Abstract The increasing interest in applying performance-based design to structures subject to severe wind has created the need for tools that can be used for the identification of appropriate probabilistic performance-based criteria for wind. This paper outlines the development of a framework to this end, which is based on describing safety against collapse through the occurrence of the state of dynamic shakedown. In particular, a formulation is introduced that enables the direct estimation of the inelastic strains and deformations occurring at shakedown for structural systems discretized through fiber-based distributed plasticity models and subject to stochastic wind loads. The efficiency of the proposed approach allows stochastic simulation to be employed in estimating the probability of system-level failure defined through general local and global limit states. A case study is presented illustrating how typical wind excited structural systems have significant plastic reserves that could be used in defining performance-based criteria for wind.

中文翻译：

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分布可塑性环境下非弹性风激结构的概率性能评估

摘要 将基于性能的设计应用于受强风影响的结构的兴趣日益增加，因此需要可用于识别适当的基于概率性能的风标准的工具。本文概述了为此目的开发的框架，该框架基于通过动态安定状态的发生来描述防止倒塌的安全性。特别是，引入了一种公式，可以直接估计结构系统在安定时发生的非弹性应变和变形，该结构系统通过基于纤维的分布式塑性模型离散并受到随机风载荷。所提出方法的效率允许采用随机模拟来估计通过一般局部和全局极限状态定义的系统级故障的概率。案例研究说明了典型的风激励结构系统如何具有可用于定义基于性能的风标准的显着塑性储备。