Research Article

Nonlinear Finite Element Analysis and Comparison of In-Plane Strength of Circular and Parabolic Arched I-Section Cellular Steel Beam

Table 5

Comparative study on FE analysis result and experimental result.

SpecimensUltimate buckling load (kN)In-plane vertical deflection (mm)Mode of buckling
FEAEXP

B-1253259.90.972.674452.60.8416.34Flexural bendingFlexural bending
B-2124120.71.022.362420.111.1916.20Web postbucklingWeb postbuckling
B-3137126.71.087.521820.580.8714.33Web postbucklingWeb postbuckling
B-4130130.30.990.231719.280.8813.41Web postbucklingWeb postbuckling