Simulation of blast-induced failure of case study structure

This paper presents a study of the failure of column of Alfred Murrah Building due to an external explosion and assesses the partial progressive collapse of the front face of the building. The paper also looks at the general theory and behaviour of blast waves. A truck bomb of estimated 1800 kg TNT...

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Main Author:	Abdul Gafoor, Mohamed Saakhee
Format:	Thesis
Published:	2013
Subjects:	TA Engineering (General) Civil engineering (General)
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id	my-utm-ep.42205
record_format	uketd_dc
spelling	my-utm-ep.422052020-08-17T02:51:22Z Simulation of blast-induced failure of case study structure 2013 Abdul Gafoor, Mohamed Saakhee TA Engineering (General). Civil engineering (General) This paper presents a study of the failure of column of Alfred Murrah Building due to an external explosion and assesses the partial progressive collapse of the front face of the building. The paper also looks at the general theory and behaviour of blast waves. A truck bomb of estimated 1800 kg TNT equivalent was exploded at the center, 4 m away from the column at G20. The failure of the column is simulated using finite element software Abaqus with the pressure load which is the equivalent blast load. It was found that the column failed due to tension. The study also shows the initiation and propagation of tension cracks using finite element. In addition, it shows the initiation and propagation of the tension cracks until the failure of the column. The progressive collapse is assessed by performing linear elastic static analysis without removing the structural column and after removing failed column G20. The results were used as per General Service Administration guidelines to check the failure of the other column and beams. The results show that the failure of G20 causes shear failure of columns at G16 and G24. This triggers the failure of the transfer girder at third floor of the structure which causes the progressive collapse of the front face of the building. The study compares the results obtained from simulations to the actual failure with the help of forensic pictures available. 2013 Thesis http://eprints.utm.my/id/eprint/42205/ http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:79568 masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Abdul Gafoor, Mohamed Saakhee Simulation of blast-induced failure of case study structure
description	This paper presents a study of the failure of column of Alfred Murrah Building due to an external explosion and assesses the partial progressive collapse of the front face of the building. The paper also looks at the general theory and behaviour of blast waves. A truck bomb of estimated 1800 kg TNT equivalent was exploded at the center, 4 m away from the column at G20. The failure of the column is simulated using finite element software Abaqus with the pressure load which is the equivalent blast load. It was found that the column failed due to tension. The study also shows the initiation and propagation of tension cracks using finite element. In addition, it shows the initiation and propagation of the tension cracks until the failure of the column. The progressive collapse is assessed by performing linear elastic static analysis without removing the structural column and after removing failed column G20. The results were used as per General Service Administration guidelines to check the failure of the other column and beams. The results show that the failure of G20 causes shear failure of columns at G16 and G24. This triggers the failure of the transfer girder at third floor of the structure which causes the progressive collapse of the front face of the building. The study compares the results obtained from simulations to the actual failure with the help of forensic pictures available.
format	Thesis
qualification_level	Master's degree
author	Abdul Gafoor, Mohamed Saakhee
author_facet	Abdul Gafoor, Mohamed Saakhee
author_sort	Abdul Gafoor, Mohamed Saakhee
title	Simulation of blast-induced failure of case study structure
title_short	Simulation of blast-induced failure of case study structure
title_full	Simulation of blast-induced failure of case study structure
title_fullStr	Simulation of blast-induced failure of case study structure
title_full_unstemmed	Simulation of blast-induced failure of case study structure
title_sort	simulation of blast-induced failure of case study structure
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2013
_version_	1747816715368005632

Simulation of blast-induced failure of case study structure

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