Nonlinear dynamic simulations of progressive collapse for a multistory building

Leslaw Kwasniewski

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Nonlinear dynamic simulations of progressive collapse for a multistory building

机译：多层建筑渐进倒塌的非线性动力学模拟

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The paper presents a case study of progressive collapse analysis of a selected multistory building. The subject of the numerical study is an existing 8-story steel framed structure built for fire tests in the Cardington Large Building Test Facility, UK. The problem is investigated using nonlinear dynamic finite element simulations carried out following the GSA guidelines. The paper focuses on model development for global models subject to increasing vertical loading and notional column removal. Taking advantage of parallel processing on multiprocessor computers, a detailed 3D model with large number of finite elements has been developed for the entire structure. The objective of the presented feasibility study is to identify modeling parameters affecting the final result (potential of progressive collapse) and propose a hierarchical verification and validation program for reducing outcome uncertainties.

机译：本文介绍了对选定的多层建筑物进行渐进倒塌分析的案例研究。数值研究的主题是英国Cardington大型建筑测试设施中为防火测试而建造的现有8层钢框架结构。使用根据GSA准则进行的非线性动态有限元模拟研究了此问题。本文重点关注全局模型的模型开发，这些模型将承受垂直载荷和名义列移除量的增加。利用多处理器计算机上的并行处理优势，针对整个结构开发了具有大量有限元的详细3D模型。提出的可行性研究的目的是确定影响最终结果的模型参数（渐进性崩溃的可能性），并提出用于降低结果不确定性的分层验证和确认程序。

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来源
《Engineering Structures》 |2010年第5期|p.1223-1235|共13页
作者
Leslaw Kwasniewski;
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作者单位

Warsaw University of Technology, Al. Armii Ludowej 16, 00-637 Warszawa, Poland;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
progressive collapse; robustness; computer simulation; finite element model; cardington test; nonlinear transient dynamic analysis; verification; validation;

机译：逐渐崩溃健壮性计算机模拟;有限元模型卡丁顿测试非线性瞬态动力学分析验证;验证;

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8. Nature and Mechanism of Progressive Collapse in Industrialized Buildings. Report 3: Analytical Investigation of the Internal Load Distribution and the Mechanism of Progressive Collapse in Precast Concrete Large Panel Buildings [R] . Muskivitch, J. C. , Harris, H. G. 1981

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Nonlinear dynamic simulations of progressive collapse for a multistory building

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