Advanced Steel Construction

Vol. 10, No. 2, pp. 151-178 (2014)




Sheng-gang Fan 1,*, Gan-Ping Shu 1, Guang-Jun She 2, J.Y. Richard Liew 3

1School of Civil Engineering, Key Laboratory of Concrete and Prestressed Structures of Ministry of Education

Southeast University, Nanjing, 210096, China

2Nanjing Architectural Design and Research Institute Co., Ltd., Nanjing, 210000, China

3Department of Civil engineering, National University of Singapore, Singapore, 117576, Singapore

*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)

Received: 16 October 2012; Revised: 2 February 2013; Accepted: 16 December 2013




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For large-space steel structures in fire, an accurate temperature field model is essential to predict the temperature distribution for response analysis of the structure. Based on the field model theories of air thermodynamics and heat transfer, the combustion process and temperature distribution of large-space steel structures in fire were analyzed in this paper. The temperature field model of large-space fire, including fire source, smoke plume and smoke layers models, was established.  Closed form formulas were developed to predict the air temperature, within its application limit, near the ceiling of large-space steel structures in fire. The accuracy of the formulas was verified by comparing with results obtained from numerical method based on field models. This research provides an important theoretical basis for further studying the behavior of large-space steel structures in fire.



Large-space steel structures, fire, temperature field, computational method, numerical simulation, thermodynamics, heat transfer


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