Journal of South China University of Technology(Natural Science Edition) ›› 2019, Vol. 47 ›› Issue (6): 108-118.doi: 10.12141/j.issn.1000-565X.180575

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Evaluation Method of Bridge Risk Probability in Vehicle Fire Accidents

ZHANG Xiaodong MA Rujin CHEN Airong   

  1. Department of Bridge Engineering，Tongji University，Shanghai 200092，China 
  • Received:2018-11-21 Revised:2019-01-20 Online:2019-06-25 Published:2019-05-05
  • Contact: 马如进(1978-)，男，博士，副研究员，博士生导师，主要从事桥梁养护管理理论、桥梁造型、计算机视觉研究． E-mail:rjma@tongji.edu.cn
  • About author:张晓栋(1986-)，男，博士生，主要从事桥梁事故鉴定研究． E-mail:394554680@ qq． com
  • Supported by:
    Supported by the Science and Technology Major Project of Guizhou Province(［2016］3013) 

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Abstract: Based on the vulnerability analysis and the hazard analysis，a numerical calculation method for risk probability of bridge exposed to fires caused by vehicles was developed． According to the statistical data of vehicle fire accidents，the probability density function of maxim heat release rate was estimated using the principle of maxi- mum entropy． A vulnerability analysis method of bridge member based on RSM-MCS was proposed，and a vulner- ability analysis method of structural system was given by the research about structural system，correlation and dam- age criterion of system． The risk probability of a simply supported beam bridge under fires caused by vehicles was provided to illustrate the method． The results show that the suggested method can effectively evaluate the fire resist- ance of a bridge．

Key words: fire, risk probability, vulnerability, maximum entropy principle

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