双塔连体复杂结构抗震性能数值分析
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摘要
针对双塔连体复杂高层结构,结合ABAQUS强大的非线性求解能力,通过SATWE建立结构分析模型导入ABAQUS中进行弹塑性动力数值模拟分析。所研究工程采用不等高的主、副双塔,副塔立面一侧成斜线向上扩张,刚度和质量均不对称,超出国家现行设计规范和规程规定。选用修正的弹塑性损伤本构模型在ABAQUS中二次开发,地震波采用上海某人工波SHW2,得到结构在7度多遇和罕遇地震作用下的破坏模式和内力、变形情况。将计算结果和振动台试验数据进行比较,结果表明:采用修正的本构模型在ABAQUS软件中的分析结果与振动台试验结果在结构自振频率、振型形态、最大楼层位移、顶层位移时程等方面符合较好,为双塔连体类型的复杂高层结构在地震作用下的受力状态和反应特点提供了一种行之有效的弹塑性数值模拟方法。
Owing to the powerful ability for the nonlinear analysis of structures,the ABAQUS software is adopted to analyze the elastic-plastic dynamic performance for a partial double-tower connected building under the effect of earthquake.The structural analysis model of the building is established by SATWE(Space Analysis of Tall-Buildings with Wall-Element) software,and is extracted to the ABAQUS by a conversion interface.The selected building is comprised by two unequal towers,and is connected on the upper part.The vertical side of the vice-tower is designed to expand to its top with diagonal style,which leads to the dissymmetry stiffness and quality,and beyond the current national design codes.Based on the modified elastic-plastic model developed in ABAQUS,the deformations,internal forces and damage patters of the building under the frequent and rate intensity of 7 degree earthquake are analyzed by inputting an artificial simulation seismic wave(named SHW2).Comparing with the shaking table test,the computing results show that the time history of the natural frequency,mode shapes and maximum floor displacements of the building are closed to the test results of shaking table.From the paper,it also provides an effective elastic-plastic numerical simulation method for analysis of the response characteristics and damage patters of double-tower complex connected high-rise building under the effect of earthquake.
Owing to the powerful ability for the nonlinear analysis of structures,the ABAQUS software is adopted to analyze the elastic-plastic dynamic performance for a partial double-tower connected building under the effect of earthquake.The structural analysis model of the building is established by SATWE(Space Analysis of Tall-Buildings with Wall-Element) software,and is extracted to the ABAQUS by a conversion interface.The selected building is comprised by two unequal towers,and is connected on the upper part.The vertical side of the vice-tower is designed to expand to its top with diagonal style,which leads to the dissymmetry stiffness and quality,and beyond the current national design codes.Based on the modified elastic-plastic model developed in ABAQUS,the deformations,internal forces and damage patters of the building under the frequent and rate intensity of 7 degree earthquake are analyzed by inputting an artificial simulation seismic wave(named SHW2).Comparing with the shaking table test,the computing results show that the time history of the natural frequency,mode shapes and maximum floor displacements of the building are closed to the test results of shaking table.From the paper,it also provides an effective elastic-plastic numerical simulation method for analysis of the response characteristics and damage patters of double-tower complex connected high-rise building under the effect of earthquake.
