Table 6.

Statistical indices of developed database (COV represents the coefficient of variance and St. Dev represents the standard deviation).

Parameter	B (mm)	D (mm)	H (mm)	Ag (mm2)	fc’ (MPa)	${\mathit{f}}_{\mathit{u}}$ (MPa)	${\mathit{E}}_{\mathit{f}}$ (GPa)	${\mathit{\epsilon }}_{\mathit{u}}$ (%)	${\rho }_1$ (%)	${\mathit{\rho }}_{\mathit{t}}$ (%)	Af (mm2)	${\mathit{P}}_{\mathit{n}}$ (kN)
Minimum	150	150	150	17,662	20.0	406	23.4	0.97	0.55	0.01	212.53	114
Maximum	610	305	610	372,100	70.2	1680	141	2.42	5.3	5.3	4051.60	15,235
Mean	249	258	272	66,289	36.2	1010	56.7	1.78	2.09	1.38	1214.58	1814
St. Dev	114	54	114	53,039	12.6	339	25.1	0.39	1.06	1.06	764.62	1877
COV	0.46	0.21	0.43	0.81	0.35	0.34	0.45	0.22	0.51	0.77	0.63	1.04