ABSTRACT
Current paper focuses on structural response of typical semi-rigid steel beam-to-column joints. In particular, bolted cleat angle connections are investigated under both monotonic and cyclic loading conditions. The study is based upon available test results coming from two important experimental campaigns. Such results are duly compared, aiming at assessing the possibility to use analytical procedures matching the cyclic moment-rotation characteristics of angle connections. In particular, a purposely developed analytical model is applied to describe the whole response of the specimen under cyclic constant deformation conditions. The main energetic parameters affecting such a response are also investigated. Finally, test results have been re-analyzed in order to identify the fatigue life endurance of investigated connections. Therefore, fatigue-life relationships for the assessment S-N lines are applied and the structural performance of tested connection in terms of low-cycle fatigue is evaluated.
