考虑恢复过程的桥梁抗震韧性评估方法

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振动与冲击 ›› 2025, Vol. 44 ›› Issue (7) : 132-145.

土木工程

考虑恢复过程的桥梁抗震韧性评估方法

李廷辉1，2，3，刘金龙*4，5，李晓丽1，2，3，王燕1，2，3，计静1，2，3

作者信息 +

Aseismic resilience evaluation method of bridge considering recovery process

LI Tinghui1,2,3, LIU Jinlong*4,5, LI Xiaoli1,2,3, WANG Yan1,2,3, JI Jing1,2,3

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文章历史 +

摘要

提出了一种考虑恢复过程的混凝土桥梁结构抗震概率韧性评估方法，该方法基于暴露在恶劣环境下的混凝土结构生命周期分析的一般方法，以各破坏状态下的时变抗震能力作为功能指标，将灾害发生后残余功能和恢复过程与地震事件发生的时间联系起来。通过对时变桥梁易损性模型进行抽样获得桥梁地震破坏样本，结合时变功能指标，采用遗传算法（GA）解决资源约束调度问题（RCPSP），给出了桥梁震后的具体恢复过程，最终得到了桥梁结构服役期间的抗震韧性。结果发现，当不考虑时变功能时，计算得到的桥梁抗震韧性要明显大于考虑时变功能计算得到的抗震韧性，这样会高估桥梁抵抗地震灾害及从中恢复的能力，不利于震后恢复工作的展开。选取的控制时间（th-t0）要合理，如果使控制时间（th-t0）过小，计算得到的桥梁抗震韧性普遍为0，此时就不能很好的表达桥梁的抗震韧性。

Abstract

Based on the general method of life cycle analysis of concrete structures exposed to harsh environment, this method takes the time-varying seismic capability of each failure state as the functional index, and connects the residual function and recovery process after the disaster with the time of the earthquake event. By sampling the time-varying bridge fragility model to obtain the bridge earthquake failure samples, combined with the time-varying function index, the genetic algorithm is used to solve the resource-constrained project scheduling problem, the specific recovery process of the bridge after the earthquake is given, and finally the seismic resilience of the bridge during service is obtained. The results show that when the time-varying function is not considered, the calculated seismic resilience of the bridge is significantly greater than that of the bridge considering the time-varying function, which will overestimate the ability of the bridge to resist and recover from the earthquake, which is not conducive to the development of the post-earthquake restoration work. The selected control time (th-t0) should be reasonable. If the control time (th-t0) is too small, the calculated seismic resilience of the bridge is zero universally, and the seismic resilience of the bridge cannot be well express.

导出引用

李廷辉1, 2, 3, 刘金龙4, 5, 李晓丽1, 2, 3, 王燕1, 2, 3, 计静1, 2, 3. 考虑恢复过程的桥梁抗震韧性评估方法[J]. 振动与冲击, 2025, 44(7): 132-145

LI Tinghui1, 2, 3, LIU Jinlong4, 5, LI Xiaoli1, 2, 3, WANG Yan1, 2, 3, JI Jing1, 2, 3. Aseismic resilience evaluation method of bridge considering recovery process[J]. Journal of Vibration and Shock, 2025, 44(7): 132-145

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