Full-Scale Experimental Determination of Concrete Pipe Joint Behavior and Its Modeling
Publication: Journal of Infrastructure Systems
Volume 14, Issue 3
Abstract
As a consequence of unequal loading or variable soil conditions, longitudinal bending of buried gravity pipes leads to circumferential pipe cracking or joint opening, which results in groundwater infiltration or leakage. Since joints considerably affect longitudinal pipe behavior, an advanced investigation of this aspect requires knowledge of the joint mechanical properties and particularly of its stiffness. An experimental apparatus has been developed in order to determine the joint behavior under various loading conditions. Results of compression, shear, and bending tests are given in terms of force-displacement plots. A simple rheological bilinear model of the joint is elaborated from compression and shear tests and then validated on the experimental bending results. In general a good agreement is found between model and experimental output. This simple model will be implemented in numerical simulations of buried pipe behavior.
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Acknowledgments
The writers would like to thank Bonna Sabla for partial funding of this experimental campaign and for its logistical contribution to this research. In particular, the writers thank Philippe Henri for his participation in the design of the experimental device. They also thank the French Ministry of Research for partial funding of this research.
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Information & Authors
Information
Published In
Journal of Infrastructure Systems
Volume 14 • Issue 3 • September 2008
Pages: 230 - 240
Copyright
© 2008 ASCE.
History
Received: Nov 1, 2006
Accepted: Mar 30, 2007
Published online: Sep 1, 2008
Published in print: Sep 2008
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