| 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 |
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| 引用本文： | 孙淑红,顾安邦,张雪松.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[J].重庆交通大学学报(自然科学版),2011(Z2):1252-1255,1260. |
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| 作者姓名： | 孙淑红 顾安邦 张雪松 |
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| 作者单位： | 重庆交通大学桥梁系 |
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| 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。
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| 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 |
Cable Girder Anchorage Experiment and Stress Analysis of Extra-Dosed Cable-Stayed Bridge |
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| SUN Shu-hong,GU An-bang,ZHANG Xue-song.Cable Girder Anchorage Experiment and Stress Analysis of Extra-Dosed Cable-Stayed Bridge[J].Journal of Chongqing Jiaotong University,2011(Z2):1252-1255,1260. |
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| Authors: | SUN Shu-hong GU An-bang ZHANG Xue-song |
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| Affiliation: | (Department of Bridge Engineering,Chongqing Jiaotong University,Chongqing 400074,China) |
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| 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 cable-stayed 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. |
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| Keywords: | Extra-dosed cable-stayed bridge C60 concrete box girder model experiment stress concentration cracking load shear lag |
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