Modeling of the Axial Load Capacity of RC Columns Strengthened with Steel Jacketing under Preloading Based on FE Simulation

Table 4

Summary of RC columns strengthened with steel jacketing in the present study.

Column specimen	% preloading	Eurocode (kN)	FE failure load (kN)	Increase in failure load (kN)	Area of steel jacketing, (mm^2)	Steel jacketing stress, (MPa)	(MPa)
Col.00	0.0	1250.7	1230	0.0	0.0	0.0	0.0	0.0
Col.01.L.3P	0.0	1934.7	1900	670	1900	353	360	0.981
N1	0.0	1432.4	1487.5	0.0	0.0	0.0	0.0	0.0
SCW1	0.0	2145.8	2213	725.5	1719	422	415	1.016
Control-300	0.0	3026.9	3000	0.0	0.0	0.0	360	0.0
Str.300.L50.P00	0.0	4322.9	4290	1290	3600	359	360	0.997
Str.300.L50.P22	22	4322.9	4200	1200	3600	334	360	0.928
Str.300.L50.P43	43	4322.9	4050	1050	3600	292	360	0.811
Str.300.L50.P85	85	4322.9	3570	570	3600	159	360	0.442
Str.300.L50.P94	94	4322.9	3360	360	3600	100	360	0.278
Str.300.L100.P00	0.0	5762.9	5820	2820	7600	371	360	1.030
Str.300.L100.P22	22	5762.9	5550	2550	7600	336	360	0.933
Str.300.L100.P43	43	5762.9	5250	2250	7600	296	360	0.822
Str.300.L100.P85	85	5762.9	4260	1260	7600	166	360	0.461
Str.300.L100.P94	94	5762.9	3810	810	7600	107	360	0.297
Control-400	0.0	6613.0	6545	0	0.0	0.0	0.0	0.0
Str.400.L100.P37	37	9805.0	9185	2640	7600	347	420	0.826