Updating of FE models of an instrumented G+9 RC building using measured data from strong motion and ambient vibration survey

  • Singh, J.P. (Technical Specialist, Petrofac Intl. Ltd.) ;
  • Agarwal, Pankaj (Faculty of Engineering, Dept. of Earthquake Eng.) ;
  • Kumar, Ashok (Faculty of Engineering, Dept. of Earthquake Eng.) ;
  • Thakkar, S.K. (Faculty of Engineering, Dept. of Earthquake Eng.)
  • Received : 2011.02.21
  • Accepted : 2012.09.02
  • Published : 2013.03.25


A number of structural and modal parameters are derived from the strong motion records of an instrumented G + 9 storeyed RC building during Bhuj earthquake, 26 Jan. 2001 in India. Some of the extracted parameters are peak floor accelerations, storey drift and modal characteristics. Modal parameters of the building are also compared with the values obtained from ambient vibration survey of the instrumented building after the occurrence of earthquake. These parameters are further used for calibrating the accuracy of fixed-base Finite Element (FE) models considering structural and non-structural elements. Some conclusions are drawn based on theoretical and experimental results obtained from strong motion records and time history analysis of FE models. An important outcome of the study is that strong motion peak acceleration profile in two horizontal directions is close to FE model in which masonry infill walls are modeled.


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