双向横坡箱型截面温差作用效应计算分析

Calculation and Analysis of Temperature Difference Effect on Box Section of Two-way Cross Slope

依据《公路钢筋混凝土及预应力混凝土桥涵设计规范》对温差作用效应的理论推导公式,对目前常用的带双向横坡箱型截面的温差作用效应进行分析,提出了截面等效转换的计算思路,采用Midas civil有限元程序进行了实例验证,可为广大桥梁设计等相关工程技术人员提供参考。

Based on the theoretical derivation formula of temperature difference effect in the Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts,the temperature difference effect of box section with two-way cross slope commonly used at present is analyzed,the calculation thought of equivalent conversion of section is put forward,and the verification of example is made by adopting Midas civil finite element program,so as to provide reference for the engineering technical personnel related to bridge design.