Investigation of Axial Strengthened Reinforced Concrete Columns under Lateral Blast Loading

Table 1

Specifications of models (dimensions: mm).

Model	Strengthening configuration	Longitudinal and transverse reinforcement	Dimensions
Col-0	Without strengthening	4 ϕ 12 - ϕ 8 @ 100	200 × 200 × 1200
Col-1	Steel angles; 4 L 50 × 50 × 5 + 3 × 4 plates 150 × 100 × 2	4 ϕ 12 - ϕ 8 @ 100	200 × 200 × 1200
Col-2	Steel angles; 4 L 50 × 50 × 5 + 3 × 4 plates 150 × 50 × 2	4 ϕ 12 - ϕ 8 @ 100	200 × 200 × 1200
Col-3	Steel channels; 2C (206 × 50)/(3.1 × 3.1) + 3 × 4 plates 150 × 100 × 2	4 ϕ 12 - ϕ 8 @ 100	200 × 200 × 1200
Col-4	Steel channels; 2C (206 × 50)/(3.1 × 3.1) + 3 × 4 plates 150 × 50 × 2	4 ϕ 12 - ϕ 8 @ 100	200 × 200 × 1200
Col-5	Complete steel jacket (steel plates); 4 × 4 plates 200 × 2.4	4 ϕ 12 - ϕ 8 @ 100	200 × 200 × 1200