Free of shrinkage tension stiffening relationships derived from RC beam tests

Abstract

Present research has been pursuing the following objectives: 1) extension of the applicability of a technique, proposed by the first author for deriving free of shrinkage tension stiffening relationships from flexural RC member tests; 2) investigation of concrete shrinkage effect on cracking, tension stiffening and short-team deformations of flexural members. The proposed technique is based on smeared crack approach and layer model. Based on the proposed techniques, free of shrinkage tension stiffening relationships were derived from experimental moment-curvature diagrams of RC beams reported in the literature. Shrinkage influence on stress-strain state of RC members has been also investigated.