中国钢结构抗连续倒塌研究：回顾与展望

结构连续性倒塌作为一种连续扩散型的结构破坏模式,因其往往带来巨大的生命财产损失和严重的社会影响而备受重视。随着钢结构在高层巨型和空间大跨方向的飞速发展,开展相应的抗连续性倒塌研究具有相当重要的价值意义。通过对近15年中国专家学者在钢结构防连续倒塌领域研究成果的回顾,从灾害无关类与灾害相关类两大方面进行较全面的梳理,总结了相关静力、动力和灾害类试验的方法及进展,分析了数值模拟和理论计算、评估等研究的侧重点以及提升钢结构抗连续倒塌性能的有效措施,简要介绍了相关理论成果在实际工程中的应用现状,最后在此基础上对中国钢结构抗连续倒塌研究的发展趋势进行了展望。

The Domestic Research on Progressive Collapse Prevention of Steel Structures: Review and Prospect

As a kind of continuity and diffusive structure failure mode, structural progressive collapse has been paid attention to because it often brings huge loss of life, property and serious social impact. With the rapid development of steel structures towards the mega high rise and space large span direction, it has great value to carry out the corresponding research on the progressive collapse prevention. Based on a review of the research achievements of domestic scholars in the field of steel structural progressive collapse resistance in recent 15 years, The aspects of threat-dependent and threat-independent were sorted out. The methods and progress of static, dynamic and disaster experiment were summarized. At the same time, The emphases of numerical simulations and theoretical calculation evaluations and effective measures to improve the progressive collapse resistance of steel structures were analyzed, and the application status of relevant theoretical results in practical engineering were introduced. At last, The development trend of research on the progressive collapse prevention of steel structures in our country was prospected on this basis.