Experimental investigation on continuous reinforced SCC deep beams and Comparisons with Code provisions and models
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2017-01-15Rights
© 2016 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/Peer-Reviewed
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The test results on eight two-span deep beams made of self-compacting concrete (SCC) are presented and discussed in this paper. The main parameters investigated were the shear span-to-depth ratio, and the amount and configuration of steel reinforcement. All beams failed due to a major diagonal crack formed between the applied mid-span load and the intermediate support separating the beam into two blocks: the first one rotated around the end support leaving the other block resting on the other two supports. Both concrete compressive strength and web reinforcement had a major effect in controlling the shear capacity of the beams tested. For the shear span-to-depth ratio considered, the vertical web reinforcement had more influence on the shear capacity of the specimens than the horizontal web reinforcement. The shear provisions of the ACI 318M-11 are unconservative for most of the beams tested. Comparisons of test results with the strut-and-tie model (STM) suggested by ACI 318M-11, EC2 and CSA23.4-04 showed that the predictions are reasonable for continuous deep beams made with low and medium compressive strength. Although the equation suggested by ACI 318M-11 is very simple, its prediction is more accurate than the STM suggested by different design codes.Version
Accepted ManuscriptCitation
Khatab MAT, Ashour AF, Sheehan T et al (2016) Experimental investigation on continuous reinforced SCC deep beams and Comparisons with Code provisions and models. Engineering Structures. 131: 264-274.Link to Version of Record
https://doi.org/10.1016/j.engstruct.2018.02.069Type
Articleae974a485f413a2113503eed53cd6c53
https://doi.org/10.1016/j.engstruct.2018.02.069