CN104652283A - Asynchronous splicing construction method for symmetrically splicing main steel girder erection cranes of cable-stayed bridge - Google Patents
Asynchronous splicing construction method for symmetrically splicing main steel girder erection cranes of cable-stayed bridge Download PDFInfo
- Publication number
- CN104652283A CN104652283A CN201510011866.7A CN201510011866A CN104652283A CN 104652283 A CN104652283 A CN 104652283A CN 201510011866 A CN201510011866 A CN 201510011866A CN 104652283 A CN104652283 A CN 104652283A
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- girder
- steel
- cable
- river
- girder erection
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Classifications
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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
- E01D21/10—Cantilevered erection
- E01D21/105—Balanced cantilevered erection
Abstract
The invention relates to an asynchronous splicing construction method for symmetrically splicing main steel girder erection cranes of a cable-stayed bridge. The asynchronous splicing construction method comprises the following steps of splicing a bank side girder erection crane on a steel box girder surface in a pier roof cable-free area, and hoisting a bank side steel girder; moving the bank side girder erection crane towards a bank side to a setting position and anchoring the bank side girder erection crane; installing a river side girder erection crane, and hoisting a river side steel girder; moving the river side erection crane towards a river side to a setting position and anchoring the river side girder erection crane; starting to synchronously erect follow-up steel box girders which are symmetrical to a cantilever by the two girder erection cranes. According to the asynchronous splicing construction method disclosed by the invention, by adopting a mode that the girder erection crane and the steel girder on one side are firstly installed and the girder erection crane and the steel girder on the other side are installed later, the space is increased by utilizing the extension of a steel box girder in the pier roof cable-free area by the steel girders at two sides, the problem that the space is insufficient by synchronously installing the girder erection cranes is solved, meanwhile, a large-size support for supporting the girder erection cranes is prevented from being designed and constructed in water, the consumption of support materials is reduced, and the construction cost is greatly reduced; the asynchronous splicing construction method can be applied to bridge erection.
Description
Technical field
The present invention relates to bridge erection field, the asynchronous assembling and construction method that particularly a kind of cable stayed bridge steel girder girder erection crane is symmetrical assembled.
Background technology
Along with the development of China's transport development, large span stayed-cable bridge occurs more and more, and the construction of cantilever whole segmental erection is the very common a kind of form of construction work of large span stayed-cable bridge steel case main girder construction, especially on the water during whole segmental erection construction, just need to take navigation channel for a long time as adopted during the direct scheme of architecture of large-scale floating crane, there is larger security risk, and antenna height is large, constructional difficulties, also there is safety cost and drop into great problem, therefore all consider that girder erection crane carries out the whole sections cantilever erection construction of steel box-girder under normal circumstances.Girder erection crane cantilever erection construction method is adopted for large span stayed-cable bridge steel case girder, conventional method is: erection construction pier top section cordless section steel box-girder pier-side bracket (mainly serving the effect of erection Dun Ding non-stayed cable segment steel box-girder), utilize Large-scale Hoisting equipment hoisting Dun Ding non-stayed cable segment steel box-girder, tower beam temporary consolidation is installed and fixes non-stayed cable segment steel box-girder, then at the girder erection crane setting up synchronous symmetrical assembled cantilever both sides on girder steel face, after examination has been hung, start synchronous symmetrical free cantilever erection residue beam section, suspension cable is by steel box girder section segment sync symmetrical construction therebetween.
The both sides girder erection crane of steel box beam erection is synchronously assembled, need larger assembled space, Dun Ding non-stayed cable segment steel box-girder needs the sections end face installed in advance at least will meet the requirement of the plane space of the synchronous assembled erect-position of both sides girder erection crane before spelling girder erection crane, namely multistage steel box-girder section generally need be installed in advance and can meet the synchronous symmetrical mounting plane space requirement of both sides girder erection crane, and the limited space of main pier bearing platform end face, the steel box-girder pier-side bracket being supported on cushion cap end face can not meet so many sections steel box-girder and installs, therefore then need in water, design large-scale girder steel bracket support beam body.But large-scale bracket not only design and construction is all comparatively loaded down with trivial details, difficult, and construction works amount is large, and security risk is high, also needs inserted to play steel pipe pile foundation in water, needs large-scale pile driving barge to march into the arena, and construction cost drops into higher.
