Under DevelopmentPlease cite this work as:Stefanidou, S., Paraskevopoulos, E., Papanikolaou, V., Kappos, A.J. "An online platform for bridge-specific fragility analysis of as-built and retrofitted bridges", Bulletin of Earthquake Engineering, 20, 1717-1737 (2022). https://doi.org/10.1007/s10518-021-01299-3

The Bridge Database - ESPA

Closed form relationships: Cylindrical Piers – Retrofitted with R/C jackets

Parameters	Values
D_core(m)	1.50	3.0
D_jack(m)	0.10	0.20	0.30
ρ_l,core	0.005	0.020.
ρ_w,core	0.0075	0.012
ρ_l,jacket	0.01	0.025
ρ_w,jacket	0.009	0.015
f_c,core(MPa)	16	25	30
f_y,core(MPa)	220	400	500
f_c,jacket(MPa)	30	40	45
f_y,jacket(MPa)	500
v	0.15	0.30
Combinations Number: 5184

Closed-form relationships M-phi

φ_y,RCjacket/φ_y,core Calculation

	β₀	β₁	β₂	β₃	β₄	β₅
φ_y,RCjacket/φ_y,core	0.515	0.011	0.145	0.014	-0.159	0.473

Please fill in the following parameters and press "Calculate".

φ_y,RCjacket/φ_y,core :

φ_u,RCjacket/φ_u,core Calculation

	β₀	β₁	β₂	β₃	β₄	β₅
φ_u,RCjacket/φ_u,core	-0.955	1.58	0.024	0.169	-0.201	0.383

Please fill in the following parameters and press "Calculate".

φ_u,RCjacket/φ_u,core :

M_y,RCjacket/M_y,core Calculation

	β₀	β₁	β₂	β₃	β₄	β₅
M_y,RCjacket/M_y,core	-4.213	4.16	0.296	-0.044	0.097	0.253

Please fill in the following parameters and press "Calculate".

M_y,RCjacket/M_y,core :

M_u,RCjacket/M_u,core Calculation

	β₀	β₁	β₂	β₃	β₄	β₅
M_u,RCjacket/M_u,core	-4.257	4.727	0.284	-0.056	0.065	0.237

Please fill in the following parameters and press "Calculate".

M_u,RCjacket/M_u,core :

Closed-form relationships d/h

(d_1,RCjacket/H)/(d_1,core/H) Calculation

	β₀	β₁	β₂	β₃	β₄	β₅
(d_1,RCjacket/H)/(d_1,core/H)	0.566	0.059	0.129	0.016	-0.169	0.399

Please fill in the following parameters and press "Calculate".

(d_1,RCjacket/H)/(d_1,core/H) :

(d_2,RCjacket/H)/(d_2,core/H) Calculation

	β₀	β₁	β₂	β₃	β₄	β₅
(d_2,RCjacket/H)/(d_2,core/H)	1.167	-0.353	0.012	0.007	0.002	0.164

Please fill in the following parameters and press "Calculate".

(d_2,RCjacket/H)/(d_2,core/H) :

(d_3,RCjacket/H)/(d_3,core/H) Calculation

	β₀	β₁	β₂	β₃	β₄	β₅
(d_3,RCjacket/H)/(d_3,core/H)	0.802	-0.212	-0.013	0.219	-0.324	0.528

Please fill in the following parameters and press "Calculate".

(d_3,RCjacket/H)/(d_3,core/H) :

(d_4,RCjacket/H)/(d_4,core/H) Calculation

	β₀	β₁	β₂	β₃	β₄	β₅
(d_4,RCjacket/H)/(d_4,core/H)	1.094	-0.274	0.003	0.124	-0.334	0.388

Please fill in the following parameters and press "Calculate".

(d_4,RCjacket/H)/(d_4,core/H) :