Experimental Study of Local Buckling of Castellated Steel Beams Under Pure Bending

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Ji, Wenting^1 ; Jia, Lianguang^1 ; Wang, Yuhan^1 ; Chen, Chen^1,2

School of Civil Engineering, Shenyang Jianzhu University, No.9, Hunnan Road, Hunnan District, Shenyang City Liaoning, China^1

Country Garden Neimenggu Regional Company, Xincheng District Huhehaote City, Neimenggu, China^2

关键词: Castellated beam;    Local buckling;    Local stability;    Moment curvature;    Pure bending;    Steel beams;    Thickness ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/2/022013/pdf
DOI  :  10.1088/1757-899X/392/2/022013

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In order to investigate the buckling performance of castellated beams, three hexagon-hole castellated beams with different depth-thickness ratio and stiffeners setting were tested under pure bending. By observing and comparing the failure mode and the relationship of moment-curvature, the local stability and overall performance of beam webs were studied. The experimental results show that under pure bending, the buckling mainly occurs in the bridge plate above the openings and pier plate among the openings. Reducing the depth-thickness ratio of the web and setting stiffeners can improve the web buckling performance and the overall performance of castellated beam.