CFRP cloth reinforced structure of steel pipe intersecting joints of steel truss bridge

Abstract

The invention discloses a CFRP cloth reinforcing structure of steel truss bridge steel tube tubular joints. The CFRP cloth reinforcing structure comprises a GFRP cloth covering layer covering the outer side of the tubular joints and CFRP cloth covering layers covering the outer side of the GFRP cloth covering layer, and the inner surface and the outer surface of the GFRP cloth covering layer and the inner surfaces and the outer surfaces of the CFRP cloth covering layers are coated with adhesive glue coatings. The number of the CFRP cloth covering layers is one or more than one, the CFRP cloth covering layers coat the outer side of the GFRP cloth covering layer from inside to outside, the GFRP cloth covering layer and the tubular joints required to be reinforced are adhered through adhesive glue, the CFRP cloth covering layers and the GFRP cloth covering layer are adhered through adhesive glue, and the adjacent CFRP cloth covering layers are adhered through adhesive glue. The CFRP cloth reinforcing structure is simple, reasonable in design, convenient to construct and good in reinforcing effect, and the problems that an existing tubular joint reinforcing method is complex in actual operation and poor in reinforcing effect, and the strength and stability of the bridge structure are influenced can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of bridge reinforcement, and in particular relates to a CFRP cloth reinforcement structure for intersecting joints of steel pipes of a steel truss bridge. Background technique [0002] The steel pipe structure has many advantages in use due to its cross-sectional characteristics, especially in the aspects of axial compression, full-section torsion and bending in all directions. In recent years, with the development of multi-dimensional CNC cutting technology, the manufacturing process of intersecting wire cutting has been improved, and problems such as difficulties in groove processing have been solved. Under this premise, steel pipe intersecting joints show many advantages, such as simple and clear appearance, no protruding joint parts, which makes the connection of secondary components convenient, no need to add steel for joints, etc., so it is gradually widely used in pedestrian bridges In the steel trus...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a CFRP fabric reinforcement structure for intersecting joints of steel pipes in steel truss bridges, which has a simple structure, reasonable design, convenient construction, good reinforcement effect, and can effectively solve the above-mentioned deficiencies in the prior art. Existing intersecting joint reinforcement methods have problems such as complex practical operation, poor reinforcement effect, and affecting the strength and stability of bridge structures.

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