论文部分内容阅读
桅杆是一种高次超静定的具有非线性特征的空间结构。过去桅杆的计算多按弹性支承的连续梁法或简支梁法近似地分析杆身内力。在文献[5.6]中,按经典的结构力学方法,并采用迭代法分析桅杆,但尚有不足之处。文献“桅杆结构的非线性分析”(以下简称[1]文)按空间受力状态,采用矩阵位移法给出了桅杆结构进行精确的非线性分析方法。文章中给出了适用于一般情况下桅杆的静力、温度应力、支座沉降、自振特性和抗地震计算。这种分析方法作为研究成果被编入我国钢塔桅结构的设计规程的附录中。
The mast is a high-order statically indeterminate spatial structure with nonlinear features. In the past, the calculation of the mast mostly analyzed the internal force of the shaft approximately according to the continuous beam method supported by the elastic support or the simply supported beam method. In [5.6], according to the classical structural mechanics method, and iterative analysis of the mast, but there are still deficiencies. The paper “Nonlinear Analysis of Mast Structures” (hereinafter abbreviated as [1]) gives a precise nonlinear analysis method for the mast structure according to the spatial force state using the matrix displacement method. The article gives the static force, temperature stress, bearing settlement, natural vibration characteristics and anti-seismic calculation applicable to the general situation of the mast. This analysis method was incorporated into the appendix of the design rules for the steel tower structure in China as a research result.