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本文以杆系结构有限元法的思想为基础,引用Dirac δ函数与Heaviside Step函数,将梁的弯曲问题中的初参数法推广应用到杆系结构,并参照超静定结构分析中的混合法,提出平面刚架内力与变位分析的一种新方法。
In this paper, based on the idea of the finite element method of rod structure, the Dirac δ function and Heaviside Step function are used to apply the initial parameter method in the bending problem of beam to the rod structure and refer to the hybrid method in statically indeterminate structure analysis. A new method for analyzing the internal forces and displacements of plane rigid frames was proposed.