Behavior of Self-Anchored Suspension Bridges in the Structural System Transformation
Publication: Journal of Bridge Engineering
Volume 18, Issue 8
Abstract
Based on the experimental data from a scaled model of the Liede Bridge in Guangzhou, China, the nonlinear behavior of a self-anchored suspension bridge during the process of structural system transformation has been systematically and comprehensively studied. The variation of main cable deformation, hanger tension, and main girder stress during the transformation process is analyzed, and their relationships with the different states of structural system are studied. The characteristics and distribution patterns of the lateral torsional angle of spatial cable clamps are identified. In this paper, the principles of the two stages of construction control for self-anchored suspension bridges are introduced, and construction control targets and error elimination methods for each stage are also discussed. Based on the measured results of an in situ static load test, the response characteristics of main cable axial deformation, hanger tension, and deflection stress of the main girder are described under the most unfavorable unbalanced loading case. The effects induced by the secondary dead and live load are obtained by a linear analysis procedure according to the accumulative theory.
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Acknowledgments
This study was sponsored by National Natural Science Foundation of China (No. 50878059, 50978062), Science and Technology Planning Project of Guangdong Province (No. 2010A030200014), Science and Technology Planning Major Project of Guangzhou City (No. 2011Y2-00006), and the Research Projects of Guangzhou Municipal Universities (No. 10A005). Visits to Guangzhou University, China by the third writer were made possible by the Department of Civil and Environmental Engineering of University of Tennessee, Knoxville.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 18 • Issue 8 • August 2013
Pages: 712 - 721
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jan 9, 2012
Accepted: Jun 12, 2012
Published online: Jul 21, 2012
Published in print: Aug 1, 2013
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