A steel hanging box device for the inspection and maintenance of the existing bridge underwater bearing platform

Abstract

A steel hanging box device for inspection and maintenance of an existing bridge underwater bearing platform is a rectangular steel box body with an upper opening, including a side plate and a bottom plate; the steel hanging box device is composed of two long side plates and two short The side plate and the bottom plate are combined; the long side plate is divided into two pieces of the same shape and size in the middle part of the length, and a bolt structure is installed at the separation place, and the two separated side plates are connected by the bolt structure; the bottom plate is connected to the long side respectively. plate and short side plate; the middle part of the bottom plate is preset to include the vacancy of the area occupied by the pile foundation hole and the pile foundation hole; the bottom plate is separated from the middle in the length direction, and the steel hanging box is divided into two parts connected by a bolt structure. part. In the invention, the steel hanging box device is designed into two parts: left and right, the long side plates of the two parts are connected by a bolt structure, and the bottom plate is matched with the pile foundation under the underwater bearing platform, which solves the problem of the existing bridge underwater bearing platform and pier column for a long time. There is no problem of drainage construction, and it can be reused, which reduces the construction cost.

Description

technical field [0001] The invention relates to a steel hanging box device for inspection and maintenance of an existing bridge underwater bearing platform, belonging to the technical field of bridge construction. Background technique [0002] When the bridge piers, columns, and caps are constructed in water, the cofferdam is usually fabricated in advance, and then the water in the cofferdam is drained, and then the caps and piers are constructed. [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 bottomed structure. After sinking to the design elevation, it is suspended in the water. cofferdam. The construction of steel hanging box cofferdam is also divided into the pile first and then weir method and the first weir and then pile method. [0004] The steel hanging box cofferdam is a box-shaped structure used for waterproofing when building the foundation of the pier in the wate...

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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