Nonlinear analysis on progressive collapse of tall steel composite buildings. (June 2018)

• Record Type: Journal Article
• Authors: Rahnavard, Rohola; Fard, Faramarz Fathi Zadeh; Hosseini, Ali; Suleiman, Mohamed
• Is Part Of: Case studies in construction materials. Volume 8(2018)
• Page Start: 359
• Page End: 379
• Publication Date: 2018-06
• Subjects: Progressive collapse -- Column removal -- Moment frame -- Irregular plan; Building materials -- Case studies -- Periodicals; 691.05
• DOI: 10.1016/j.cscm.2018.03.001
• Languages: English
• ISSNs: 2214-5095

Abstract

Highlights: Four FE models of 3-D multi story steel composite buildings using the commercial finite element program ABAQUS were created. The models were analyses with two types column removal cases include corner and side case removal applied to the models. By comparison all regular models with the irregulars it observed that moment differential of adjusting column in regulars models damped sooner than irregular models. Abstract: Progressive collapse is defined as the expansion of an initial local failure of an element into another element of the structure and ultimately leading to the collapse of the whole structure or a large part of it in a disproportionate way. Three dimensional modeling, using the finite element method was developed and investigated to understand the progressive collapse of high rise buildings with composite steel frames. The nonlinear dynamic analysis examined the behavior of the building under two column removal scenarios. Two different types of lateral resistance systems were selected to be analysis and compared. The buildings included regular and irregular plans. The response of the building was studied in detail, and measures are recommended to reduce progressive collapse in future designs. The results of this study shows that side case removal in moment frame and moment with centrically braced frame systems was more critical and destructive compared with corner case removal. Comparing the models, for the two different lateral resistance systems, the dynamic response of columns were different, but were not remarkable.