Summary of the invention
In order to overcome above-mentioned technical problem, the object of the present invention is to provide the asynchronous assembling and construction method that a kind of cable stayed bridge steel girder girder erection crane reducing construction cost is symmetrical assembled.
The technical solution adopted in the present invention is:
The asynchronous assembling and construction method that cable stayed bridge steel girder girder erection crane is symmetrical assembled, for the erection of Dun Ding non-stayed cable segment steel box-girder space of planes by two gantry beams loop wheel machines of prescribing a time limit, comprises the following steps:
A. at the girder erection crane of assembled bank side, steel box-girder face, Dun Ding non-stayed cable segment, and this girder erection crane is utilized to lift the bank side girder steel be connected with non-stayed cable segment steel box-girder;
B. the girder erection crane of bank side moves to desired location and anchoring through side, girder steel onshore, bank side;
C. the girder erection crane of side, river is mounted to steel box-girder face, Dun Ding non-stayed cable segment, and utilizes this girder erection crane to lift side, river girder steel, side, river girder steel is connected to opposite side non-stayed cable segment steel box-girder being positioned at bank side girder steel;
D. girder erection crane anchoring after side, river girder steel moves to desired location to side, river of side, river;
E. two gantry beams loop wheel machines start the follow-up steel box-girder of synchronous symmetrical cantilever erection.
As a further improvement on the present invention, in step a, after bank side steel girder erection is complete, accesses corresponding suspension cable and first time stretch-draw is carried out to this suspension cable.
As a further improvement on the present invention, before step e implements, the suspension cable of side, opposite bank girder steel carries out second time stretch-draw.
As a further improvement on the present invention, in step c, after side, river steel girder erection completes, access corresponding suspension cable and first time stretch-draw is carried out to this suspension cable.
As a further improvement on the present invention, step e carries out second time stretch-draw to the suspension cable of side, river girder steel before implementing.
As a further improvement on the present invention, in step c, after side, river steel girder erection completes, access corresponding suspension cable and first time stretch-draw is carried out to this suspension cable.
As a further improvement on the present invention, step e carry out second time stretch-draw to the suspension cable of side, river girder steel, and the second time stretch-draw of side, river girder steel and bank side girder steel suspension cable is synchronously carried out before implementing.
As a further improvement on the present invention, while implementation step b, the girder erection crane of side, assembled river in advance on the outside plant of Dun Ding non-stayed cable segment steel box-girder, integral hoisting is afterwards to steel box-girder face, Dun Ding non-stayed cable segment.
As a further improvement on the present invention, in step a, utilize the assembled girder erection crane of the crane barge of tower crane and river surface.
The invention has the beneficial effects as follows: the present invention adopts and first installs one-sided girder erection crane and one-sided girder steel, the mode of rear installation opposite side girder erection crane and girder steel, utilize both sides girder steel to the prolongation of Dun Ding non-stayed cable segment steel box-girder thus add space, solve the problem of the synchronous assembled insufficient space of girder erection crane, avoid simultaneously design in water, large-scale support of constructing to be to support girder erection crane, save the consumption of timbering material, thus greatly reduce security risk and shorten the construction period, greatly reduce the input of construction cost.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the present invention is further described.
Fig. 1 is the working condition chart of cable stayed bridge to be onstructed;
Fig. 2 is bank side steel girder erection schematic diagram in construction method of the present invention;
Fig. 3 is the schematic diagram of bank side girder erection crane anchoring in construction method of the present invention;
Fig. 4 is construction method Zhong Jiang side of the present invention steel girder erection schematic diagram;
Fig. 5 is the schematic diagram of construction method Zhong Jiang side of the present invention girder erection crane anchoring.
Detailed description of the invention
As shown in Figure 1, the bottom of Sarasota 1 is for being fixed on fluviatic tower pier 2, and girder steel bracket 3 is with Sarasota tower pier 2 for installation foundation erection, and top is attached on Sarasota lower transverse beam 4, for non-stayed cable segment, support pier top steel box-girder, to reduce steel box girder cantilever length.Girder steel bracket 3 is installed side by side three sections of steel box-girder, by left-to-right be E02, E01, E03 respectively, three sections of steel box-girder be always about 30m.And the length of separate unit girder erection crane is about 20m, the plane space requirement that both sides girder erection crane is synchronously assembled therefore cannot be met.Shown in Fig. 1, the left side of Sarasota 1, towards embankment, is called bank side, and the right side of Sarasota 1, towards rivers center, is therefore called side, river.
