白塔大桥箱梁效应分析  

Box-girder effect analysis of Baita Bridge

作　　者：程仁元 郑振飞[2] 

机构地区：[1]福建省公路管理局,福建福州350004 [2]福州大学土木建筑工程学院,福建福州350002

出　　处：《福州大学学报（自然科学版）》2000年第z1期7-14,共8页Journal of Fuzhou University(Natural Science Edition)

摘　　要：白塔大桥可看成是由４个箱组成的多箱单室的连续箱梁．具备箱梁的特性．本文在对箱梁 效应进行分析时，运用一般杆系结构的刚度法，取每一节点７个自由度的箱梁分析单元，对箱梁 进行在约束扭转下翘曲、畸变和剪力滞效应的计算．Baita Bridge can be taken as multi-box and single room continuous box girder composed by four boxes, so it has the specific property of box girder. In this paper, box girder effect is analyzed by the ordinary rigid method, which is taking out box analysis unit of seven free level each point to calculate the buckling, distortion and shear lag effect of box girder under confined torsion.

关 键 词：桥 箱梁 剪力滞 翘曲 畸变 

分 类 号：U443.13+[建筑科学—桥梁与隧道工程]