Assembled bridge support

Abstract

The invention belongs to the field of bridge supports, and particularly relates to an assembled bridge support which comprises a top plate. A top connecting rod is fixedly connected to the upper surface of the top plate, the outer surface of the top connecting rod makes contact with the inner surface of the bridge, and a main supporting mechanism is arranged at the bottom of the top connecting rod. According to the assembled bridge support, by arranging the limiting mechanism, when the main supporting mechanism and the auxiliary supporting mechanism retract, a push-pull rod downwards extrudes the upper surface of a pressing plate, the pressing plate increases the contact area between the bottom of the support and the top of a pier and increases friction force, a fixing pin is vertically embedded into the pier, and the axial stability is improved, an inclined rod is obliquely and downwards inserted into the pier through the action of a pushing-pulling rod; when an axial pressure is reduced, the inclined rods move upwards in an inclined mode, the clamping jaws abut against the interior of the pier, the springback amplitude of the support is reduced, meanwhile, the axial and radial stability of the support is improved, and the problems that when the internal pressure of a traditional bridge support is too large, springback is prone to occurring, and therefore, the structural stability of the support is influenced.

Description

technical field [0001] The invention belongs to the field of bridge supports, in particular to an assembled bridge support. Background technique [0002] Bridge bearings are important structural components connecting the bridge superstructure and substructure. It can reliably transmit the reaction force and deformation (displacement and rotation angle) of the bridge superstructure to the bridge substructure, so that the actual stress of the structure is consistent with the calculated theoretical diagram. [0003] The rubber sliding plate inside the traditional pot-type rubber bearing will experience a very obvious problem of uneven force after repeated friction loss, which will lead to a decrease in the energy absorption efficiency of the internal rubber plate. For excessive external loads, the rubber plate cannot As a buffer, the internal steel structure of the support is prone to brittle fracture, and the excessive external load is transmitted to the pier through the supp...

AI Technical Summary

Problems solved by technology

[0003] The rubber sliding plate inside the traditional pot-type rubber bearing will experience a very obvious problem of uneven force after repeated friction loss, which will lead to a decrease in the energy absorption efficiency of the internal rubber plate. For excessive external loads, the rubber plate cannot As a buffer, the internal steel structure of the support is prone to brittle fracture, and the excessive external load is transmitted to the pier through the support, and the pier will transmit the reverse support force, and the two forces collide with each other to form a rebound, which will affect Structural stability of bearings and bridges

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