Research Article Open Access

DAMAGE ASSESSMENT OF RC BEAM IN TERMS OF ITS STIFFNESS AND MODAL CHARACTERISTICS

Abstract

A crack in a structure introduces a local flexibility which can change the dynamic behavior of the structure, and from this change the crack location and size can be determined. Damage identification in reinforced concrete flexural member using the change in natural frequency and in turn change in flexural stiffness has been the subject of forensic structural engineering. This paper presents experimental results on damage severity of beams in terms of their dynamic parameters. The flexure and modal performance of plain reinforced concrete beam and SFRC beam was compared. As a part of the research, beams were subjected to flexure and modal tests in order to assess and compare their damage state. The results obtained showed changes in stiffness and natural frequencies. The trend in the measured stiffness and frequencies showed more deterioration in Plain RC beam as compared to SFRC beam.

MOHAMMAD FAIZAN AND KRITHIKA P

To read the full article Download Full Article