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Quantifying the response of steel columns to multi-axis long-duration blast and thermal loading

Quantifying the response of steel columns to multi-axis long-duration blast and thermal loading
Quantifying the response of steel columns to multi-axis long-duration blast and thermal loading
Columns are an integral part of a steel framed structure, responsible for carrying load to the foundations. If the integrity of a column is compromised due to damage, such as from blast, incipient partial or total collapse of a structure can occur. The response of a column to blast can increase for a number of reasons e.g. the blast is long-duration in nature, where long-duration is defined as the positive duration in excess of 100ms, the blast arrives at an oblique angle of incidence or the column is also subject to a thermal load. While the effects of each have been considered separately, there is no research on the response to a combination. This paper reports on the effect of multi-axis long-duration thermal and blast loading on the response of a steel column. Numerical modelling was used to determine the blast load and the structural response of the column. The results show that column response to multi-axis and thermal loading individually increases due to a combination of projected area, weak axis and shielding effects and thermal softening respectively. Additionally, the response is increased further when multi-axis and thermal loading are considered together.
1743-3509
83-90
WIT Press
McFadzean, Laura
547400f7-1e7d-42b2-9c8a-35041a6a768e
Clubley, Simon
d3217801-61eb-480d-a6a7-5873b5f6f0fd
Syngellakis, S.
Schleyer, G.
McFadzean, Laura
547400f7-1e7d-42b2-9c8a-35041a6a768e
Clubley, Simon
d3217801-61eb-480d-a6a7-5873b5f6f0fd
Syngellakis, S.
Schleyer, G.

McFadzean, Laura and Clubley, Simon (2018) Quantifying the response of steel columns to multi-axis long-duration blast and thermal loading. Syngellakis, S. and Schleyer, G. (eds.) In Structures Under Shock and Impact XV. vol. 180, WIT Press. pp. 83-90 . (doi:10.2495/SUSI180081).

Record type: Conference or Workshop Item (Paper)

Abstract

Columns are an integral part of a steel framed structure, responsible for carrying load to the foundations. If the integrity of a column is compromised due to damage, such as from blast, incipient partial or total collapse of a structure can occur. The response of a column to blast can increase for a number of reasons e.g. the blast is long-duration in nature, where long-duration is defined as the positive duration in excess of 100ms, the blast arrives at an oblique angle of incidence or the column is also subject to a thermal load. While the effects of each have been considered separately, there is no research on the response to a combination. This paper reports on the effect of multi-axis long-duration thermal and blast loading on the response of a steel column. Numerical modelling was used to determine the blast load and the structural response of the column. The results show that column response to multi-axis and thermal loading individually increases due to a combination of projected area, weak axis and shielding effects and thermal softening respectively. Additionally, the response is increased further when multi-axis and thermal loading are considered together.

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Published date: 2018

Identifiers

Local EPrints ID: 425724
URI: http://eprints.soton.ac.uk/id/eprint/425724
ISSN: 1743-3509
PURE UUID: 7b8df717-02f7-401a-8d9e-07f77aee591f
ORCID for Laura McFadzean: ORCID iD orcid.org/0000-0002-6421-7298
ORCID for Simon Clubley: ORCID iD orcid.org/0000-0003-3779-242X

Catalogue record

Date deposited: 02 Nov 2018 17:30
Last modified: 07 Oct 2020 05:18

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