Cracking of concrete caused by early age volume changes such as shrinkage and thermal deformati on is always a problem for cast-in-place concrete structures. Such premature cracki ng affects the serviceability, durability, and even safety of the concrete structure. Integrated analysis is preformed for deformation-caused cracking from the aspects of materials, structures and constructions. Based on the bond-slip theory, cracki ng mechanism and parameters are analyzed and calculated for the axial restrained reinforced concrete members, and finally the differences in mechanical properties between load-caused and deformation-caused crackings are compared.
[4] Pigon M. Equipment for the Analysis of the Behavior of Concrete Under Restrained Shrinkage at Early-Ages [J]. Magazine of Concrete Research, 2000, 52(4): 297-302.
[5] Gilbert R L. Shrinkage, Cracking and Deflection-the Serviceability of Concrete Structures [J]. Electronic Journal of Structural Engineering, 2001, 1(1): 2-14.
[6] Sule M, Breugel K Van. Cracking Behavior of Reinforced Concrete Subjected to Early-age Shrinkage[J]. Materials and Structures, 2005, 34(7): 284-292.