Frictional mid‐spliced shear links for eccentrically braced frames

Abstract According to the AISC Seismic Provisions for Structural Steel Buildings (AISC341‐16) and EC8, inelastic rotation demand at design story drift is limited 0.08 rad I‐shape shear links in eccentrically braced frames (EBFs). Numerical studies on EBF archetypes show that single‐sided demands can be much higher than limiting value. In addition, these fail due low‐cycle fatigue (LCF) which depends loading history. A mid‐spliced end‐plated detachable replaceable link has recently been developed promote easy replacement of links. this paper, a frictional increase capacity LCF life The proposed utilizes splice connection mid‐length, where faying surfaces are introduced dissipate energy. Slip mid‐splice causes relative vertical displacement between ends eventually reduces members. Experimental numerical were conducted study concept. Three conventional eight tested using nearly full‐scale test setup. results showed have pinched versus response. able sustain 0.23 together with significant their life. investigate rotation, interstory drift, residual equipped link.