import math


def A12_5_3_3(Pv, A, Fy, GammaRTv = 1.05):
    """
    A.12.5.3.3 Beam shear strength check
    
    Pv = representative shear strength
    A  = total cross-sectional area
    GammaRTv = partial resistance factor for beam
               shear strength, 1,05
    """
    # Pv = representative shear strength
    _Pv = A * Fy / (2 * math.sqrt(3))
    # Tubular members subjected to beam shear forces 
    # should satisfy:
    _V = _Pv / GammaRTv      # (A.12.5-13)
    #
    return _V
    #