Local Web Buckling of Thin-Walled Steel Ⅰ-Beams
Local web buckling of thin-walled steel I-beams was investigated both numerically and experimentally. Finite element analysis of the beams shows that the web buckles locally either under the concentrated load or at the support if the beam is unstiffened. Contrary to the equation given in the current design code,a linear,rather than a quadric relationship between the normal stress and the shear stress was revealed by the finite element modeling. The local compressive stress at the top of web does not affect buckling of web significantly either. The numerical findings were further validated by testing of small I-beams made of silicone rubber. A new form of design equation for local web buckling was given by statistics and regression of the analytical results of beams.
I-beam Web Buckling Finite element
Enchun Zhu Huazhang Zhou
School of Civil Engineering,Harbin Institute of Technology,Harbin,150090 China
国际会议
哈尔滨
英文
81-90
2008-10-11（万方平台首次上网日期，不代表论文的发表时间）