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dc.contributor.advisorUsmani, Asif
dc.contributor.advisorRotter, J Michaelen
dc.contributor.authorGillie, Martin
dc.date.accessioned2006-11-29T10:50:27Z
dc.date.available2006-11-29T10:50:27Z
dc.date.issued2000-09
dc.identifier.urihttp://hdl.handle.net/1842/1466
dc.description.abstractOver the last decade it has become increasingly clear that the traditional methods of fire safety design can be unnecessarily conservative and therefore expensive. In 1995 a series of fire tests were carried out at Cardington, UK on a full-scale eight storey steel-concrete composite building. These tests produced an extensive body of data about the response of such structures to fire conditions and it is intended that this data be used to develop a clearer understanding of the structural behaviour involved. This thesis presents a method of analysing the behaviour of structures such as the Cardington frame using the commercial finite element package ABAQUS, with the addition of user defined subroutines; applies the method to two of the Cardington tests and analyses the results. FEAST, a suite of computer programmes that defines the behaviour of shell finite elements using a stress-resultant approach, was programmed for use with ABAQUS. The FEAST suite consists of two main programmes. The first, SRAS, is designed to model the behaviour of orthotropic plate sections at elevated temperatures. The second, FEAI, interfaces with the finite element package ABAQUS and allows realistic models of the behaviour of whole structures in fire conditions to be obtained. Phenomena modelled by FEAST include non-linear thermal gradients, non-linear material behaviour and coupling between membrane and bending forces. FEAST was used to analyse the behaviour of the Cardington Restrained Beam Test and the Cardington Corner Test. In both cases it was possible to produce a comprehensive set of results showing the variation of forces, moments and deflections in the structure under fire conditions. In addition, a number of parametric studies were performed to determine the effect of factors such as slab temperature and coefficient of thermal expansion on the behaviour of the structure. Special attention was given to the role of tensile mebrane action. The results showed that the behaviour of the heated structure was very different to that of an unheated structure. The response of the structure was shown to be very strongly governed by restrained thermal expansion and by thermal gradients. Degradation of material properties were found to have only a secondary effect on the structural behaviour.en
dc.format.extent7235819 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherThe University of Edinburgh. College of Science and Engineering. School of Engineering and Electronicsen
dc.relation.hasversionM. Gillie, A.S. Usmani and J.M Rotter. Modelling Heated Composite Floor Slabs with Reference to the Cardington Experiments. Fire Safety Journal. Volume 36, Issue 8en
dc.relation.hasversionM. Gillie, A.S. Usmani and J.M. Rotter. A Structural Analysis of the First Cardington Test. Journal of Constructional Steel Research. Volume 57, Issue 6en
dc.relation.hasversionA.S. Usmani, J.M. Rotter, S. Lamont, A.M. Sanad and M. Gillie. Fundamental Principles of Structural behaviour under Thermal Effects. Fire Safety Journal. Volume 36, Issue 8en
dc.relation.hasversionM. Gillie. Modelling Heated Composite Floor slabs with ABAQUS using a UGENS subroutine. In Proceedings of the ABAQUS Users' Conference 2000 pp335-354, Hibbit, Karlson and Sorrenson, Pawtucket RI, USAen
dc.relation.hasversionM. Gillie and A.S. Usmani. An Analysis of the first Cardington test Using Stress-Resultant Shell Elements. In Proceedings of the First International Structures in Fire Workshop, pp245-266, 2000en
dc.relation.hasversionJ.M. Rotter, A.M Sanad, A.S. Usmani and M. Gillie. Structural Performance of Reduntant Structures under Local Fire Conditions. In Proceedings of Interflam '99. Edinburgh, Scotland. 1999en
dc.subject.otherFire safetyen
dc.subject.otherComposite Steel Framed Structuresen
dc.subject.otherCardington Testsen
dc.subject.otherABAQUSen
dc.subject.otherFEASTen
dc.titleThe Behaviour of Steel-Framed Composite Structures in Fire Conditionsen
dc.typeThesis or Dissertation
dc.type.qualificationlevelDoctoralen
dc.type.qualificationnamePhD Doctor of Philosophyen


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