A Modified Model for Deflection Calculation of Reinforced Concrete Beam with Deformed GFRP Rebar

Table 1

Mechanical properties of the GFRP bar used in this study.

Average tensile strength (MPa)	Guaranteed tensile strength (MPa)	Guaranteed ultimate strain (%)	Design tensile strength (MPa)	Design rupture strain (%)	Modulus of elasticity (GPa)
841.0 ± 23.6	770.2	1.65	539.1	1.16	42.1

ACI Committee 440 [2]: average – 3 standard deviation.
Environmental reduction factor () is applied with 0.7, exposed to earth and weather.