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Combined jacking device for overhead and bridge installation and its non-intermittent jacking method

A jacking device and jacking technology, applied in bridge construction and elevated fields, can solve problems such as high cost, safety factor and low construction efficiency, and achieve the effect of avoiding impact

Active Publication Date: 2015-10-28
SHANGHAI MECHANIZED CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a combined jacking device for elevated and bridge installations and a non-intermittent jacking method to solve the problems in the prior art that the cost of the jacking device is too high and the safety factor and construction efficiency are low

Method used

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  • Combined jacking device for overhead and bridge installation and its non-intermittent jacking method
  • Combined jacking device for overhead and bridge installation and its non-intermittent jacking method
  • Combined jacking device for overhead and bridge installation and its non-intermittent jacking method

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Embodiment Construction

[0021] The combined jacking device and its non-intermittent 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.

[0022] The core idea of ​​the present invention is to provide a combined jacking device and a non-intermittent jacking method for the installation of viaducts and bridges. It uses two jacking units to cyclically jack up the bridge box girder, and alternately jacks to make it move. The jacking work can be carried out without interruption, which improves the efficiency of viaduct and bridge constru...

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Abstract

The invention provides a combined pushing device for mounting of overhead highways and bridges and an unintermittent pushing method of the combined pushing device. The combined pushing device comprises two pushing units. The pushing units circularly jack bridge box girders and alternately push the same to move to realize unintermittent pushing work, so that mounting and constructing efficiency of the overhead highways and the bridges is improved; the combined pushing device does not apply horizontal thrust to permanent piers during use, so that smoothness and safety of pushing of the bridge box girders and linearity of the bottoms of the bridge box girders are guaranteed while cost is reduced, and influences on sliding construction due to special topographic conditions of under-span portions of bridge box girder structures are 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 and a non-intermittent jacking method for viaduct and bridge installation. 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 large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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