Behaviour and Failure of Steel Columns Subjected to Blast Loads: Numerical Study and Analytical Approach

Table 1

Geometrical properties, loading conditions, and test results of the steel columns used in the validations [4].

Test symbol	Section	Blast direction	kL/r	Paxial (N)	Pmax (N/mm^2)	td (ms)	Impulse (I) ((N/mm^2) × sec)	Δmax (mm)
4C1	W150 × 24	x-x	38	270000	4.283	2.1	0.003174	60.4
5C1	W200 × 71	x-x	27	640000	2.098	8.4	0.003144	32.8

P_max = maximum value of blast pressure (N/mm²); t_d = time duration of the positive blast pressure; instability deformation; yielding and plastic deformation.