Self-resetting one-way sliding tensile support seat

Abstract

The invention relates to a self-resetting one-way sliding tensile support seat. The support seat comprises a lower support seat plate, a spherical sliding plate, a spherical crowning lining plate, anintermediate lining plate and an upper support seat plate, the bottom of the lower support seat plate is used for being welded and fixedly connected with a bridge pier, the spherical sliding plate ismounted on the upper portion of the lower support seat plate, the spherical crowning lining plate is mounted in the spherical sliding plate, the spherical crowning lining plate is slidable in the spherical sliding plate to meet the requirement of the large corner of a bridge, the lower side of the intermediate lining plate is located above the spherical crowning lining late, the upper side of theintermediate lining plate is located below the upper support seat plate, the upper support seat plate is used for being welded with a bridge body, the intermediate lining plate is fixed to a plate spring assembly in a bridge forward direction to ensure that the support seat slides to conduct self-resetting in the bridge forward direction, and the intermediate lining plate is fixed to a guide sliding strip in a cross bridge direction for guiding and constraint. Compared with the prior art, the support seat has the advantages of slip self-resetting, vertical tensile resistance, stable performance, low cost and the like.

Description

technical field [0001] The invention belongs to the technical field of bridge supports, in particular to a self-resetting one-way sliding tensile support. Background technique [0002] In recent years, due to cost effects such as environmental pollution, energy consumption, transportation costs and transportation safety caused by road transportation, it has also brought great challenges to the harmonious development of man and nature. In the future, my country's transportation strategy model will be "give priority to the development of railways and promote the coordinated development of railways and highways". It can be seen that the importance and universality of high-speed railway transportation are becoming more and more obvious. With the increasing development of high-speed railways, the application of bearings in bridges is essential, especially in the railway connections between oceans, lakes and mountainous areas. [0003] As far as the bridge is concerned, the suppo...

AI Technical Summary

Problems solved by technology

The plate-type rubber bearing produces compression deformation under the live load of the train. Compared with the basin-type rubber bearing, its cost is slightly lower, and it has the effect of reducing vibration and noise; while the basin-type rubber bearing is based on the plate-type rubber bearing The further improved rubber bearing has the characteristics of strong bearing capacity, large horizontal displacement, small friction coefficient, large rotation angle, and less steel; The overall rigidity of the lower structure of the bridge is low, and the additional stress of the rail under the action of the braking force is relatively large. Therefore, rubber bearings are generally only used under simply supported beams, and should be used in continuous beams of rail transit viaducts. cautious attitude

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