FIELD: construction industry. SUBSTANCE: invention can be used to determine cracks in extended zone of reinforced concrete structures of type of beam. Tested structure is deformed by constant load 5-10 times, average values of relative deformation in stretched fittings and compressed zone of concrete. Bending moments on supporting ends are found graphically with the use of average values. Stiffness of supporting fixings is determined theoretically on their basis. EFFECT: increased accuracy in determination of carrying capacity of operating structures with due account of stiffness of supporting fixings of members. 6 dwg
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