Abstract
The aim of the present study is to assess the performance of a reinforced concrete (RC) building been retrofitted with a new precast insulated steel and concrete composite sandwich wall. The applied retrofitting method, as well as the selection of the performance level for design have been studied with reference to their impact on the retrofit cost and the estimated cost due to possible earthquake losses. As a case study an existing 8-story RC building has been selected that is strengthened with inverted-V steel bracings as well as with the application of the proposed insulated composite walls, respectively. By applying inelastic dynamic analyses with artificial accelerograms scaled to represent earthquake scenarios with specific probabilities of recurrence, the seismic response of the strengthened structure is defined for each scenario. The results of the aforementioned analyses are being correlated with the earthquake losses based on an established methodology. Eventually, the performance of each retrofit method is determined and then compared with the respective performance of the existing building. The most efficient method is defined by considering both the construction cost and the earthquake losses cost of each earthquake scenario.
Original language | English |
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Journal | IOP Conference Series: Earth and Environmental Science |
Volume | 1196 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jun 2023 |
Event | SBE23-Thessaloniki: Sustainable built environments: Paving the way for achieving the targets of 2030 and beyond - Online Duration: 22 Mar 2023 → 24 Mar 2023 |