高烈度地震区的错列双桁架钢结构住宅体系
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摘要
为适用于高烈度地震区的住宅建筑,提出了错列双桁架结构体系。在结构横向采用错列双桁架结构,双桁架两端与钢管混凝土双肢格构柱相连,简化了桁架弦杆与柱的连接,而且结构内部预留了设备管道的穿行空间,综合考虑了结构、建筑、设备的配合。针对一个13层错列双桁架结构,进行了竖向荷载和地震作用下的静力计算和时程分析。结果表明:错列双桁架结构体系不仅保留了传统错列桁架结构体系的优点,而且受力更加合理,结构纵横双向的抗侧刚度都可满足抵抗强震作用的需求。
To be suitable for residential housing in active seismic areas,a steel staggered twin-truss design was developed with simplified connections between the truss chords and the columns,which also simples installation of water and drainage and air-conditioner systems. A 13-story staggered twin-truss structure was designed with staggered twin-trusses in the transverse direction and concrete-filled steel tubular double-limb columns around the outside.The design was analyzed using static and the time history analyses with vertical loading and lateral earthquake loads.There is little material increase in mid-rise buildings with the staggered twin-truss system that resists lateral loads because it provides excellent lateral bracing both in the transverse and longitudinal directions.Therefore,the staggered twin-truss framing is appropriable for active seismic regions.
To be suitable for residential housing in active seismic areas,a steel staggered twin-truss design was developed with simplified connections between the truss chords and the columns,which also simples installation of water and drainage and air-conditioner systems. A 13-story staggered twin-truss structure was designed with staggered twin-trusses in the transverse direction and concrete-filled steel tubular double-limb columns around the outside.The design was analyzed using static and the time history analyses with vertical loading and lateral earthquake loads.There is little material increase in mid-rise buildings with the staggered twin-truss system that resists lateral loads because it provides excellent lateral bracing both in the transverse and longitudinal directions.Therefore,the staggered twin-truss framing is appropriable for active seismic regions.
引文
[1]WEXLER Neil,LIN Fengbao.Steel Design Guide 14:Staggered Truss Framing Systems[S].Chicago:AISC,2003.
[2]吴昶,张崇厚,叶桢翔.多层住宅错列桁架钢结构体系整体分析[J].建筑结构,2005(2):28-30.WU Chang,ZHANG Chonghou,YE Zhenxiang.Integrityanalysis on the staggered truss system applied in themulti-storied residence[J].Building Structure,2005(2):28-30.(in Chinese)
[3]莫涛,周绪红,刘永健,等.交错桁架结构体系的受力性能分析[J].建筑结构学报,2000(6):49-54.MO Tao,ZHOU Xuhong,LIU Yongjian,et al.Analysis ofthe load bearing behavior of staggered truss structure[J].JBuilding Struc,2000(6):49-54.(in Chinese)
[4]潘英,周绪红.交错桁架体系的抗震性能动力分析[J].土木工程学报,2002,35(4):12-16.PAN Ying,ZHOU Xuhong.Aseismic behavior of thestaggered truss system[J].Chin Civil Eng J,2002,35(4):12-16.(in Chinese)
[5]Habibullah A.Staggered Truss Framing Systems UsingETABS[M].California:Computers and Structures Inc,Berkeley,2003.
[6]韩林海.钢管混凝土结构[M].北京:科学出版社,2000.HAN Linhai.Concrete-filled Steel Tubular Structures[M].Beijing:Science Press,2000.(in Chinese)
[7]刘清.组合结构设计原理[M].重庆:重庆大学出版社,2002.LIU Qing.Principles of Composite Structure Design[M].Chongqing:Chongqing Univesity Press,2002.(in Chinese)
[2]吴昶,张崇厚,叶桢翔.多层住宅错列桁架钢结构体系整体分析[J].建筑结构,2005(2):28-30.WU Chang,ZHANG Chonghou,YE Zhenxiang.Integrityanalysis on the staggered truss system applied in themulti-storied residence[J].Building Structure,2005(2):28-30.(in Chinese)
[3]莫涛,周绪红,刘永健,等.交错桁架结构体系的受力性能分析[J].建筑结构学报,2000(6):49-54.MO Tao,ZHOU Xuhong,LIU Yongjian,et al.Analysis ofthe load bearing behavior of staggered truss structure[J].JBuilding Struc,2000(6):49-54.(in Chinese)
[4]潘英,周绪红.交错桁架体系的抗震性能动力分析[J].土木工程学报,2002,35(4):12-16.PAN Ying,ZHOU Xuhong.Aseismic behavior of thestaggered truss system[J].Chin Civil Eng J,2002,35(4):12-16.(in Chinese)
[5]Habibullah A.Staggered Truss Framing Systems UsingETABS[M].California:Computers and Structures Inc,Berkeley,2003.
[6]韩林海.钢管混凝土结构[M].北京:科学出版社,2000.HAN Linhai.Concrete-filled Steel Tubular Structures[M].Beijing:Science Press,2000.(in Chinese)
[7]刘清.组合结构设计原理[M].重庆:重庆大学出版社,2002.LIU Qing.Principles of Composite Structure Design[M].Chongqing:Chongqing Univesity Press,2002.(in Chinese)
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