The efficiency of using a seismic base isolation system for a 2D concrete frame founded upon improved soft soil with rigid inclusions |
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| Authors: | Talal Awwad Modar Donia |
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| Institution: | 1.Department of Earthquake Geotechnical Engineering,Higher Institute for Earthquake Researches and Studies (HIERS) Damascus University,Damascus,Syria;2.Ministry of water resources,Damascus,Syria |
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| Abstract: | 2D finite element models were developed to analyze the effect of improved soft-soil foundation on the efficiency of a base-isolated concrete frame. Static and dynamic analyses were performed for a frame on raft foundation. Non-improved and improved soft-soil foundation using rigid inclusions were considered, as well as the use of high damping rubber bearing as base isolation. Results show that the use of rigid inclusions increases the efficiency of base isolation; base shear is reduced by 38% and maximum acceleration at the top of the frame by 30%. |
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