引文
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[6]严敏,张家华,芮明倬,等.非对称门式双塔连体超高层结构计算分析[J].建筑结构,2008,38(12):84～86 Yan Min,Zhang Jia-hua,Rui Ming-zhuo,et al.Structural Analysis of Asymmetrical Triumphal Arch Type Twin-tower Skyscraper[J].Building Structure,2008,38(12):84～86(in Chinese)
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[8]郭彦林,霍轶力.CCTV新台址主楼抗震性能研究[J].建筑结构学报,2008,29(3):10～23 Guo Yan-lin,Huo Yi-li.Analysis on Earthquake Response and Aseismic Load-carrying Capability of New CCTV Building[J].Journal of Building Structures,2008,29(3):10～23(in Chinese)
[9]郭彦林,霍轶力,盛和太.CCTV新台址主楼SRC柱抗震计算模型的建立[J].建筑结构学报,2008,29(3):54～62 Guo Yan-lin,Huo Yi-li,Sheng He-tai.Modeling for Seismic Analysis of SRC columns in New CCTV Building[J].Journal of Building Structures,2008,29(3):54～62(in Chinese)
[10]高巍,郭彦林.CCTV新台址主楼外筒“米”形节点滞回性能数值研究[J].建筑结构学报,2008,29(3):73～81 Gao Wei,Cou Yan-lin.Numerical Studies of Complex Connections in the External Tube System of New CCTV Building[J].Journal of Building Structures,2008,29(3):73～81(in Chinese)
[11]黄志华,吕西林,周颖,等.双塔连体结构的模拟地震振动台模型试验研究[J].建筑结构学报,2009,30(5):31～38 Huang Zhi-hua,Lv Xi-lin,Zhou Ying,et al.Shaking Table Model test of a Multi-tower Connected Structure[J].Journal of Building Structures,2009,30(5):31～38
[12]何志军,丁洁民,吴宏磊,等.上海国际设计中心不对称双塔连体结构设计研究[J].建筑结构,2008,38(9):47～51 He Zhi-jun,Ding Jie-min,Wu Hong-lei.Design of Asymmetry Double-tower Connected Structure of Shanghai International Design Center[J].Building Structure,2008,38(9):47～51(in Chinese)
[13]顾云磊,钱江.复杂连体高层建筑结构抗震性能计算分析研究[J].结构工程师,2011,27(1):85～92 Gu Yun-lei,Qian Jiang.Research on Seismic Performance of a Complex High-rise Building with Connected Structure[J].Structural Engineers,2011,27(1):85～92(in Chinese)
[14]JGJ2-2002,高层建筑混凝土结构技术规程[S]JGJ2-2002,Technical Specification for Concrete Structures of Tall Building[S](in Chinese)
[15]齐虎,李云贵,吕西林.箍筋约束混凝土的单轴力学性能研究[J].建筑结构,2011,41(1):79～82 Qi Hu,Li Yun-gui,Lv Xi-lin.Study of Uniaxial Mechanical Behavior of Concrete Confined with Hoops[J].Building Structure,2011,41(1):79～82
[16]齐虎,李云贵,吕西林.混凝土弹塑性本构实用模型研究[J].建筑科学,2011,27(1):33～38 Qi Hu,Li Yun-gui,Lv Xi-lin.Study on ConcreteElasto-Plastic Practical Constitutive Model[J].Building Science,2011,27(1):33～38(in Chinese)
[17]Qi Hu,Li Yun-gui,Lv Xi-lin.An Elastic Plastic Viscous-damage Model for Concrete Considering StrainRate Effect and Application[A].The 3rd International Conference on Computational Intelligence and Industrial Application[C].Wuhan,China,December 4～5,2010:146～151
[2]吕西林复杂高层建筑结构抗震理论与应用[M].北京:科学出版社,2007:12～31 Lv Xi-lin.Seismic Theory and Application of Complex High Rise Structure[M].Beijing:Science Press,2007:12～31(in Chinese)
[3]王灵,吕西林.双塔楼弱连接连体高层建筑结构抗震性能研究[J].四川建筑科学研究,1999,(3),48～51 Wang Ling,Lv Xi-lin.Research on a Seismic Behaviors Weekly Connected High-rise Structure[J].Building Science Research of Sichuan,1999,(3):48～51(in Chinese)
[4]周颖,吕西林,卢文胜,等.双塔连体高层混合结构抗震性能研究[J].地震工程与工程震动,2008,28(5):71～78 Zhou Ying,Lv Xi-lin,Lu Wen-sheng,et al.Seismic Performance of a Multi-tower Hybrid Tall Building[J].Earthquake Engineering and Engineering Vibration,2008,28(5):71～78(in Chinese)
