Open AccessResponse Control of Structures with Friction Dampers under Blast Loading
Author(s) -
Kupphalli Krishne Gowda Kiran,
Ehsan Noroozinejad Farsangi
Publication year - 2021
Publication title -
the open civil engineering journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 16
ISSN - 1874-1495
DOI - 10.2174/1874149502115010244
Subject(s) - damper , structural engineering , impulse (physics) , slip (aerodynamics) , engineering , displacement (psychology) , vibration , psychology , physics , quantum mechanics , psychotherapist , aerospace engineering
This study investigates the performance of the surface blast load acting on Moment Resistance Frames (MRF)with a novel slip load friction damper. Recently the world is facing terrorist activities that lead to the damage of the structures, including commercial, industrial, and public buildings. Methods: These structures should be protected by using control devices. Friction damper is a passive damping device that absorbs maximum energy released during vibrations. Blast loads are calculated based on empirical equations.In this study, single slip and double slip load friction dampers considering the hysteresis loops are used for controlling the response of the MRFs exposed to blast loadings. Results: The four storey, eight storey, and twenty storey MRFs with surface blast responses are controlled by using single and double slip load friction dampers. The response includes displacement, accelerations, velocity, storey drift, storey drift ratio, pressure impulse curve, etc. The torsional effect with two dimensions is considered for the high-rise structure as well. Conclusion: It was concluded that using friction dampers plays a vital role in controlling the response of MRFsunder blast loadings.