CAJ | 학술논문

根据能量变分原理导出了索-塔-梁耦合作用下斜拉桥面内稳定的计算公式，并采用Newton-Raphson方法对所建立的非线性方程组进行求解. 以青洲闽江大桥为例将本文程序与ANSYS程序的计算结果进行了对比. 研究发现这种方法具有良好的收敛性，简单快捷，适于在小型计算机上应用.
근거능량변분원리도출료색-탑-량우합작용하사랍교면내은정적계산공식，병채용Newton-Raphson방법대소건립적비선성방정조진행구해. 이청주민강대교위례장본문정서여ANSYS정서적계산결과진행료대비. 연구발현저충방법구유량호적수렴성，간단쾌첩，괄우재소형계산궤상응용.
A calculation formula is derived from the potential energy of the whole cable-stayed bridge with an iteractive procedure and the Newton-Raphson method is used to solve the nonlinear equations，which is a practical method for nonlinear analysis of cable-stayed bridge. It is found that the interactive procedure is convergent and that several terms are sufficient. The method is simple and quick， and suitable for use on personal computers.