CN105421236B - 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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- CN105421236B CN105421236B CN201510716506.7A CN201510716506A CN105421236B CN 105421236 B CN105421236 B CN 105421236B CN 201510716506 A CN201510716506 A CN 201510716506A CN 105421236 B CN105421236 B CN 105421236B
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- oblique pull
- cable
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- girder
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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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- Structural Engineering (AREA)
- 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 (b), 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 cantilever end girder of a cable-stayed region (a) and a cantilever end girder of a suspension region (c). The position of the closing opening is arranged at the junction of the cable-stayed region (a) and the overlapping region (b), and is close to the cable-stayed region (a). 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, belongs to technical field of bridge construction, more particularly to a kind of oblique pull is hanged
The folding method of rope co-operative system bridge.
Background technology
The advantage of oblique pull suspension cable co-operative system bridge synthesis two kinds of bridge types of cable-stayed bridge and suspension bridge, Jin Ta areas adopt oblique pull body
System, span centre region adopts cable-cabin structure.To ensure the reasonable transition between two kinds of rigidity difference system bridges, can be in certain limit
Interior setting overlay region, i.e., in a part of section, the suspension cable of existing cable-stayed bridge, has the hoist cable of suspension bridge again, by suspension cable and hoist cable
Shared girder is conducted oneself with dignity and mobile load.
Generally Longspan Bridge selects to close up mouth all in span centre or the position of nearly tower.To oblique pull suspension cable co-operative system bridge
For, close up mouth and be arranged on the length that span centre can then increase cantilever, greatly increase the design difficulty of tower beam temporary consolidation, select
Nearly tower position, then oblique pull part-structure stress cannot ensure.Therefore, oblique pull suspension cable co-operative system closure of bridge structure method should be wrapped first
Include the selection for rationally closing up mouthful position.
Further, since the rigidity of structure of two kinds of systems is inconsistent, and the suspension cable of overlay region does not also set up, must mouth is closed up
The larger discrepancy in elevation and corner irregularity will be produced, therefore, folding method also needs to include closing up regulating measures to ensure smoothly to close up.
A kind of self-anchored stayed cable-suspension combined bridge is disclosed in Chinese invention patent description CN1676753A, this
It is bright by first construct oblique pull bridge portion, resuspend main push-towing rope, temporarily by main push-towing rope anchor in the frame structure that multiple abutment piers are formed, so
The firm girder of suspension cable bridge portion is lifted afterwards, conversion of the earth anchor system to self-anchoring system is completed after girder closes up, formed forever certainly
Anchor system.Although the invention has the advantages that low engineering cost, construction period are short, it is not open a kind of suitable for oblique
The folding method of drawing-suspension cable cooperation bridge, so as to what is existed when cannot efficiently solve oblique pull suspension cable co-operative system closure of bridge structure
The design difficulty of tower beam temporary consolidation is big, oblique pull part-structure stress cannot ensure, close up mouth produces the larger discrepancy in elevation and corner
The problems such as irregularity.
Disclose in Chinese invention patent description CN102154990B a kind of suspention of end bay-in across three tower of oblique pull from anchor
Formula combines the erection method of cable bridge, the step of its erection method is：1. the girder that the cable-stayed bridge and side tower crane of tower draws in being formed；②
Close up girder；3. set up side tower cable crane system；Remove suspention section support；5. oblique pull dorsal funciculus, hoist cable, cable-stayed bridge are adjusted；6. Cheng Qiao.
The invention eliminates temporary consolidation construction and the working procedure for releasing between Bian Ta and girder, and incites somebody to action " side tower cable crane system sets up "
Working procedure moves to girder and all closes up after mouth closes up and carries out, therefore shortens the duration, has saved material consumption and mechanical stage
Class expends, it is to avoid releases and bears the security risk brought by the temporary consolidation of powerful horizontal force.But, the invention is not complete
The whole method for disclosing a kind of determination of determination oblique pull suspension cable co-operative system closure of bridge structure mouth position and closed configuration adjustment, therefore
The design difficulty that cannot efficiently solve the tower beam temporary consolidation existed during oblique pull suspension cable co-operative system closure of bridge structure is big, oblique pull portion
The problems such as separation structure stress cannot ensure, close up the larger discrepancy in elevation of mouth generation and corner irregularity.
