非对称双塔连体结构柔性连接体系参数研究
|
摘要
基于非对称双塔连体结构柔性连接体系的3自由度(3-DOF)力学模型,利用虚拟激励法分析了连接构件的频率比、阻尼比和质量比等参数对该复杂结构体系地震反应的影响。根据不同的控制目标,得到了非对称双塔连体结构柔性连接体系支座优化设计参数变化规律和连接参数的优化组合,可用来指导此类结构的减震初步设计。最后以某实际工程为算例进行数值分析,验证了优化理论的正确性。
Based on a 3-DOF mechanical model of double-tower flexible connecting system,the effects of connecting substructures on the double-tower connected structure are considered and studied using the pseudo-exciting method. The effects of some connecting parameters,such as the connecting frequency ratio,connecting mass ratio and connecting damping ratio,are systematically analyzed in frequency domain. The optimal connecting parameters of the flexible connection system of double -tower buildings are obtained,which can be used to guide the connection design of complex structures in practical engineering. Finally,a numerical analysis is carried out based on an unsymmetrical double -tower connecting high -rise structure and the results confirm that the optimal analysis is effective.
Based on a 3-DOF mechanical model of double-tower flexible connecting system,the effects of connecting substructures on the double-tower connected structure are considered and studied using the pseudo-exciting method. The effects of some connecting parameters,such as the connecting frequency ratio,connecting mass ratio and connecting damping ratio,are systematically analyzed in frequency domain. The optimal connecting parameters of the flexible connection system of double -tower buildings are obtained,which can be used to guide the connection design of complex structures in practical engineering. Finally,a numerical analysis is carried out based on an unsymmetrical double -tower connecting high -rise structure and the results confirm that the optimal analysis is effective.
引文
[1]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[2]李卧东,刘再华.组合结构减震分析[J].华中理工大学学报,1998,26(09):93-96.
[3]孙黄胜,傅伟,孙跃东.桥式连体结构减震优化分析[J].山东科技大学学报(自然科学版),2007,26(2):32-36.
[4]林家浩.随机振动的虚拟激励法[M].北京:科学出版社,2004.
[5]谭平,周福霖,吴柱中.相邻结构的高效阻尼控制[J].世界地震工程,2000,16(04):29-34.
[6]陈文兵,唐家祥.联合结构减震体系的动力分析和连接的优化布置[J].世界地震工程,2002,18(3):141-145.
[7]李创第,陈俊忠,黄东梅.单自由度“加层”减震结构地震作用取值的复模态法[J].应用力学学报,2007,(01):164-170.
[8]Luft,R.W.Optimal tuned mass dampers for buildings[J].ASCE Journal of the structural division.1979,105:2766-2772.
[9]Warburton,G.B.and Ayorinde,E.O.Optimal absorber pa-rameters for simple systems[J].Earthquake Engineering and Structural Dynamics.1980,8:197-217.
[2]李卧东,刘再华.组合结构减震分析[J].华中理工大学学报,1998,26(09):93-96.
[3]孙黄胜,傅伟,孙跃东.桥式连体结构减震优化分析[J].山东科技大学学报(自然科学版),2007,26(2):32-36.
[4]林家浩.随机振动的虚拟激励法[M].北京:科学出版社,2004.
[5]谭平,周福霖,吴柱中.相邻结构的高效阻尼控制[J].世界地震工程,2000,16(04):29-34.
[6]陈文兵,唐家祥.联合结构减震体系的动力分析和连接的优化布置[J].世界地震工程,2002,18(3):141-145.
[7]李创第,陈俊忠,黄东梅.单自由度“加层”减震结构地震作用取值的复模态法[J].应用力学学报,2007,(01):164-170.
[8]Luft,R.W.Optimal tuned mass dampers for buildings[J].ASCE Journal of the structural division.1979,105:2766-2772.
[9]Warburton,G.B.and Ayorinde,E.O.Optimal absorber pa-rameters for simple systems[J].Earthquake Engineering and Structural Dynamics.1980,8:197-217.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心