THE METHOD OF DEFINING DEFORMATION PARAMETERS AND CRACK RESISTANCE OF COMPOSITE REINFORCED CONCRETE CONSTRUCTIONS UNDER THE ACTION TORSION WITH BENDING
It is presented the method, calculation models and algorithm for calculation parameters of deformation and fracture resistance of composite reinforced concrete constructions under the action torsion with bending. The basis of the proposed classification of discrete cracks is laid: the decomposition method, geometric, power and inter-median (contact of different concrete) concentration of stress-strain state. There are proposed calculated models of various levels with complete picture of cracks and their projections on the plane in the form of the function of many variables, with the corresponding design cross-sections for the determination of the stress-strain state of which attracted the capabilities of modern software complexes. The calculated deformation model of tight-stressed reinforced concrete constructions allows to take into account the effect of violation of concrete continuity, inconsistency of concrete deformations and reinforcement, intermediate perturbation in the contact between the concrete. At the same time, the width of the cracks opening is determined along the entire profile of the crack, taking into account the level change of the distance between them.