The content of the invention
The present invention proposes improvement for the problem that above-mentioned prior art is present, i.e., the technical problem to be solved in the present invention is
A kind of folding method of oblique pull suspension cable co-operative system bridge is provided, oblique pull suspension cable cooperation learning can reasonably be determined by the method
It is the closed position of bridge, while the adjustment of oblique pull suspension cable co-operative system closure of bridge structure state can be realized to ensure smoothly conjunction
Hold together.
The present invention solves the technical scheme of technical problem and is to provide a kind of folding method of oblique pull suspension cable co-operative system bridge,
Which is using the overlay region of oblique pull suspension cable co-operative system bridge as closing up a mouthful position, and passes through erection crane and deck unit erection gantry collaboration is adjusted
Integrate degree of lip-rounding state to realize oblique pull area cantilever end girder and suspend closing up for area's cantilever end girder in midair；Mouthful position that closes up is arranged on
Oblique pull area (A) and the intersection of overlay region (B), and near oblique pull area (A).
In a kind of preferred embodiment of the present invention, by changing the position that the erection crane is located on girder, realize
Adjustment to the elevation and corner of oblique pull area cantilever end girder.
In a kind of preferred embodiment of the present invention, by changing the position that the deck unit erection gantry is located on main push-towing rope, realize
Adjustment to suspending the elevation and corner of area's cantilever end girder in midair.
In a kind of preferred embodiment of the present invention, the main depth of beam of oblique pull area cantilever end after closing up and after closing up
The main depth of beam of suspention area cantilever end between the two difference within 1-2cm.
In a kind of preferred embodiment of the present invention, the corner of the oblique pull area cantilever end girder after closing up and after closing up
The suspention area cantilever end girder corner it is equal.
The invention has the beneficial effects as follows：Closure construction of the present invention for oblique pull suspension cable co-operative system bridge, it is proposed that one
Kind is reasonably closed up mouthful position and erection crane and closes up the construction method of degree of lip-rounding state with deck unit erection gantry corrdinated adjustment.One side of the method
Face can avoid tower beam temporary consolidation from bearing the problem of greater level power, on the other hand using existing construction equipment (two kinds of loop wheel machines)
Can complete to close up the adjustment of mouth, while present invention can ensure that the measure of adjustment needed for loop wheel machine or other devices on girder
Amount is minimum, and when also closing up, the required position adjustment amount to girder is minimum, so as to be effectively improved work efficiency, reduces workmen
Labor intensity.
Description of the drawings
Fig. 1 is a kind of signal for rationally closing up mouthful position of the folding method of oblique pull suspension cable co-operative system bridge of the invention
Figure；
Fig. 2 is a kind of erection crane of the folding method of oblique pull suspension cable co-operative system bridge of the invention and deck unit erection gantry collaboration
Carry out closing up a mouthful experiment material schematic diagram；
In figure：1- erection cranes；2- deck unit erection gantries；3- main push-towing ropes；4- girders；A- oblique pulls area；B- overlay regions；C- suspends area in midair.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
By a kind of closed position schematic diagram (as shown in Figure 1) of the folding method of oblique pull suspension cable co-operative system bridge of the invention
And closed configuration illustrate it is (as shown in Figure 2) understand, a kind of present invention proposition closing up suitable for oblique pull suspension cable co-operative system bridge
Method, including reasonable closed position selection and close up the regulating measures of degree of lip-rounding state, reasonable closed position is selected in oblique pull and outstanding
The transition region (near oblique pull area) of rope, regulating measures are mainly using 2 corrdinated adjustment of erection crane 1 and deck unit erection gantry；It is concrete to wrap
Include following steps：1st, determine and rationally close up a mouthful position：The reasonable closed position of oblique pull suspension cable co-operative system bridge is preferably selected in weight
Folded area's (existing suspension cable has hoist cable again), and near oblique pull area；Because can increase outstanding if a mouthful position is arranged on span centre if closing up
Arm lengths, increase the design difficulty of tower beam temporary consolidation；Select in nearly tower position if mouthful position will be closed up and arranged, cable-stayed bridge is received
