Ductility Design of Reinforced Very-High Strength Concrete Columns (100–150 MPa) Using Curvature and Energy-Based Ductility Indices

International Journal of Concrete Structures and Materials

Table 3 Experimental results for curvature ductility of VHSC columns.

Sample name	s (mm)	ρ_sh (%)	f_r (MPa)	P/A_sf_c	f_c (MPa)	b (mm)	d (mm)	Cover (mm)	d_l (mm)	d_h (mm)	f_syh (MPa)	f_syl (MPa)	ε_s	ε_u	ε_uh	k_e	A_sl (mm²)	ρ_sl	µ_φ,exp	µ_φ,ana
Azizinamini et al. (1994)
D60-15-4	67	2.7	3.9	0.19	101	300	300	15.6	20	12.7	413	413	0.015	0.02	0.2	0.69	2389	0.027	15	13
D120-15-3B	67	2.4	5.8	0.19	101	300	300	15.6	20	9.5	752	413	0.015	0.02	0.14	0.66	2389	0.027	20	17
D120-15-3C	41	3.8	10.5	0.19	101	300	300	15.6	20	9.5	752	413	0.015	0.02	0.14	0.73	2389	0.027	20	–
D60-15-3A	41	3.8	5.8	0.28	100	300	300	15.6	20	9.5	413	413	0.015	0.02	0.2	0.73	2389	0.027	15	16
Bayrak and Sheikh (1998)
AS-7HT	94	2.72	4.5	0.45	102	305	305	15.6	20	11.3	542	454	0.015	0.13	0.155	0.61	2400	0.026	7.2	8.0
AS-5HT	90	4.8	7.1	0.45	102	305	305	15.6	20	11.3/16	542	454	0.015	0.13	0.155	0.62	2400	0.026	9.6	9.0
AS-6HT	76	6.74	10.6	0.46	102	305	305	15.6	20	16.0	463	454	0.015	0.13	0.113	0.68	2400	0.026	14	11.5
ES-8HT	70	4.29	6.9	0.47	102	305	305	15.6	20	16.0	463	454	0.015	0.13	0.113	0.69	2400	0.026	6.7	5.3
Légeron and Paultre (2000), Paultre et al. (2001)
C100BH55N40	55	3.30	9.6	0.35	110	305	305	12.5	20\16	9.5	825	450	0.007	0.11	0.065	0.71	2000	0.021	8	8.4
C100B130N40	130	1.96	2.1	0.37	104	305	305	12.5	20\16	11.3	418	450	0.007	0.11	0.136	0.52	2000	0.021	2.9	3.8
C100BH80N40	80	2.27	6.0	0.37	104	305	305	12.5	20\16	9.5	825	450	0.007	0.11	0.065	0.64	2000	0.021	4.6	5.5
C100B60N40	60	4.26	6.3	0.39	98	305	305	12.5	20\16	11.3	418	450	0.007	0.11	0.136	0.70	2000	0.021	7.6	6.9
C120B60N40	60	4.26	6.6	0.41	109	305	305	12.5	20\16	11.3	438	450	0.007	0.11	0.136	0.70	2000	0.021	5.2	7.0
C100B60N52	60	4.26	7.4	0.51	109	305	305	12.5	20\16	11.3	492	450	0.007	0.11	0.136	0.70	2000	0.021	5.7	5.0
Paultre and Légeron (2008)
C100B130N25	130	1.96	2.0	0.24	97.7	305	305	12.5	20\16	11.3	391	475	0.007	0.11	0.136	0.52	2000	0.021	3.3	3.8