城市人行景观桥总体设计及减振控制研究

Overall Design and Vibration Reduction Control of Pedestrian Landscape Bridge in a City

城市人行景观桥在追求结构轻巧的同时往往存在着结构受力的要求与景观效果、桥梁振动之间的矛盾,如何综合考虑人行桥的受力、景观和振动之间的关系成为城市人行景观桥设计的关键。以某城市人行景观桥为工程背景,对人行景观桥总体设计及减振措施进行探讨和研究。运用三维设计方法对人行桥的整体景观进行了设计,设置TMD调谐质量阻尼器减少了人行桥的振动,使其达到行人舒适度的标准。

While pursuing lightness of structure,urban pedestrian landscape bridges often have contradictions between structural stress requirements,landscape effects and bridge vibration.How to comprehensively consider the relationship between stress,landscape and vibration of pedestrian bridges has become the key to the design of urban pedestrian landscape bridges.Based on a pedestrian landscape bridge in a city,this paper discusses and studies the overall landscape design and vibration reduction measures of pedestrian landscape.The overall landscape of the pedestrian bridge is designed by using the three-dimensional design method.The TMD tuned mass damper is set to reduce the vibration of the pedestrian bridge and make it reach the standard of pedestrian comfort.