期刊论文

Yan, D.-H.

中文

中国公路学报

1001-7372

2003

16

1

43-46

10.19721/j.cnki.1001-7372.2003.01.011

高等学校骨干教师资助计划项目 [教技综字 2 0 0 0 -6]；

本校为第一且通讯机构

在现有的最小弯曲能量法、影响矩阵法和应力平衡法等方法的基础上 ,提出了斜拉桥合理成桥状态确定的分步算法。基本思路是 :先用最小弯曲能量法初定成桥状态 ;然后以应力平衡法确定主梁合理预应力和主梁成桥恒载弯矩“可行域”;最后用影响矩阵法确定综合考虑主梁、塔和索等结构受力要求的合理成桥状态。

The step-by-step arithmetic for the reasonable finished dead state of the concrete cable-stayed bridges is proposed on the basis of minimum bending energy method, influence matrix method and stress balancing method. The basic ideology is: at first, deciding initial dead state using minimum bending energy method; then deciding the reasonable prestressing quantity in the main beam and the relative reasonable limits of dead moments using stress balancing method; in the last, the reasonable finished dead slate of the total structure is determined by influence matrix method, considering the equalit...