THEORETICAL FORMULATION ON REDISTRIBUTION OF TENSILE FORCE CONSIDERING THERMAL EXPANSION IN HEATED TENDONS

Abstract

In Japan, to raise the reliability of the evaluation method on remaining tensile force in tendons of pre-stressed concrete containment vessels (PCCV) under long-term behavior, an evaluation method considering the redistribution effects by tensile force is proposed. Results from the proposed theoretical formula of friction considering thermal expansion and those of the past thermal experiment were compared. The proposed theoretical formula explains the experiment results on both the tensile strain distribution in the tendon, and temperature - strain relations.