Combined jacking device and synchronous jacking method for viaduct and bridge installation
A jacking device and jacking technology, which are applied in bridge engineering construction and elevated fields, can solve the problems of high cost of jacking device, low safety factor and low construction efficiency, and achieve the effect of reducing construction cost, improving economy and avoiding impact.
Active Publication Date: 2016-05-04
SHANGHAI MECHANIZED CONSTR GRP
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[0003] The invention provides a combined jacking device and a synchronous jacking method for the installation of viaducts and bridges, so as to solve the problems of high cost, low safety factor and low construction efficiency of the jacking device in the prior art
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[0022] The combined jacking device and synchronous jacking method for elevated and bridge installations proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.
[0023] The core idea of the present invention is to provide a combined jacking device for viaduct and bridge installation and its synchronous jacking method, which uses two jacking units to jointly jack up the bridge box girder and make it move, and then returns it by turns The jacking unit can be returned to its original position by means of the position method. On the premise of ensuring the safety an...
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The invention provides a combined pushing device and a synchronous pushing method for mounting an elevated road and a bridge. The combined pushing device comprises two pushing units; the two pushing units jointly push a bridge box girder and synchronously push to move the bridge box girder; the pushing units are returned in situ in turn; the equipment capacity is fully used under the premise that the safety and the stability of the pushing process are ensured, the economy of the equipment configuration is improved, the construction cost is reduced, and no horizontal push force is generated for a permanent bridge pier when the combined pushing device is used; the pushing stability and safety of the bridge box girder are ensured while the cost is reduced, and the linearity of the bottom of the bridge box girder is ensured; the influence to the slippage construction caused by the special topographic conditions under the bridge box girder structure is effectively avoided.
Description
technical field [0001] The invention relates to the technical field of viaduct and bridge engineering construction, in particular to a combined jacking device for viaduct and bridge installation and a synchronous jacking method thereof. Background technique [0002] In the current steel box bridge deck jacking construction technology, a group of lifting cylinders and a group of thrust cylinders are generally used to work together. Lift the bridge box girder through the lifting cylinder, push the bridge box girder through the thrust cylinder, and then lower it to the temporary support in the temporary fixing support device through the lifting cylinder after a certain distance, and use the temporary support to support the bridge box girder , and then continue to retract the lifting cylinder to separate it from the bridge box girder, and then retract the thrust cylinder. One stroke forward work. There are certain disadvantages in this construction method: First, due to the la...
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IPC IPC(8): E01D21/00
Inventor 陈晓明王云飞张宇潘令誉俞嫒妍刘泉吴君史维许勇杨斌王正佳王佳玮程远程
Owner SHANGHAI MECHANIZED CONSTR GRP