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Numerical modelling of reinforced concrete columns subject to coupled uplift and shear forces induced by internal explosions

Numerical modelling of reinforced concrete columns subject to coupled uplift and shear forces induced by internal explosions
Numerical modelling of reinforced concrete columns subject to coupled uplift and shear forces induced by internal explosions
This paper investigates the effect of time variant coupled uplift forces and lateral blast pressures on the vulnerability of reinforced concrete columns when subjected to internal explosions. Detailed examination of archive events have demonstrated that confined blast can induce significant uplift forces on concrete columns carrying predominantly compression loads. These uplift forces substantially deteriorate the strength of concrete columns leading to destabilization and a critical loss of structural adequacy. This research employs the Applied Element Method together with high resolution CFD simulations to model column response under complex vented and contained internal blast environments. Results from a comprehensive number of parametric studies highlighted the important effect of uplift forces and blast wave confinement with regard to the column’s overall vulnerability to internal explosions. This research will be of direct importance to both practitioners and researchers involved with protective design of buildings.
1573-2479
Wijesundara Mudalige, G.
379b35ee-f37f-4b69-81ee-033adfdf4357
Clubley, S.K.
d3217801-61eb-480d-a6a7-5873b5f6f0fd
Wijesundara Mudalige, G.
379b35ee-f37f-4b69-81ee-033adfdf4357
Clubley, S.K.
d3217801-61eb-480d-a6a7-5873b5f6f0fd

Wijesundara Mudalige, G. and Clubley, S.K. (2015) Numerical modelling of reinforced concrete columns subject to coupled uplift and shear forces induced by internal explosions. Structure and Infrastructure Engineering. (doi:10.1080/15732479.2014.1002502).

Record type: Article

Abstract

This paper investigates the effect of time variant coupled uplift forces and lateral blast pressures on the vulnerability of reinforced concrete columns when subjected to internal explosions. Detailed examination of archive events have demonstrated that confined blast can induce significant uplift forces on concrete columns carrying predominantly compression loads. These uplift forces substantially deteriorate the strength of concrete columns leading to destabilization and a critical loss of structural adequacy. This research employs the Applied Element Method together with high resolution CFD simulations to model column response under complex vented and contained internal blast environments. Results from a comprehensive number of parametric studies highlighted the important effect of uplift forces and blast wave confinement with regard to the column’s overall vulnerability to internal explosions. This research will be of direct importance to both practitioners and researchers involved with protective design of buildings.

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Manuscript_R2_Wijesundara_M_G_L_and_S_K_Clubley.docx - Accepted Manuscript
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More information

Accepted/In Press date: 4 November 2014
Published date: 19 January 2015
Organisations: Infrastructure Group

Identifiers

Local EPrints ID: 364186
URI: https://eprints.soton.ac.uk/id/eprint/364186
ISSN: 1573-2479
PURE UUID: 428c32a7-b2da-4729-81a8-05ccdbf51cb3
ORCID for S.K. Clubley: ORCID iD orcid.org/0000-0003-3779-242X

Catalogue record

Date deposited: 08 Apr 2014 11:34
Last modified: 06 Jun 2018 12:30

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