Experimental and Numerical Investigation of Shear Behavior of RC Beams Strengthened by Ultra-High Performance Concrete
Source abstract
Abstract
This paper presents a study on the shear behavior of reinforced concrete (RC) beams strengthened by jacketing the surfaces of the beams using ultra-high performance fiber reinforced concrete (UHPC). The surfaces of the RC beams were prepared by sandblasting and UHPC was cast in situ over the surfaces of RC beams. The beams were strengthened using two different strengthening configurations; (i) two longitudinal sides strengthening (ii) three sides strengthening. The bond between normal concrete and UHPC was examined by conducting splitting tensile strength and slant shear strength tests on composite cylindrical specimens cast using normal concrete and UHPC. The control and strengthened beam specimens were tested using four-point loading arrangement maintaining different shear span-to-depth ratios. The results of tested beams showed the beneficial effects of strengthening the RC beams using UHPC, as evident from enhancement of the shear capacity and shifting of the failure mode from brittle to ductile with more stiff behavior. In addition, a non-linear finite element model (FEM) was developed to examine the sufficiency of the experimental results used to study the shear behavior of control and strengthened beams. The failure loads and the crack patterns determined experimentally matched well with those predicted using the proposed model with a reasonably good degree of accuracy.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Innovative concrete reinforcement materials · Concrete Corrosion and Durability
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. ACI-Committee 546. (2014). 546.3R-14: guide to materials selection for concrete repair (p. 15). Farmington Hills: American Concrete Institute.
2. Ahmad, S., Hakeem, I., & Maslehuddin, M. (2015). Development of an optimum mixture of ultra-high performance concrete. European Journal of Environmental and Civil Engineering, 20(9), 1106–1126.10.1080/19648189.2015.1090925 ↗
3. Alaee, F. J., Karihaloo, B. L., & Asce, F. (2003). Retrofitting of reinforced concrete beams with CARDIFRC. Journal of Composites for Construction, 7(August), 174–186.10.1061/(ASCE)1090-0268(2003)7:3(174) ↗
4. Al-Osta, M. A. (2018). Exploitation of ultrahigh-performance fibre-reinforced concrete for the exploitation of ultrahigh-performance fibre-reinforced concrete for the strengthening of concrete structural members. Advances in Civil Engineering. https://doi.org/10.1155/2018/8678124 .10.1155/2018/8678124 ↗
5. Al-Osta, M. A., Isa, M. N., Baluch, M. H., & Rahman, M. K. (2017). Flexural behavior of reinforced concrete beams strengthened with ultra-high performance fiber reinforced concrete. Construction and Building Materials, 134, 279–296.10.1016/j.conbuildmat.2016.12.094 ↗
6. Altin, S., Anil, Ö., & Kara, M. E. (2005). Improving shear capacity of existing RC beams using external bonding of steel plates. Engineering Structures, 27(5), 781–791.10.1016/j.engstruct.2004.12.012 ↗
7. ASTM International. (2004). ASTM C496/C 496M Standard test method for splitting tensile strength of cylindrical concrete. West Conshohocken, PA: ASTM International.
8. ASTM International. (2013). ASTM C882-99 standard test method for bond strength of epoxy-resin systems used with concrete. West Conshohocken, PA: ASTM International.
9. ASTM International. (2014). ASTM C469 Standard test method for static modulus of elasticity and Poisson’s ratio of concrete (Vol. 04). West Conshohocken, PA: ASTM International.
10. ASTM International. (2016). ASTM C109: Standard test method for compressive strength of hydraulic cement mortars (Vol. 04). West Conshohocken, PA: ASTM International.
11. ASTM International. (2017). ASTM C39 Standard test method for compressive strength of cylindrical concrete specimens. West Conshohocken, PA: ASTM International.
12. Bakhsh, K. N. (2010). Evaluation of bond strength between overlay and substrate in concrete repairs. Master Degree Thesis.
