RIGITY CONTROL OF REINFORCED-CONCRETE CONNECTION ELEMENTS USING DYNAMIC CRITERION - NONLINEAR DISTORTION COEFFICIENT
Article describes the results of tests of reinforced-concrete beams of two types: with variable initial tangent modulus of elasticity of reinforced-concrete at fixed area of lateral working reinforcement; with variable area of working reinforcement at fixed initial tangent modulus of elasticity of reinforced-concrete. It is proved that new for the building constructions dynamic parameter - nonlinear distortion coefficient can be examined as independent criterion for reinforced- concrete beams evaluation quality. This parameter is considered to be much more sensitive to defects and damages, than basic frequency of beam vibrations.