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Whole bridge integrally synchronized jacking support replacing system and construction method

A technology of simultaneous jacking and construction methods, applied in bridges, bridge maintenance, bridge reinforcement and other directions, can solve the problems of uneven settlement cracks, high consumption costs, and long construction periods in bridge deck structures, so as to avoid bridge stress. All damage, simple operation and safety, the effect of safe bridge jacking

Pending Publication Date: 2018-10-19
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
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Problems solved by technology

[0004] The object of the present invention is to provide a bridge overall synchronous jacking support replacement system and construction method that uses the top space of the cover beam as a counter force support to realize the replacement of the whole bridge in a synchronous and simultaneous jacking manner. The following problems exist in the technology: the traditional replacement method has complicated procedures, long construction period, high consumption cost, great impact on normal traffic on the bridge, and uneven settlement cracks in the bridge deck structure

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  • Whole bridge integrally synchronized jacking support replacing system and construction method
  • Whole bridge integrally synchronized jacking support replacing system and construction method
  • Whole bridge integrally synchronized jacking support replacing system and construction method

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Embodiment Construction

[0046] The technical solutions of the present invention will be further elaborated and described below in conjunction with the accompanying drawings and specific embodiments.

[0047] A bridge overall synchronous jacking support replacement system, such as Figure 1-20 As shown, the system is used to replace the sixteen supports 2 under the two prefabricated beams 3; the system includes a programmable logic controller (PLC) and two hydraulic pump stations, the hydraulic pump station mainly includes a motor and an oil pump. The single-chip microcomputer of the above motor is connected to the programmable controller, the motor is connected to the frequency converter, the oil pump is connected to the jacking cylinder through the oil pipe, and the jacking valve and unloading valve of the jacking cylinder are connected to the programmable controller. The pumping station is connected to eight jacking cylinders, which are connected to the oil pump through an oil diverter. Each jackin...

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Abstract

The invention discloses a whole bridge synchronized jacking support replacing system and a construction method. By adopting a PLC (Programmable Logic Controller) hydraulic synchronized jacking system,synchronization and accuracy of a jacking process can be accurately ensured, destruction caused by uneven stress of a bridge can be avoided, various parameters of a control system can be set and controlled on a touch screen, and unification of operation is ensured due to centralized operation; all data such as displacement, pressure, jacking height and error during running of the system can be displayed in real time, an abnormal situation during the running of the system can be subjected to automatic treatment and alarm displaying, the operation of the system becomes simpler and safer, and real-time monitoring of a whole process of support jacking and replacing is realized. The invention aims to provide the whole bridge synchronized jacking support replacing system which utilizes top space of a cover beam as counterforce support and realizes support replacement of the whole bridge in a synchronized and simultaneous jacking way, and the construction method.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to a replacement system and a construction method for synchronous jacking support of a bridge as a whole. Background technique [0002] At present, some diseases are common in bridges in our country, especially the bridge bearings, as the force transmission parts of the upper structure and bridge piers, have the function of connecting the upper and lower. Due to the traffic load of the bridge and the aging of the rubber bearings, the bearings often appear. Cracking, excessive shear deformation and other problems, the shock absorption and slippage of the bearings are seriously attenuated, which seriously affects the service life of the bridge. For this reason, the damaged support needs to be replaced. Replacement of bearings requires bridge jacking. The key point of bridge jacking is to maintain the integrity of the bridge superstructure. To ensure the integrity of the bridge super...

Claims

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Application Information

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IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 李三伟陈伟高柳银花张撞撞
Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD
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