论文部分内容阅读
将结构整体变形和构件变形作为双重控制指标,提出了罕遇地震作用下结构的安全性评估方法,对按GB 50011—2010《建筑抗震设计规范》设计的典型框架-剪力墙结构在罕遇地震作用下的安全性进行评估。结果表明:以层间位移角作为大震性能评估的唯一标准存在不足,结构的最大层间位移角与结构构件损伤没有直接关系,统计得出框架-剪力墙结构首层层间位移角限值为1/200;引入长周期反应谱影响系数以考虑地震波反应谱形状的影响,并给出建议影响系数取值为0.9~1.05;Ⅱ类~Ⅳ类场地土中7度及7.5度抗震设防的模型均满足安全性要求,8度设防出现个别模型不满足安全性要求。
The overall structural deformation and component deformation as a dual control index, put forward a rare earthquakes under the effect of structural safety assessment methods, according to GB 50011-2010 “Code for seismic design of buildings” typical framework - shear wall structure in the rare case Earthquake safety assessment. The results show that there is not enough criterion to evaluate the performance of large-scale earthquake with the displacement angle between layers. The maximum inter-story drift angle is not directly related to the damage of the structural members. The displacement angle of the first floor of the frame-shear wall structure is obtained The value is 1/200; the influence coefficient of the long-period response spectrum is introduced to consider the shape of the response spectrum of the seismic wave, and the suggested influence coefficient is 0.9 to 1.05; and the seismicity of 7 degrees and 7.5 degrees in the soil of the type Ⅱ to Ⅳ site Of the models meet the safety requirements, 8 degrees fortification appeared individual model does not meet the safety requirements.