%0 Journal Article %T Seismic evaluation of low and mid-rise steel moment-resisting frames equipped with viscous dampers based on FEMA P-695 collapse capacity %J Amirkabir Journal of Civil Engineering %I Amirkabir University of Technology %Z 2588-297X %A Abbaszadeh Shaha-naghi, Amir %A Ghodrati Amiri, Gholamreza %A Raissi Dehkordi, Morteza %A Eghbali, Mahdi %D 2021 %\ 08/23/2021 %V 53 %N 6 %P 2535-2560 %! Seismic evaluation of low and mid-rise steel moment-resisting frames equipped with viscous dampers based on FEMA P-695 collapse capacity %K Steel moment-resisting frames %K Viscous damper %K FEMA P-695 %K Collapse capacity %R 10.22060/ceej.2020.17438.6561 %X In this study, the seismic performance of steel special moment-resisting frames was analyzed under far-field records with and without viscous dampers using FEMA P-695. 4, 8, and 12-story frames were loaded, analyzed, and designed with and without viscous dampers based on ASCE 7-10 and AISC360. Furthermore, characteristics of viscous dampers are considered for the specific damping ratio of 15% (4,8-story), and 20% (12-story). The frames with and without dampers were modeled in OpenSees by lumped plasticity with Bilin Material. These frames were analyzed and calculated by Incremental Dynamic Analysis (IDA) under 44 far-field records with “Hunt & Fill” algorithm. The seismic performance of studied frames is presented as the collapse probability based on seismic fragility and collapse safety margin. The results demonstrate that the collapse capacity of 4, 8, and 12- story moment-resisting frames with viscous dampers have improved by 28%, 88%, and 74%, corresponding to the median collapse capacity. Moreover, the design of buildings with 75% of design base shear using viscous dampers has a significant effect on the optimal weight of building and construction costs and improvement of seismic performance and technical criteria. %U https://ceej.aut.ac.ir/article_4046_2628976c78c458608c362974eed55546.pdf