作　　者： ; ; (崔济东）; (韩小雷）;

机构地区： 华南理工大学土木与交通学院

出　　处： 《建筑结构学报》 2015年第S2期62-69,共8页

摘　　要： 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。 Using both the structural and component deformations as main indicators,the paper proposes a safety assessment approach of the structure under rare earthquakes. Based on the approach,the safety of typical frame-shear wall structures designed according to the ‘Code for seismic design of buildings'( GB 50011—2010) was assessed.The results show that: the disadvantages of using inter-story drift as the only parameter for the safety assessment under rare earthquake exist,as there is no direct relationship between the maximum inter-story drift and the structural component damages. Meanwhile,It's suggested that 1 /200 be set as the reference limit for the inter-story drift at the first floor for frame-shear wall structures; the long-period response spectra impact coefficient is introduced to consider the influence of the shape of seismic response spectrum,and it is suggested to take values between 0. 9 and 1. 05; For the site soil Ⅱ ~ Ⅳ,the models with the seismic fortification intensity of degrees 7 and 7. 5 meet the safety requirements. However a few models with the seismic fortification intensity of degree 8 do not meet the safety requirements.

关 键 词： 框架 剪力墙结构 构件变形 抗震安全性评估 层间位移角 长周期反应谱影响系数

领　　域： [建筑科学] [建筑科学]