Timber-Concrete Composite Systems with Ductile Connections
Publication: Journal of Structural Engineering
Volume 141, Issue 7
Abstract
Although concrete in compression and wood in flexural tension are both intrinsically brittle, composite beams made of these two materials can develop a reliable measure of softening before failure when ductile shear connectors are used to link concrete and wood, provided the connectors are dimensioned to yield before failure of wood or concrete. This article describes an analytical method for predicting the complete load-deflection response of timber/concrete composite beams with ductile shear connectors. The approach involves the superposition of results obtained from a series of linear models, each of which has a progressively smaller number of connectors corresponding to the order in which they yield. The nonlinear behavior of the system can thus be determined without iteration using only linear computations. The analytical method is validated against experimental data.
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Acknowledgments
The authors gratefully acknowledge the financial support for this work provided by the Natural Sciences and Engineering Research Council of Canada through the Strategic Network for Engineered Wood-Based Building Systems.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 141 • Issue 7 • July 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Oct 23, 2013
Accepted: Jun 17, 2014
Published online: Aug 18, 2014
Discussion open until: Jan 18, 2015
Published in print: Jul 1, 2015
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