CALCULATION OF FIBER-REINFORCED CONCRETE STRUCTURES TAKING INTO ACCOUNT PHYSICAL NONLINEARITY

The availability of information about the physical and mechanical properties fiber-reinforced concrete allows to calculate structures based on it with a proper approximation reality. experimental data elastic modulus first second kind, Poisson's ratio, tensile compressive strength limits for characteristic fiber lengths percentage reinforcement by weight are condition creating an algorithm calculating such structures. This is facilitated transition from linear formulation problem consideration nonlinearity. In framework software systems finite element model deformable body, iterative process acceptable, due convergence solution. proposed method additional loads in interpretation leaves accumulated experience computer-aided design. calculation procedure contains cycles gradual modules their true value as result solution problem. criterion has energy nature. dependencies mechanics solid. gives fundamental character effect demonstrated example buried cylindrical tank made glass-fiber liquid. addition glass fibers leads improvement resistance cracking decrease amount crack opening.