Assembly type pre-pressing spherical hinge damping device

Abstract

The invention provides an assembly type pre-pressing spherical hinge damping device which comprises a damping tenon and a force transmission cylinder, wherein the damping tenon comprises a rubber layer, a tenon body and a flange ball socket, one end of the tenon body is provided with a ball head, the outer surface of the ball head is fixedly wrapped with the rubber layer, the flange ball socket is provided with a spherical cavity used for containing the ball head and the rubber layer, the rubber layer is in contact with the inner wall of the spherical cavity to form a spherical friction pair, and the force transmission cylinder is movably arranged on the flange ball socket in a sleeving mode. According to the assembly type pre-pressing spherical hinge damping device, decoupling of the vertical damping function and the horizontal damping function is conveniently achieved, a statically indeterminate structure with the two ends fixedly connected can be changed into a statically indeterminate structure with one end fixedly connected and the other end hinged according to the bending moment borne by the spherical head, and the horizontal rigidity and the hysteretic energy dissipation capacity of the metal soft steel damping tenon are improved.

Description

Technical field [0001] The present invention relates to the field of shock absorbing techniques, and more particularly to an assembled preload ball hinge type shock absorbing device. Background technique [0002] In the global public infrastructure system, large cross-bridges bear an increasingly important role. Especially in the historical alpine canyon zone, such as China's southwest, designers usually use large spheries of slave slor bridges, suspension beam bridges, arch bridges, etc. [0003] Decidial shock technology has been recognized as an ideal measures to improve the seismic performance of the bridge. Among them, the metal soft steel damper can produce plastic deformation absorption seismic energy by rapid access, thereby reducing seismic response. Due to its convenient processing, the energy consumption mechanism is clear, the energy consumption performance is superior, which can be used alone, and can be used in combination with other isolation systems, which is wide...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an assembled preloaded spherical hinge type shock absorber, which aims to solve the problem that the existing shock absorber tenons are difficult to meet the normal use and earthquake resistance requirements of long-span bridges or railway bridges in high-intensity areas; the assembly of the present invention The preloaded spherical hinge type shock absorber conveniently realizes the decoupling of the vertical and horizontal shock absorbing functions, and improves the horizontal stiffness and hysteretic energy dissipation capacity of the metal mild steel shock absorber. The specific technical scheme is as follows:

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