Investigating the behavior of steel structures with honeycomb damper against blast and earthquake loads


Navid Farrokhnia,Seyed Mojtaba Movahedifar,



Blast,honeycomb damper,Abaqus,moment frame,


Earthquake is one of the most important natural phenomena and humans have always been trying to control its adverse effects. In the past century, the development of cities and the high investment in them and many financial and life losses caused by earthquake and, on the other hand, the ever-increasing advances in science and technology that allow for more accurate knowledge of the factors causing the earthquake and how to control it have made humans reduce its financial and life losses by making suitable and earthquake resistant structures. Today, due to the increasing growth of terrorist activities, the risk of structures facing blast loads has also increased. The occurrence of various terrorist incidents in relation to important structures around the world has caused that in recent years, blast loads become the focus of special attention. This article examines the connection of steel structures with honeycomb damper by applying blast and earthquake loads in Abaqus finite element software. Three frame models with 6, 9 and 13 floors have been considered for the study. For air blast, 10 Kg of TNT have been used. To apply earthquake records, seven pairs of accelerograms have been employed. By examining the results of numerical modeling in Abaqus finite element software, it can be observed that as a result of applying blast load, the damper could not react. But due to applying earthquake records, the damper’s behavior was very good so that at the beamcolumn joint, the highest amount of stress was created in the damper. Considering that applying the blast loading occurs in less than a few milliseconds and the structure does not have enough time to react to this load, blast load failure has been local and sectional.


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