Title: Dynamic Response Analysis of Vehicle-bridge System for Cable-stayed Bridge in Strong Windy Environment
Abstract: A computer simulation method of solving vehicle-bridge system vibration response considering wind load was presented based on mode integration theory.Vehicle model and fluctuating wind load model were established,corresponding vehicle stiffness and damping matrix were educed in the method.A practical cable-stayed bridge dynamic analysis was completed successfully by programming with abovementioned method.The result show that(1)wind load has a great influence on bridge vibration acceleration under low wind velocity;(2)bridge vertical displacement response is influenced evidently by wind load,and the lateral response is controlled by wind load;(3)vehicle vertical dynamic response and acceleration are influenced evidently by wind induced bridge vibration,and the lateral response is controlled by wind load and bridge response.The effect of wind load on vehicle-bridge system dynamic response is remarkable.For other type large span bridges,the method also can be referred for interrelated research.The accuracy of calculation is high enough for practical purposes.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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