formed.
The present invention is directed to the closure construction of oblique pull suspension cable co-operative system bridge, propose a kind of construction method of reasonably closing up mouthful position and erection crane and deck unit erection gantry corrdinated adjustment and closing up degree of lip-rounding state.Tower beam temporary consolidation can be avoided on the one hand to bear problem compared with large horizontal force, utilize existing construction equipment (two kinds of loop wheel machines) that the adjustment of closing up mouth can be completed on the other hand, improve work efficiency.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Claims (7)
1. the folding method of an oblique pull suspension cable co-operative system bridge, it is characterized in that: using the overlay region (B) of oblique pull suspension cable co-operative system bridge as closing up a mouthful position, and close up degree of lip-rounding state by erection crane (1) and deck unit erection gantry (2) corrdinated adjustment and realize oblique pull district (A) cantilever end girder and suspention the closing up of district's (C) cantilever end girder.
2. the folding method of a kind of oblique pull suspension cable co-operative system bridge as claimed in claim 1, is characterized in that: described in close up the intersection that mouthful position is arranged on oblique pull district (A) and overlay region (B).
3. the folding method of a kind of oblique pull suspension cable co-operative system bridge as claimed in claim 2, is characterized in that: described in close up the intersection that mouthful position is arranged on oblique pull district (A) and overlay region (B), and near oblique pull district (A).
4. the folding method of a kind of oblique pull suspension cable co-operative system bridge as claimed in claim 1, it is characterized in that: be positioned at position on girder by changing described erection crane (1), realizing the adjustment of elevation to oblique pull district (A) cantilever end girder and corner.
5. the folding method of a kind of oblique pull suspension cable co-operative system bridge as claimed in claim 1, it is characterized in that: be positioned at position on main push-towing rope (3) by changing described deck unit erection gantry (2), realizing the adjustment of elevation to suspention district (C) cantilever end girder and corner.
6. the folding method of a kind of oblique pull suspension cable co-operative system bridge as claimed in claim 1, is characterized in that: the main depth of beam of described oblique pull district (A) cantilever end after closing up and the main depth of beam of described suspention district (C) cantilever end after closing up between the two difference within 1-2cm.
7. the folding method of a kind of oblique pull suspension cable co-operative system bridge as claimed in claim 1, is characterized in that: the corner of the corner of described oblique pull district (A) the cantilever end girder after closing up and described suspention district (C) the cantilever end girder after closing up is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510716506.7A CN105421236B (en) | 2015-10-29 | 2015-10-29 | Closing method for cable-stayed and suspension composite bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510716506.7A CN105421236B (en) | 2015-10-29 | 2015-10-29 | Closing method for cable-stayed and suspension composite bridge |
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| CN105421236A true CN105421236A (en) | 2016-03-23 |
| CN105421236B CN105421236B (en) | 2017-04-12 |
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| CN201510716506.7A Active CN105421236B (en) | 2015-10-29 | 2015-10-29 | Closing method for cable-stayed and suspension composite bridge |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022958A (en) * | 2017-06-02 | 2017-08-08 | 广西路桥工程集团有限公司 | The method in cable-stayed bridge across girder is installed using cable crane |
| CN109371805A (en) * | 2018-11-14 | 2019-02-22 | 西南交通大学 | A kind of large span multitower cable-cabin structure bridge and its construction method |
| CN110939067A (en) * | 2019-12-09 | 2020-03-31 | 中铁大桥勘测设计院集团有限公司 | Method for determining position of bridge closure section of collaboration system |
| CN111973290A (en) * | 2020-06-30 | 2020-11-24 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Operation rack for transforaminal endoscope |
| CN113174863A (en) * | 2021-04-30 | 2021-07-27 | 中铁大桥勘测设计院集团有限公司 | Construction method of cable-stayed suspension cable cooperation system bridge |
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| CN1676753A (en) * | 2005-04-20 | 2005-10-05 | 大连理工大学 | Self-anchored stayed cable-suspension combined bridge |
| CN101418543A (en) * | 2008-11-21 | 2009-04-29 | 上海市政工程设计研究总院 | Self-anchored rope-suspension bridge inclined drawing construction method |
| KR100969005B1 (en) * | 2009-11-06 | 2010-07-09 | 동아대학교 산학협력단 | Constructing method of suspension bridge and temporary cable therefor |
| CN104631326A (en) * | 2014-12-22 | 2015-05-20 | 广东省公路勘察规划设计院股份有限公司 | Main beam cable-stayed suspension forming technological method for self-anchorage type suspension bridge |
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| CN1676753A (en) * | 2005-04-20 | 2005-10-05 | 大连理工大学 | Self-anchored stayed cable-suspension combined bridge |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022958A (en) * | 2017-06-02 | 2017-08-08 | 广西路桥工程集团有限公司 | The method in cable-stayed bridge across girder is installed using cable crane |
| CN107022958B (en) * | 2017-06-02 | 2019-04-16 | 广西路桥工程集团有限公司 | Use the method across girder in cable crane installation cable-stayed bridge |
| CN109371805A (en) * | 2018-11-14 | 2019-02-22 | 西南交通大学 | A kind of large span multitower cable-cabin structure bridge and its construction method |
| CN110939067A (en) * | 2019-12-09 | 2020-03-31 | 中铁大桥勘测设计院集团有限公司 | Method for determining position of bridge closure section of collaboration system |
| CN110939067B (en) * | 2019-12-09 | 2021-08-03 | 中铁大桥勘测设计院集团有限公司 | Method for determining position of bridge closure section of collaboration system |
| CN111973290A (en) * | 2020-06-30 | 2020-11-24 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Operation rack for transforaminal endoscope |
| CN111973290B (en) * | 2020-06-30 | 2023-03-14 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Operating frame for transforaminal endoscope |
| CN113174863A (en) * | 2021-04-30 | 2021-07-27 | 中铁大桥勘测设计院集团有限公司 | Construction method of cable-stayed suspension cable cooperation system bridge |
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| CN105421236B (en) | 2017-04-12 |
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