消能减震剪力墙结构体系的最优设计
|
摘要
提出了一种消能减震剪力墙结构最优阻尼比的设计方法。采用连续化方法,将剪力墙连梁处的阻尼器参数连续分布在墙肢上,从墙肢的微元体的力学平衡方程出发,建立了墙肢的动力偏微分方程,并映射成为双变量的常微分方程。求导建立最优函数方程,将两种极限状态参数代入最优函数方程,获得一个关于阻尼比的超越方程,用数值解法确定最优阻尼比。数值分析结果表明了设计方法的有效性。该设计方法的特点是物理概念明确,计算过程的物理信息不丢失,工作量少,可推广应用在高层建筑的消能减震设计中。
An optimization design method for shear wall structure with energy dissipation devices is put forward. By using continuum method, energy dissipation devices in shear wall structure are considered as continuous parameters in the vertical direction. According to the equilibrium equations of an infinitesimal element of shear wall, partial differential equations are derived and mapped into ordinary differential equations of two parameters. The optimal function equation is established. The parameters of two limit states are substituted into optimal function equation and a transcendental equation is obtained and the optimal damper ratio is determined by numerical method. Numerical results show effectiveness of the solution method. The method is characterized by clear physical concept and high calculation efficiency. It can be applied to the design of high-rise buildings with energy dissipation devices.
An optimization design method for shear wall structure with energy dissipation devices is put forward. By using continuum method, energy dissipation devices in shear wall structure are considered as continuous parameters in the vertical direction. According to the equilibrium equations of an infinitesimal element of shear wall, partial differential equations are derived and mapped into ordinary differential equations of two parameters. The optimal function equation is established. The parameters of two limit states are substituted into optimal function equation and a transcendental equation is obtained and the optimal damper ratio is determined by numerical method. Numerical results show effectiveness of the solution method. The method is characterized by clear physical concept and high calculation efficiency. It can be applied to the design of high-rise buildings with energy dissipation devices.
引文
[1]建设部.建筑抗震设计规范GB50011-2001[S].中国建筑工业出版社,2001.7.Ministry of Construction.Code for aseismic design of buildings GB50011-2001[S].China Architecture&Building Press,2001.(in Chinese)
[2]刘文锋.结构控制技术及最新进展(上)[J].世界地震工程,1997,13(3):19-26.Liu Wenfeng.New development and technology on structural control(Part1)[J].World Earthquake Engineering,1997,13(3):19-26.(in Chinese)
[3]刘文锋.结构控制技术及最新进展(下)[J].世界地震工程,1997,13(4):7-11.Liu Wenfeng.New development and technology on structural control(Part2)[J].World Earthquake Engineering,1997,13(4):7-11.(in Chinese)
[4]G W Housner,L A Bergman,T K Caughey,et al.Structural control:past,present,and furture[J].Journal of Engineering Mechanics,ASCE,1997,123(9):897-971.
[5]周锡元,阎维明.建筑结构的隔震、减振和振动控制[J].建筑结构学报,2002,23(2):2-12.Zhou Xiyuan,Yan Weiming.Base isolation,energy dissipation and vibration control of building structures[J].Journal of Building Structures,2002,23(2):2-12.(in Chinese)
[6]王幕勇,李罗峰.多肢墙的线性方程解[J].计算结构力学及其应用,1993,10(4):495-499.Wang Muyong,Li Luofeng.Linear equation solution of multi-branch shear walls[J].Computational Structural Mechanics and Applications,1993,10(4):495-499.(in Chinese)
[7]陈兰,梁启智.刚梁对双肢剪力墙动力特性影响的分析[J].华南理工大学学报(自然科学版),1998,26(12):109-115.Chen Lan,Liang Qizhi.An analysis of the dynamic characteristics of the structure of coupled shear walls with stiffening beam[J].Journal of South China University of Technology(Natural Science),1998,26(12):109-115.(in Chinese)
[8]包世华.新编高层建筑结构[M].北京:中国水利水电出版社,2001.Bao Shihua.High-rise building structures[M].Beijing:China Water Conservancy and Hydropower Press,2001.(in Chinese)
[9]王元战,何玉敖.夹层减震结构系统及其子系统复模态分析方法[J].天津大学学报,1994,27(3):324-328.Wang Yuanzhan,He Yuao.A subsystem complex mode method for dynamic analysis of sandwich structure systems[J].Journal of Tianjin University,1994,27(3):324-328.(in Chinese)
[10]刘文锋.高层建筑在地震作用下的多态混合控制[D].天津:天津大学,1995.Liu Wenfeng.Multi-state hybrid control of high-rise buildings under earthquake[D].Tianjin:Tianjin University,1995.(in Chinese)
[2]刘文锋.结构控制技术及最新进展(上)[J].世界地震工程,1997,13(3):19-26.Liu Wenfeng.New development and technology on structural control(Part1)[J].World Earthquake Engineering,1997,13(3):19-26.(in Chinese)
[3]刘文锋.结构控制技术及最新进展(下)[J].世界地震工程,1997,13(4):7-11.Liu Wenfeng.New development and technology on structural control(Part2)[J].World Earthquake Engineering,1997,13(4):7-11.(in Chinese)
[4]G W Housner,L A Bergman,T K Caughey,et al.Structural control:past,present,and furture[J].Journal of Engineering Mechanics,ASCE,1997,123(9):897-971.
[5]周锡元,阎维明.建筑结构的隔震、减振和振动控制[J].建筑结构学报,2002,23(2):2-12.Zhou Xiyuan,Yan Weiming.Base isolation,energy dissipation and vibration control of building structures[J].Journal of Building Structures,2002,23(2):2-12.(in Chinese)
[6]王幕勇,李罗峰.多肢墙的线性方程解[J].计算结构力学及其应用,1993,10(4):495-499.Wang Muyong,Li Luofeng.Linear equation solution of multi-branch shear walls[J].Computational Structural Mechanics and Applications,1993,10(4):495-499.(in Chinese)
[7]陈兰,梁启智.刚梁对双肢剪力墙动力特性影响的分析[J].华南理工大学学报(自然科学版),1998,26(12):109-115.Chen Lan,Liang Qizhi.An analysis of the dynamic characteristics of the structure of coupled shear walls with stiffening beam[J].Journal of South China University of Technology(Natural Science),1998,26(12):109-115.(in Chinese)
[8]包世华.新编高层建筑结构[M].北京:中国水利水电出版社,2001.Bao Shihua.High-rise building structures[M].Beijing:China Water Conservancy and Hydropower Press,2001.(in Chinese)
[9]王元战,何玉敖.夹层减震结构系统及其子系统复模态分析方法[J].天津大学学报,1994,27(3):324-328.Wang Yuanzhan,He Yuao.A subsystem complex mode method for dynamic analysis of sandwich structure systems[J].Journal of Tianjin University,1994,27(3):324-328.(in Chinese)
[10]刘文锋.高层建筑在地震作用下的多态混合控制[D].天津:天津大学,1995.Liu Wenfeng.Multi-state hybrid control of high-rise buildings under earthquake[D].Tianjin:Tianjin University,1995.(in Chinese)
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