| 悬索桥的锚碇-锚跨单元研究及应用 |
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| 引用本文： | 齐东春,沈锐利,唐茂林. 悬索桥的锚碇-锚跨单元研究及应用[J]. 公路交通科技, 2011, 28(2): 82-87,92 |
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| 作者姓名： | 齐东春 沈锐利 唐茂林 |
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| 作者单位： | 西南交通大学,土木工程学院,四川,成都,610031 |
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| 基金项目： | 国家科技支撑计划资助项目 |
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| 摘 要： | 为在悬索桥结构分析中精确计算锚跨索股的张力,建立了包括锚碇、散索鞍及锚跨索股在内的3节点组合单元,该单元精确考虑了锚跨内各索股的空间走向,满足索股与鞍座相切及节点间索股无应力长度不变两个重要务件,并能考虑锚碇的沉降对锚跨索股索力的影响.假定成桥状态锚跨索股张力的合理分布模式后,根据散索鞍的自立平衡条件及锚跨索股与散索鞍...
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| 关 键 词： | 桥梁工程 锚碇-锚跨单元 有限元法 锚跨索股 散索鞍 |
Study and Application of Anchorage-Anchor Span Element for Suspension Bridges |
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| QI Dongchun,SHEN Ruili,TANG Maolin. Study and Application of Anchorage-Anchor Span Element for Suspension Bridges[J]. Journal of Highway and Transportation Research and Development, 2011, 28(2): 82-87,92 |
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| Authors: | QI Dongchun SHEN Ruili TANG Maolin |
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| Affiliation: | QI Dongchun,SHEN Ruili,TANG Maolin(School of Civil Engineering,Southwest Jiaotong University,Chengdu Sichuan 610031,China) |
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| Abstract: | In order to accurately calculate the tension of anchor span strands in structural analysis of suspension bridges,a three-node combination element,including anchorage,splay saddle and anchor span strands,was established.The element can precisely deal with the spatial location of each cable strand in the anchor span,contains two important conditions: the cable strands are always tangential to the saddle,and the unstressed length of the strands between node pairs remains constant,and also can take into account... |
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| Keywords: | bridge engineering anchorage-anchor span element finite element method anchor span strands splay saddle |
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