Rapid Repair of Severely Damaged RC Columns with Different Damage Conditions: An Experimental Study

International Journal of Concrete Structures and Materials

Table 1 Summary of damage to original columns.

Column	T/M	Concrete damage		Reinforcing bar damage
		Concrete damage		Longitudinal			Ties^a
		Cover spall	Core crush	Yield	Buckle	Fracture	Ties^a
Column 1	0	25 in. (635 mm) above column base	10 in. (260 mm) above column base	All bars	All bars, 10 in. (260 mm) above column base	2 bars; 10 in. (260 mm) above column base (see Fig. 1)	4 ties
Column 2	0.2	37 in. (950 mm) above column base	20 in. (500 mm) above column base	All bars	10 bars, 20 in. (500 mm) above column base	None	3 ties
Column 3	0.4	58 in. (1,470 mm) above column base	30 in. (760 mm) above column base	All bars	10 bars, 30 in. (760 mm) above column base	None	1 tie
Column 4	0.6	94 in. (2,380 mm) above column base	40 in. (1,020 mm) above column base	All bars	10 bars, 40 in. (1,020 mm) above column base	None	1 tie
Column 5	∞	120 in. (3,050 mm) above column base	64 in. (1,620 mm) above column base	2 bars	None	None	0 tie