无塔人行悬索桥设计研究

基于有限位移法,对某无塔非对称人行悬索桥进行了设计研究,根据工程的实际特点,对该桥的总体布置、主缆、吊杆以及加劲梁等进行了合理选择,对受力进行了相应分析,同时也对缆风索进行了设计研究。结果表明,设置缆风索能大幅提升结构整体刚度,从而使结构自振基频得到提高,且效果明显。研究的结论可为今后人行悬索桥的设计提供有益的参考,也为该类型桥梁的抗风设计等奠定基础。

Research on Tower Free Pedestrian Suspension Bridge Design

Research on design of certain tower free pedestrian suspension bridge based on finite displacement method,rational selections of layout,main cable,suspender and reinforcement beam of the bridge are given and relevant analysis to strain of this bridge is conducted as per actual characteristics of the project, also research of cable wind-proof wire design.Results show the cable wind-proof wire may greatly meliorate integral structural rigidity and improves the self-vibration fundamental frequency and the effect is quite obvious.Conclusion of the research may offer good reference to future pedestrian cable suspension bridge design,also it may be used as the foundation for anti-wind design of this type of bridges.