Study on the Probabilities of Vessel-Bridge Collision Considering the Influence of Existing Structures

4th International Conference on Energy Equipment Science and Engineering

Wei, Sisi^1^2 ; Li, Songlin^1^2

China Merchants Chongqing Communications Research and Design Institute Co.Ltd., Chongqing

400067, China^1

State Key Laboratory of Bridge Engineering Structural Dynamics, Chongqing

400067, China^2

关键词: Chongqing cities;    Collision probability;    Existing structure;    Guide specifications;    Probability analysis;    Relative location;    Three gorges reservoir;    Urban rail transit;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/242/3/032068/pdf
DOI  :  10.1088/1755-1315/242/3/032068

来源: IOP

【 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.