| 大跨径钢管混凝土拱桥缆索吊装非线性分析 |
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| 引用本文： | 戴鹏,谢功元,郝宪武,周勇超.大跨径钢管混凝土拱桥缆索吊装非线性分析[J].武汉理工大学学报,2007,29(2):114-117. |
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| 作者姓名： | 戴鹏 谢功元 郝宪武 周勇超 |
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| 作者单位： | 1. 长安大学桥梁与隧道陕西省重点实验室,西安,710064
2. 湖北省交通基本建设工程质量监督站,武汉,430030 |
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| 摘 要： | 建立了大跨径拱桥吊装的空间有限元模型，采用随动坐标迭代法，计入几何非线性的影响因素,基于优化理论，建立了缆索吊装扣索力的优化数凄模型；采用前进分析方法，对大跨径钢管混凝土拱桥吊装施工过程进行分析。以某主跨368m钢管混凝土拱桥为工程算例，验证了文中方法的有效性。计算结果表明，考虑几何非线性影响后，计算得到的吊装控制点偏差值小，计算精度高。
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| 关 键 词： | 桥梁工程 钢管混凝土拱桥 拱肋吊装 非线性分析 优化计算 |
| 文章编号： | 1671-4431(2007)02-0114-04 |
| 修稿时间： | 2006年9月14日 |
Nonlinear Analysis of Cable-hoisting Construction of Long-span Concrete Filled Steel Tube Arch Bridge |
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| DAI Peng,XIE Gong-yuan,HAO Xian-wu,ZHOU Yong-chao.Nonlinear Analysis of Cable-hoisting Construction of Long-span Concrete Filled Steel Tube Arch Bridge[J].Journal of Wuhan University of Technology,2007,29(2):114-117. |
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| Authors: | DAI Peng XIE Gong-yuan HAO Xian-wu ZHOU Yong-chao |
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| Abstract: | The geometry nonlinear behavior for cable-hoisting construction of long-span concrete filled steel tube(CFST) arch bridge is quite clear.A three-dimensional finite element modal for CFST arch rib segment was established.Due to the geometric nonlinearity of the structure,the concomitant coordinate method was used in this paper.Based on optimization theory,a mathematical optimizing model for buckling cable force of CFST arch rib hoisting was established.The forward analysis method was adopted to simulation analysis for arch rib hoisting construction.A CFST arch bridge with 368 m main span was taken as an example to verify the effectiveness of the method.Considered the geometry nonlinear behavior,the analysis results showed that the deflection of the control point is small and highly accurate. |
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| Keywords: | bridge engineering CFST arch bridge arch rib hoisting construction nonlinear analysis optimization calculation |
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