A kind of polyurethane bridge shock-absorbing support and shock-absorbing method thereof

Abstract

The invention relates to a polyurethane bridge shock absorbing supporting base and a shock absorbing method thereof. The polyurethane bridge shock absorbing supporting base comprises an upper base plate assembly and a lower base plate assembly, the lower base plate assembly is composed of a sliding component and a supporting component, the upper base plate assembly is arranged over the lower base plate assembly, the sliding component achieves damping energy consumption through horizontal compression to have the horizontal damping function, the supporting component is tightly attached to a steel basin through vertical deformation of a bearing plate to have the vertical shock absorbing function, and deformation is limited by limit strength of the steel basin by means of exterior restraint of the steel basin; the supporting component serves as the horizontal sliding and rotating fulcrum of the supporting base and achieves horizontal shock absorption together with the sliding component.

Description

technical field [0001] The invention relates to a bridge support and a damping method thereof, in particular to a polyurethane high-speed railway bridge damping support and a damping method thereof, belonging to the technical field of bridge damping and isolation. Background technique [0002] The bridge support is an important force transmission device of the bridge. It is erected on the abutment, and the top surface supports the upper structure of the bridge, bears various forces of the upper structure and transmits the force to the abutment, and requires that under the action of various forces , the support can adapt to the rotation angle and displacement of the superstructure, so that the superstructure can be deformed freely without generating additional additional internal force, so the structure of the support is very important. The high-speed railway bridge has the following characteristics in use: the train speed is high, up to 350km / h, and the train density is high...

AI Technical Summary

Problems solved by technology

[0007] Although the above-mentioned patents all relate to bridge supports, and can also achieve the effect of shock absorption and isolation, they do not solve the problem that the size and space requirements of the bridge substructure are relatively large, resulting in high engineering cost of the bridge pier, so it needs to be improved.

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