[5]吴小涵,刘东泽,芮明倬,等.非对称刚性连体超高层结构弹塑性时程分析[J].建筑结构学报,2011,32(6):1～9 Wu Xiao-han,Liu Dong-ze,Rui Ming-zhuo,et al.Elasto-plastic Time History Analysis of Asymmetrical Rigid-connected Twin-tower Structure[J].Journal of Building Structures,2011,32(6):1～9(in Chinese)
[6]严敏,张家华,芮明倬,等.非对称门式双塔连体超高层结构计算分析[J].建筑结构,2008,38(12):84～86 Yan Min,Zhang Jia-hua,Rui Ming-zhuo,et al.Structural Analysis of Asymmetrical Triumphal Arch Type Twin-tower Skyscraper[J].Building Structure,2008,38(12):84～86(in Chinese)
[7]张家华,严敏,芮明倬,等.非对称刚性连体高层超高层结构设计计算研究[J].建筑结构,2008,38(6):76～79 Zhang Jia-hua,Yan Min,Rui Ming-zhuo,et al.Structural Analysis of Asymmetrical Triumphal Arch Type Twin-tower Skyscraper[J].Building Structure,2008,38(6):76～79(in Chinese)
[8]郭彦林,霍轶力.CCTV新台址主楼抗震性能研究[J].建筑结构学报,2008,29(3):10～23 Guo Yan-lin,Huo Yi-li.Analysis on Earthquake Response and Aseismic Load-carrying Capability of New CCTV Building[J].Journal of Building Structures,2008,29(3):10～23(in Chinese)
[9]郭彦林,霍轶力,盛和太.CCTV新台址主楼SRC柱抗震计算模型的建立[J].建筑结构学报,2008,29(3):54～62 Guo Yan-lin,Huo Yi-li,Sheng He-tai.Modeling for Seismic Analysis of SRC columns in New CCTV Building[J].Journal of Building Structures,2008,29(3):54～62(in Chinese)
[10]高巍,郭彦林.CCTV新台址主楼外筒“米”形节点滞回性能数值研究[J].建筑结构学报,2008,29(3):73～81 Gao Wei,Cou Yan-lin.Numerical Studies of Complex Connections in the External Tube System of New CCTV Building[J].Journal of Building Structures,2008,29(3):73～81(in Chinese)
[11]黄志华,吕西林,周颖,等.双塔连体结构的模拟地震振动台模型试验研究[J].建筑结构学报,2009,30(5):31～38 Huang Zhi-hua,Lv Xi-lin,Zhou Ying,et al.Shaking Table Model test of a Multi-tower Connected Structure[J].Journal of Building Structures,2009,30(5):31～38
[12]何志军,丁洁民,吴宏磊,等.上海国际设计中心不对称双塔连体结构设计研究[J].建筑结构,2008,38(9):47～51 He Zhi-jun,Ding Jie-min,Wu Hong-lei.Design of Asymmetry Double-tower Connected Structure of Shanghai International Design Center[J].Building Structure,2008,38(9):47～51(in Chinese)
[13]顾云磊,钱江.复杂连体高层建筑结构抗震性能计算分析研究[J].结构工程师,2011,27(1):85～92 Gu Yun-lei,Qian Jiang.Research on Seismic Performance of a Complex High-rise Building with Connected Structure[J].Structural Engineers,2011,27(1):85～92(in Chinese)
[14]JGJ2-2002,高层建筑混凝土结构技术规程[S]JGJ2-2002,Technical Specification for Concrete Structures of Tall Building[S](in Chinese)
[15]齐虎,李云贵,吕西林.箍筋约束混凝土的单轴力学性能研究[J].建筑结构,2011,41(1):79～82 Qi Hu,Li Yun-gui,Lv Xi-lin.Study of Uniaxial Mechanical Behavior of Concrete Confined with Hoops[J].Building Structure,2011,41(1):79～82
[16]齐虎,李云贵,吕西林.混凝土弹塑性本构实用模型研究[J].建筑科学,2011,27(1):33～38 Qi Hu,Li Yun-gui,Lv Xi-lin.Study on ConcreteElasto-Plastic Practical Constitutive Model[J].Building Science,2011,27(1):33～38(in Chinese)
[17]Qi Hu,Li Yun-gui,Lv Xi-lin.An Elastic Plastic Viscous-damage Model for Concrete Considering StrainRate Effect and Application[A].The 3rd International Conference on Computational Intelligence and Industrial Application[C].Wuhan,China,December 4～5,2010:146～151
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