摘要
对位于9度区的某高层钢结构住宅,分别采用中美欧三种抗震设计规范来进行设计,比较不同规范下的基底剪力、层间位移角、用钢量等指标。结果表明:三种规范在相同地震动参数下,美标与欧标对应的基底剪力要低于中国规范模型对应结果,同时美欧对层间位移角的控制较松,最终在美标设计下用钢量最省,欧标设计下其次,中国规范模型用钢量最大。根据动力弹塑性分析结果,中国规范模型的弹塑性层间位移角最小,美欧模型的弹塑性层间位移角偏大,三个模型的最大弹塑性层间角均能满足1/50限值要求。
For the purpose of illustrating the main differences in structural seismic design between GB50011,ASCE7 and EC8,a comparative analysis was conducted based on the high-rise steel structure residence located in the 9 degree earthquake zone,including results such as seismic base shear,story drift and steel consumption.The study shows that the base shear corresponding to ASCE7 and EC8 under the same earthquake hazard is relatively small and approximately the same.In the meantime,the control of story shift according to ASCE7 and EC8 is loose.According to the order of the amount of steel consumption from least to most,the order is ASCE7,EC8,GB50011.According to the dynamic elastic-plastic analysis result,the elastic-plastic story drift is minimum,the elastic-plastic story drift is larger,and the maximum elastic-plastic story drift can meet the requirement of 1/50 limit.
作者
周耀彬
吴方忠
付波
孙浩
ZHOU Yaobin;WU Fangzhong;FU Bo;SUN Hao(TongMSK Hangzhou Steel Structure Design Co.,Ltd.,Hangzhou 311215,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S01期789-793,共5页
Building Structure
基金
住房和城乡建设部研究开发项目(2020-K-113,2020-K-117)
关键词
强震区
钢结构住宅
抗震设计
用钢量
动力弹塑性
meizoseismal areas
steel structure residence
seismic design
steel consumption
dynamic elastic-plastic analysis
