EFFECTS OF VARIOUS STRUCTURAL DOMAIN OVER FUNDAMENTAL TIME PERIOD OF RC STRUCTURES
Abstract
When a structure is subjected to an earthquake, the seismic forces propel the structure into motion and vibrate the structure in different directions. The time that the structure takes for a single oscillation is called the time period. The longest of these is called the natural time period. The natural time lag and damping of the structure has phenomenal effects on the response of structures. According to IS 1893 (2002), the approximate natural time span (T) in seconds is affected by two parameters: the height of the structure and secondly the base dimension of the building. In this study, parameters are examined that, in addition to height and base dimensions, can extend the natural time span of RC structures. The lengthening of the natural time periods leads to an improved response of the RC structure. The time course analysis of various R.C. Imperial Valley (1940) ground motion models were performed using CSI Etabs 2016 and SAP 2000.
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References
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