预应力混凝土常规箱梁横梁计算模式探讨

Study on Calculation Model of Prestressed Concrete Conventional Box-girder Crossbeam

横梁是箱梁桥结构中的一个重要构件,起着将上部结构荷载传递到下部结构的作用。总结现行常用的横梁计算方法,通过建立实体有限元模型进行受力分析,根据支座位置的不同,提出一套新的计算模式,并提出了横梁有效宽度的计算方法。

Crossbeam is an essential member in box-girder bridge structure and playing a role of transferring the load from upper structure to substructure. This article summarizes the current commonly used crossbeam calculation method,analyzes the force by establishing the solid finite element model,proposes a new calculation model according to the different position of the support,and proposes a calculation method of effective beam width.