期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：242
期号：3
页码：1-7
DOI：10.1088/1755-1315/242/3/032068
出版社：IOP Publishing
摘要：In order to take the protection provided by existing structures into account, Protection Factor was introduced to revise the method for calculating collision probability in the Guide Specification for Vessel Collision Design of River-Crossing Bridges in Three Gorges Reservoir of Chongqing City. This revised method was utilized to calculate the annual frequency of collision and collapse of Urban Rail Transit Egongyan Bridge at present, in the short term and long term, considering the influence of the relative location of nearby existing bridge with the same span layout. The results indicate that when the existing bridge is assumed to be located upstream, the annual frequency of collision and collapse both decreases significantly. The revised method presented in this paper offers a reference for probability analysis of vessel collision for bridges protected by existing structures nearby.
