Effect of Stiffeners on Shear Lag in Steel Box Girders

Al-Khawarizmi Engineering Journal

Mohannad H. M. Al-Sherrawi¹  Ghaidak Ahmed Fadhil¹ 

[1] Department of Civil Engineering/ College of Engineering/University of Baghdad;

关键词: Shear lag;    effective width;    box girder;    stiffeners;   

DOI  :  

来源: DOAJ

【 摘 要 】

This paper studies the effects of stiffeners on shear lag in steel box girders with stiffened flanges. A three-dimensional linear finite element analysis using STAAD.Pro V8i program has been employed to evaluate and determine the actual top flange stress distribution and effective width in steel box girders. The steel plates of the flanges and webs have been modeled by four-node isoparametric shell elements, while the stiffeners have been modeled as beam elements. Different numbers (4, 8, and 15) for the steel stiffeners have been used in this study to establish their effects on the shear lag and longitudinal stresses in the flange. Using stiffeners reduced the magnitude of the top flange longitudinal stresses about 40%, but didn’t affect the shear lag.

【 授权许可】

Unknown