China Safety Science Journal ›› 2022, Vol. 32 ›› Issue (8): 176-184.doi: 10.16265/j.cnki.issn1003-3033.2022.08.1457

Previous Articles     Next Articles

Resilience assessment of highway bridge networks subjected to both earthquakes and earthquake-induced secondary emergencies

LIU Zhenliang1,2,3(), YUAN Wei4, LI Suchao2,3,5   

  1. 1 School of Safety Engineering and Emergency Management, Shijiazhuang Tiedao University,Shijiazhuang Hebei 050043, China
    2 Key Laboratory of Large Structure Health Monitoring and Control, Shijiazhuang Hebei 050043, China
    3 Key Lab of Structures Dynamic Behavior and Control of China Ministry of Education, School of Civil Engineering, Harbin Institute of Technology, Harbin Heilongjiang 150090, China
    4 School of Civil Engineering and Architecture, Jiangsu Open University, Nanjing Jiangsu 210036, China
    5 School of Civil Engineering, Harbin Institute of Technology (Weihai), Weihai Shandong 264209, China
  • Received:2022-03-13 Revised:2022-05-16 Online:2022-09-05 Published:2023-02-28


In order to clarify the effects of earthquakes and EISE on resilience of highway bridge networks, a resilience analysis method was proposed, which considered factors like regional seismic hazards, characteristics of EISE, structural fragility of bridges and traffic characteristics, etc. Subsequently, response mechanism to EISE was analyzed, based on which EISE influence model on highway bridge network was established, and a method to analyze the network state under influence of both earthquakes and EISE was proposed. Finally, several resilience indexes were developed, and verification was conducted on a highway bridge network in San Francisco, California subjected to both earthquakes and EISE effect. The results show that compared with individual bridges, the performance of bridge network was influenced by interaction between earthquake motion and EISE, including not only the intensity, but also locations of earthquakes. And the proposed methodology can assess resilience of bridge networks against EIES.

Key words: earthquake, earthquake-induced secondary emergencies(EISE), highway bridge network, resilience assessment, seismic fragility