西南交通大学学报 2007, 42(2) 138-142 DOI:     ISSN: 0258-2724 CN: 51-1277/U

本期目录 | 下期目录 | 过刊浏览 | 高级检索                                                            [打印本页]   [关闭]
论文
扩展功能
本文信息
Supporting info
PDF(KB)
[HTML全文]
参考文献
服务与反馈
把本文推荐给朋友
加入我的书架
加入引用管理器
引用本文
Email Alert
文章反馈
浏览反馈信息
本文关键词相关文章
索梁锚固结构
锚拉板
足尺模型试验
承载安全性
非线性仿真分析
本文作者相关文章
王子健
卫星
李小珍
李俊
强士中
PubMed
Article by WANG Zijian
Article by WEI Xing
Article by LI Xiaozhen
Article by LI Jun
Article by QIANG Shizhong

湛江海湾大桥索梁锚固结构足尺模型试验

王子健, 卫星, 李小珍, 李俊, 强士中

西南交通大学土木工程学院, 四川, 成都, 610031

摘要

为了深入研究锚拉板式索梁锚固结构的传力机理和应力分布规律,评估其安全性和可靠性,以湛江海湾大桥为工程背景,对锚拉板式索梁锚固结构进行了足尺模型试验,并与非线性有限元仿真结果进行了比较.研究表明:锚拉板与锚拉筒连接焊缝处应力水平较高,远离焊缝应力分布趋于均匀;结构整体受力合理,具有足够的安全储备,但局部存在应力集中,设计时应予以注意.

关键词 索梁锚固结构   锚拉板   足尺模型试验   承载安全性   非线性仿真分析  

Full Scale Model Test on Cable-Girder Anchorage of Zhanjian Gulf Bridge

WANG Zijian, WEI Xing, LI Xiaozhen, LI Jun, QIANG Shizhong

School of Civil Eng., Southwest Jiaotong University, Chengdu 610031, China

Abstract:

By taking Zhanjiang gulf bridge as the research object, a full scale model test for cable-girder anchorage, as the key part of bearing safety of cable-stayed bridges, was made to further investigate the mechanism of cable force transmission and the regularity of stress distribution to evaluate its security and reliability, and the experimental results were compared with 3-D nonlinear simulation ones based on FEM ( finite element method).The research shows that there exists a large concentration of stresses on welded lines between the tensile anchor plate and the anchor tube, but the distribution of stresses become uniform gradually far away from the welded lines.The cable-girder anchorage has well property and safety of load-bearing.However, the concentration of stresses in some components of the structure should be paid more attention to in the design.

Keywords: cable-girder anchorage   tensile anchor plate   full scale model test   load-bearing safety   nonlinear simulation analysis  
收稿日期 2006-03-20 修回日期  网络版发布日期  
DOI:
基金项目:

国家自然科学基金资助项目(50278079)

通讯作者:
作者简介: 王子健(1975- ),男,博士研究生,研究方向为大跨度桥梁结构行为,电话:028-87634835,E-mail:civil1409@swjtu.edu.cn

参考文献:
[1] 李小珍,蔡婧,强士中.大跨度钢箱梁斜拉桥索梁锚固结构型式的比较研究[J].土木工程学报,2004,37(3):73-79.LI Xiaozhen,CAI Jing,QIANG Shizhong.Studies on models of cable-girder anchorage for long-span cable-stayed bridges with steel box girder[J].China Civil Engineering Journal,2004,37(3):73-79.
[2] 陈开利.大跨度斜拉桥斜拉索锚固结构的试验研究[J].世界桥梁,2004(1):29-37.CHEN Kaili.Studies on the test for anchorage zones of cable-stayed bridge[J].World Bridges,2004(1):29-37.
[3] 刘庆宽,王新敏,强士中.南京长江二桥南汊桥索梁锚固足尺模型试验研究[J].土木工程学报,2001,34(2):50-54.LIU Qingkuan,WANG Xinmin,QIANG Shizhong.Full scale model test on anchorage zone of the second Yangtze river bridge at Nanjing[J].China Civil Engineering Journal,2001,34 (2):50-54.
[4] 陈伟庆,张强.南京长江二桥索梁锚固区模型试验分析[J].西南交通大学学报,2001,36(2):185-189.CHEN Weiqing,ZHANG Qiang.A model test on the anchorage zones of the second Nanjing Changjiang river bridge[J].Journal of Southwest Jiaotong University,2001,36 (2):185-189.
[5] 刘庆宽,强士中,张强,等.斜拉桥耳板索梁锚固结构受力特性研究[J].中国公路学报,2002,15(1):72-75.LIU Qingkuan,QIANG Shizhong,ZHANG Qiang,et al.Structural analysis of ear-plate cable and beam anchorage for cablestayed bridge[J].China Journal of Highway and Transport,2002,15(1):72-75.
[6] 侯文崎,叶梅新.结合梁斜拉桥锚拉板结构研究[J].钢结构,2002,17(2):23-27.HOU Wenqi,YE Meixin.Study of tensile anchor plate strncture of composite cable-stayed bridge[J].Steel Construction,2002,17(2):23-27.
[7] 李庆华.材料力学[M].成都:西南交通大学出版社,1994:189-190.
[8] 博嘉科技.有限元分析软件——ANSYS融会与贯通[M].北京:中国水利水电出版社,2002:80-125.
本刊中的类似文章

文章评论 (请注意:本站实行文责自负, 请不要发表与学术无关的内容!评论内容不代表本站观点.)

Copyright 2008 by 西南交通大学学报