• MANJUNATH P N
• Sameer Chitnis

Damage is defined as modifications to a systems physical property that have a negative impact on the structural performance now and in the future. This happens for either natural or artificial reasons. In the present work, the dynamic behavior of undamaged and damaged RC multi- story structures is studied with different damage locations in beams and columns at different levels (stories). The damage is introduced by reducing Young’s modulus of concrete by 35%, 45%, 55%. The critical damage level is identified by using modal analysis. And the damage severity in the columns and beams varied 35 % to 55% in different model. The modal analysis and lateral load analysis are carried out to understand the dynamic behavior of damaged structures. Earthquake load is considered a lateral load. The equivalent Static method is considered for analysis as per IS 1893 (Part -1): 2016 code provisions. The time periods of a structural system are dynamic parameters that vary when damage of a specific severity occurs at a particular location. This variation is due to alterations in the structural integrity caused by damage, affecting the system's response to external forces and potentially compromising its stability and safety. The introduction of damage at a specific location and of a certain severity within a structural system can lead to changes in the system's displacements. This alteration occurs as the damaged components may no longer provide the same resistance to deformation, resulting in shifts in the overall displacement patterns of the structure

Damage, Dynamic behavior, RC multi-story structure, Young’s modulus, Damage severity, Modal analysis, Lateral load analysis, Seismic parameters and time period

"“STUDY ON THE EFFECT OF DAMAGE LOCATION AND SEVERITY ON DYNAMIC BEHAVIOUR OF MULTI-STOREY RC FRAME STRUCTURE”", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 9, page no.c760-c765, September-2023, Available :http://www.jetir.org/papers/JETIR2309287.pdf

"“STUDY ON THE EFFECT OF DAMAGE LOCATION AND SEVERITY ON DYNAMIC BEHAVIOUR OF MULTI-STOREY RC FRAME STRUCTURE”", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 9, page no. ppc760-c765, September-2023, Available at : http://www.jetir.org/papers/JETIR2309287.pdf