RCCOLA

The computer program RCCOLA will evaluate the general flexural characteristics of reinforced concrete cross-sections subjected to axial forces and uniaxial bending moments. The constituent relationships considered for the concrete and reinforcement are general, single-valued functions of strain (i.e., stress unloading not considered). The geometry of the section may be arbitrary, except that an axis of symmetry must exist perpendicular to the neutral axis of the section. Plane sections are assumed to remain plane after deformation, and bond slip between the concrete and the reinforcement is disregarded. For each combination of axial load and concrete strain (in the extreme compression fiber) specified by the user, the following are evaluated: (1) the shear strength near the section according to ACI recommendations, (2) the moment at the end of an asymmetrically loaded member that corresponds to this shear strength, and (3) the moment capacities corresponding to (a) tensile yielding in the reinforcement, (b) compression yielding in the reinforcement, and (c) fracture of the tensile reinforcement.