论文部分内容阅读
建立了膜结构与弹性支承结构整体荷载分析的基本方程,支承结构考虑了梁单元的几何非线性效应,给出了非线性方程组的迭代求解公式,编制了整体荷载分析程序。通过算例探讨了整体与非整体分析,以及支承梁单元分别采用小变形理论与有限变形理论对计算结果的影响。计算结果表明,结构采用不同的分析方法得到的位移与内力的计算结果存在一定差异,其中支承结构的刚度是重要的影响因素。
The basic equations for the analysis of the integral load of the membrane structure and the elastic support structure are established. The geometric nonlinear effect of the beam element is taken into account in the support structure. The iterative solution formula of the nonlinear equations is given and the overall load analysis program is programmed. Through numerical examples, the integral and non-integral analysis and the influence of the small deformation theory and the finite deformation theory on the calculation results of the support beam elements are discussed. The calculation results show that there are differences in the calculation results of the displacement and internal forces obtained by different analysis methods. The stiffness of the support structure is an important influencing factor.