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: 0010112
• 负责人: Joel Conte
• 金额: $ 15万
• 依托单位: University of California-San Diego
• 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=0010112&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.

标题：合作研究：在基于绩效的地震工程师的非线性框架分析中不确定性的传播：这是一个合作研究项目，并要求单独的奖项，在科罗拉多大学博尔德大学的研究小组与加州大学的洛杉矶分校之间的研究团队之间。这项研究的目的是开发和实施一般方法，并在一组基准RC框架上进行测试。 授予的项目将在非线性框架分析中将最新技术与敏感性和可靠性分析中的最先进方法合并，以开发一种一般方法，以评估不确定性在强化混凝土建筑物对基于性能的工程的非线性动态分析中的传播影响。在研究中将考虑以下固有和认知不确定性的来源：（a）材料特性中的内在变异性/随机性； （b）“全局”地震学变量中的固有和认知不确定性（地震幅度m，位置到源距离R和局部位点状况S）； （c）地震加载历史上的内在变化/随机性； （d）建模与非线性RC框架模型和随机地震激发模型相关的不确定性。