Behavior of Sway Two-Bay, Two-Story Composite Steel Frames in Fire
Publication: Journal of Structural Engineering
Volume 142, Issue 2
Abstract
The experimental results of three full-scale two-story, two-bay, composite steel frames under furnace loading are described briefly. During tests, the composite beams and steel columns were exposed to fire, and only the beam-to-column connections of the tested frames were protected. The furnace temperature, composite steel beam temperature, steel column temperature, horizontal displacements of the columns, and vertical deflections of the composite beams as well as the complete deformation process of the test frames observed during the heating phase and the cooling phase are given. By introducing the slope-deflection equations and joint equilibrium conditions at each joint, the critical temperatures of the buckling of two-story, two-bay, composite steel frames are determined for different furnace scenarios; therefore, this method can consider the effect of the axial force at different levels. The calculated critical temperatures agree well with the experimental results.
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Acknowledgments
This project was supported by the NSFC with Grant No. 51178143, the Huaqiao University with Grant No. 2014KJTD05, the authors deeply appreciated their support.
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Information
Published In
Journal of Structural Engineering
Volume 142 • Issue 2 • February 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Sep 17, 2014
Accepted: Jun 9, 2015
Published online: Aug 13, 2015
Discussion open until: Jan 13, 2016
Published in print: Feb 1, 2016
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