| 无横撑系杆拱桥弹性屈曲稳定及其参数优选 |
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| 引用本文： | 刘钊.无横撑系杆拱桥弹性屈曲稳定及其参数优选[J].现代交通技术,2008,5(4):16-19. |
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| 作者姓名： | 刘钊 |
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| 作者单位： | 东南大学土木工程学院,江苏,南京,210096 |
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| 摘 要： | 在无横撑系杆拱桥设计中，拱肋的侧向稳定是控制设计的因素之一。以无横撑系杆拱桥弹性稳定承载力的解析表达式为基础．探讨了结构参数变化对面内、面外稳定承载力的影响；在设定无横撑系杆拱桥的面内、面外稳定承载力相等的原则下，研究了无横撑系杆拱桥的参数优选，并给出了基于稳定性的概念设计讨论。
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| 关 键 词： | 桥梁工程 系杆拱桥 屈曲稳定 非保向力 参数优选 |
Elastic Buckling and Parametric Study of Tied-arch Bridges without Transverse Braces |
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| LiU Zhao.Elastic Buckling and Parametric Study of Tied-arch Bridges without Transverse Braces[J].Modern Transportation Technology,2008,5(4):16-19. |
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| Authors: | LiU Zhao |
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| Institution: | Liu Zhao ( College of Civil Engineeming, Southeast University, Nanjing 210096, China) |
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| Abstract: | Lateral stability is one of the controlling factors in designing the tied-arch bridges without transverse braces.In light of the analytical expressions for elastic buckling load of tied-arch bridges without transverse braces, structural parametric influence on the in-plane and out-of-plane stability of tied-arch bridges is investigated.Furthermore, under the condition of equalizing the in-plane and the out-of-plane stability capacity, the optimum structural parametric choice are studied.Conceptural design of the tied-arch bridges aiming at improving stability are also discussed. |
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| Keywords: | bridge engineering tied-arch bridge buckling non-follower force parametric choice |
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