| 非线性因素对超大跨度斜拉桥活载内力的影响 |
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| 引用本文： | 张雪松,梁鹏,贾丽君,肖汝诚.非线性因素对超大跨度斜拉桥活载内力的影响[J].重庆交通大学学报(自然科学版),2005,24(1):5-8,24. |
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| 作者姓名： | 张雪松 梁鹏 贾丽君 肖汝诚 |
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| 作者单位： | 同济大学,桥梁工程系,上海,200092;重庆交通学院,土木建筑学院,重庆,400074;同济大学,桥梁工程系,上海,200092 |
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| 摘 要： | 笔者研究了非线性因素对超大跨度斜拉桥使用阶段内力的影响,分析中同时考虑了拉索垂度效应、P-Δ效应和大位移效应的影响.以一座主跨超千米的斜拉桥为例,给出了各控制截面内力的非线性影响系数,并提出了减小超大跨度斜拉桥非线性影响的措施.
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| 关 键 词： | 非线性 超大跨度 斜拉桥 使用阶段内力 |
| 文章编号： | 1001-716X(2005)01-0005-04 |
| 修稿时间： | 2004年1月14日 |
Influence of structural nonlinearities on Internal force of super-long span cable-stayed bridge under service stage |
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| Abstract: | In this paper influence of structural nonlinearities on internal force of super-long span Cable-Stayed Bridge under service stage is studied. The cable sag effect, the beam-column effect and the large displacement effect are taken into account in the study. Based on the study of a cable-stayed bridge with a main span of more than 1000-meter-long, the nolinear influence factors of internal force at controlling sections are evaluated. Finally, the measures to reduce the influence of nonlinearities are presented. |
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| Keywords: | nonlinearity super-long span cable-stayed bridges internal force under service stage |
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