The diagonal tension behavior of fiber reinforced concrete beams |
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| Affiliation: | 1. Research Centre of New Style Building Material and Structure, Zhengzhou University, Zhengzhou, Henan 450002, China;2. Faculty of Engineering and Information Sciences, University of Wollongong, NSW 2522, Australia;1. Composite Construction Laboratory (CCLab), École Polytechnique Fédérale de Lausanne (EPFL), Station 16, 1015 Lausanne, Switzerland;2. Institute for Civil and Environmental Engineering (IBU), HSR Rapperswil University of Applied Sciences, Oberseestrasse 10, 8640 Rapperswil, Switzerland |
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| Abstract: | This research studied the diagonal tension behavior of 16 beams reinforced with longitudinal bars and steel fibers. The variable parameters included the concrete compressive strength and the percentage of fibers (0%, 0.5%, 1.0% and 1.5% by volume). The beams were tested under static loads resulting in high diagonal tension stresses. The shear reinforcement was composed of stirrups instrumented with strain gages to detect the effect of the fibers on the strains. Research results indicate that as the fiber volume increases, the shear strength and the ductility of the beams increased, providing significantly higher shear strength than specified by the ACI-318 Code. |
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