Abstract The multi-hazard effects on multi-story steel buildings equipped with energy dissipative passive vibration response control devices are investigated for their performance under earthquake- and wind-induced forces. The passive response control devices include steel bracings, viscous, and viscoelastic dampers. The buildings without and with the passive control devices are modeled as multi-degree of freedom (M-DOF) systems, with the seismic masses lumped at each floor level. The governing differential equations of motion for the uncontrolled and controlled buildings are solved by using Newmark’s time integration approach. The dynamic response quantities are compared in terms of statistical distribution, which include the statistics of top floor acceleration, inter-storey drift, column base shear, and top floor displacement, for the uncontrolled and controlled buildings subjected to earthquake- and wind-induced forces. Conditional probabilities of failure are determined by overlapping the probability density function curves and conducting fragility analysis through cumulative distribution function curves to assess the effectiveness of the control devices against the natural hazards. It is observed that the design of the passive control devices employing additional damping may account for the performance of the structures under the multi-hazard scenario. Moreover, the variability in either of the demands affects the failure probability of the passively controlled structures extensively. Therefore, the probability of failure for a structure experiencing high-amplitude seismic hazard and a maximum wind speed within the critical frequency band during the design life varies largely for different damper schemes, which calls upon careful selection for design of a structure considering such multi-hazard scenario.

中文翻译：

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地震和风多灾害情景下安装被动控制装置的钢结构建筑概率评估

摘要 研究了装有耗能被动振动响应控制装置的多层钢结构建筑在地震和风致力作用下的多灾害效应。被动响应控制装置包括钢支撑、粘性和粘弹性阻尼器。没有和有无源控制设备的建筑物被建模为多自由度 (M-DOF) 系统，每个楼层都集中了地震质量。使用 Newmark 的时间积分方法求解不受控制和受控建筑物的控制运动微分方程。动力响应量按统计分布进行比较，包括顶层加速度、层间漂移、柱底剪力和顶层位移的统计，用于承受地震和风致力的不受控制和受控制的建筑物。通过重叠概率密度函数曲线并通过累积分布函数曲线进行脆弱性分析来确定故障的条件概率，以评估控制装置对抗自然灾害的有效性。据观察，采用附加阻尼的被动控制装置的设计可以解释多灾种情况下结构的性能。此外，任何一种需求的变化都会广泛影响被动控制结构的失效概率。所以，