Byfield M.,University of Southampton |
Mudalige W.,University of Southampton |
Morison C.,TPS Consult |
Stoddart E.,University of Southampton
Proceedings of the Institution of Civil Engineers: Structures and Buildings | Year: 2014
History has demonstrated that buildings designed to conventional design codes can lack the robustness necessary to withstand localised damage, partial or even complete collapse. This variable performance has led governmental organisations to seek ways of ensuring all buildings of significant size possess a minimum level of robustness. The research community has responded by advancing understanding of how structures behave when subjected to localised damage. Regulations and design recommendations have been developed to help ensure more consistent resilience in all framed buildings of significant size, and rigorous design approaches have been specified for buildings deemed potentially vulnerable to extreme loading events. This paper summarises some of the more important progressive collapse events, to identify key attributes that lead to vulnerability to collapse. Current procedures and guidelines for ensuring a minimum level of performance are reviewed and modelling methods for structures subjected to localised damage are described. These include increasingly sophisticated progressive collapse analysis procedures, including linear static and non-linear static analysis, as well as non-linear static pushover and linear dynamic methods. Finally, fully non-linear dynamic methods are considered. Building connections potentially represent the most vulnerable structural elements in steel-framed buildings; their failure can lead to progressive collapses. Steel connections also present difficulties with respect to frame modelling and this paper highlights benefits and drawbacks of some modelling procedures with respect to their treatment of connections. © 2014, Thomas Telford Services Ltd. All rights reserved.
Morison C.M.,TPS Consult
COST ACTION C26: Urban Habitat Constructions under Catastrophic Events - Proceedings of the Final Conference | Year: 2010
Modern analysis of glazed facades has grown from a combination of blast loading assessment by theoretical, experimental and numerical methods, from the development of dynamic structural analysis methods to embrace the non-linear nature of glazing and from the experimental evaluation of glazing systems, models and materials. This paper reviews this growth, discusses some of the factors in modern glazing analysis tools that affect the suitability of tools for research and design, and looks at areas of current development that may extend the capability of blast resistant glazing systems © 2010 Taylor & Francis Group, London.
Wholey W.,TPS Consult |
Whyte M.,TPS Consult
Proceedings of the Institution of Civil Engineers: Urban Design and Planning | Year: 2014
This article identifies and discusses some of the challenges to the meaningful incorporation of resilience in commercial engineering projects. In particular it discusses: the tendency for projects to have many disparate consultants with no collective motivation for a coordinated approach to resilience; the current perceived lack of value for the client by addressing resilience; and the absence of either incentive or legislation to provide motivation to address resilience. The article then proposes what is needed to overcome these challenges: a coordinated, multidisciplinary approach to managing the whole spectrum of a client’s risk. By combining expertise and consolidating mitigation strategies, it is possible to meet the client’s needs while maintaining value. It is up to multidisciplinary companies with these capabilities to begin promoting the value of resilient design. © ICE Publishing: All rights reserved