摘要
参考美国国防部编制的《结构抗连续倒塌设计》(DOD2005)提供的设计流程,采用变换荷载路径方法,基于SAP2000通用有限元软件,对按照我国现行规范设计的4层混凝土框架结构首层长边中柱失效,分别采用4种方法:线性静力分析方法、非线性静力分析方法、线性动力分析方法和非线性动力分析方法进行分析,对移柱前后关键构件的内力变化进行了分析,给出分析步骤,并对每种方法的优缺点进行了比较.
Since the collapse of the Ronan Point Tower in United Kingdom in 1968,the structural engineering profession has become more concerned with the phenomena of progressive collapse.Europe and American have researched on this issue for nearly 40 years and developed relevant design codes guides.However,codes in china have not yet proposed in detail on the resistance of progressive collapse.Hence,A typical Chinese 4-story reinforced concrete frame building with the failure of long side column designed according to the current design code is analyzed with alternate path method,using the finite element analysis software SAP2000 through four analytical methods,including liner-elastic static,nonlinear static,linear-elastic dynamic and nonlinear dynamic methodologies.The internal forces of the critical elements before and after the removal of the column are compared.Additionally,each method is thoroughly investigated and common shortcomings are identified,along with advantages and disadvantages.
出处
《武汉理工大学学报（交通科学与工程版）》
2012年第2期341-345,共5页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
