| 综合法初定斜拉桥合理成桥状态 |
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| 引用本文： | 唐密,左德中.综合法初定斜拉桥合理成桥状态[J].水运科技信息,2010(2):30-33. |
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| 作者姓名： | 唐密 左德中 |
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| 作者单位： | [1]孝感市公路管理处,孝感432000 [2]湖北通顺高速公路有限公司,黄冈438000 |
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| 摘 要： | 以某顶推施工独塔斜拉桥钢箱梁为背景,在斜拉桥各种设计理论的基础上,提出了一种更适合于钢箱梁斜拉桥的索力优化方法。采用最小弯曲能量法初定成桥状态,力平衡法确定主梁的弯矩可行域,作为进一步约束优化的约束条件,从而得到斜拉桥各部件受力合理的成桥状态。
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| 关 键 词： | 斜拉桥 钢箱梁 索力优化 目标函数 优化模型 |
Reasonable State of Cable-stayed Bridge by Synthesis Method |
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| Tang Mi,Zuo Dezhong.Reasonable State of Cable-stayed Bridge by Synthesis Method[J].Transportation Science & Technology,2010(2):30-33. |
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| Authors: | Tang Mi Zuo Dezhong |
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| Institution: | 1.Xiaogan Highway Management Department, Xiaogan 432000,China;2.Hubei Tongshun Expressway Co.,Ltd, Shijiazhuang 438000,China) |
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| Abstract: | On the background of a steel girder of cable-stayed bridge of single pylon of Incremental Launching, based on the design theories of cable-stayed bridge, the paper put forward an optimization method for the cable of steel box girder. Firstly, bending energy method is used to determine the initial state, then the stress-balance method is used to determine the bending moment of the main beam, so the reasonable stress state of completed bridge is obtained. |
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| Keywords: | cable-stayed bridge steel-box girder optimization of cable tension objective function optimization modal |
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