caa a22 4500 445847166 CHVBK 20180317145402.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10518-010-9241-3 doi (NATIONALLICENCE)springer-10.1007/s10518-010-9241-3 Simplified estimation of seismic risk for reinforced concrete buildings with consideration of corrosion over time [Elektronische Daten] [Daniel Celarec, Dimitrios Vamvatsikos, Matjaž Dolšek] Throughout the world, buildings are reaching the end of their design life and develop new pathologies that decrease their structural capacity. Usually the ageing process is neglected in seismic design or seismic risk assessment but may become important for older structures, especially, if they are intended to be in service even after they exceed their design life. Thus, a simplified methodology for seismic performance evaluation with consideration of performance degradation over time is presented, based on an extension of the SAC/FEMA probabilistic framework for estimating mean annual frequencies of limit state exceedance. This is applied to an example of an older three-storey asymmetric reinforced concrete building, in which corrosion has just started to propagate. The seismic performance of the structure is assessed at several successive times and the instantaneous and overall seismic risk is estimated for the near collapse limit state. The structural capacity in terms of the maximum base shear and the maximum roof displacement is shown to decrease over time. Consequently, the time-averaged mean annual frequency of violating the near-collapse limit state increases for the corroded building by about 10% in comparison to the typical case where corrosion is neglected. However, it can be magnified by almost 40% if the near-collapse limit state is related to a brittle shear failure, since corrosion significantly affects transverse reinforcement, raising important questions on the seismic safety of the existing building stock. Springer Science+Business Media B.V., 2011 Seismic risk nationallicence Capacity degradation nationallicence Corrosion nationallicence Reinforced concrete frame nationallicence Performance-based earthquake engineering nationallicence Static pushover nationallicence Celarec Daniel University of Ljubljana, Ljubljana, Slovenia aut Vamvatsikos Dimitrios University of Cyprus, Nicosia, Cyprus aut Dolšek Matjaž University of Ljubljana, Ljubljana, Slovenia aut Bulletin of Earthquake Engineering Springer Netherlands 9/4(2011-08-01), 1137-1155 1570-761X 9:4<1137 2011 9 10518 https://doi.org/10.1007/s10518-010-9241-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10518-010-9241-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Celarec Daniel University of Ljubljana, Ljubljana, Slovenia aut NATIONALLICENCE 700 1- Vamvatsikos Dimitrios University of Cyprus, Nicosia, Cyprus aut NATIONALLICENCE 700 1- Dolšek Matjaž University of Ljubljana, Ljubljana, Slovenia aut NATIONALLICENCE 773 0- Bulletin of Earthquake Engineering Springer Netherlands 9/4(2011-08-01), 1137-1155 1570-761X 9:4<1137 2011 9 10518 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer