作　　者： ; ;

机构地区： 同济大学土木工程学院桥梁工程系

出　　处： 《深圳大学学报（理工版）》 2008年第2期140-146,共7页

摘　　要： 基于分段悬链线法,介绍自锚式悬索桥主缆线形计算原理和步骤,考虑弯矩对加劲梁轴向刚度的影响,在迭代计算过程中,提出采用非线性规划方法,并与传统的影响矩阵法进行对比,计算结果表明,两者结果吻合,从而使借助大型通用优化软件对自锚式悬索桥主缆线形进行精确求解成为可能. In consideration of the effect of the moment on the axial rigidity of the reinforced beam, the theory andpractice of main cable＇s configuration calculation of self-anchored suspension bridge were systemically introduced with the method of segmental catenaries. A non-linear programming method was adopted in the iteration computation. The results obtained by the non-linear programming method are in agreement with those by the influence matrix method. Therefi）re, it would be possible to calculate the main cable＇s configuration of self-anchored suspension bridge by utilizing commercial optimization software.

关 键 词： 自锚式悬索桥 轴向刚度 分段悬链线 主缆线形 无应力索长 影响矩阵 非线性规划 单纯形

领　　域： [建筑科学] [交通运输工程] [建筑科学] [交通运输工程]