Construction method in embodiment is as follows:
(1) as shown in Figure 1, utilize the large-scale floating crane of river surface that the steel box-girder (E01, E02, E03) of 3 sections in Sarasota tower Dun Dun non-stayed cable segment, top is installed, tower beam temporary consolidation is installed and fixes non-stayed cable segment steel box-girder.
(2) as shown in Figure 2, after the steel box-girder of 3 sections installs, utilize the separate unit girder erection crane 5 of the crane barge of tower crane and river surface assembled bank side in steel box-girder face, and utilize this girder erection crane 5 to lift bank side girder steel 6, make bank side girder steel 6 connect the left side of non-stayed cable segment steel box-girder.
(3), as shown in Figure 3, after bank side girder steel 6 installs, use first pair of suspension cable 7 to be connected with Sarasota 1 by bank side girder steel 6, by monitored instruction tonnage demand, first time stretch-draw is carried out to this suspension cable 7; After stretch-draw completes, the space above three sections of steel box-girder to walking 18m and anchoring, is abdicated in the side, girder erection crane 5 onshore of bank side;
(4) as shown in Figure 4, the girder erection crane 8 of side, river is mounted to steel box-girder face, Dun Ding non-stayed cable segment, after examination has been hung, utilize this girder erection crane 8 to lift side, river girder steel 9, side, river girder steel 9 has been connected to opposite side non-stayed cable segment steel box-girder being positioned at bank side girder steel 6.In order to accelerate the construction period, assembled and the installation of bank side girder steel 6 of side, river girder erection crane 8 is carried out simultaneously, namely when bank side girder steel 6 is installed, the outside plant (as trestle) of Dun Ding non-stayed cable segment steel box-girder synchronously carries out river side frame beam crane chassis is assembled, brace spreading, hoist engine are fixing, after treating that bank side girder erection crane 8 is walked, recycling side, crane barge bulk integral hoisting river girder erection crane 8 to steel box-girder end face is to accelerate assembled speed.
(5) as shown in Figure 5, after side, river girder steel 9 installs, use first pair of suspension cable 10 of side, river to be connected with Sarasota 1 by side, river girder steel 9, by monitored instruction tonnage, first time stretch-draw is carried out to this suspension cable 10; Then side, river girder erection crane 8 (to side, river to) traveling 15m anchoring to the right, (to side, river to) fall back bank side girder erection crane 5 traveling 3m anchoring to the right.
(6) as shown in Figure 5, first pair of suspension cable 10 of the first pair of suspension cable 7 and side, river that simultaneously carry out bank side by monitored instruction tonnage demand carries out second time stretch-draw, and after stretch-draw, both sides girder erection crane starts the follow-up steel box-girder of synchronous symmetrical cantilever erection.
Method in the present embodiment, the construction of bridge permanent structure is utilized to coordinate (steel box-girder, Sarasota Ta Dun, side, river girder steel and bank side girder steel) to solve the problem of the synchronous assembled plane space deficiency of girder erection crane, two gantry beams loop wheel machines adopt successively asymmetric asynchronous assembling method, the design and the peace that avoid the medium-and-large-sized support of water tear construction open, it also avoid the large-scale pile driving barge of inserted to play steel pipe pile foundation in water to march into the arena, difficulty of construction and cost drop into and greatly reduce, also greatly reduce security risk and shorten the construction period, decrease the input of construction cost, ensure that safety.
The above is the preferred embodiment of the present invention, and it does not form limiting the scope of the invention.
Claims (9)
1. the asynchronous assembling and construction method that cable stayed bridge steel girder girder erection crane is symmetrical assembled, for the erection of Dun Ding non-stayed cable segment steel box-girder space of planes by two gantry beams loop wheel machines of prescribing a time limit, is characterized in that, comprise the following steps:
A. at the girder erection crane of assembled bank side, steel box-girder face, Dun Ding non-stayed cable segment, and this girder erection crane is utilized to lift the bank side girder steel be connected with non-stayed cable segment steel box-girder;
B. the girder erection crane of bank side moves to desired location and anchoring through side, girder steel onshore, bank side;
C. the girder erection crane of side, river is mounted to steel box-girder face, Dun Ding non-stayed cable segment, and utilizes this girder erection crane to lift side, river girder steel, side, river girder steel is connected to opposite side non-stayed cable segment steel box-girder being positioned at bank side girder steel;
D. girder erection crane anchoring after side, river girder steel moves to desired location to side, river of side, river;
E. two gantry beams loop wheel machines start the follow-up steel box-girder of synchronous symmetrical cantilever erection.
