Experimental and Analytical Investigation of Shear Behavior and Strength of Haunched Beams Reinforced with Basalt Fiber–Reinforced Polymer Rebars

Data Availability Statement

Notations

A_f

area of longitudinal BFRP reinforcement (mm²);

A_fv

area of BFRP stirrups (mm²);

A_v

area of steel stirrups (mm²);

a

shear span (mm);

a_c

depth of the compression block (mm);

b

width of the beam (mm);

d_cr

critical effective depth (mm);

d_maximum

maximum effective depth (mm);

d_minimum

minimum effective depth (mm);

E_c

modulus of elasticity of concrete (GPa);

E_f

modulus of elasticity of longitudinal BFRP reinforcement (GPa);

E_fv

modulus of elasticity of BFRP stirrups (GPa);

E_s

modulus of elasticity of longitudinal steel reinforcement (GPa);

$f_c^{\mathrm{\prime }}$

cylindrical concrete compressive strength (MPa);

f_ct

concrete indirect tensile strength (MPa);

f_cu

cube concrete compressive strength (MPa);

f_f

design strength of longitudinal BFRP bars (MPa);

f_fu

ultimate longitudinal BFRP strength (MPa);

f_fv

design strength of BFRP stirrups (MPa);

f_r

modulus of the rapture of concrete (MPa);

f_uv

ultimate strength of BFRP stirrups (MPa);

HL

horizontal length of the haunched part (mm);

HL/a

ratio of the haunched length to the shear span;

h_maximum

maximum height of the beams (mm);

h_minimum

minimum height of the beams (mm);

M_cr

critical nominal moment capacity;

r_b/d_b

ratio of radius to the diameter of stirrups;

STD

standard deviation;

s

center-to-center space of stirrups (mm);

V_cf

concrete shear strength of BFRP beams (kN);

V_cf(H)

concrete shear strength of BFRP beams-haunched part (kN);

V_cf(P)

concrete shear strength of BFRP beams-prismatic part (kN);

V_exp

experimental shear strength of BFRP beams (kN);

V_f

ultimate predicted capacity of BFRP beams (kN);

V_fv

ultimate predicted capacity of BFRP stirrups (kN);

V_fv-exp

experimental capacity of pure BFRP stirrups (kN);

Z_cr

lever arm between the center of tension side and the center of compression concrete blocks (mm);

α

tapered or inclination angle (°);

δ_s

residual error;

μ

average ratio of predicted shear strength to actual shear strength;

ρ_f

BFRP longitudinal reinforcement ratio; and

ρ_fv

BFRP web reinforcement ratio.

References