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Computers and Concrete Volume 23, Number 1, January 2019 , pages 061-68 DOI: https://doi.org/10.12989/cac.2019.23.1.061 |
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Computational optimized finite element modeling of mechanical interaction of concrete with fiber reinforced polymer |
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Khosro Shahpoori Arani, Yousef Zandi, Binh Thai Pham, M.A. Mu\'azu, Javad Katebi, Mohammad Mohammadhassani, Seyedamirhesam Khalafi, Edy Tonnizam Mohamad, Karzan Wakil and Majid Khorami
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| Abstract | ||
| This paper presents a computational rational model to predict the ultimate and optimized load capacity of reinforced concrete (RC) beams strengthened by a combination of longitudinal and transverse fiber reinforced polymer (FRP) composite plates/sheets (flexure and shear strengthening system). Several experimental and analytical studies on the confinement effect and failure mechanisms of fiber reinforced polymer (FRP) wrapped columns have been conducted over recent years. Although typical axial members are large-scale square/ rectangular reinforced concrete (RC) columns in practice, the majority of such studies have concentrated on the behavior of small-scale circular concrete specimens. A high performance concrete, known as polymer concrete, made up of natural aggregates and an orthophthalic polyester binder, reinforced with non-metallic bars (glass reinforced polymer) has been studied. The material is described at micro and macro level, presenting the key physical and mechanical properties using different experimental techniques. Furthermore, a full description of non-metallic bars is presented to evaluate its structural expectancies, embedded in the polymer concrete matrix. In this paper, the mechanism of mechanical interaction of smooth and lugged FRP rods with concrete is presented. A general modeling and application of various elements are demonstrated. The contact parameters are defined and the procedures of calculation and evaluation of contact parameters are introduced. The method of calibration of the calculated parameters is presented. Finally, the numerical results are obtained for different bond parameters which show a good agreement with experimental results reported in literature. | ||
| Key Words | ||
| fiber-reinforced polymers; reinforced concrete (FRP); mechanical interaction; bond; contact; friction | ||
| Address | ||
| Khosro Shahpoori Arani: Department of Civil Engineering, Qeshm International Branch, Islamic Azad University, Qeshm, Iran Yousef Zandi: Department of Civil Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran Binh Thai Pham: Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam M.A. Mu\\\'azu: Department of Civil Engineering, Jubail University College, Royal Commission of Jubail and Yanbu, Jubail, Saudi Arabia Javad Katebi: Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran Mohammad Mohammadhassani: Seismology Engineering & Risk Department, Road, Housing & Urban Development Research Center (BHRC), Tehran, Iran Seyedamirhesam Khalafi: Department of Construction Management, University of Houston, USA Edy Tonnizam Mohamad: Centre of Tropical Geoengineering (GEOTROPIK), Faculty of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia Karzan Wakil: Research Center, Sulaimani Polytechnic University, Sulaimani 46001, Kurdistan Region, Iraq Majid Khorami: Facultad de Arquitectura y Urbanismo, Universidad UTE, Calle Rumipamba s/n y Bourgeois, Quito, Ecuador | ||