中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2018, Vol. 37 ›› Issue (02): 1-8.DOI: 10.3969/j.issn.1674-0696.2018.02.01

• 桥梁与隧道工程 •    下一篇

独斜塔斜拉桥地锚箱几何参数敏感性分析

周水兴,汪林   

  1. (重庆交通大学 土木工程学院,重庆 400074)
  • 收稿日期:2016-11-10 修回日期:2017-05-15 出版日期:2018-02-20 发布日期:2018-03-02
  • 作者简介:周水兴(1967—),男,浙江嘉兴人,教授,博士,主要从事大跨度桥梁设计理论与施工控制技术方面的研究。E-mail:zhoushuixing@162.com 。
  • 基金资助:
    贵州省交通运输厅科技项目(2016-123-048)

Sensitivity Analysis on Geometric Parameters of Ground Anchor-Box for Single-Oblique-Pylon Cable-Stayed Bridge

ZHOU Shuixing,WANG Lin   

  1. (School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,P. R. China)
  • Received:2016-11-10 Revised:2017-05-15 Online:2018-02-20 Published:2018-03-02

摘要: 以贵州某独斜塔斜拉桥地锚箱设计为工程依托,利用大型通用有限元软件Midas-FEA建立数值模型,通过3种边界试算,得出了地锚箱边界条件的合 理模拟方式。采用结构力学简化模型进行理论分析,研究了几何参数对锚固区应力影响程度。研究表明:通过简化的力学模型得到的敏感性曲线和数值分 析结果基本一致;锚固区顶板应力对锚固区顶板厚度最敏感,对压重区顶板厚度敏感性最弱。

关键词: 桥梁工程, 斜拉桥, 地锚箱, 锚固区, 敏感性分析, 几何参数

Abstract: On the basis of the ground anchor-box design of a single-oblique-pylon cable-stayed bridge in Guizhou,the numerical model was established by the finite element software Midas-FEA.Through three kinds of boundary trial calculation,the reasonable simulation method for the boundary condition of the ground anchor-box was obtained.The simplified model of structural mechanics was applied to the theoretical analysis,and the influence degree of geometric parameters on the stress of anchorage zone was researched.The results show that the sensitivity curves obtained by the simplified mechanics model are basically consistent with the numerical analysis results; the stress of roof in anchorage zone is the most sensitive to the roof thickness of the anchorage zone and the least sensitive to the thickness of the top plate in the compression zone.

Key words: bridge engineering, cable-stayed bridge, ground anchor-box, the anchorage zone, sensitivity analysis, geometric parameters

中图分类号: