?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Influence+of+atmospheric+corrosivity+on+the+seismic+fragility+of+low-code+steel+frame+structures&rft.creator=Lad%2C+Devang&rft.creator=Freddi%2C+Fabio&rft.creator=Ghosh%2C+Jayadipta&rft.description=Low-code+steel+moment-resisting+frames+(pre-Northridge)+are+characterised+by+high+seismic+vulnerability+due+to+their+reduced+ductility+capacity.%0D%0AMoreover%2C+these+structures+are+exposed+to+atmospheric+corrosion+deterioration%0D%0Adue+to+environmental+corrosive+agents.+Corrosion+deterioration+leads+to+section%0D%0Amass+loss%2C+stiffness+degradation%2C+and+loss+of+energy+dissipation+capacity%2C+among%0D%0Aothers.+Thus%2C+based+on+the+corrosive+category%2C+old+steel+structures+could+experience+considerable+variations+in+their+seismic+performance.+The+present+study+examines+the+effect+of+different+corrosivity+categories+on+the+seismic+vulnerability%0D%0Aof+steel+frames.+A+non-seismically+designed+three-storey+moment-resisting+frame%0D%0Ais+selected+for+case-study+purposes+and+exposed+to+increasing+corrosivity+categories+(C3%2C+C4%2C+C5%2C+and+CX)+as+per+ISO+9223%3A+2012.+As+per+ISO+9224%3A2012%2C+atmospheric+corrosion+is+assessed+considering+a+50-year+ageing+time+and+uniform+corrosion.+The+seismic+performance+of+the+pristine+and+ageing+steel+frames+is+evaluated+through+Incremental+Dynamic+Analyses+(IDAs)+considering+a+suite+of+43%0D%0Aground+motion+records+to+account+for+the+record-to-record+variability.+The+seismic+performance+under+different+exposure+categories+is+evaluated+by+monitoring%0D%0Alocal+and+global+engineering+demand+parameters+(EDPs)%2C+allowing+the+development+of+seismic+fragility+functions+at+components-+and+system-levels.&rft.subject=Existing+steel+frame%2C+Atmospheric+corrosion%2C+Corrosivity+Categories%2C+Local+engineering+demand+parameters%2C+Fragility+curves&rft.publisher=International+Society+for+Structural+Health+Monitoring+of+Intelligent+Infrastructure+(ISHMII)&rft.date=2024-06-24&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A++Proceedings+of+the+3rd+International+Conference+on+Resilience%2C+Earthquake+Engineering+and+Structural+Health+Monitoring+(ICONREM+2024).++++International+Society+for+Structural+Health+Monitoring+of+Intelligent+Infrastructure+(ISHMII)%3A+Turin%2C+Italy.+(2024)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10195607%2F1%2FLad_et_al_ICONREM2024_Final.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10195607%2F&rft.rights=open