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| Use Nonlinear Programming to Achieve Camber of Steel Truss Continuous Bridge |
| HU Bu-mao, Ai Zong-liang, Yuan Ming, Dai Sheng-yong |
| China Railway Eryuan Engineering Group Co. Ltd, Chengdu, Sichuan 610031, China |
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Abstract Research purposes：There are many factors to affect the calculations of camber, because long-span steeltruss continuous girder has a complex structure and high camber. In this paper, the camber curve of steel truss continuous bridge with a complex truss and high camber is solved quickly and accurately through setting up the mathematical model with nonlinear programming theory and MATLAB software to provide the reference to achieving the camber curve of large-sized steel truss continuous bridge .
Research conclusions： Temperature algorithm should be used to solve the camber of steel truss continuous bridge in order to achieve the structure camber curve. The optimized object can be made clear , the constrain t equations can be flexible and the structure camber curve can be got easily and quickly with the theory of non linear programming . It’s a common method to solve the camber curve of girder. With this method, it only needs changing the length of upper chord, so the design work can be much simplified.
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Received: 21 July 2009
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[ 1 ] TB 10002.2 2005, 铁路桥梁钢结构设计规范[S].
TB10002.2 2005, Code for Design on Steel Structure of Railway Bridge[S].
[ 2 ] 李堪以. 合理设置铁路钢梁的上拱度[J]. 铁道建筑, 1994(1): 26-28.
Li Kanyi. Rational Install Camber of Railway Steel Girder[J]. Railway Engineering, 1994(1): 26-28.
[ 3 ] 侯俊明, 黄苏才. 桥梁结构预留拱度值初探[J]. 青海交通科技, 2002(1): 24-25.
Hou Junming, Huang Sucai. Analysis of Bridge Camber[J]. Qinghai Jiaotong Science and Technology, 2002(1): 24-25.
[ 4 ] 陈朝辉. 预拱度分析[J]. 山西建筑, 2008(9): 329-330.
Chen Zhaohui. The Analysis of the Camber[J]. Shanxi Architecture, 2008(9): 329-330.
[ 5 ] 安旭刚. 大跨度钢梁的上拱度设置 [ J]. 科技情报开发与经济, 2009( 23): 227- 228.
An Xugang. Discussion on the Setting-up of the Camber of Long-span Steel Beam[J]. Sci-tech Information Development & Economy, 2009(23): 227-228.
[ 6 ] 武芳文, 薛成凤, 赵雷. 连续刚构桥梁悬臂施工线形控制分析[J]. 铁道工程学报, 2006(7): 29-33.
Wu Fangwen, Xue Chengfeng, Zhao Lei. The Alignment Control Analysis of Cantilever Construction for Continuous Rigid Frame Bridge[J]. Journal of Railway Engineering Society, 2006(7): 29-33.
[ 7 ] 铁道部大桥工程局. 九江长江大桥技术总结[M]. 武汉: 武汉测绘科技大学出版社, 1996.
China Zhongtie Major Bridge Engineering Group Co. , Ltd. Summary of Technology for Jiujian Yangtze River Bridge[M]. Wuhan: Wuhan Technical University of Surveying & Mapping Press, 1996.
[ 8 ] 吴冲主. 现代钢桥[M]. 北京: 人民交通出版社, 2006.
Wu Chongzhu. Modern Steel Bridges[M]. Beijing: China Communications Press, 2006.
[ 9 ] 《运筹学》教材编写组. 运筹学[M]. 北京: 清华大学出版社, 2009.
The Group of Compile Operational Research Teaching Materials. Operational Research[M]. Beijing: Tsinghua University Press, 2009.
[ 10 ] 薛长虹, 于凯. 大学数学实验—MATLAB应用篇[M]. 成都: 西南交通大学出版社, 2003.
Xu Changhong, Yu Kai. College Mathematics Experiment-MATLAB Practice[M]. Chengdu: Southwest Jiaotong University Press, 2003.
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2010, Vol. 27 
