Lateral resistance of mass timber shear wall connected by withdrawal-type connectors

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 2 Mechanical properties of tested Ply-lam shear wall according to CUREE load protocol in ASTM E2126

No.	Test ID	Strength				Stiffness			Ductility
		v_peak^a	P_yield^b	P_peak^c	P_u^d	Ke^e	G′ at 0.4 P_peak^f	G′ at P_peak^g	D_e^h	D_yieldⁱ	D_peak^j	D_u^k	A^l	D^m
		(kN/m)	(kN)	(kN)	(kN)	(kN/m)	(kN/m)	(kN/m)	(mm)	(mm)	(mm)	(mm)	(kN mm)	D^m
1	Sⁿ_F2^o_0kN^p	11.7	12.0	14.0	12.0	972.4	2187.9	1271.8	5.8	12.3	24.8	30.8	295.9	2.5
2	S_F2_24kN	19.3	19.7	23.2	18.8	1956.0	4401.0	1737.9	4.7	10.1	30.0	51.6	917.5	5.1
3	S_F2_120kN	37.3	38.3	44.8	38.0	6755.3	15,199.5	2802.8	2.7	5.7	35.9	54.0	1961.3	9.5
4	S_F4_24kN	34.8	34.5	41.7	33.4	1883.8	4238.6	2217.2	8.9	18.3	42.3	57.7	1672.5	3.2
5	W2_F2_24kN	21.4	21.3	25.7	20.5	2081.4	4683.0	1660.7	4.9	10.2	34.8	49.4	942.9	4.8
6	W2_F4_24kN	31.4	33.3	37.7	30.2	1532.2	3447.5	1587.6	9.8	21.7	53.4	57.5	1552.3	2.6
7	W4_F4_24kN	29.4	31.5	35.3	28.2	1031.8	2321.6	1782.7	13.7	30.5	44.6	60.4	1421.3	2.0

^aShear strength: the maximum load (P_peak) per unit specimen length
^bYield load calculated by equivalent energy elastic–plastic (EEEP) curve
^cMaximum load
^dFailure load
^eElastic shear stiffness
^fSecant shear modulus at 0.4 P_peak
^gSecant shear modulus at P_peak
^hDisplacement of the top edge of the specimen at 0.4 P_peak
ⁱYield displacement
^jMaximum displacement
^kUltimate displacement
^lThe area under envelope curve from zero to ultimate diaplacement
^mDuctility ratio: the ratio of the ultimate displacement and the yield displacement of a specimen
ⁿWall configurations: S = single wall, W2 = two-wall panels connected by 2 connectors, W4 = two-wall panels connected by 4 connectors
^oThe number of wall-to-floor connectors: F2 = two connectors, F4 = four connectors
^pApplied vertical load on top of shear wall specimens