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) ›› 2011, Vol. 30 ›› Issue (S2): 1252-1255.DOI: 10.3969/j.issn.1674-0696.2011.supp2.029

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外倾式部分斜拉桥重庆嘉悦大桥 锚固结构试验及受力分析

孙淑红,顾安邦,张雪松   

  1. 重庆交通大学桥梁系,中国重庆400074
  • 收稿日期:2011-08-17 出版日期:2011-12-30 发布日期:2015-01-22
  • 作者简介:孙淑红(1973—),女,河南洛阳人,博士研究生,主要从事大跨径桥梁设计理论研究。E-mail:cqfrank@126.com。

Cable Girder Anchorage Experiment and Stress Analysis of Extra-Dosed Cable-Stayed Bridge

SUN Shu-hong,GU An-bang,ZHANG Xue-song   

  1. Department of Bridge Engineering,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2011-08-17 Online:2011-12-30 Published:2015-01-22

摘要: 介绍了重庆嘉悦大桥的主梁结构特点,以及该桥的主梁节段空间应力仿真分析结果,并介绍了为验证计算结 果所做的主梁一节段1∶ 3 缩尺模型试验的研究情况。从理论和实践上探讨了PC 主梁部分斜拉桥采用特殊索梁锚 固结构的可行性,以及锚固结构在超大索力作用下的安全性,得到了一些对设计、施工有益的结论和建议。

关键词: 矮塔斜拉桥, C60 混凝土箱梁, 模型试验, 应力集中, 开裂荷载, 剪力滞后

Abstract: This paper firstly introduces the PC beam’s construction characteristics of Chongqing Jiayue Bridge and the simulated analytical result of the internal stress of the girder. The 1∶ 3 scale-down model test of the PC beam is established to verify the above calculation result. Finally,the applicability of cable-girder anchorage structure in the extra-dosed cablestayed bridge of the PC beam is discussed,as well as the safety of the cable-girder anchorage structure under the kilo-ton cable force. Some useful conclusions and suggestions are presented concerning Jiayue Bridge’s design and construction.

Key words: Extra-dosed cable-stayed bridge, C60 concrete box girder, model experiment, stress concentration, cracking load, shear lag

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