2. the asynchronous assembling and construction method that cable stayed bridge steel girder girder erection crane according to claim 1 is symmetrical assembled, is characterized in that: in step a, after bank side steel girder erection is complete, accesses corresponding suspension cable and carry out first time stretch-draw to this suspension cable.
3. the asynchronous assembling and construction method that cable stayed bridge steel girder girder erection crane according to claim 2 is symmetrical assembled, is characterized in that: before step e implements, the suspension cable of side, opposite bank girder steel carries out second time stretch-draw.
4. the asynchronous assembling and construction method that cable stayed bridge steel girder girder erection crane according to claim 1 is symmetrical assembled, is characterized in that: in step c, after side, river steel girder erection completes, accesses corresponding suspension cable and carry out first time stretch-draw to this suspension cable.
5. the asynchronous assembling and construction method that cable stayed bridge steel girder girder erection crane according to claim 4 is symmetrical assembled, is characterized in that: step e carries out second time stretch-draw to the suspension cable of side, river girder steel before implementing.
6. the asynchronous assembling and construction method that cable stayed bridge steel girder girder erection crane according to claim 3 is symmetrical assembled, is characterized in that: in step c, after side, river steel girder erection completes, accesses corresponding suspension cable and carry out first time stretch-draw to this suspension cable.
7. the asynchronous assembling and construction method that cable stayed bridge steel girder girder erection crane according to claim 6 is symmetrical assembled, it is characterized in that: before step e implements, second time stretch-draw is carried out to the suspension cable of side, river girder steel, and the second time stretch-draw of side, river girder steel and bank side girder steel suspension cable is synchronously carried out.
8. the asynchronous assembling and construction method that cable stayed bridge steel girder girder erection crane according to any one of claim 1 to 7 is symmetrical assembled, it is characterized in that: while implementation step b, the girder erection crane of side, assembled river in advance on the outside plant of Dun Ding non-stayed cable segment steel box-girder, integral hoisting is afterwards to steel box-girder face, Dun Ding non-stayed cable segment.
9. the asynchronous assembling and construction method that cable stayed bridge steel girder girder erection crane according to any one of claim 1 to 7 is symmetrical assembled, is characterized in that: in step a, utilizes the assembled girder erection crane of the crane barge of tower crane and river surface.
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| CN201510011866.7A CN104652283A (en) | 2015-01-09 | 2015-01-09 | Asynchronous splicing construction method for symmetrically splicing main steel girder erection cranes of cable-stayed bridge |
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| CN201510011866.7A CN104652283A (en) | 2015-01-09 | 2015-01-09 | Asynchronous splicing construction method for symmetrically splicing main steel girder erection cranes of cable-stayed bridge |
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Cited By (13)
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|---|---|---|---|---|
| CN105200923A (en) * | 2015-09-08 | 2015-12-30 | 贵州省公路工程集团有限公司 | Hoisting device for steel truss sections of steel truss cable-stayed bridge and hoisting method of hoisting device |
| CN105926457A (en) * | 2016-05-30 | 2016-09-07 | 中国铁建大桥工程局集团有限公司 | Method for mounting steel box girders in main tower area of cable-stayed bridge and auxiliary girder erection crane base |
| CN106192762A (en) * | 2016-08-16 | 2016-12-07 | 山东省路桥集团有限公司 | Steel box girder construction trestle fortune beam, beam body plane swivel, free cantilever erection construction method |
| CN106522101A (en) * | 2016-11-17 | 2017-03-22 | 中交路桥华东工程有限公司 | Construction method of superlong cable beam-free sections of cable-stayed bridge |
