Method of controlling reactive stresses when joining reinforced concrete constructions with pool welding due to forcedly formed weld

Abstract

Abstract The paper deals with a method of controlling stretching reactive stresses in reinforced concrete constructions. These deformations are caused by pool welding with forced weld formation in fabricated forms. This method does not require precise measuring and labour-intensive preparatory efforts and experiments. Reactive stresses are experimentally determined after welding the protruding bars of rigid reinforced constructions. The concentrator is used outside the heat-affected area (i.e. far from the welded joint). Reactive strains are determined on the basis of the calculated connection between the level of reactive stresses σw and the limiting cut depth lc. This method is used to determine the level of reactive stresses in the protruding bars of reinforced concrete constructions after certain modes of welding and to establish the optimum welding conditions to obtain the required values of reactive stresses σw.