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为研究工业建筑的抗倒塌性能,并探索采用较为合理、准确的本构关系及柱失效时长控制。本文以实际工业通廊为依托,基于GSA2003规定为抗连续倒塌判断准则,利用有限元软件ABAQUS中梁单元对钢框架进行模拟,利用分层壳单元对钢筋混凝土楼板进行模拟,采用备用荷载路径法对结构进行非线性动力分析。以道路旁典型柱失效为研究工况,分析通廊典型柱失效后的抗倒塌性能,以及对剩余结构的内力影响。通过分析可知,在未考虑汽车撞击荷载而只考虑柱失效对剩余结构的影响时,关键柱失效后剩余结构出现内力重分布现象,结构并未发生倒塌。
In order to study the anti-collapse performance of industrial buildings and to explore the use of more reasonable and accurate constitutive relations and column failure duration control. Based on GSA2003, which is the criterion of continuous collapse prevention, the paper uses the finite element software ABAQUS girder element to simulate the steel frame, and uses the layered shell element to simulate the reinforced concrete floor. The method of backup load path Nonlinear dynamic analysis of the structure. Taking the failure of the typical column beside the road as the research condition, the anti-collapse performance of the typical column after the failure of the corridor is analyzed, and the internal forces of the remaining structure are analyzed. Through analysis, we can see that when the impact of column failure on the remaining structure is not considered, the remaining structure after the failure of the key column appears the redistribution of internal forces, and the structure does not collapse.