STUDY ON EVALUATION METHOD OF DAMAGE REGION AND FAILURE CRITERION OF RC MEMBER FAILED IN SHEAR COMPRESSION BY MEANS OF STRAIN INDEX

Abstract

 In this study, damaged areas of RC beams failed in shear compression were experimentally evaluated by means of acrylic lattice method which can measure planar strain distribution. Three-dimensional nonlinear finite element analysis was also conducted in order to verify the damage evaluation method and failure criteria of RC members failed in shear compression. As the result, damage region were evaluated by the averaged strain without mesh dependency and failure criterion for shear compression failure was proposed. It was confirmed that the proposed method was also applicable to RC beams, which has various dimension and specification, failed in both shear and flexural by the analyses. Moreover, it was shown that the proposed criterion was useful to evaluate the damage of a member in statically indeterminate structures.