摘要
双反弯曲线钢箱梁桥由于存在弯扭耦合效应,会引起截面扭转、支座反力不均匀等现象,受力较为复杂。针对双反弯曲线钢箱梁桥的剪力滞效应,本文通过采用壳单元建立空间精细化有限元模型,详细讨论了其横向及纵向"剪力滞"效应的规律,可为今后类似桥梁的设计计算提供参考。
Reverse bending curved steel box continuous girder’s stress state is complex because of its coupling effect of bend-twist.It can cause twist of girder section and uneven distribution of support reactions.In order to calculate the shear lag effect of reverse bending curved steel box continuous girder,3-D finite element model is established.The law of bend-twist effect obtained in this article may be a reference for similar works.
出处
《公路工程》
北大核心
2013年第4期124-127,132,共5页
Highway Engineering
关键词
双反弯曲线
剪力滞效应
弯扭耦合
Reverse bending curve
Shear lag effect
Coupling effect of bend-twist
