大震下高层型钢混凝土结构弹塑性分析
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摘要
为研究钢-混凝土高层混合结构在大震下的抗震性能,对某实际型钢-混凝土高层建筑进行了动力弹塑性分析。运用三维有限元分析程序CANNY06,得出了结构在大震下的内力和变形规律,并与静力弹塑性分析结果进行对比。研究推覆分析是否适用于评价混合结构的抗震性能。研究钢-混凝土组合楼盖在大震下的工作性。结果表明:静力推覆分析不一定能满足“大震不倒”的抗震设防要求;当结构高宽比大于3时,组合楼盖在弹塑性阶段仍可按刚性楼盖考虑,而且高宽比越大,简化带来的误差越小。
The seismic behavior of a tall steel reinforced concrete(SRC) structure was analyzed using dynamic elastoplastic analysis.The CANNY06(a 3-D nonlinear static and dynamic structural analysis program) was used.The internal forces and deformations,including shear forces,overturning moments,lateral displacements,and drifts,were compared with those of a static elastoplastic analysis to evaluate the effectiveness of the pushover analysis.The behavior of the composite floor slab during the earthquake was also analyzed.The results show that the pushover analysis can not accurately predict whether a structure will resist major earthquake ground motions without collapse,and the rigid floor slab assumption for the composite floor slab is suitable for the structure height-width ratio greater than 3 with larger height-width ratios resulting in smaller errors.
The seismic behavior of a tall steel reinforced concrete(SRC) structure was analyzed using dynamic elastoplastic analysis.The CANNY06(a 3-D nonlinear static and dynamic structural analysis program) was used.The internal forces and deformations,including shear forces,overturning moments,lateral displacements,and drifts,were compared with those of a static elastoplastic analysis to evaluate the effectiveness of the pushover analysis.The behavior of the composite floor slab during the earthquake was also analyzed.The results show that the pushover analysis can not accurately predict whether a structure will resist major earthquake ground motions without collapse,and the rigid floor slab assumption for the composite floor slab is suitable for the structure height-width ratio greater than 3 with larger height-width ratios resulting in smaller errors.
引文
[1]JGJ 3-2002.高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2002:29-32.JGJ 3-2002.Technical Specification for Concrete Structuresof Tall Building[S].Beijing:China Architecture&BuildingPress,2002:29-32.(in Chinese)
[2]刘大海,杨翠如.型钢钢管混凝土高楼计算和构造[M].北京:中国建筑工业出版社,2003:35-83.LIU Dahai,YANG Cuiru.Calculation and Details of SRC&CFRT Tall Buildings[M].Beijing:China Architecture&Building Press,2003:35-83.(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 SRChybrid structures[J].Building Structure,2005,35(5):3-8.(in Chinese)
[4]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,2005:392-416.XU Peifu,FU Xueyi,WANG Cuikun,et al.StructuralDesign of Complex Tall Buildings[M].Beijing:ChinaArchitecture&Building Press,2005:392-416.(inChinese)
[5]龚治国,吕西林,卢文胜,等.混合结构体系高层建筑模拟地震振动台试验研究[J].地震工程与工程振动,2004,24(4):99-105.GONG Zhiguo,LU Xilin,LU Wensheng,et al.Shakingtable model test of a hybrid high-rise building structure[J].Earthquake Engineering and Engineering Vibration,2004,24(4):99-105.(in Chinese)
[6]吕西林,邹昀,卢文胜,等.上海环球金融中心大厦结构模型振动台抗震试验[J].地震工程与工程振动,2004,24(3):57-63.LU Xilin,ZOU Yun,LU Wensheng,et al.Experimentalstudy on shanghai world financial center[J].EarthquakeEngineering and Engineering Vibration,2004,24(3):57-63.(in Chinese)
[7]Li Kangning.CANNY06 Users Manual[Z].Singapore:Canny Consultants Pte Ltd,2006.
[8]包世华,方鄂华.高层建筑结构设计[M].北京:清华大学出版社,2000:56-70.BAO Shihua,FANG Ehua.Design of Tall Building Structure[M].Beijing:Press of Tsinghua University,2000:56-70.(in Chinese)
[9]GB 50011-2001.建筑抗震设计规范[S].北京:中国建筑工业出版社,2001:27-40.GB 50011-2001.Code for Seismic Design of Buildings[S].Beijing:China Architecture&Building Press,2001:27-40.(in Chinese)
[2]刘大海,杨翠如.型钢钢管混凝土高楼计算和构造[M].北京:中国建筑工业出版社,2003:35-83.LIU Dahai,YANG Cuiru.Calculation and Details of SRC&CFRT Tall Buildings[M].Beijing:China Architecture&Building Press,2003:35-83.(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 SRChybrid structures[J].Building Structure,2005,35(5):3-8.(in Chinese)
[4]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,2005:392-416.XU Peifu,FU Xueyi,WANG Cuikun,et al.StructuralDesign of Complex Tall Buildings[M].Beijing:ChinaArchitecture&Building Press,2005:392-416.(inChinese)
[5]龚治国,吕西林,卢文胜,等.混合结构体系高层建筑模拟地震振动台试验研究[J].地震工程与工程振动,2004,24(4):99-105.GONG Zhiguo,LU Xilin,LU Wensheng,et al.Shakingtable model test of a hybrid high-rise building structure[J].Earthquake Engineering and Engineering Vibration,2004,24(4):99-105.(in Chinese)
[6]吕西林,邹昀,卢文胜,等.上海环球金融中心大厦结构模型振动台抗震试验[J].地震工程与工程振动,2004,24(3):57-63.LU Xilin,ZOU Yun,LU Wensheng,et al.Experimentalstudy on shanghai world financial center[J].EarthquakeEngineering and Engineering Vibration,2004,24(3):57-63.(in Chinese)
[7]Li Kangning.CANNY06 Users Manual[Z].Singapore:Canny Consultants Pte Ltd,2006.
[8]包世华,方鄂华.高层建筑结构设计[M].北京:清华大学出版社,2000:56-70.BAO Shihua,FANG Ehua.Design of Tall Building Structure[M].Beijing:Press of Tsinghua University,2000:56-70.(in Chinese)
[9]GB 50011-2001.建筑抗震设计规范[S].北京:中国建筑工业出版社,2001:27-40.GB 50011-2001.Code for Seismic Design of Buildings[S].Beijing:China Architecture&Building Press,2001:27-40.(in Chinese)
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