考虑偏心支承影响的3跨弯箱梁桥位移分析  

Displacement analysis of curved box-girder bridges with three spans considering the eccentric support

作　　者：贾燕[1] 孙庆珍[1] 王东炜[2] 

机构地区：[1]郑州航空工业管理学院,河南郑州450052 [2]郑州大学,河南郑州450002

出　　处：《四川建筑科学研究》2011年第5期19-21,共3页Sichuan Building Science

基　　金：国家自然科学基金资助项目(50178064)

摘　　要：弯箱梁桥是近几年来高速公路和高架桥上使用较多的一种桥型。由于其结构特点,其设计计算非常繁杂,工作量非常大。通过对不同圆心角的3跨连续弯箱梁桥模型在偏心支承的影响下位移的分析,导出了偏心矩、桥梁跨长与位移的经验公式,以供工程师在设计中参考。Curved box-girder bridge is one type of bridges often used on expressways and flyovers extensively for recent years.Because of its structural features,but its design caculation it too complicated,moreover,the design work is very time consuming.This text,through the displacement analysis of curved box-girder bridge modles with three spans under the influence of eccentric support,lead out the experience formula between displacement and bridge span,eccentricity of support,in order that engineers are able to control the selection of the design parameters while doing the design work.

关 键 词：弯箱梁桥 位移分析 偏心支承 

分 类 号：U448.213[建筑科学—桥梁与隧道工程]