论文部分内容阅读
采用NOSACAD对西宁市某大空间楼板大开洞结构进行弹塑性动力时程分析,研究该结构在7度罕遇地震作用下的抗震性能。通过顶点位移、层间位移角、基底剪力等指标考察结构的整体反应,并研究该结构的损伤情况。分析结果表明:在所选三条时程曲线作用下,主要结构构件损坏顺序和损坏分布较为合理,且能在一定程度上耗散地震波输入能量,整体结构各项指标均能满足规范要求,分析结果对评价结构的可靠性有一定意义。
NOSACAD is used to analyze the elasto-plastic dynamic time-history of a large open floor slab structure in a large space in Xining City, and the seismic performance of the structure under the action of a rare earthquaking of seven degrees is studied. The global response of the structure was investigated by the displacement of vertex, the displacement angle between layers and the base shear force, and the damage of the structure was also studied. The results show that under the selected three time history curves, the damage order and damage distribution of the main structural components are more reasonable, and the input energy of the seismic waves can be dissipated to a certain extent, and all the indexes of the overall structure can meet the requirements of the specification. The analysis results To evaluate the reliability of the structure of some significance.