Steel hanging box device for inspection and maintenance of underwater bearing platform of existing bridge

Abstract

A steel hanging box device for inspection and maintenance of an underwater bearing platform of an existing bridge is a rectangular steel box body with an opening in the top, and comprises side platesand a base plate. The steel hanging box device is formed by the two long side plates, the two short side plates and the base plate in a combined mode. Each long side plate is divided into two plates with the same shapes and the same sizes from the middle in the length direction, a plug pin structure is installed on the division portion of each long side plate, and the two divided side plates of each long side plate are connected through the corresponding plug pin structure. The base plate is connected with the long side plates and the short side plates. A gap which includes the region occupiedby the space between pile foundation holes is preformed in the middle of the base plate. The base plate is divided from the middle in the length direction, and a steel hanging box is divided into twoportions which are connected through the plug pin structures. The steel hanging box device is designed to be the left portion and the right portion, the long side plates of the two portions are connected through the plug pin structures, the base plate coincides with a pile foundation at the bottom of the underwater bearing platform, and therefore the problem that drainage construction cannot be conducted on the underwater bearing platform and piers of the existing bridge for a long time is solved, the steel hanging box device can be reused, and the construction cost is reduced.

Description

technical field [0001] The invention relates to a steel hanging box device for inspection and maintenance of an existing bridge underwater bearing platform, which belongs to the technical field of bridge construction. Background technique [0002] When bridge piers, columns, and caps are constructed in water, it is usually necessary to manufacture cofferdams in advance, then drain the water in the cofferdams, and then carry out the construction of caps and pier columns. [0003] The steel hanging box is suitable for the construction of high pile caps for deep water foundations. The steel hanging box cofferdam is a bottom structure, which is suspended in the water after sinking to the design elevation. cofferdam. Steel hanging box cofferdam construction is also divided into pile first and then weir method and first weir and then pile method. [0004] The steel hanging box cofferdam is a box-shaped structure used for waterproofing when building the pier foundation in water. ...

AI Technical Summary

Problems solved by technology

[0009] (1) After the caps or pier columns have been completed, because the caps or pier columns already exist or partially exist, if the existing cofferdam is damaged, it is necessary to re-insulate the caps or pier columns and complete the follow-up process. The steel hanging box cannot be installed and in place because of the bottom;

[0010] (2) After many years of use of the existing bridge in water, if there is disease or damage, when it is necessary to check and repair the water barrier, the existing steel hanging box structure cannot be installed and put in place.

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