摘要
按照规范设计的建筑结构通常采用概念设计及构造措施满足结构安全,无法对结构的抗倒塌安全储备进行定量的分析。通过对不同抗震等级及场地类别的框架-剪力墙结构进行动力时程分析,得到按照规范设计并贴近规范限值的结构具有的不同的抗倒塌安全储备系数:7度及7. 5度的结构有较高的抗倒塌安全储备系数,该安全储备系数处于1. 2～1. 4之间,8度区的抗倒塌安全储备系数较小。该系数对于按照规范设计的框架-剪力墙结构抗大震的能力储备给出了定量的结果,可以有效把握结构的抗倒塌性能,为实际工程设计提供安全度参考。
Structures designed by the codes are usually adopted conceptual design and constructional measures to meet the structural safety,but there is no quantitative analysis of the collapse resistance safety reserve of the structure. On the basis of dynamic time history analysis of frame shear wall structures with different seismic grade and site type,the different collapse resistant safety reserve coefficients are obtained for those designed according to code and close to the code limit value: the structures of 7 degree or 7. 5 degree have high safety reserves about 1. 2 to 1. 4. The safety reserves of 8 degree is small. With the coefficient,it helps to get the quantitative collapse resistant capacity result of frame-shear wall structure designed according to code and grasp the collapse resistance of structure effectively,and provides safety reference for practical engineering design.
作者
肖新瑜
季静
Xiao Xin-yu;Ji Jing(Guangzhou College of South China University of Technology,Guangzhou 510813,China;State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China)
出处
《工程抗震与加固改造》
北大核心
2018年第5期29-34,81,共7页
Earthquake Resistant Engineering and Retrofitting
关键词
框架-剪力墙结构
增量时程分析
抗倒塌安全储备系数
frame-shear wall structure
incremental time history analysis
collapse resistant safety reserve coefficient
