【摘要】 苏宁广场塔楼地上88层,塔楼结构高度431 m。7度罕遇地震作用下,分析结构的弹性和弹塑性时程反应,得到结构在地震作用下的变形、内力和损伤情况。结果表明:结构在地震作用过程中构件塑性发展导致的结构刚度的变化;考虑了材料的弹塑性,结构最大层间位移角满足1/100的限值要求,连梁出现不同程度的损伤,大部分剪力墙混凝土受压损伤因子较小,结构满足大震不倒的设防要求。更多还原

【Abstract】 The 88-story Suning plaza tower is 431 meters to main structural roof above ground. Six rare seismic cases of intensity 7 were defined elastic and elasto-plastic analysis were conducted to get the structural displacements,member forces and wall damage. Elasto-plastic analysis can reveal the structural rigidity degradation caused by the member plastic deformation development. The elasto-plastic analysis results also show that the maximum story drift ratio is less than 1/100. Different damages are found in the spandrels. Most shear wall damage factors are small. The outrigger trusses,belt trusses and the steel plates in the steel plate walls do not yield. The tower structure can meet the requirements of no collapse under rare earthquake.更多还原