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Article Information:
Shock Response Analysis of Soil-structure Systems under Seismic Environment
Hamid Masaeli, Amir B. Hami, Saman Musician and Faramarz Khoshnoudian
Corresponding Author: Hamid Masaeli
Submitted: February 18, 2014
Accepted: March 08, 2014
Published: May 20, 2014 |
Abstract:
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Shock response analysis of the soil-structure systems induced by near-fault pulses is investigated. Vibration transmissibility of the soil-structure systems is evaluated by Shock Response Spectra (SRS). Medium-to-high rise buildings with different aspect ratios located on different soil types as well as different foundations with respect to vertical load bearing safety factors are studied. Two types of mathematical near-fault pulses, i.e., forward directivity and fling step, with different pulse periods as well as pulse amplitudes are selected as incident ground shock. Linear versus nonlinear Soil-Structure Interaction (SSI) condition are considered alternatively and the corresponding results are compared. The results show that nonlinear SSI is likely to amplify the acceleration responses when subjected to long-period incident pulses with normalized period exceeding a threshold. It is also shown that this threshold correlates with soil type, so that increased shear-wave velocity of the underlying soil makes the threshold period decrease.
Key words: Ground shock, rocking isolation, soil-structure interaction, shock response spectrum, , ,
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Cite this Reference:
Hamid Masaeli, Amir B. Hami, Saman Musician and Faramarz Khoshnoudian, . Shock Response Analysis of Soil-structure Systems under Seismic Environment. Research Journal of Environmental and Earth Sciences, (5): 292-298.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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