Development Of A Program For Dynamic Analysis Of Building Frames

Earthquake analysis is normally a two-stage process: we first estimate the dynamic properties ofrnthe structure (natural frequencies and mode shapes) by analyzing it in the absence of externalrnloads, and then use these properties in the determination of earthquake response. Earthquakesrnoften induce non-linear response in structures. However, most practical seismic design continuesrnto be based on linear analysis.rnThe objective of this research is to develop a software program for Earthquake analysis of planarrnframes according to the provisions given by Ethiopian Building Code Standard (EBCS-8, 1995)rnand compare the results from the developed program with other sources.rnThe most commonly used methods for dynamic analysis of structures subjected to earthquakernloads are modal and spectral analysis. Response spectral analysis given by the provision ofrnEBCS-8, 1995 is used for developing this computer program.rnIn this thesis, an overview of various dynamic analysis procedures is presented with a detailedrndescription for response-spectrum analysis, which is used to develop the computer program.rnConclusions are drawn concerning the reliability of the responses given by the developedrnprogram. Recommendations for the use of the program are also provided.

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