Sliding lifting device and method for arc decorative plate of building steel structure bridge

Abstract

The invention discloses a sliding lifting device and method for an arc decorative plate of a building steel structure bridge, and belongs to the technical field of engineering construction. Each steelrail structure comprises a main steel frame, a steel frame base, a back groove frame and a sliding plate, wherein the main steel frame is a concave channel steel frame; expansion bolts for assembly are arranged at the upper end and the lower end of the main steel frame in a penetrating mode; the sliding plate is embedded on the front face of the main steel frame; two welding plates are symmetrically arranged on the front face of the sliding plate; strip-shaped screw hole grooves are formed in the surfaces of the welding plates; and a twisted wire groove is formed in the middle of the inner side of the sliding plate. According to the device and the method, the steel rail structures matched with the steel structure bridge are utilized, then the initial installation of the sliding lifting device is convenient, meanwhile, the structure strength of the steel structure bridge is utilized to laterally reinforce the structure of the device, and then the stability of the structure during construction is guaranteed; and meanwhile, a bracket structure is light and stable, the arc decorative plate required to be installed is convenient to carry, and a sliding system is utilized to carry out longitudinal sliding lifting, so that the construction process is stable and reliable, the safety is high, and the applicability of the device is improved to a certain extent.

Description

technical field [0001] The invention relates to the technical field of engineering construction, in particular to a sliding lifting device and method for a curved decorative plate of a building steel structure bridge. Background technique [0002] When the traditional slip lifting device and method are applied to the construction of steel structure bridges, there are the following deficiencies: [0003] 1. For the construction of decorative panels of traditional steel structure bridges, large-scale hoisting and hoisting machinery are usually installed at the bottom of the bridge, or traction machinery is installed on the bridge surface, and methods such as manual hoisting and engineering devices are used for construction. The on-site construction is mostly affected by the bridge The strength of the foundation, the limitation of the fragile riverbed and the limitation of the narrow road at the lower end of the bridge make it impossible to apply large-scale hoisting machinery....

AI Technical Summary

Problems solved by technology

[0003]1. For the construction of decorative panels for traditional steel structure bridges, large-scale hoisting and hoisting machinery are usually installed at the bottom of the bridge, or traction machinery is installed on the bridge surface, and hoisting is dependent on manpower, etc. methods and engineering devices to carry out construction. The site construction is mostly limited by the strength of the bridge foundation, the fragile river bed and the narrow road at the lower end of the bridge, which makes it impossible for large-scale hoisting machinery to be used. impact and hoisting height, resulting in difficult and dangerous construction operations;

[0004]2. If large-scale hoisting machinery is used for the construction device and method of decorative panels of traditional steel structure bridges, the initial installation time of the machinery will affect the construction efficiency. If the bridge deck hoisting method is used , affected by the difficulty of operation and assembly difficulty, the construction efficiency is greatly reduced;

The construction methods of the existing technology are mostly limited by the construction environment around the bridge, and the initial installation is time-consuming and laborious, and the construction efficiency is low. Its scope of application is limited, and the feasibility of bridge construction is also limited to a certain extent.

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