胡延明翻译中期开题报告订正.docVIP

. . 毕业设计(论文)外文资料翻译 系 别： 建筑工程系 专 业： 土木工程 班 级： B090701 姓 名： 胡延明 学 号： 外文出处： 中国学术前沿期刊网 附 件： 1. 原文； 2. 译文 2013年01月05日 原文： Methods for Progressive Collapse Analysis of Building?Structures Under Blast and Impact Loads Abstract： Progressive collapse of building structures under blast and impact loads has attracted great attention all over the world．Progressive collapse analysis is essential for an economic and safe design of building structures against progressive collapse to blast and impact loads. Because of the catastrophic nature of progressive collapse and the potentially high cost of constructing or retrofitting buildings to resist it，it is imperative that the progressive collapse analysis methods be reliable. For engineers their methodology to carry out progressive collapse uation need not only be accurate and concise，but also be easily used and works fast．Thus，many researchers have been spending lots of effort in developing reliable，efficient and straightforward progressive collapse analysis methods recently. In the present paper，current progressive collapse analysis methods available in the literature are reviewed．Their suitability applicability and reliability are discussed．Our recent proposed new method for progressive collapse analysis of reinforced concrete frames under blast loads is also introduced． Keywords： progressive collapse analysis；building structures；blast load：impact load ??? Progressive collapse is defined as“the spread of an initial local failure from element to element resulting in the collapse of an entire structure or a disproportionately large part of it”. It refers to the failure of one or a group of key structural load—carrying members that give rise to a more widespread failure of th