Resilience assessment and optimization method of city road network in the post-earthquake emergency period

IF 2.6 2区工程技术 Q2 ENGINEERING, CIVIL Earthquake Engineering and Engineering Vibration Pub Date : 2024-05-18 DOI:10.1007/s11803-024-2254-8

Haoran Wang, Jia Xiao, Shuang Li, Changhai Zhai

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Abstract

The post-earthquake emergency period, which is a sensitive time segment just after an event, mainly focuses on saving life and restoring social order. To improve the seismic resilience of city road networks, a resilience evaluation method used in the post-earthquake emergency period is proposed. The road seismic damage index of a city road network can consider the influence of roads, bridges and buildings along the roads, etc. on road capacity after an earthquake. A function index for a city road network is developed, which reflects the connectivity, redundancy, traffic demand and traffic function of the network. An optimization model for improving the road repair order in the post-earthquake emergency period is also developed according to the resilience evaluation, to enable decision support for city emergency management and achieve the best seismic resilience of the city road network. The optimization model is applied to a city road network and the results illustrate the feasibility of the resilience evaluation and optimization method for a city road network in the post-earthquake emergency period.

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震后应急期城市路网的弹性评估与优化方法

震后应急期是事件发生后的敏感时期，主要以抢救生命和恢复社会秩序为主。为提高城市道路网的抗震能力，提出了一种用于震后应急期的抗震能力评价方法。城市路网的道路震损指数可以考虑道路、桥梁和道路沿线建筑物等对震后道路通行能力的影响。建立了反映城市路网连通性、冗余性、交通需求和交通功能的城市路网功能指数。同时，根据抗震能力评估结果，建立了改善震后应急期道路修复秩序的优化模型，为城市应急管理提供决策支持，实现城市道路网络的最佳抗震能力。将该优化模型应用于城市道路网，结果表明了震后应急时期城市道路网抗震性评估和优化方法的可行性。

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来源期刊

Earthquake Engineering and Engineering Vibration 工程技术-工程：地质

CiteScore

4.70

自引率

21.40%

发文量

1057

审稿时长

9 months

期刊介绍： Earthquake Engineering and Engineering Vibration is an international journal sponsored by the Institute of Engineering Mechanics (IEM), China Earthquake Administration in cooperation with the Multidisciplinary Center for Earthquake Engineering Research (MCEER), and State University of New York at Buffalo. It promotes scientific exchange between Chinese and foreign scientists and engineers, to improve the theory and practice of earthquake hazards mitigation, preparedness, and recovery. The journal focuses on earthquake engineering in all aspects, including seismology, tsunamis, ground motion characteristics, soil and foundation dynamics, wave propagation, probabilistic and deterministic methods of dynamic analysis, behavior of structures, and methods for earthquake resistant design and retrofit of structures that are germane to practicing engineers. It includes seismic code requirements, as well as supplemental energy dissipation, base isolation, and structural control.