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    Progressive Collapse Analysis of Three-Dimensional Steel–Concrete Composite Building due to Extreme Blast Load

    Source: Journal of Performance of Constructed Facilities:;2020:;Volume ( 034 ):;issue: 003
    Author:
    Mohamed Ahmed Galal
    ,
    Milan Bandyopadhyay
    ,
    Atul Krishna Banik
    DOI: 10.1061/(ASCE)CF.1943-5509.0001419
    Publisher: ASCE
    Abstract: This 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.
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      Progressive Collapse Analysis of Three-Dimensional Steel–Concrete Composite Building due to Extreme Blast Load

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4265058
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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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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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