Power cannot ensure.Therefore, close up mouth to may be selected within overlay region.Meanwhile, it is the length for reducing oblique pull area cantilever erection, closed position
The boundary position selected in oblique pull area with overlay region is put, and near oblique pull area.2nd, adjustment is closed up degree of lip-rounding state and carries out girder 4 and closes up；
Close up mouthful position and determine in overlay region near the position in oblique pull area, before girder 4 closes up, still have part suspension cable and hoist cable not to pacify
Dress.Carry out closing up the adjustment of degree of lip-rounding state using erection crane 1 and the collaboration of deck unit erection gantry 2, erection crane 1 is to 4 elevation of girder and turns
The adjustment at angle be it is direct, by toward end bay or in across mobile erection crane 1, change position of the erection crane 1 on girder 4,
The elevation and corner at kingpost cantalever end can be changed；Adjustment of the deck unit erection gantry 2 to 4 elevation of girder and corner is indirectly, to pass through
Toward end bay or in across mobile deck unit erection gantry 2, change position of the deck unit erection gantry 2 on main push-towing rope 3, the linear generation to main push-towing rope 3 is direct
Affect, so as to realize indirectly the adjustment to kingpost cantalever end elevation and corner；3rd, checking and accepting is completed after girder closes up.Girder is closed
The target for holding together adjustment is that cantilever end smoothly can be matched, and closes up the girder top highness change of mouthful both sides within 1 to 2cm, and corner is most
May be equal, the corner of its middle girder is the angle formed with horizontal plane by girder.
The present invention for oblique pull suspension cable co-operative system bridge closure construction, it is proposed that one kind reasonably close up mouthful position and
Erection crane closes up the construction method of degree of lip-rounding state with deck unit erection gantry corrdinated adjustment.On the one hand tower beam temporary consolidation can be avoided from bearing
The problem of greater level power, on the other hand can complete to close up the adjustment of mouth using existing construction equipment (two kinds of loop wheel machines), improve
Work efficiency.
The above, the only 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 disclosed herein technical scope in, the change or replacement that can be readily occurred in should all be contained
Cover within protection scope of the present invention.
Claims (5)
1. a kind of folding method of oblique pull suspension cable co-operative system bridge, which is with the overlay region (B) of oblique pull suspension cable co-operative system bridge
As closing up a mouthful position, and degree of lip-rounding state is closed up by erection crane (1) and deck unit erection gantry (2) corrdinated adjustment realize oblique pull area (A)
Cantilever end girder closes up with suspention area's (C) cantilever end girder；It is characterized in that：Mouthful position that closes up is arranged on oblique pull area
(A) and overlay region (B) intersection, and near oblique pull area (A).
2. a kind of folding method of oblique pull suspension cable co-operative system bridge as claimed in claim 1, it is characterised in that：By changing
Position of the erection crane (1) on girder, realizes the adjustment of elevation and corner to oblique pull area (A) cantilever end girder.
3. a kind of folding method of oblique pull suspension cable co-operative system bridge as claimed in claim 1, it is characterised in that：By changing
Position of the deck unit erection gantry (2) on main push-towing rope (3), realizes the tune of the elevation and corner to suspending area (C) cantilever end girder in midair
It is whole.
4. a kind of folding method of oblique pull suspension cable co-operative system bridge as claimed in claim 1, it is characterised in that：After closing up
The main depth of beam of oblique pull area (A) cantilever end and the main depth of beam of suspention area (C) cantilever end after closing up are between the two
Difference is within 1-2cm.
5. a kind of folding method of oblique pull suspension cable co-operative system bridge as claimed in claim 1, it is characterised in that：After closing up
The corner of the corner of oblique pull area (A) the cantilever end girder and suspention area (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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN105421236A CN105421236A (en) | 2016-03-23 |
| CN105421236B true CN105421236B (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN113174863B (en) * | 2021-04-30 | 2022-05-17 | 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2015
- 2015-10-29 CN CN201510716506.7A patent/CN105421236B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 斜拉-悬吊组合体系桥梁的力学及施工过程分析;邱景;《中国优秀硕士学位论文全文数据库 工程科技II辑》;20130115(第1期);正文第59页第2段、第70页第2段及图4-17 * |
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| CN105421236A (en) | 2016-03-23 |
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