基于挠度理论的三塔悬索桥参数分析
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(同济大学建筑设计研究院，上海 200092)［摘要］采用多塔悬索桥挠度理论，对三塔悬索桥的矢跨比、主塔刚度、加劲梁高度和主塔高差等进行了参数分析。通过这些分析，有利于帮助人们把握三塔悬索桥的受力特点，得出的结论可供类似桥梁方案设计时参考。［关键词］三塔悬索桥；挠度理论；参数分析Parameter Analysis of 3-tower Suspension Bridges Using Deflection TheoryLuo Xiheng(Architectural Design & Research Institute of Tongji University，Shanghai 200092,China)
Abstract:Using the deflection theory of suspension bridges with multi-tower,parameter analysis has been performed on rise-span ratio,stiffness of main tower,depth of stiffening girder and high difference between towers. Those analysis works are useful for the understanding of structural characteristics of 3-tower suspension bridges,and the conclusions drawn can be referred in scheme design stage of similar bridges.Keywords:suspension bridge with 3-tower；deflection theory；parameter analysis作者简介：罗喜恒(1969-)，男，高级工程师。参考文献［1］罗喜恒,韩大章,万田保. 多塔悬索桥挠度理论及其程序实现［J］.桥梁建设,2008(2):41-44.［2］泰州长江公路大桥设计项目组. 泰州长江公路大桥三塔两跨悬索桥结构分析研究［R］. 南京: 泰州长江公路大桥设计项目组，2007.
