摘要
根据变截面高层框筒结构的截面沿高度为阶形变化的特点,本文用阶梯函数表达其变截面抗弯刚度和抗剪刚度;并用连续化的数学模型和能量变分原理导出了变截面高层框筒结构在侧向荷载作用下的微分方程组,进而用最小二乘配点法进行求解。文末有算例说明其应用。
According to the behavior of tapered framed-tube structures, that is to be stepped change along height, the variable flexural stiffness of the structures at various levels and shear stiffness of the structures at various levels are expressed by the step function. The differentiating equations of a tapered framed-tube structure under horizontal loads are derived by the mathematical model of an equiralent continum and the energy variational principle, which are anlyzed by the least sequare allocation methods. Finally,a numerical example is shown for reference in designing.
出处
《建筑钢结构进展》
2006年第1期31-34,共4页
Progress in Steel Building Structures
关键词
变截面
框筒结构
最小二乘配点法
variable section
framed tube structure, least square allocation method
