1
Graduate Student, Department of Civil, South Tehran Branch, Islamic Azad University, Tehran, Iran
2
Assistant Professor, Department of Civil, South Tehran Branch, Islamic Azad University, Tehran, Iran
Abstract
The aim objective of this study is to investigate the effects of near-field earthquakes on the response of mid-rise buildings with tubular structure. For this purpose, a 20-story building with a square plan of six by six bays, all with 6 m span, and story height of 3.70 m is considered. Axial force of columns, shear lag, and inter-story drift values are used as the main response parameters. Nonlinear time history analyses (NLTHA) of the considered building were conducted by using once the two-component, and once more three-component accelerograms of both far- and near-field selected earthquakes for comparison. Numerical results of NLTHA show that inclusion of a vertical component of ground motion leads to around 17% and 32% increase, in average, in axial forces of side and corner columns respectively in case of far-field earthquakes. These increases were respectively 22% and 37% in case of near-field earthquakes. The vertical ground motion also leads to around 11% and 15% increase, in average, in shear lag of side and corner columns respectively in case of far-field earthquakes, and 13% and 19% increase in case of near-field earthquakes. The amount of increase in inter-story drift values due to the vertical ground motion was observed in range of 24% and 27% for far- and near-field earthquakes respectively.
Mazlooma, H., Firoozi Nezamabadi, M. (2017). Performance of Mid-rise Buildings with Tubular Structure Under the Effect of Near Field Earthquakes. Journal of Structural Engineering and Geo-Techniques, 7(1), 1-13.
MLA
Hooman Mazlooma; Maryam Firoozi Nezamabadi. "Performance of Mid-rise Buildings with Tubular Structure Under the Effect of Near Field Earthquakes". Journal of Structural Engineering and Geo-Techniques, 7, 1, 2017, 1-13.
HARVARD
Mazlooma, H., Firoozi Nezamabadi, M. (2017). 'Performance of Mid-rise Buildings with Tubular Structure Under the Effect of Near Field Earthquakes', Journal of Structural Engineering and Geo-Techniques, 7(1), pp. 1-13.
VANCOUVER
Mazlooma, H., Firoozi Nezamabadi, M. Performance of Mid-rise Buildings with Tubular Structure Under the Effect of Near Field Earthquakes. Journal of Structural Engineering and Geo-Techniques, 2017; 7(1): 1-13.
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