Collaborative Research: Propagation of Uncertainties in Nonlinear Frame Analysis of RC Buildings for Performance-Based Seismic Engineering

合作研究：基于性能的抗震工程 RC 建筑非线性框架分析中的不确定性传播

• 批准号: 0010131
• 负责人: Enrico Spacone
• 金额: $ 15万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-10-01 至 2005-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0010131&HistoricalAwards=false
• 关键词: Collaborative; Research; Propagation; Uncertainties; Nonlinear

Title: Collaborative Research: Propagation of Uncertainties in Nonlinear Frame Analysis of RCBuildings for Performance-Based Seismic EngineeringSummary: This is a collaborative research project, with separate awards requested, between research teams at the University of Colorado at Boulder and the University of California at Los Angeles. The purpose of this research is to develop and implement the general methodology and to test it on a set of benchmark RC frames. The awarded project will merge state-of-the-art techniques in nonlinear frame analysis with state-of-the-art methods in sensitivity and reliability analysis to develop a general methodology for assessing the effects of propagation of uncertainties in nonlinear dynamic analyses of reinforced concrete buildings for performance-based engineering. The following sources of inherent and epistemic uncertainties will be considered in the study: (a) intrinsic variabilities/randomness in the material properties; (b) inherent and epistemic uncertainties in the "global" seismological variables (earthquake magnitude M, site-to-source distance R, and local site condition S); (c) intrinsic variabilities/randomness in the earthquake loading history; and (d) modeling uncertainties associated with the nonlinear RC frame models and the stochastic earthquake excitation model.

职务名称：合作研究：基于性能的抗震工程RC建筑物非线性框架分析中不稳定性的传播摘要：这是一个合作研究项目，要求在博尔德的科罗拉多大学和洛杉矶的加州大学的研究小组之间获得单独的奖励。本研究的目的是开发和实施的一般方法，并测试它的一组基准钢筋混凝土框架。 该项目将把非线性框架分析中的最先进技术与灵敏度和可靠性分析中的最先进方法相结合，以开发一种通用方法，用于评估钢筋混凝土建筑物非线性动力分析中不确定性传播的影响。本研究将考虑以下固有和认识上的不确定性来源：（a）材料特性的固有可变性/随机性;（B）“全球”地震学变量的固有和认识上的不确定性（地震震级M、场地-震源距离R和当地场地条件S）;（c）地震荷载历史中的内在变异性/随机性;以及（d）与非线性RC框架模型和随机地震激励模型相关的建模不确定性。