In this paper, ABAQUS is used to analyze the two adjacent columns of a reinforced concrete frame structure, the finite element model of three different working conditions is established based on the measured data, and the results are compared with the data collected from the field. It can be concluded that the two base frames of the structure basement are damaged in the actual works. Meanwhile the linear static demolition method is applied to remove the destruction of the two frame columns in order to analyze the anti-collapse of overall structure. The analysis shows that after the accident, the axial force of the adjacent column is increased, but the structure resist the occurrence of structure collapse by the internal force redistribution of the remaining components, and there is no damage, and the frame shear structure still has a certain ability of anti-collapse after the failure of the key column. This paper presents the corresponding accident treatment plan considering the research results, which also provides suggestions for the analysis and processing of similar types of engineering accidents.%采用ABAQUS软件对某钢筋混凝土框架结构底层相邻的二根柱发生破坏后进行有限元分析,基于实测数据建立 三个不同工况的有限元模型,通过分析结果和现场采集的数据结果进行对比,得出实际工程中结构地下室受到破坏的两根框 架柱基本失效的结论.同时采用线性静力拆除法移除破坏的二根框架柱,对整体结构进行抗倒塌分析.分析结果表明:事故 发生后,相邻区域框架柱轴力增大,但结构通过其余构件的内力重分配抵抗结构倒塌的发生,没有出现破坏,该框剪结构关键 柱失效后仍具有一定的抗倒塌能力.本文基于研究结果提出了相应事故处理方案,为相近类型的工程事故的分析与处理提 供了参考建议.
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