METHOD OF MEASUREMENT OF INITIAL STRESSED STATE OF REINFORCEMENT OF USED REINFORCED CONCRETE STRUCTURE

摘要

FIELD: deformation measurement. SUBSTANCE: method of measurement of initial stressed state of reinforcement of used reinforced concrete structure which body is invaluable for direct measurement consists in formation of two toothings in zone of occurrence of crack with mounting of resistance strain gauges on one of them with subsequent cutting of reinforcement in the other one and in measurement of stresses of reinforcement. Then sequential opening of concrete layer with opening of reinforcement between toothings is conducted and its stressed state is measured up to complete integration of two toothing into one toothing with final measurement of stress. It should be noted that resistance strain gauges are placed in diametrical opposition and toothings are made at distance of length of anchoring. EFFECT: enhanced accuracy of determination of initial stressed state of reinforcement of used concrete structure.