| 多拱肋蝶形拱桥的施工索力优化研究 |
| |
| 引用本文： | 霍学晋,高立强,伍星.多拱肋蝶形拱桥的施工索力优化研究[J].公路交通科技,2011,28(3):82-89. |
| |
| 作者姓名： | 霍学晋 高立强 伍星 |
| |
| 作者单位： | 西南交通大学土木工程学院,四川成都,610031 |
| |
| 摘 要： | 多拱肋蝶形拱桥由于各拱肋的异化导致结构的受力异常复杂且空间效应明显,针对该桥型索力优化问题的特点,并考虑施工过程中混凝土的收缩徐变和结构的几何非线性等因素的影响,采用割线迭代法进行施工索力的调值计算,并对4种不同的调索方案从钢管内核心混凝土的拉应力、索力的不均匀程度、拱顶位移等方面进行对比分析.结果表明:割线法迭代速度...
|
| 关 键 词： | 桥梁工程 索力优化 割线迭代法 调索顺序 蝶形拱桥 |
Study on Optimization of Construction Cable Forces for Multi-rib Butterfly-shaped Arch Bridges |
| |
| HUO Xuejin,GAO Liqiang,WU Xing.Study on Optimization of Construction Cable Forces for Multi-rib Butterfly-shaped Arch Bridges[J].Journal of Highway and Transportation Research and Development,2011,28(3):82-89. |
| |
| Authors: | HUO Xuejin GAO Liqiang WU Xing |
| |
| Institution: | HUO Xuejin,GAO Liqiang,WU Xing(School of Civil Engineering,Southwest Jiaotong University,Chengdu Sichuan 610031,China) |
| |
| Abstract: | Due to the alienation of arch ribs of butterfly-shaped arch bridge,the structural behavior of the bridge is particularly complicated and presents obvious spatial effects.According to the characteristic of cable force optimization,the cable forces during the construction stage were calculated by secant iterative method considering the influencing factors such as the shrinkage and creep of concrete and geometric nonlinearity of the structure.In addition,the results of four proposals with different adjusting o... |
| |
| Keywords: | bridge engineering cable force optimization secant iterative method cable adjusting order butterfly-shaped arch bridge |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
