Direct displacement loss assessment of existing RC buildings pre- and post-seismic retrofitting: A case study |
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Affiliation: | 1. Human and Animal Physiology, Wageningen University, De Elst 1, 6708 WD Wageningen, The Netherlands;2. Department of Adipose Tissue Biology, Institute of Physiology Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague, Czech Republic;3. RIKILT, Wageningen UR, Akkermaalsbos 2, 6708 WB Wageningen, The Netherlands |
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Abstract: | The seismic retrofitting of a high-rise RC building, recently realized in Italy using the seismic isolation technique, is examined in terms of cost of the intervention (compared to the replacement cost of the building), seismic performances and expected benefits (compared to the building in the as-built configuration), expressed in terms of reduction of direct and indirect seismic losses in case of attainment of different limit states.In the paper, the comparison of the building performance before and after seismic retrofitting is performed in terms of Expected Annual Loss (EAL), applying a direct displacement-based loss assessment approach. The results show a considerable reduction of the EAL (approximately of 70%), passing from the as-built to the retrofitted configuration. The time needed to get the balance between costs of the intervention and benefits due to EAL reduction turns out to be of the order of 13 years. |
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Keywords: | Seismic retrofitting Seismic isolation Direct displacement-based loss assessment Direct and indirect losses Expected annual loss Break-even time |
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