摘要
木结构存在着耐火性和稳定性差等结构安全问题,同时对于木结构的抗连续倒塌问题也应在设计中进行考虑。结合已有的成果,对木结构连续倒塌的案例、当前所用的理论、试验、数值模拟及设计方法作出总结评述。通过对几个具有代表性案例的分析,总结了其倒塌的原因和经验教训;从理论方面讨论了木结构自身冗余、鲁棒性、木材延性与抗连续倒塌的关系;从试验研究上,介绍国外的木结构抗连续倒塌试验结果;从设计标准数值模拟方面,从木结构的有限元模拟和离散元模拟两方面展开讨论;从设计方法方面,结合标准从目前4种设计方法进行论述。最后对木结构连续倒塌的发展趋势进行了展望。
Structure safety problems（such as fire resistance,stability,etc） exist in timber structure,and the resist progressive collapse of timber structure also should be took serious considered in structure design. This paper summarized the cases of timber structure ’s progressive collapse, standard comparison, the researches and developments of the current theories and experiments. As for theories study,the relationships of the progressive collapse of timber structure with redundancy,robustness and ductility are discussed. The paper also summarize overseas experiment studies of the progressive collapse. What ’s more,it also concerned about the numerical simulation and design method of timber structure. Finally,the development trend of progressive collapse of timber structure was discussed.
作者
张晋
章东昊
蔡建国
宗钟凌
Zhang Jin Zhang Donghao Cai Jianguo Zong Zhongling(Key Lab of Concrete and Prestressed Concrete Structures of China Ministry of Education, Southeast Univ Nanjing 210096, China School of Civil Engineering, Huaihai Institute of Technology, Lianyungang 222005, China)
出处
《工业建筑》
CSCD
北大核心
2016年第12期116-122,共7页
Industrial Construction
基金
国家自然科学基金项目(51178115)
江苏省自然科学基金项目(BK2012239)
关键词
木结构
连续倒塌
研究现状
理论研究
试验研究
数值模拟
设计方法
timber structure
progressive collapse
research status
theoretical research
experimental research
numerical simulation
design method
