Full-Scale Test of Composite Frame under Large Cyclic Loading
Publication: Journal of Structural Engineering
Volume 133, Issue 2
Abstract
This paper presents an experimental study on a steel moment frame with reinforced concrete (RC) floor slab that was subjected to horizontal cyclic loading leading to very large deformations. The primary objective of this test was to examine the interaction (composite action) between the steel beam and the RC floor slab. The steel beam moment capacity increased about 1.5 times in positive bending with the presence of the RC floor slab. During small beam rotations of , the beam strength increased 1.2–1.4 times in negative loading, but composite action did not affect the negative beam moment capacity for larger rotations. The effective width estimated from the slab compressive force approximately equals the column width. Fracture at the bottom flange was notable due to the presence of the slab in the composite beam. Complete separation of the beam-to-column connections was not achieved even at a beam rotation of , under which the composite connections still possessed bending resistance equal to about 10% of the maximum bending capacity when sustaining positive bending.
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Acknowledgments
The writers are grateful to Y. Maruoka of Maruoka Research Institute and Y. Tagawa of Yokohama National University for providing useful information related to the contents of this paper. The research was sponsored by the Ministry of Education, Culture, Sports, Science, and Technology (Basic Research Category S: 14102018). The first writer was the principal investigator of this project. The writers express their gratitude for the sponsorship. The donation of steel by the Japan Iron and Steel Federation is also acknowledged.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 133 • Issue 2 • February 2007
Pages: 297 - 304
Copyright
© 2007 ASCE.
History
Received: Jun 7, 2005
Accepted: Apr 13, 2006
Published online: Feb 1, 2007
Published in print: Feb 2007
Notes
Note. Associate Editor: Scott A. Civjan
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