The analysis of the impact coefficient of Bridge with response spectrum

Abstract

Paper presented at the 23rd Annual Southern African Transport Conference 12 - 15 July 2004 "Getting recognition for the importance of transport", CSIR International Convention Centre, Pretoria, South Africa. This paper describes a new approach to calculate impact coefficients by analyzing the relation between vehicle’s impact force on bridge and dynamic charateristics of vehicle and bridge, the plainness of bridge surface. The analysis is performed in the framework of computational structural mechanics and stochastic process theory. Authors illustrate with examples how such new approach can be applied, with comparisons made between the new approach and two existing methodologies of calculating impact coefficient: one that had been widely adopted by Chinese Design Code of Bridge and Culvert, and another that was used in the Canadian Quebec Design Code of Bridge and Culvert.