A bridge deck crane structure

Abstract

A bridge deck crane structure comprises a main crane structure, length-adjustable connection trusses, an oil cylinder adjustment system and a computer control system. The main crane structure comprises two groups of parallel spatial trusses or steel frame structures, adjacent cross bridges of the two groups of spatial trusses or steel frame structures are connected through the connection trusses, each group of the spatial trusses or the steel frame structures is provided with a group of oil cylinder adjusting systems, and the computer control system is connected with the oil cylinder adjusting systems to control the oil cylinder adjusting systems to synchronously or asynchronously perform push-pull operations along at least two dimension directions. The connection trusses can be adjusted in length to enable the bridge deck crane to suitable for different bridge widths. In addition, since each group of the spatial trusses or steel frame structures is provided with a group of oil cylinder adjusting systems, and the computer control system is respectively connected with the two groups of oil cylinder adjusting systems to control synchronous or asynchronous push-pull operations of the oil cylinder adjusting systems, multi-directional adjustment of girder segments can be realized by the bridge deck crane.

Description

technical field [0001] The invention belongs to the technical field of construction and relates to a bridge deck crane used in the hoisting and construction process of bridge girder sections. Background technique [0002] At present, in the construction of main girders of different types of bridge structures, more and more methods of hoisting and splicing main girders in sections are used. This construction method is convenient and fast, and saves the complicated and costly construction of supports. However, the current girder hoisting and splicing construction technology mainly refers to relying on the deck crane to lift the girder in the vertical direction. The crane does not take into account the translation of the girder in the transverse and longitudinal directions and the other three directions. rotate. In the actual construction process, due to the deviation of the positioning of the hoisting equipment, the beam section cannot be accurately docked with the built brid...

AI Technical Summary

Problems solved by technology

However, the current girder hoisting and splicing construction technology mainly refers to relying on the deck crane to lift the girder in the vertical direction. The crane does not take into account the translation of the girder in the transverse and longitudinal directions and the other three directions. to rotate

In the actual construction process, due to the deviation of the positioning of the hoisting equipment, the beam section cannot be accurately docked with the built bridge structure during hoisting, which affects the shape and force of the structure, and also affects the hoisting of the subsequent beam section

In addition, because the bridge widths of various bridges are inconsistent, ordinary deck cranes can only be used once and then have to be dismantled, resulting in a lot of waste

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