NDLI: A Study on the Effect of Compartment Fires on the Behaviour of Multi-Storey Steel Framed Structures

Content Provider	Springer Nature Link
Author	Rackauskaite, Egle El Rimawi, Jamal
Copyright Year	2014
Abstract	In order to ensure safe evacuation of occupants and safe access for fire-fighters, current fire precautions aim to prevent fire spreading beyond the compartment where it started. The focus of this study is to assess the stability of structural components when localised fires occur in unprotected steel buildings. A three-storey three-bay symmetrical steel frame representing a typical office building was analysed using a finite element computer program. The influence of six different localised fire scenarios was investigated. For each fire scenario, the variation in deflections, bending moments and axial forces, as the temperature increases, were monitored up to failure of the structure. The results indicate that thermal expansion of the heated beams, leading to lateral movement of surrounding structural components, is an important factor. The resistance to this movement by the columns and general surrounding elements, which are not exposed to the fire, has a great influence on the redistribution of internal stresses. In general, this may lead to instability of columns, catenary action developing in beams, and eventually failure of the structure as a whole. The study suggests that critical localised fire scenarios are those where all the ground floor columns are affected, or where a whole bay through the height of the frame is heated. However, it has been shown that fire survival under any localised fire scenario is improved in comparison to that when the whole frame is heated. Therefore, fire compartmentation does not only provide safe means of escape, it is also beneficial for enhanced structural fire resistance.
Starting Page	867
Ending Page	886
Page Count	20
File Format	PDF
ISSN	00152684
Journal	Fire Technology
Volume Number	51
Issue Number	4
e-ISSN	15728099
Language	English
Publisher	Springer US
Publisher Date	2014-09-21
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Compartmental fire Steel Fire resistance Structural behaviour Multi-storey frame Civil Engineering Mechanics Characterization and Evaluation of Materials Physics
Content Type	Text
Resource Type	Article
Subject	Materials Science Safety, Risk, Reliability and Quality

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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