| 滁河特大桥吊杆张拉控制力计算 |
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| 引用本文： | 陈强,黎曙文,瞿国召,许三平,李学斌.滁河特大桥吊杆张拉控制力计算[J].桥梁建设,2011(6). |
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| 作者姓名： | 陈强 黎曙文 瞿国召 许三平 李学斌 |
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| 作者单位： | 1. 中国铁道科学研究院铁建所,北京,100081
2. 中铁第四勘察设计院集团有限公司,湖北 武汉,430063 |
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| 摘 要： | 为了实现系杆拱桥吊索(或吊杆)力张拉的“一步到位”,避免后期的索力调整,针对滁河特大桥(尼尔森结构体系)的结构特点,以成桥状态下的吊杆力满足设计要求为目标,提出了优化数学模型及迭代算法实现过程,对吊杆张拉控制力进行了优化计算,给出了综合考虑成桥状态满足设计要求的吊杆张拉控制力,成功地进行了滁河特大桥施工过程控制.实践证明,采用优化的吊杆张拉控制力,能够满足该桥施工过程中拱肋、系梁的强度安全和稳定性要求,避免了吊杆多次张拉及调整方案.
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| 关 键 词： | 拱桥 系杆拱 吊杆 优化 迭代法 |
Calculation of Control Forces for Tensioning of Suspenders of Chuhe River Bridge |
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| CHEN Qiang
,
LI Shu-wen
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QU Guo-zhao
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XU San-ping
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LI Xue-bin.Calculation of Control Forces for Tensioning of Suspenders of Chuhe River Bridge[J].Bridge Construction,2011(6). |
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| Authors: | CHEN Qiang LI Shu-wen QU Guo-zhao XU San-ping LI Xue-bin |
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| Institution: | CHEN Qiang1,LI Shu-wen2,QU Guo-zhao2,XU San-ping2,LI Xue-bin1(1.Railway Engineering Research Institute,China Academy of Railway Sciences,Beijing 100081,China,2.China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China) |
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| Abstract: | To realize the tensioning of suspenders of tied arch bridge in one step and to avoid the late time adjusting of cable forces of the suspenders,in the light of the structural characteristics of Chuhe River Bridge(a Nilsen structure system) and with the aim that the cable forces of the suspenders of the completed bridge could meet the design requirements,the optimal mathematic model and the iteration algorithm process were put forward,the control forces for the tensioning of the suspenders were optimally calc... |
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| Keywords: | arch bridge tied arch suspender optimization iteration method |
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