新标准下钢箱梁应力计算分析

Stress Calculation Analysis of Steel Box Girder under New Standard

依据交通部颁发的《公路工程技术标准》(JTG B01—2014),结合《公路钢结构桥梁设计规范》(JTG D64—2015),对钢箱梁进行整体静力计算分析及截面内力应力验算;采用Midas Civil 2013空间三维有限元程序对(20+30+30+20)m跨径钢箱梁的工程实例进行应力及疲劳分析,验证设计与规范、标准间的相符性,以供钢箱梁设计、应力分析参考。

According to The Technical Standard for Highway Engineering(JTG B01-2014)issued by the Ministry of Communications and The Code for Design of Highway Steel Structures and Bridges(JTG D64-2015),the static analysis of the whole steel box girder and the checking calculation of the internal force of the section are carried out as the basis of theoretical analysis.The stress and fatigue analysis of(20+30+30+20)m span steel box girder is carried out by using Midas Civil 2013 spatial three-dimensional finite element program.The consistency between design and specification and standard is verified,which can be used as reference for design and stress analysis of steel box girder.