我国高层建筑钢-混凝土混合结构发展与展望
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摘要
高层建筑钢-混凝土混合结构体系兼有钢结构和混凝土结构的优点。近年来,混合结构在我国高层及超高层建筑中得到了广泛的应用,但国内外对混合结构体系的抗震性能及设计中的一些关键技术问题尚有争议。对高层混合结构常用结构体系及工程应用实例等进行梳理,对混合结构的整体抗震性能、延性、构件设计、节点连接的可靠性、竖向变形差异、施工过程模拟、弹塑性时程分析、阻尼比等关键技术进行了讨论,并提出今后高层混合结构发展需进一步开展的研究工作。
Hybrid high-rise building structure has both the advantages of steel structure and concrete structure.Steel and concrete hybrid structures are widely used in China in recent years.However,different views exist related to the seismic behavior of hybrid structures and key design methodologies.This paper attempts to summarize various hybrid structure systems along with introduction of typical engineering examples.Key technical issues are discussed,including seismic behavior,ductility design,member design,the reliability of connections,difference in vertical deformation,construction analysis,nonlinear time-history analysis and damping ratio.Future research needs are also suggested.
Hybrid high-rise building structure has both the advantages of steel structure and concrete structure.Steel and concrete hybrid structures are widely used in China in recent years.However,different views exist related to the seismic behavior of hybrid structures and key design methodologies.This paper attempts to summarize various hybrid structure systems along with introduction of typical engineering examples.Key technical issues are discussed,including seismic behavior,ductility design,member design,the reliability of connections,difference in vertical deformation,construction analysis,nonlinear time-history analysis and damping ratio.Future research needs are also suggested.
引文
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[2]李国强,周向明,丁翔.高层建筑钢-混凝土混合结构模型模拟地震振动台试验研究[J].建筑结构学报,2001,22(2):2-7.(LI Guoqiang,ZHOU Xiangming,DING Xiang.Shaking table experimental study of steel-concrete hybrid structures for high-rise buildings[J].Journal of Building Structures,2001,22(2):2-7.(in Chinese))
[3]徐培福,薛彦涛,肖从真,等.高层型钢混凝土框筒混合结构抗震性能试验研究[J].建筑结构,2005,35(5):3-8.(Xu Peifu,Xue Yantao,Xiao Congzhen,et al.Experimental study on seismic performance of high-rise SRC hybrid structures[J].Building Structure,2005,35(5):3-8.(in Chinese))
[4]JGJ3—2002高层建筑混凝土结构技术规程[S].(JGJ3—2002Technical specification for concrete structures of tall building[S].(in Chinese))
[5]DJ/TJ08-015—2004高层建筑钢-混凝土混合结构设计规程[S].(DJ/TJ08-015—2004Code for design of steel-concrete hybrid structures for high-rise building[S].(in Chinese))
[6]徐培福,王翠坤,肖从真.中国高层建筑结构发展与展望[J].建筑结构,2009,39(9):28-32.(Xu Peifu,Wang Cuikun,Xiao Congzhen.Development and prospect of high-rise building structures in china[J].Building Structure,2009,39(9):28-32.(in Chinese))
[7]徐培福,傅学怡,王翠坤,等.复杂高层建筑结构设计[M].北京:中国建筑工业出版社,2005.(Xu Peifu,Fu xueyi,Wang Cuikun,et al.Design of complicated high-rise building structures[M].Beijing:China Architecture&Building Press,2005.(in Chinese))
[8]Russel HG,Larson S C.Thirteen years of deformations in water tower place[J].ACI Structure Journal,1989,86(2):182-191.
[9]闫锋,周建龙.超高层结构竖向变形及差异问题分析与处理[J]建筑结构,2007,36(5):100-103.(Yan Feng,Zhou Jianlong.Analysis and treatment of vertical deformation difference of super hign-rise building[J].Building Structure,2007,36(5):100-103.(in Chinese))
[10]JGJ99—98高层民用建筑钢结构技术规程[S].(JGJ99—98Technical specification for steel structure of tall buildings[S].(in Chinese))
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