变截面框架-剪力墙-薄壁筒斜交结构考虑竖向荷载作用时的弯扭耦连振动
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摘要
用沿高度方向分段连续化的方法,对沿高度方向为阶形变截面、在平面内为任意斜向布置的框架-剪力墙-薄壁筒协同工作体系,考虑竖向荷载作用的影响,建立了弯扭耦连的振动方程,用常微分方程求解器COLSYS求解了自振频率及相应的振型.讨论了高层建筑结构竖向荷载对水平振动的影响.
Firstly, using the piecewise continuum technique for the structures,the coupled differential equations of horizontal vibration for the tall building frame-shear wall-thin walled cores skewly combined structures with stepped parameters and considering the effects of vertical loads have been derived. Secondly, using the Ordinary Differential Equation Solver, which is a program developed for solving various ODE problems including eigen value problems, the vibrational frequencies and vibrational modes have been obtained. The effects of vertical loads on horizontal vibration have been discussed.
Firstly, using the piecewise continuum technique for the structures,the coupled differential equations of horizontal vibration for the tall building frame-shear wall-thin walled cores skewly combined structures with stepped parameters and considering the effects of vertical loads have been derived. Secondly, using the Ordinary Differential Equation Solver, which is a program developed for solving various ODE problems including eigen value problems, the vibrational frequencies and vibrational modes have been obtained. The effects of vertical loads on horizontal vibration have been discussed.
引文
[1]包世华,袁驷 变截面框架-剪-力墙-薄壁筒结构弯扭耦连振动的常微分方程求解器解法.计算结构力学及其应用,1991,8(4)
[2]包世华,周坚.薄壁杆件结构力学 中国建筑工业出版社,1991
[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,1993,13(2).
[4]袁驷. 介绍一个常微分方程边值问题求解通用程序—COLSYS.计算结构力学及其应用,1990,(2)
[5]包世华,易升创.变截面框架剪力墙-薄壁筒斜交结构的整体稳定计算.土木工程学报,1995,28(2).
[2]包世华,周坚.薄壁杆件结构力学 中国建筑工业出版社,1991
[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,1993,13(2).
[4]袁驷. 介绍一个常微分方程边值问题求解通用程序—COLSYS.计算结构力学及其应用,1990,(2)
[5]包世华,易升创.变截面框架剪力墙-薄壁筒斜交结构的整体稳定计算.土木工程学报,1995,28(2).
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