摘要
应用有限元计算程序,研究横隔板间距及偏心集中荷载作用位置对悬臂钢箱梁受力性能的影响规律.研究结果表明,截面畸变效应对薄壁钢箱梁纵向正应力的影响较大,分析无横隔板的薄壁钢箱梁受力性能时,截面畸变效应不能忽略;分析布置横隔板的薄壁钢箱梁受力性能时,应重点分析扭转荷载作用下横隔板对薄壁钢箱梁受力性能的影响.最后,提出了偏心集中荷载作用下悬臂钢箱梁受力性能的简化分析方法.
The effects of diaphragm span and place of eccentrically concentrated load on the mechanical behavior of steel cantilever box beams are conducted by self programming.The numerical results show that the effect of section distortion on the longitudinal normal stress of thinwalled steel box column is obvious.When the mechanical behavior of thin-walled steel box column without diaphragms is investigated,the effect of section distortion is not negligible.It is also found that while the mechanical behavior of thin-walled steel box column with diaphragms is analyzed,the effects of diaphragms on the mechanical behavior of steel cantilever box beams under torsional force should be extremely discussed.Finally,a simplified analysis method is proposed to study the mechanical behavior of steel cantilever box beams under eccentrically concentrated load.
出处
《山东理工大学学报（自然科学版）》
CAS
2013年第4期69-72,共4页
Journal of Shandong University of Technology:Natural Science Edition
基金
华侨大学科研基金资助项目(12BS209)
关键词
悬臂钢箱梁
横隔板
有限单元法
翘曲
畸变
steel cantilever box beam
diaphragm
finite element method
warping
distortion
