Comparison of Design Guidelines for Hot-Rolled I-Shaped Steel Compression Members according to AISC 360-16 and EC3

Table 4

The smallest buckling lengths () and member slendernesses (/i) at which the effective cross section of a slender-element/Class 4 section is equal to its gross area (i.e., A_e = A_g). The values listed for EC3 are computed applying the class change allowed in Clause 5.5.1(9) in EC3.

Section	Steel grade	AISC 360-16		EC3
		(m)	/i	(m)	/i
IPE300; IPE330; IPE360; IPE400; IPE450; IPE500; IPE550; IPE600	S355	—; 0.848; 1.44; 1.87; 2.43; 2.87; 3.03; 3.33	—; 23.9; 37.9; 47.4; 58.9; 66.5; 68.2; 71.4	0.849; 1.29; 1.73; 2.09; 2.55; 2.92; 3.08; 3.34	25.3; 36.4; 45.7; 52.9; 61.8; 67.8; 69.2; 71.7
HEA550; HEA600; HEA650; HEA700; HEA800; HEA900; HEA1000	S355	—; 2.71; 3.80; 4.00; 5.30; 5.88; 6.52	—; 38.4; 54.6; 58.0; 79.8; 90.5; 103	1.83; 3.25; 4.07; 4.18; 5.23; 5.73; 6.36	25.6; 46.1; 58.4; 61.1; 78.7; 88.2; 100
HEB700; HEB800; HEB900; HEB1000	S355	—; 3.18; 4.30; 5.26	—; 47.6; 65.8; 82.5	1.10; 3.54; 4.39; 5.17	16.1; 53.0; 67.2; 81.0
HEM900; HEM1000	S355	2.05; 4.15	31.0; 64.4	2.70; 4.26	40.9; 66.1
HD260 × 54.1; HD340 × 74.2	S460	3.63; 4.08	57.0; 56.4	2.91; 3.32	45.8; 45.9