TY - JOUR ID - 72087 TI - Influence of Sudden Column Loss on Dynamic Response of Steel Moment Frames under Blast Loading JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Kiakojouri, Foad AD - Structural Engineering, Urmia University Y1 - 2013 PY - 2013 VL - 26 IS - 2 SP - 197 EP - 206 KW - Blast KW - Progressive collapse KW - Steel moment frame KW - Column loss KW - Dynamic nonlinear analysis DO - N2 - Modeling buildings response to blast and subsequent progressive collapse interested more and more researchers during the past two decades. Due to the threat from extreme loading, efforts have been made to develop methods of structural analysis and design. In this paper, progressive collapse capacity of steel moment frames was first investigated using alternate load path method, then a nonlinear dynamic analysis was carried out to examine dynamic response of the steel frames in blast and sudden column loss scenario. The structural response of the building under sudden loss of column for different scenarios of column removal, with or without external blast loading was assessed in detail. According to results progressive collapse potential are strongly dependent on location of column loss. Loss of column can affect overall response of structure under external blast loading. The obtained results provide better insight into the influence of sudden column loss on dynamic response of steel moment frames under blast loading.   UR - https://www.ije.ir/article_72087.html L1 - https://www.ije.ir/article_72087_84324f662903bda2354b81004785d5c9.pdf ER -