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contributor authorMohamed Ahmed Galal
contributor authorMilan Bandyopadhyay
contributor authorAtul Krishna Banik
date accessioned2022-01-30T19:19:06Z
date available2022-01-30T19:19:06Z
date issued2020
identifier other%28ASCE%29CF.1943-5509.0001419.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4265058
description abstractThis paper investigated the behavior of three-dimensional (3D) steel-concrete building under external explosion considering the slab and connection rigidity. Most of the work carried out so far in the progressive collapse area followed the threat-independent alternate load path (ALP) methodology as a design guide. This study presents a simplified two-stage nonlinear dynamic analysis using Abaqus FE. The number of columns likely to be removed in progressive collapse due to blast is determined using a three-step restart analysis in the first stage. Collapse analysis of the entire building is carried out in the second stage, and the results were compared with nonlinear dynamic analysis of the ALP. The numerical model was validated with the data obtained from experimental works and the results showed good agreement. It was concluded that the ALP usually is not conservative; more columns may be eliminated under heavy explosion, and collapse analysis is required to capture the real behavior. The well-known failure criteria for yielding, fracture, and stability are not efficient enough, and the damage index criterion which basically depends on the global column behavior and its remaining axial capacity should be used.
publisherASCE
titleProgressive Collapse Analysis of Three-Dimensional Steel–Concrete Composite Building due to Extreme Blast Load
typeJournal Paper
journal volume34
journal issue3
journal titleJournal of Performance of Constructed Facilities
identifier doi10.1061/(ASCE)CF.1943-5509.0001419
page04020021
treeJournal of Performance of Constructed Facilities:;2020:;Volume ( 034 ):;issue: 003
contenttypeFulltext


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