结构抗连续倒塌设计方法的研究

Study on Design Method to Resist Progressive Collapse for Structure

由于爆炸、恐怖袭击等事件导致结构连续性倒塌事故频繁发生,建筑结构抗连续倒塌研究日益受到土木工程界的关注。本文介绍了连续倒塌的评价准则和荷载组合方式,并且对各国规范的设计方法进行总结。介绍了概念设计法、拉结构件法、拆除构件法和关键构件法的原理、特点及其适用范围,并对这几种设计方法进行比较,最后,提出了其他国家的设计方法应用于我国工程需要研究和注意的问题。

As for the explosion, terrorist attacks and otheraccidents, the structural progressive collapse occurred frequently.The study on resisting progressive collapse for building structuresare growing concerned by many scholars and specialists incivil engineering. The progressive collapse of the evaluation criteriaand the load combinations, and the design method fromother countries 5 specification are introduced in this paper. Theprinciples about the resisting progressive collapse of many countriesare summarized. Meanwhile, the characteristics and scopeof conceptual design method, pull - member method, alternatepath method and critical element method, and some of these designmethods are compared. The problems need to make furtherresearch are put forward when the design methods of other countriesare applied in our country.