空间结构斜拉索计算方法的研究

The Stayed Cables Computational Methods Research of Cable-stayed Structure

斜拉索是斜拉结构最为重要的构件,因为受到索拉力、自重和索长三个因素的影响产生垂度效应而具有了非线性特征,所以其分析方法是十分重要的。本文将具体研究抛物线理论和悬链线理论,通过研究发现,当斜拉索较短时,可用抛物线理论中只拉不压的杆单元来模拟,当索较长时,悬链线理论更为精确。

In the cable-stayed structure, the stayed cables are the most important components. Because of the stayed cables pull, weight and length, stayed cables sag effect has non-linear characteristics, so the analytical methods is very important. Here are two methods used to analyze the stayed cables： the parabolic theory and the theory＂ of catenary, we find that When the stayed cables are short, it uses just pull the lever pressure to simulate its, When the stayed cables are long, it uses the theory of catenary.