Enhancing the Performance of Knee Beam–Column Joint Using Hybrid Fibers Reinforced Concrete

International Journal of Concrete Structures and Materials

Table 9 Knee joint experimental and numerical comparison in closing and opening actions

Specimen	Verification	Peak load (kN)	Percentage difference (%)	Peak load displacement (mm)	Percentage difference (%)	Maximum displacement (mm)		Percentage difference (%)
Closing action (+)
FFC	Experimental	128.56	12.18	59.45	8.98	80.03		0.30
FFC	Numerical	145.24	12.18	65.04	8.98	80.27		0.30
F6U3	Experimental	146.86	31.31	69.62	0.47	99.50		0.30
F6U3	Numerical	107.10	31.31	69.95	0.47	99.80		0.30
F6S3	Experimental	120.03	30.05	79.96	6.03	99.85		0.03
F6S3	Numerical	88.67	30.05	84.93	6.03	99.82		0.03
F6E3	Experimental	123.60	29.10	84.28	0.78	99.64		0.12
F6E3	Numerical	92.20	29.10	84.94	0.78	99.76		0.12
F6N3	Experimental	147.47	26.82	104.56	0.99	104.75		0.14
F6N3	Numerical	112.60	26.82	103.53	0.99	104.60		0.14
Opening action (−)
FFC	Experimental	69.07	2.15	79.19	15.16		79.99	4.54
FFC	Numerical	70.57	2.15	68.03	15.16		76.44	4.54
F6U3	Experimental	78.50	28.28	79.21	1.74		99.83	1.21
F6U3	Numerical	59.05	28.28	77.84	1.74		98.63	1.21
F6S3	Experimental	71.39	29.46	84.29	0.79		99.85	0.33
F6S3	Numerical	53.06	29.46	84.96	0.79		99.52	0.33
F6E3	Experimental	89.42	20.50	79.23	0.46		99.81	0.31
F6E3	Numerical	68.92	20.50	78.87	0.46		99.50	0.31
F6N3	Experimental	75.54	25.98	94.42	0.79		104.74	0.01
F6N3	Numerical	58.17	25.98	93.68	0.79		104.73	0.01