13. Bastiien-Masse, M., & Brühwiler, E. (2014). Ultra-high performance fiber reinforced concrete for strengthening and protecting bridge deck slabs. In Bridge maintenance, safety, management and life extension (pp. 2176–2182). CRC Press-Taylor & Francis Group, Boca Raton.10.1201/b17063-333 ↗
14. Birtel, P. M. V. (2007). Parameterised finite element modelling of RC beam shear failure. In ABAQUS users’ conference, (pp. 95–108).
15. Chalioris, C. E., Thermou, G. E., & Pantazopoulou, S. J. (2014). Behaviour of rehabilitated RC beams with self-compacting concrete jacketing—analytical model and test results. Construction and Building Materials, 55, 257–273.10.1016/j.conbuildmat.2014.01.031 ↗
16. Chen, J. F., & Teng, J. G. (2003). Shear capacity of FRP-strengthened RC beams: FRP debonding. Construction and Building Materials, 17, 27–41.10.1016/S0950-0618(02)00091-0 ↗
17. Farhat, F. A., Nicolaides, D., Kanellopoulos, A., & Karihaloo, B. L. (2007). High performance fibre-reinforced cementitious composite (CARDIFRC)—performance and application to retrofitting. Engineering Fracture Mechanics, 74(1–2), 151–167.10.1016/j.engfracmech.2006.01.023 ↗
18. Hussein, L., & Amleh, L. (2015). Structural behavior of ultra-high performance fiber reinforced concrete-normal strength concrete or high strength concrete composite members. Construction and Building Materials, 93, 1105–1116.10.1016/j.conbuildmat.2015.05.030 ↗
19. Julio, E. N., Branco, F. A., & Silva, V. D. (2004). Concrete-to-concrete bond strength Influence of the roughness of the substrate surface. Construction and Building Materials, 18(9), 675–681.10.1016/j.conbuildmat.2004.04.023 ↗
20. Lampropoulos, A. P., Paschalis, S. A., Tsioulou, O. T., & Dritsos, S. E. (2016). Strengthening of reinforced concrete beams using-ultra high performance fibre reinforced concrete (UHPFRC). Engineering Structures, 106, 370–384.10.1016/j.engstruct.2015.10.042 ↗
21. Lee, J., & Fenves, G. (1998). Plastic-damage model for cyclic loading of concrete structures. Journal of Engineering Mechanics, 124(8), 892–900.10.1061/(ASCE)0733-9399(1998)124:8(892) ↗
22. Li, V. C. (2004). High performance fiber reinforced cementitious composites as durable material for concrete structure repair. Restoration of Buildings and Monuments, 10(2), 163–180. (In German).10.1515/rbm-2004-5844 ↗
23. Lubliner, J., Oliver, J., Oller, S., & Oñate, E. (1989). A plastic-damage model for concrete. International Journal of Solids and Structures, 25(3), 299–326.10.1016/0020-7683(89)90050-4 ↗
24. Martinola, G., Meda, A., Plizzari, G. A., & Rinaldi, Z. (2010). Strengthening and repair of RC beams with fiber reinforced concrete. Cement and Concrete Composites, 32(9), 731–739.10.1016/j.cemconcomp.2010.07.001 ↗
25. Mercan, B. (2011). Modeling and behaviour of prestressed concrete spandrel beams. Ph.D. Thesis.
26. Momayez, A., Ehsani, M. R., Ramezanianpour, A. A., & Rajaie, H. (2005). Comparison of methods for evaluating bond strength between concrete substrate and repair materials. Cement and Concrete Research, 35, 748–757.10.1016/j.cemconres.2004.05.027 ↗
27. Noshiravani, T., & Brühwiler, E. (2013). Experimental investigation on reinforced ultra-high performance fiber reinforced concrete composite beams subjected to combined bending and shear. ACI Structural Journal, 110(2), 251.
28. Online Documentation Simulia. (2016). Abaqus user’s manual.
29. Ruano, G., Isla, F., Sfer, D., & Luccioni, B. (2015). Numerical modeling of reinforced concrete beams repaired and strengthened with SFRC. Engineering Structures, 86, 168–181.10.1016/j.engstruct.2014.12.030 ↗
30. Sümer, Y., & Aktaş, M. (2015). Defining parameters for concrete damage plasticity model. Challenge Journal of Structural Mechanics, 1(3), 149–155.