Predicting Shear Capacity of FRP-Reinforced Concrete Beams without Stirrups by Artificial Neural Networks, Gene Expression Programming, and Regression Analysis

Table 1

Shear design equations for FRP-RC beams without stirrups.

Reference	Provisions
[12]	, , ,
[13]	; ; ; = 1.0 for sections without the axial force, = member safety factor, = 1.3
[14]	should not be taken greater than 3, and should not be taken if less than 1 for members with shear reinforcement
[15]	; ; ; , where
[16]	For sections with an effective depth greater than 300 mm, the concrete shear resistance, , is taken as ; Where λ = modification factor for density of concrete and φc = resistance factor for concrete
[17]	Satisfying the limitation: ≤ 1; Where = design shear stress, MPa, defined as 0.25fct; fct = characteristic tensile strength of concrete (5% fractile), MPa, ; γc = is the strength safety factor f concrete, γc = 1.6; k = factor taken equal to in members where more than 50% of the bottom reinforcement is interrupted; if not, it will be ; = depth in meters; ρ1 = (Af/bwd) which cannot be taken less than 0.01 and greater than 0.02
[18]	, , Such that , for ≤ 60 MPa; In members with effective depth greater than 300 mm and with transverse reinforcement less than the minimum, should be multiplied by
[4]
[7]	, c0 = 7.696, c1 = 7.254, c2 = 7.718
[19]	, , , ,
[1]
[20]	,
[21]	,