| 外展敞口式系杆拱桥稳定影响因素的探讨 |
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| 引用本文： | 刘军.外展敞口式系杆拱桥稳定影响因素的探讨[J].山西交通科技,2010(1):71-73,76. |
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| 作者姓名： | 刘军 |
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| 作者单位： | 山西省交通科学研究院,山西太原030006 |
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| 摘 要： | 以张家口清水河工业南桥为工程背景，采用通用有限元程序建立系杆拱桥三维空间有限元模型，用结构的临界荷栽系数作为输出结果分别探讨拱肋刚度、系杆刚度、吊杆刚度、矢跨比、拱肋倾角、吊杆非保向力效应等因素对外展敞口式系杆拱桥结构稳定的影响，对今后该体系桥梁的设计提供参考。
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| 关 键 词： | 系杆拱桥 外展敞口式 稳定 影响 因素 |
The Study on Influence Factors of Structure Stability for Abducent and Open Tied Arch Bridge |
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| LIU Jun.The Study on Influence Factors of Structure Stability for Abducent and Open Tied Arch Bridge[J].Shanxi Science & Technology of Communications,2010(1):71-73,76. |
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| Authors: | LIU Jun |
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| Institution: | LIU Jun(Shanxi Provincial Research Institute of Communications,Taiyuan,Shanxi 030006,China) |
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| Abstract: | Combined with the engineering examples,the paper discussed the 3-d space finite element model of tied arch bridge built by the general finite element program,the influence factors of structure stability of abducent and open tied arch bridge such as arch rib rigidity,tie bar rigidity,hanger rigidity,rise-span ratio,arch rib dip angle and non-directional force by using critical load coefficient as output results for reference. |
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| Keywords: | tied arch bridge abducent and open type stability influence factor |
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