Experimental Based Structural Assessment of RC Frames

The scope of this paper covers modal analysis of structures as a vital process of structural identification. The vital dynamic parameters of a structure such as the natural frequency or modal frequency of the structure, mode shapes or the deflection shape of the structure, damping ratios and the significant effect of resonance which occurs as a result of coincidence of natural frequency of the structure with that of dynamic load the structure is subjected to are often neglected in the design of these structures .Structural Identification (St-Id) can be defined as the process of creating/updating a model of a structure based on experimental observations. It involves the determination of dynamic parameters through theoretical calculations derived from first principles, experimental procedure followed by mathematical modelling user friendly software. It lists out the significance of modal analysis and its role in structural identification of especially structures subjected to dynamic loading.