Research Article
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) |
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Note: = nominal effective depth |