| 矮塔斜拉桥塔高优化 |
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| 引用本文： | 刘凤奎,蔺鹏臻,孙红红.矮塔斜拉桥塔高优化[J].铁道工程学报,2003(4):71-74,66. |
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| 作者姓名： | 刘凤奎 蔺鹏臻 孙红红 |
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| 作者单位： | 1. 兰州交通大学土建学院,兰州,730070
2. 兰州交通大学图书馆,兰州,720070 |
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| 摘 要： | 本文以主梁弯曲应变能最小及塔高最小为目标函数 ,建立了矮塔斜拉桥塔高优化模型 ,探讨了通过调整拉索初张力优化 (降低 )矮塔斜拉桥塔高的可行性。本文以一矮塔斜拉桥为背景 ,分析了独塔两跨矮塔斜拉桥塔高变化时调整拉索初张力的效果 ,对进一步认识矮塔斜拉桥的结构性能及同类桥梁的塔高优化设计有一定的参考意义
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| 关 键 词： | 矮塔 斜拉桥 影响矩阵 塔高 优化设计 |
| 文章编号： | 1006-2106(2003)04-0071-05 |
OPTIMIZATION ON PAGODA HEIGHT OF LOW PAGODA CABLE-STAYED BRIDGE |
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| LIU Feng-kui ,LIN Peng-zhen ,SUN Hong-hong Civil Engineering College,Lanzhou Jiaotong University, Library of Lanzhou Jiaotong University.OPTIMIZATION ON PAGODA HEIGHT OF LOW PAGODA CABLE-STAYED BRIDGE[J].Journal of Railway Engineering Society,2003(4):71-74,66. |
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| Authors: | LIU Feng-kui LIN Peng-zhen SUN Hong-hong Civil Engineering College Lanzhou Jiaotong University Library of Lanzhou Jiaotong University |
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| Institution: | LIU Feng-kui 1,LIN Peng-zhen 1,SUN Hong-hong 2 1Civil Engineering College,Lanzhou Jiaotong University, 2Library of Lanzhou Jiaotong University |
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| Abstract: | With objective functions the minimum strain energy of girder's and minimum height of pagoda, the optimal model of pagoda height of low pagoda cable-stayed bridge is built, and the feasibility of reducing the height of pagoda by adjusting cable's prestress is investigated. Taking a low pagoda cable-stayed bridge as an example, the paper analyze the effect of adjusting cable's prestress when change the pagoda height of low pagoda cable-stayed bridge with single-two and two-spans. The conclusions are valuable referenec for further understand the characteristics of low pagoda cable-stayed bridge and the optimal design of pagoda height of other similar structures. |
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| Keywords: | low pagoda cable-stayed bridge influence matrix pagoda height optimal design |
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