Effect of Earthquakes on Reinforced Concrete Buildings

Date
2014-01-15
Authors
Ibrahimkhail, Abdul
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Civil Engineering
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University of Hawaii at Manoa
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This paper consists of three major parts: The first part deals with general knowledge of earthquake motions. It provides basic infor­ mation regarding the magnitude and intensity of an earthquake. The second part of the paper describes elastic analysis of reinforced concrete buildings subject earthquake motions. A mathematical model has been developed in this section to analyze multi-story structures. The last part of this paper is concerned with elastic analysis of a ten-story reinforced concrete building subject to the north-south component of El-Centro earthquake. Time-History response of the structure for story-shear and deflection at various heights have been computed. Also, a spectrum analysis together with an analysis by Uniform Building Code of the ten-story building has been carried for comparison. Deflections at story-levels computed by the spectrum analysis agree closely with those obtained from the Time-History response. However, these values are three to six times larger than those given by the UBC analysis. A sufficient (i.e. 6) ductility factory can be provided to make up for the difference.
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50 pages
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