Damping bridge support and preparation method

Abstract

The present invention discloses a damping bridge support, which structurally comprises a plurality of foam concrete layers, a steel plate layer is arranged between every two foam concrete layers. Thepreparation method includes following steps: feeding Portland cement, perlite, mineral powder, fly ash, a water reducing agent, basalt fibers, water and the like into a forced stirrer to be uniformlystirred; pouring the foam into a stirrer for stirring until the foam is stable, finally pouring the concrete slurry into a mold, placing a thin steel plate every time one layer of foam concrete is poured, and demolding and maintaining after pouring to obtain the shock-absorbing bridge support. The high-performance foam concrete is designed by selecting proper materials and proportion, the high-performance foam concrete and the thin steel plate are poured together to prepare the novel functionally gradient bridge support, the novel functionally gradient bridge support has the advantages of being light, high in strength, easy to manufacture and high in energy absorption, and the problems that a traditional support is large in dead weight, short in service life and poor in shock resistance and shock absorption performance are effectively solved.

Description

technical field [0001] The invention relates to a bridge component and its preparation, in particular to a shock-absorbing bridge support and its preparation method. Background technique [0002] The construction of bridges and other important infrastructure projects is facing the threat of high-risk strong earthquake disasters. Once an earthquake occurs, it will cause huge losses to people's lives and property. It is necessary to improve the earthquake resistance of bridges. In the bridge structure, the support is an important part connecting the superstructure and the substructure, which requires that the support must meet sufficient bearing capacity to ensure the safe and reliable transmission of the force of the superstructure to the substructure. At present, the commonly used rubber bearings often have problems such as air bubbles and flow caused by the high temperature of the road surface, which weakens the shock absorption effect of the bearings and cannot guarantee t...

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Problems solved by technology

[0003] Purpose of the invention: The purpose of the present invention is to provide a shock-absorbing bridge bearing and its preparation method to solve the problem that the shock resistance of existing rubber bearings is easily affected by high temperature, causing air bubbles to flow and weakening the damping effect of the bearing

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