直线小箱梁在小半径曲线上的应用  

The Application of Linear Small Box Girder on Small Radius Curve

作　　者：杨功勤 YANG Gong-qin(Nanchang Railway Survey and Design Institute Co.Ltd.,Nanchang 330002,China)

机构地区：[1]南昌铁路勘测设计院有限责任公司

出　　处：《工程建设与设计》2020年第3期104-106,共3页Construction & Design for Engineering

摘　　要：小箱梁在公路桥梁设计中被广泛使用,直线小箱梁运用于小半径的曲线上,同样具有制造方便、架设方法简单等特点。但是,在结构计算等方面和直线桥梁有着较大的差异。论文通过设计实例,重点说明了直线小箱梁运用于曲线地段,横向分配系数的计算、单梁验算、后浇带和悬臂翼缘板设计等方面的异同,为同类型桥梁的设计提供借鉴。Small box girders are widely used in the design of highway bridges.Linear small box girders are used in curves with small radius.However,it is quite different from linear bridge in structural calculation.Through design examples,this paper emphatically explains the calculation of transverse distribution coefficient,the checking calculation of single beam,the design of post-cast belt and cantilever flange plate,etc.,in the course of the application of linear small box girder in curved section.

关 键 词：小箱梁 小半径曲线 横向分配系数 

分 类 号：U448.42[建筑科学—桥梁与隧道工程] U448.213[交通运输工程—道路与铁道工程]