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山东退役微堆运输容器起吊架为高架型钢结构,为分析其是否具有抗震能力,对其进行了抗震分析。使用ANSYS软件进行结构模态分析,有限元模型主要采用8节点三维壳单元SHELL93,起重机采用质量单元MASS21模拟。使用兰索斯方法提取出原始结构前13阶模态振型(表1),其主要模态振型为水平摆动或扭动,说明结构沿水平方向的振动比较强烈。结果说明,模态振型分布与装置的结构特点和质量分布非常吻合。抗震计算采用单点反应谱法进行,使用增添或加厚钢板的方法进行结构优化,并且优化方案可
Shandong retired micro-stack container cranes for the elevated steel structure, in order to analyze whether it has seismic capacity, its seismic analysis. Using ANSYS software for structural modal analysis, the finite element model mainly uses 8-node three-dimensional shell element SHELL93, and the crane adopts mass element MASS21 simulation. The first 13 orders of mode shapes (Table 1) of the original structure were extracted using the Lansos method. The main mode shapes were horizontal swinging or twisting, which indicated that the vibration of the structure along the horizontal direction was relatively strong. The results show that the distribution of mode shapes is in good agreement with the structural characteristics and mass distribution of the device. Aseismic calculations using single-point response spectrum method, the use of additional or thickening plate method for structural optimization, and optimization programs can be