美国建筑规范中的抗震结构体系简介  

Introduction of seismic force resisting system in American building code

作　　者：唐文卿 张树生[1] 尹鹏[1] 罗云龙[1] 周明[1] 

机构地区：[1]中冶长天国际工程有限责任公司土建分院,长沙410007

出　　处：《工程建设》2016年第4期24-31,共8页Engineering Construction

摘　　要：通过对美国规范ASCE/SEI 7《Minimum Design Loads for Buildings and Other Structures》中抗震结构体系(SFRS)和地震设计动参数的取值、ACI 318《Building Code Requirements for Structural Concrete and Commentary》和ANSI/AISC 341《Seismic Provisions for Structural Steel Buildings》对钢筋混凝土结构和钢结构抗震体系中抗震措施具体要求的分析,表明延性设计和"高延性-低弹性承载力"或"低延性-高弹性承载力"都是美国抗震设计的基本思路。设计选择何种抗震结构体系,关系着结构承受地震作用的大小、抗震措施的复杂难易以及工程造价。简述了ASCE/SEI 7结构体系地震动参数的取值,并与中国规范在地震作用、混合结构方面作简要对比。Through introduction and analyses of seismic force resisting system and selection of dynamic parameters of seismic design in the American standard《Minimum Design Loads for Buildings and Other Structures》（ ASCE/SEI）,and specific requirements for seismic measures of reinforced concrete structure and steel structure in 《Building Code Requirements for Structural Concrete and Commentary》（ ACI 318） and《Seismic Provisions for Structural Steel Buildings》（ ANSI/AISC 341）,it shows that the ductility design,＂high ductility and low elasticity bearing capacity＂or ＂low ductility and high elasticity bearing capacity＂are all the basic ideas throughout the American seismic design.Choosing which kind of seismic force resisting system in the design has relation to the size of seismic action on the structure,the complexity of seismic measures and engineering cost. The selection of the ground motion parameters of the ASCE/SEI 7 structure system was described briefly and it is compared briefly with Chinese code in terms of seismic action and composite structure.

关 键 词：抗震设计 抗震结构体系 美国规范 ASCE/SEI 7 ACI 318 ANSI/AISC 341 

分 类 号：TU352.1[建筑科学—结构工程]