Time-Dependent Buckling Analysis of Concrete-Filled Steel Tubular Arch with Interval Viscoelastic Effects
Publication: Journal of Structural Engineering
Volume 143, Issue 7
Abstract
In this paper, a finite-element-based computational method is proposed for time-dependent structural stability analysis of a concrete-filled steel tubular (CFST) arch with uncertain parameters. Specifically, the targeted uncertainty includes the mercurial effects of the creep and shrinkage of the concrete core, which inevitably affect the structural performance of the CFST arch. The structural stability of the composite arch is systematically investigated under the influence of uncertain creep and shrinkage in a time-dependent fashion. The proposed computational scheme efficiently establishes the quantitative long-term stability envelope for CFST arches against uncertain viscoelastic effects. In order to demonstrate the effectiveness and efficiency of the proposed time-dependent structural stability analysis for CFST arches, practically motivated numerical examples are thoroughly investigated throughout this work.
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Acknowledgments
This research work was supported by the Australian Research Council through Discovery Projects DP140101887 and DP160103919. The authors would like to sincerely express our gratitude to all the anonymous reviewers for their valuable comments and constructive suggestions.
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©2017 American Society of Civil Engineers.
History
Received: Mar 16, 2016
Accepted: Dec 20, 2016
Published online: Mar 15, 2017
Published in print: Jul 1, 2017
Discussion open until: Aug 15, 2017
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