| 寒山大桥吊杆二次张拉索力计算 |
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| 引用本文： | 刘邵平,段鸿杰,李求源. 寒山大桥吊杆二次张拉索力计算[J]. 现代交通技术, 2011, 8(1): 28-31 |
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| 作者姓名： | 刘邵平 段鸿杰 李求源 |
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| 作者单位： | 江苏省交通科学研究院,长大桥梁健康检测与诊断技术交通行业重点实验室,江苏,南京,210017;江苏省公路桥梁工程技术研究中心,江苏,南京,211112 |
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| 摘 要： | 为增大结构的安全储备并保证主梁受力合理,通常系杆拱桥施工中对吊杆采用2次张拉,使其达到设计成桥索力.该文以寒山大桥为例,提出了吊杆2次张拉的施张拉力、顺序的计算问题,以影响矩阵理论为基础,建立了2次张拉最优控制的数学模型,采用惩罚函数法求解,该方法计算精确、简便、实用,是一种较为理想的计算方法.
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| 关 键 词： | 桥梁工程 影响矩阵法 惩罚函数法 2次张拉 成桥索力 |
Boom Secondary Cable-Adjustment Calculation of Hanshan Bridge |
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| Liu Shaoping,Duan Hongjie,Li Qiuyuan. Boom Secondary Cable-Adjustment Calculation of Hanshan Bridge[J]. Modern Transportation Technology, 2011, 8(1): 28-31 |
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| Authors: | Liu Shaoping Duan Hongjie Li Qiuyuan |
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| Affiliation: | Liu Shaoping1,2,Duan Hongjie1,Li Qiuyuan1,2(1.Key Laboratory of Large-span Bridge Health Inspection & Diagnosis Technology Ministry of Communications,Jiangsu Transportation Research Institute,Nanjing 210017,China,2.Jiangsu Highway Bridge Research Center of Engineering Technology,Nanjing 211112,China) |
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| Abstract: | In order to improve the structure security and guarantee the girder appropriate force in the construction of tied-arch bridges,cables should be tensioned twice and then the expected completed cable can be achieved at last.A good method was proposed to calculate the cable tension forces and the adjusted order for Hanshan Bridge.Based on the theory of influence matrix,an optimized control model to solve the second cable adjustment was established,and method of penalty function was used.This method had many ad... |
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| Keywords: | bridge engineering influence matrix method penalty function method secondary tension completed cable |
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