Device and method for polishing and coating arch ribs of concrete-filled steel tube arch bridge

Abstract

The invention discloses a device and method for polishing and coating arch ribs of a concrete-filled steel tube arch bridge, and relates to the technical field of bridge construction equipment. The device comprises a clamping and fixing assembly, a driving assembly, a walking assembly, two derusting and polishing assemblies and two anti-corrosion coating assemblies, wherein the clamping and fixingassembly comprises at least two pairs of clamps and connecting rods; each connecting rod is connected with the adjacent clamper; the driving assembly is connected with the two clampers in the same pair and is used for driving one of the clampers to rotate around the other clamper; the walking assembly is used for driving the clamping and fixing assembly to move along the arch ribs; the two derusting and polishing assemblies are arranged on the two clampers on different sides respectively and comprise a plurality of crawler-type polishing devices; the crawler-type polishing devices are used for polishing the arch ribs; and the two anti-corrosion coating assemblies are arranged on the two clampers and are used for coating the arch ribs. By means of the device and the method, the arch ribs can be derusted and coated, and potential safety hazard existing in manual operation is avoided.

Description

technical field [0001] The invention relates to the technical field of bridge construction equipment, in particular to a grinding and coating device and a grinding and coating method for arch ribs of steel tube concrete arch bridges. Background technique [0002] Concrete-filled steel tube arch bridge is a kind of steel-concrete composite structure. It is filled with concrete in the steel tube. Because the radial constraint of the steel tube restricts the expansion of the compressed concrete, the concrete is in a three-dimensional compression state, thereby significantly improving the concrete. Compressive strength; the steel pipe has the functions of longitudinal main reinforcement and horizontal hoop, and can be used as a construction formwork to facilitate concrete pouring. During the construction process, the steel pipe can be used as a rigid load-bearing skeleton. The welding work is simple and the hoisting weight is light, which can simplify the construction. process a...

AI Technical Summary

Problems solved by technology

The arch ribs of long-span concrete-filled steel tube arch bridges are used in concrete-filled steel tube arch bridges. The span and height of the arch ribs are large, and the maintenance and construction are difficult; especially for some urban rail transit bridges, railway bridges or expressway bridges, the construction time is strict, and the construction measures are subject to Restricted, and the construction safety hazard is relatively large

In addition, if manual derusting and coating methods are used, it will face the risk of working at heights, and the coating thickness is difficult to control

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