某异形大跨钢人行桥设计研究

Study on Some Special-Shaped Large-Span Steel Pedestrian Bridge Design

海南省某海湾内人行桥具有桥梁跨径大(46.5 m+83 m+46.5 m)、形式独特、结构复杂等特点,且桥梁位于台风多发区,风荷载取值大,设计具有较大难度。主要介绍该桥的关键技术,如总体设计、防腐设计、抗风研究、人致振动响应分析等方面。所得经验为类似工程提供参考。

With the background of some pedestrian bridge project in harbor area in Hainan,the bridge is of characteristics of large span(46.5 m+83.0 m+46.5 m),special shape and complicated structure;and moreover,the bridge is located in the typhoon-prone areas with large wind load value,the design has great difficulty.This paper mainly introduces the key technologies of the bridge,such as the overall design,anticorrosion design,wind resistance research,human induced vibration response analysis and so on.The experience gained can be used as reference for similar projects.