| ES2624211A1 (en) * | 2016-01-13 | 2017-07-13 | Puentes Y Calzadas Grupo De Empresas, S.A. | System to extend a cable-stayed bridge structure, extended cable-stayed bridge structure and its constructive process (Machine-translation by Google Translate, not legally binding) |
| CN108824202A (en) * | 2018-07-05 | 2018-11-16 | 中交第二航务工程局有限公司 | For the installation of concrete deck cable stayed bridge Hanging Basket and the support system of tower area beam cast-in-place construction |
| CN110424272A (en) * | 2019-08-27 | 2019-11-08 | 中交路桥华南工程有限公司 | Sarasota beam section bracket and its erection method |
| CN110725208A (en) * | 2019-09-17 | 2020-01-24 | 中铁大桥局集团第五工程有限公司 | Construction method for erecting pier top superposed beam without support |
| CN110863436A (en) * | 2019-12-09 | 2020-03-06 | 中铁大桥局集团有限公司 | Construction method for auxiliary pier and side pier top segment of cantilever-erected cable-stayed bridge |
| CN111996914A (en) * | 2020-07-21 | 2020-11-27 | 中交第二航务工程局有限公司 | Method for quickly assembling multi-section cantilever of prefabricated box girder |
| CN113152299A (en) * | 2021-04-23 | 2021-07-23 | 中交第二航务工程局有限公司 | Cable-stayed bridge steel beam segment swinging device and hoisting method |
| CN113802461A (en) * | 2021-09-27 | 2021-12-17 | 中铁广州工程局集团有限公司 | Steel box girder erection method |
| CN114855632A (en) * | 2022-05-31 | 2022-08-05 | 中交路桥建设有限公司 | Steel-concrete composite beam cable-stayed bridge construction system and steel-concrete composite beam construction method |
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| CN105200923B (en) * | 2015-09-08 | 2018-07-13 | 贵州省公路工程集团有限公司 | A kind of steel truss girder cable-stayed bridge steel truss girder segment handling apparatus and its handling method |
| CN105200923A (en) * | 2015-09-08 | 2015-12-30 | 贵州省公路工程集团有限公司 | Hoisting device for steel truss sections of steel truss cable-stayed bridge and hoisting method of hoisting device |
| ES2624211A1 (en) * | 2016-01-13 | 2017-07-13 | Puentes Y Calzadas Grupo De Empresas, S.A. | System to extend a cable-stayed bridge structure, extended cable-stayed bridge structure and its constructive process (Machine-translation by Google Translate, not legally binding) |
| CN105926457A (en) * | 2016-05-30 | 2016-09-07 | 中国铁建大桥工程局集团有限公司 | Method for mounting steel box girders in main tower area of cable-stayed bridge and auxiliary girder erection crane base |
| CN106192762A (en) * | 2016-08-16 | 2016-12-07 | 山东省路桥集团有限公司 | Steel box girder construction trestle fortune beam, beam body plane swivel, free cantilever erection construction method |
| CN106522101A (en) * | 2016-11-17 | 2017-03-22 | 中交路桥华东工程有限公司 | Construction method of superlong cable beam-free sections of cable-stayed bridge |
| CN108824202B (en) * | 2018-07-05 | 2023-06-09 | 中交第二航务工程局有限公司 | Support system for concrete cable-stayed bridge hanging basket installation and tower area beam cast-in-situ construction |
| CN108824202A (en) * | 2018-07-05 | 2018-11-16 | 中交第二航务工程局有限公司 | For the installation of concrete deck cable stayed bridge Hanging Basket and the support system of tower area beam cast-in-place construction |
| CN110424272A (en) * | 2019-08-27 | 2019-11-08 | 中交路桥华南工程有限公司 | Sarasota beam section bracket and its erection method |
| CN110725208A (en) * | 2019-09-17 | 2020-01-24 | 中铁大桥局集团第五工程有限公司 | Construction method for erecting pier top superposed beam without support |
| CN110863436A (en) * | 2019-12-09 | 2020-03-06 | 中铁大桥局集团有限公司 | Construction method for auxiliary pier and side pier top segment of cantilever-erected cable-stayed bridge |
| CN111996914A (en) * | 2020-07-21 | 2020-11-27 | 中交第二航务工程局有限公司 | Method for quickly assembling multi-section cantilever of prefabricated box girder |
| CN113152299A (en) * | 2021-04-23 | 2021-07-23 | 中交第二航务工程局有限公司 | Cable-stayed bridge steel beam segment swinging device and hoisting method |
| CN113802461A (en) * | 2021-09-27 | 2021-12-17 | 中铁广州工程局集团有限公司 | Steel box girder erection method |
| CN113802461B (en) * | 2021-09-27 | 2024-03-19 | 中铁广州工程局集团有限公司 | Steel box girder erection method |
| CN114855632A (en) * | 2022-05-31 | 2022-08-05 | 中交路桥建设有限公司 | Steel-concrete composite beam cable-stayed bridge construction system and steel-concrete composite beam construction method |
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Application publication date: 20150527 |