Reinforced concrete (RC) shear walls play an important role as the seismic resisting system in tall buildings. Yet, assessing the seismic damage of real-world shear walls remains a challenging task. In this study, a damage index that relies on the vibration data measured by the sensors embedded in the structure is proposed to evaluate the damage condition of shear walls. The damage index is formed by the linear combination of two normalized terms, which, respectively, characterize the peak and the cumulative damages of the shear walls with little knowledge of real-life structural hysteresis. The damage tracking and evaluation based on the substructure level and the story level are discussed. The damage indices evaluated using the hysteretic loops made by the shear and bending information of the shear wall are further compared. The feasibility of the proposed damage index is examined using a numerically simulated 12-story coupled shear wall structure. It is then applied to analyze the experiments regarding the damage condition of RC shear walls under earthquakes. Results show that the proposed damage index can track the damage states of RC shear walls under seismic excitations. Analysis suggests that the proposed damage index could trace and distinguish the progression of shear and flexural damages, which potentially supports the post-earthquake structural safety management.

中文翻译：

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使用监测数据对地震激励的 RC 剪力墙进行损伤跟踪和基于滞后的评估

钢筋混凝土（RC）剪力墙作为高层建筑的抗震系统发挥着重要作用。然而，评估现实世界剪力墙的地震损伤仍然是一项具有挑战性的任务。在这项研究中，提出了一种依赖于嵌入结构中的传感器测量的振动数据的损伤指数来评估剪力墙的损伤状况。损伤指数由两个归一化项的线性组合形成，它们分别表征剪力墙的峰值和累积损伤，而对现实生活中的结构滞后知之甚少。讨论了基于子结构层和层层的损伤跟踪与评估。进一步比较了剪力墙剪力和弯曲信息所形成的滞回线评估的损伤指数。使用数值模拟的 12 层耦合剪力墙结构检验了所提出的损坏指数的可行性。然后应用该方法对RC剪力墙在地震作用下的破坏情况进行试验分析。结果表明，所提出的损伤指数可以追踪地震作用下钢筋混凝土剪力墙的损伤状态。分析表明，所提出的损伤指数可以追踪和区分剪切和弯曲损伤的进展，这可能为震后结构安全管理提供支持。