Print Email Facebook Twitter Experimental and analytical study on shear behavior of strain-hardening cementitious composite beams reinforced with fiber-reinforced polymer bars Title Experimental and analytical study on shear behavior of strain-hardening cementitious composite beams reinforced with fiber-reinforced polymer bars Author Gu, D. (TU Delft Concrete Structures; Southeast University) Pan, Jinlong (Southeast University) Lukovic, M. (TU Delft Concrete Structures) He, Jixuan (Southeast University) Date 2022 Abstract Application of fiber-reinforced polymer (FRP) reinforcement in concrete beams may cause large deflection and crack width, as well as low shear capacity and ductility due to relatively small stiffness of FRP materials. To avoid these unfavorable factors and evaluate the shear behavior of FRP-reinforced structural members, a high-performance strain-hardening cementitious composite (SHCC) is introduced to substitute conventional concrete in reinforced beams, and four-point bending test is conducted in this study. Six FRP-reinforced SHCC beams with different transverse reinforcement ratios and shear spans, as well as one concrete reference beam, were tested. According to the test results, the FRP-reinforced SHCC beam showed enhanced shear carrying capacity and superior ductility compared with the concrete beams. The shear span to effective depth ratio as well as the stirrup ratio has a great influence on the shear behavior of FRP-reinforced SHCC beams, including the failure mode, load-carrying capacity, crack propagation, and ductility. Finally, a simplified truss-strut model for predicting shear carrying capacity of steel or FRP-reinforced SHCC beams is proposed, and a good agreement is achieved with the experimental results. Subject ductilityfailure modefiber-reinforced polymer (FRP) reinforcementshear strengthsimplified truss-strut modelstrain-hardening cementitious composite (SHCC) To reference this document use: http://resolver.tudelft.nl/uuid:dcb8bd14-c5e0-4f4c-9657-78b14a99cbc0 DOI https://doi.org/10.1002/suco.202100544 Embargo date 2022-08-01 ISSN 1464-4177 Source Structural Concrete, 23 (2), 1080-1099 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2022 D. Gu, Jinlong Pan, M. Lukovic, Jixuan He Files PDF Structural_Concrete_2022_ ... itious.pdf 4.2 MB Close viewer /islandora/object/uuid:dcb8bd14-c5e0-4f4c-9657-78b14a99cbc0/datastream/OBJ/view