Improved Fastener-Based Modelling Method for Reinforced Cold-Formed Steel Shear Walls

Table 5

Details of sixteen numerical models.

Model number	Opening size (b × h/d)/m	r (%)	Fpc (kN)			b/d	Schematic
			FEM	SC	λ (%)
IW1	0.9 × 2.4/0.6	20.0	97.3		4.1	1.5
IW2	0.9 × 2.7/0.3	22.5	93.0	85.5	8.8	3.0
IW3	1.2 × 2.4/0.6	26.7	91.5	95.9	4.6	2.0
IW4	1.5 × 2.4/0.6	33.3	82.9	86.2	3.8	2.5
IW5	1.8 × 2.4/0.6	40.0	72.7	76.7	5.2	3.0
IW6	1.2 × 2.7/0.3	30.0	87.3	90.1	3.1	4.0
IW7	1.5 × 2.7/0.3	37.5	73.8	81.1	9.0	5.0
IW8	1.8 × 2.7/0.3	45.0	66.1	55.6 (50.8)	18.9	6.0
OW1	0.9 × 1.5/0.6	12.5	122.5	^#	3.2	1.5
OW2	1.2 × 1.5/0.6	16.7	112.8	119.4	5.5	2.0
OW3	1.5 × 1.5/0.6	20.8	103.0	107.2	3.9	2.5
OW4	1.8 × 1.5/0.6	25.0	93.7	95.4	1.8	3.0
OW5	0.9 × 1.8/0.3	15.0	110.2	103.9	6.1	3.0
OW6	1.2 × 1.8/0.3	20.0	98.8	92.8	6.5	4.0
OW7	1.5 × 1.8/0.3	25.0	84.9	81.9	3.7	5.0
OW8	1.8 × 1.8/0.3	30.0	75.5	69.2 (63.2)	9.1	6.0

r = (b × h)/(B × H) is the area ratio of the opening to that of the wall; F_pc represents the calculated shear capacities, including the simulated results (FEM) and simplified calculated (SC) results calculated by the simplified method [18], and λ is the absolute value of the relative error between FEM and SC; “” and “^#” indicate the shear capacities of specimens RW1 and RW2 without an opening, respectively; and the values in the brackets are the relative shear strength corresponding to the net sheathed wall length except for the wall segment over the opening.