大底盘多塔楼连体结构的振动计算和动力特性
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摘要
用沿高度方向分段连续化的方法,对底部为大底盘、上部为多塔楼、塔楼间带连廊的高层建筑结构,建立一个分段连续的串并联振动模型,导出其水平振动的弯扭耦连振动微分方程组,用常微分方程求解器COLSYS求解其自振频率及相应的振型.讨论了连廊不同刚度时的振动特性.为复杂结构提供了一种可用的动力计算简化方法.
Using the commonly used continuum technique for multi-tower structure linked by spatial corridors and with enlarged base at the bottom, a new piecewise continous series-parallel vibrational model is established. Then, the vibrational differential equations for the model are derived. Moreover, using the ODE (Ordinary Differential Equation) solver, which is a general-purpose program developed for solving vari ous ODE problems including eigen-value problem, the natural frequencies and vibrational modes are obtained, and the dynamical behaviors for different parameters are discussed.
Using the commonly used continuum technique for multi-tower structure linked by spatial corridors and with enlarged base at the bottom, a new piecewise continous series-parallel vibrational model is established. Then, the vibrational differential equations for the model are derived. Moreover, using the ODE (Ordinary Differential Equation) solver, which is a general-purpose program developed for solving vari ous ODE problems including eigen-value problem, the natural frequencies and vibrational modes are obtained, and the dynamical behaviors for different parameters are discussed.
引文
[1]包世华,方鄂华. 高层建筑结构设计. 北京:清华大学出版社,1985;第二版,1990.
[2]包世华,王建东. 大底盘多塔楼连体结构的受力分析.建筑结构,1996,(11).
[3]袁驷,张亿果.常微分方程特征值问题的求解器解法.地震工程与工程振动,1993,(2)
[4]袁驷.介绍一个常微分方程边值问题通用程序一COLSYS.计算结构力学及其应用,1990,(2).
[5]包世华,王建东.大底盘多塔楼结构的振动计算. 建筑结构,1996,(6)
[6]包世华,王建东. 大底盘大孔口高层建筑结构的振动计算和动力特性.工程力学增刊,1996.
[2]包世华,王建东. 大底盘多塔楼连体结构的受力分析.建筑结构,1996,(11).
[3]袁驷,张亿果.常微分方程特征值问题的求解器解法.地震工程与工程振动,1993,(2)
[4]袁驷.介绍一个常微分方程边值问题通用程序一COLSYS.计算结构力学及其应用,1990,(2).
[5]包世华,王建东.大底盘多塔楼结构的振动计算. 建筑结构,1996,(6)
[6]包世华,王建东. 大底盘大孔口高层建筑结构的振动计算和动力特性.工程力学增刊,1996.
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