?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Seismic+performance+of+structural+systems+equipped+with+buckling-restrained+braces&rft.creator=Tubaldi%2C+E&rft.creator=Freddi%2C+F&rft.creator=Zona%2C+A&rft.creator=Dall'Asta%2C+A&rft.description=Buckling-restrained+braces+(BRBs)+are+often+employed+for+the+seismic+retrofit+of+existing+systems+and+the+design+of%0D%0Anew+systems+given+their+significant+contribution+in+terms+of+stiffness+and+added+damping.+However%2C+since+BRBs+are%0D%0Acharacterized+by+a+low+lateral+post-elastic+stiffness%2C+their+use+may+lead+to+excessive+residual+deformations+that+may%0D%0Ajeopardize+the+reparability+of+the+building.+Moreover%2C+accumulation+of+plastic+deformations+in+the+BRBs+may%0D%0Aendanger+the+capability+of+withstanding+multiple+earthquakes+and+aftershocks.+The+objective+of+this+paper+is+to%0D%0Aprovide+insight+into+the+performance+and+residual+capacity+of+dual+systems+made+of+BRB+frames+coupled+with%0D%0Amoment-resisting+frames.+This+study+considers+a+simplified+single+degree+of+freedom+model+which+permits+to%0D%0Ainvestigate+a+wide+range+of+configurations.+A+non-dimensional+formulation+of+the+equation+of+motion+is+introduced%2C%0D%0Athe+statistic+of+the+normalized+peak+and+residual+displacements+and+cumulative+ductility+of+the+system+is+evaluated%0D%0Aunder+a+set+of+ground+motion+records.+Different+values+of+the+BRB+target+maximum+ductility+and+different+coupled%0D%0Aframe+properties+are+considered.+The+results+of+this+study+provide+useful+information+for+the+preliminary+design+of%0D%0Adual+systems+made+of+BRB+frames+coupled+with+moment-resisting+frames.&rft.subject=Buckling-restrained+braces%2C+dual+systems%2C+cumulative+ductility%2C+residual+displacement%2C+seismic%0D%0Aperformance.&rft.publisher=ANIDIS&rft.date=2017-09-21&rft.type=Proceedings+paper&rft.publisher=XVII+National+Conference+ANIDIS%2C+L'Ingegneria+sismica+in+Italia&rft.language=eng&rft.source=+++++In%3A++Proceedings+of+XVII+National+Conference+ANIDIS%2C+L'Ingegneria+sismica+in+Italia.++++ANIDIS%3A+Pistoia%2C+Italy.+(2017)++++(In+press).++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F1575846%2F1%2FFreddi_et%2520al.%25202017_ANIDIS_Seismic%2520performance%2520of%2520structural%2520systems%2520equipped%2520with%2520buckling-restrained%2520braces%2520-%2520Submitted.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F1575846%2F&rft.rights=open