Experimental Study on Multicantilever Prestressed Composite Beams with Corrugated Steel Webs
Publication: Journal of Structural Engineering
Volume 136, Issue 9
Abstract
An experimental study was carried out to investigate the behavior of a new type multicantilever prestressed composite beams with corrugated steel webs (CBCW). The main mechanical performances of CBCW, such as efficiency of prestressing, creep and shrinkage of concrete slab, load distribution, and load-carrying capacity were focused on in this study. One scaled test specimen was constructed and tested. Based on strain measurements, stress in test specimen and load distribution factor were analyzed using theories of elasticity and plasticity. The bending resistance of specimen was also obtained. The test results indicate that the use of CBCW improves the prestressing efficiency and crack resistance capacity of CBCW. It also reveals that the CBCW has better ductility than the conventional system. In addition to the experimental study, new methods for analyzing the effect of creep and shrinkage, load distribution, and bending resistance capacity of CBCW are proposed. The proposed method gives satisfactory predictions in comparison with the test results.
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Acknowledgments
This program was supported by the Natural Science Foundation of Hunan Province, China (Grant No. UNSPECIFIED02JJY3058). The writers gratefully acknowledge the financial support.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 136 • Issue 9 • September 2010
Pages: 1098 - 1110
Copyright
© 2010 ASCE.
History
Received: Sep 28, 2009
Accepted: Feb 4, 2010
Published online: Feb 8, 2010
Published in print: Sep 2010
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