Impact Response of Reinforced Concrete Beam and Its Analytical Evaluation
Publication: Journal of Structural Engineering
Volume 135, Issue 8
Abstract
This paper examines the impact responses of reinforced concrete (RC) beams through an experimental study and presents an analytical model developed to predict the maximum midspan deflection and maximum impact load, which aids as an important performance index to evaluate the damage levels of RC beams when subjected to impact loadings. The experimental study involves a drop hammer impact test and investigates the influence of drop height and the effect of the amount of longitudinal steel reinforcement contributes to the response of RC beams. The RC beam specimens used in the experiment comprised of under-reinforced sections provided with sufficient amount of transverse reinforcements to allow for an overall flexural failure. The experimental impact responses of the RC beams were simulated with two-degree-of-freedom mass-spring-damper system model, in which the loading rate effects were duly considered. The analytical results are in good agreement with the experimental results for the RC beams that exhibited overall flexural failure.
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Acknowledgments
The writers thank K. Masuda and K. Hagishima, who are former students in the National Defense Academy, Japan for their assistance in performing the impact loading test and rapid loading test.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 135 • Issue 8 • August 2009
Pages: 938 - 950
Copyright
© 2009 ASCE.
History
Received: Jun 29, 2008
Accepted: Mar 4, 2009
Published online: Jul 15, 2009
Published in print: Aug 2009
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