Calculation of the Effective Cross-Sectional Properties of a Load-Bearing Member from a Cold-Formed Hat Channel under Axial Compression

Task: Verify the correctness of the calculation of the effective cross-sectional properties for load-bearing members from cold-formed profiles under axial compression.

Source: [1] Worked examples according to EN 1993-1-3, Eurocode 3, Part 1-3 // ECCS TC7 TWG 7.5 Practical Improvement of Design Procedure. – 1st Ed., ECCS CECM, EKS, 2008. – 235 p.

Compliance with the codes: EN 1993-1-3.

Initial data file:

Task 2.2.sav; report – Report 2.2.doc

Program version: MAGNUM 23.1.1.3, 07.02.2024

Initial data:

fy  = 355 N/mm2 Yield strength
h = 180 mm Section height (along the outer edge)
b = 175 mm Flange width (along the outer edge)
c = 95 mm Flange bend length (along the outer edge)
t = 3 mm Profile thickness (minus the coating thickness)
r = 3.5 mm Fillet radius (inner)

 

Results in MAGNUM:

Steel: S355

Section

h = 175 mm
b = 180 mm
s = 3 mm
a = 95 mm
r = 3,5 mm

 

Comparison of solutions

Geometric property

[1], p. 175

MAGNUM, EN1993-1-1

%

Gross cross-sectional area, mm2

1188.26

1229,7

3.37