Calculation on Bending Stiffness of RC Short Beam Strengthened by CFRP

Table 5

Experimental and calculated values of cracking moment, yield moment, and ultimate moment of member (unit: kN·m).

Beam ID
	Exp.	Cal.	Ratio	Exp.	Cal.	Ratio	Exp.	Cal.	Ratio
B-0-30-4	22.17	21.24	1.044	50.99	152.51	0.971	74.33	71.73	1.036
B-1-30-4	33.33	28.91	1.153	62.95	59.77	1.053	94.00	95.62	0.983
B-2-30-4	32.67	26.13	1.250	63.42	65.97	0.961	118.33	114.24	1.036
B-1-20-4	27.67	25.27	1.095	51.47	59.41	0.866	94.33	93.59	1.008
B-1-40-4	38.33	32.25	1.188	56.82	59.89	0.949	101.00	97.93	1.031
B-1-30-6	27.50	22.98	1.196	98.26	102.86	0.955	119.63	120.48	0.993
B-1-30-8	30.67	27.63	1.110	108.33	107.53	1.008	123.80	128.48	0.964
Mean value	30.33	26.34	1.148	70.32	86.85	0.966	103.63	103.15	1.007
Mean-square deviation	5.17	3.69	0.070	23.23	35.69	0.057	17.91	19.27	0.029
Coefficient of variation	0.17	0.14	0.061	0.33	0.41	0.059	0.17	0.19	0.028

denotes cracking moment. denotes yield moment. denotes ultimate moment.