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Effects of various uncertainties on seismic risk of steel frame equipped with steel panel wall

机译：各种不确定性对配备钢板墙钢框架抗震风险的影响

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摘要

Probabilistic risk analysis is an effective tool for risk-informed decision-making related to the building facilities. All sources of the uncertainties should be considered in seismic risk assessment framework. Not only the levels of these uncertainties but also the effects on the performance of the buildings should be clearly identified. This paper aims to assess the impacts of the potential uncertainties on the seismic risk of steel frame equipped with steel panel wall (SPWF). Firstly, the performance limits of the SPWF structures are determined according to cyclic test results of two SPWF specimens. Then a validated numerical model of a 12-story SPWF building is modeled and used to perform the nonlinear time-history analysis, and the record-to-record uncertainty is identified by a set of ground motions derived from SAC project. Furthermore, comparisons are made on fragility curves for the building with or without considering the combining uncertainties in structural system, in defining performance limits and modeling technology. Finally, the annual probability and probability in 50years for each performance limit is calculated and compared. The impacts of such uncertainties on seismic risk of SPWF building are quantified for risk-informed evaluation of the SPWF buildings.
机译：概率风险分析是与建筑设施有关的风险明智的决策的有效工具。应在地震风险评估框架中考虑不确定性的所有来源。不仅应清楚地确定这些不确定性的水平，也是对建筑物性能的影响。本文旨在评估潜在的不确定性对配备钢板墙壁（SPWF）的钢架的地震风险的影响。首先，根据两个SPWF样本的循环测试结果确定SPWF结构的性能限制。然后建模并用于执行12层SPWF建筑的经过验证的数值模型，以执行非线性时间历史分析，并且通过源自SAC项目的一组地运动来识别记录到记录的不确定性。此外，在建筑物的脆弱曲线上进行比较，或者不考虑结构系统中的结构系统中的结合不确定性，在定义性能限制和建模技术方面。最后，计算并比较了每个性能限制50年的年度概率和概率。这种不确定性对SPWF建筑的地震风险的影响是对SPWF建筑物的风险信息评估量的量化。

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