Abstract: Theoretical method of analyzing the effect of shear lag in bridge structures has some deficiency .Aiming at the deficiency , we introduced the technology of structrral simulation for entire bridge , and analyzed the effect of shear layg by using it as a new method .This paper discussed about the advantages of the new method .As an example , in various cases effect of shear lag in Jinma Bridge was analyzed .Finally , a discussion about the advantages and disadvantages of the theoretical method and the new method were made repectively .Consequently , it provided a new way to analyzing the effect of shear lag in bridge structures

Key words: effect of shear lag , structural simulation for entire bridge , bridge structures

摘要： 分析桥梁结构剪力滞效应的理论方法有许多不足之处。针对此不足，引入了用全桥结构仿真分析技术对剪 力滞效应进行分析的方法，并讨论了它的优点。作为例子，对不同工况下金马大桥主梁中的剪力滞效应进行了分 析;最后对理论方法和仿真分析方法的优缺点进行对比讨论，提出了进一步研究的建议;从而为桥梁结构剪力滞 效应分析提供了一条新途径

关键词: 剪力滞效应, 全桥结构仿真分析, 桥梁结构