Predictable Behavior of GFRP-Reinforced Bridge Decks: Formulation of a Strain-Based Capacity Model

Table 1

Parameters of deck design and uncertainties of demand.

Parameter	Mean	Standard deviation	COV	Distribution	Descriptions	Source
(MPa); 27.5	1.24; 34.1	6.34	0.15	Lognormal	Compressive strength	[21]
(mm)	38.1	1.9	0.05	Lognormal	Clear cover	[54]
(mm)	Varied (μ)	3.96	1/(6.4 μ)	Normal	Concrete deck depth	[55]
(mm)	0.99	—	0.04	Normal	Effective depth	[56]
(mm)	25	N.A.	N.A.	Deterministic	Max. aggregate size	[36]
(mm)		N.A.	N.A.	Normal	Shear effective depth	[57]
	1.0	0.25	—	Lognormal	Uncertainty factor for asphalt weight	[58]
	1.05	0.11	—	Lognormal	Uncertainty factor for concrete weight
	0.60	0.20	—	Lognormal	Uncertainty factor for truck
	0.8	—	—	Deterministic	Continuity factor
(mm)	50	—	—	Deterministic	Asphalt thickness
, (m)	2.36	—	—	Deterministic	Span length of slab
(kN)	71.17	—	—	Deterministic	Wheel load of HS 20 truck
, m (ft.)	0.9	0.56	0.61	Lognormal	Shear span for girder spacing (1.8 m)	Authors’ assumption
	1.2	0.72			Shear span for girder spacing (2.4 m)
	1.8	1.12			Shear span for girder spacing (3.7 m)

Note:  = nominal effective depth