期刊论文

Yan, Dong-Huang

中文

湖南大学学报(自然科学版)

1674-2974

2015

42

5

80-85

10.3969/j.issn.1674-2974.2015.05.012

(51178058):国家自然科学基金资助项目 (51178058):National Natural Science Foundation of China (2012FG4256):湖南省科技计划资助项目 (11ZDXK01):长沙理工大学桥梁与隧道工程创新性项目

本校为第一且通讯机构

针对轨索移梁新工艺在悬索桥建设中的关键技术问题,将轨索节段离散成两节点直线单元,建立轨索移梁系统空载状态下的整体力学分析模型,推导出主缆、吊索、轨索等各构件受力状态的计算方程并求解.设计制作了矮寨悬索桥轨索移梁体系的整体缩尺模型并将模型试验与理论分析结果进行了比较.本文所提方法的计算结果与模型试验结果吻合良好,表明本文计算分析方法正确有效,能解决轨索移梁工艺整体分析求解问题,并可简化计算分析过程,计算精度和结果能够应用于工程的初态分析和求解,是一种适合于轨索移梁工艺空载状态下找形计算分析方法.

The integral mechanic model of the non-loading rail cable launching system was established to deal with the stiffening girders construction in suspension bridge. The rail cable segment was discretized into two-node line element. And the governing equations for the rail cable launching system, which consists of the main cable, the sling, the saddle and the rail cable, were determined. Moreover, a 1:33 reduced-scale experimental model for the rail cable launching system of Aizhai suspension bridge was constructed. The conclusions obtained from the theoretical analysis and experiments were compar...