Study of crack formation and limit equilibrium of reinforced concrete florr slab shell

Introduction. Experimental studies of crack formation and limit equilibrium a reinforced concrete floor slab-shell, developed by the authors, were carried out. Materials methods . The out on models made scale 1:5. Results. During tests, three stages stress-strain state established: first is elastic stage tensile work in lower part longitudinal contour ribs; second opening cracks; third destruction. Discussion conclusions observed from beginning loading until moment cracks ribs, between end destruction during flange ribs models.