Method for designing flexion restraining support of maintenance-free steel and composite material

Abstract

The invention discloses a method for designing a flexion restraining support of maintenance-free steel and a composite material. The method includes following steps: step 1, determining the sectional area of an inner core stressing unit of the novel flexion restraining support of the maintenance-free steel and the composite material according to structural inner force analysis; step2, calculating the yield load of the inner core stressing unit of the novel flexion restraining support of the maintenance-free steel and the composite material and the ultimate load of the flexion restraining support; step3, determining the sectional dimension of a GFRP restraining unit; step4, determining the form and the size of an expansion joint; and step5, calculating support connection segments according to the ultimate load of the flexion restraining support. The flexion restraining support of the maintenance-free steel and the composite material can be designed flexiblely as needed, and on the basis that the support is guaranteed to achieve mechanism, the support is of both integrity and tightness. Besides, the method is convenient, simple in structure, and fine in performance.

Description

technical field [0001] The invention belongs to the technical field of buckling restraint supports, in particular to a design method for maintenance-free steel-composite material buckling restraint supports. Background technique [0002] Japan and the United States are countries that carried out research on structural control systems earlier. The complete member of the buckling-restrained brace first appeared in Japan. [0003] The United States began to apply this kind of support in engineering after the Northridge earthquake, and it was called Buckling restrained Brace (BRB for short) according to the mechanical characteristics of the support. Although the research in the United States was relatively late, it developed rapidly relying on its economic and technological advantages. , since 1998, in Utah, Oregon, California and other regions in their high-intensity earthquake areas, buckling-constrained braces have been used in many new constructions and seismic reinforcement ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a design method for maintenance-free steel-composite material buckling-restrained braces, aiming to solve the problems of buckling-restrained braces as an efficient and economical shock absorber on steel tower structures and bridge structures. The problem of lack of research and application

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