Effect of main and NSM reinforcing materials on the behavior of the shear strengthened RC beams with NSM reinforced HSC layers and bars
Source abstract
Abstract
It became common practice to utilize near-surface mounted (NSM) bars to improve the shear capacity of steel-reinforced concrete (RC) beams. Consequently, carbon fiber-reinforced polymer (FRP) is usually used to improve RC beams' shear performance. Conversely, the use of Glass FRP (GFRP) for enhancing the shear behavior of the steel-RC and GFRP-RC beams is still limited. This study used NSM GFRP or steel bars to strengthen RC beams reinforced in tension with steel or GFRP bars. In addition, a new NSM technique was conducted using high-strength concrete (HSC) layers reinforced with GFRP or steel bars bonded within grooves to enhance beams' shear capacity. The results of seventeen beams used in the tests showed that NSM HSC layers improved the shear performance of RC beams more than NSM bars. Also, the beams reinforced in tension with steel bars had higher shear efficiency and were stiffer than those reinforced with GFRP bars. Conversely, the shear efficiency of steel RC beams strengthened in shear with internal stirrups or NSM reinforcement (or both) increased by 142.8–211.7% compared to GFRP RC beams without internal and NSM shear reinforcement. Conversely, the shear capacity of the steel-RC beams strengthened in shear with internal stirrups or NSM reinforcement (or both) increased by 153.5–279.9% compared to the corresponding beam without GFRP RC beam without internal and NSM shear reinforcement. The numerical analysis using the ABAQUS program showed great effects of the tension reinforcement and the NSM materials on the strain of longitudinal bars, stirrups and NSM reinforcement.
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 (65)
Show source-provided references
1. Durability of components of FRP-concrete bonded reinforcement systems exposed to chloride environments10.1016/j.compstruct.2021.114697 ↗
2. Experimental and statistical dry-fracture assessment of the CFRP-concrete interface bond10.1016/j.istruc.2021.12.001 ↗
3. Short-term flexural behavior of concrete filled pultruded GFRP cellular and tubular sections with pin-eye connections for modular retaining wall construction10.1016/j.compstruct.2018.08.025 ↗
4. Performances, challenges and opportunities in strengthening reinforced concrete structures by using FRPs – A state-of-the-art review10.1016/j.engfailanal.2020.104480 ↗
5. Flexural behaviour of seawater–sea sand concrete beams reinforced with GFRP bars: effects of the reinforcement ratio, stirrup ratio, shear span ratio and prestress level
6. Static behaviour of glass fibre reinforced novel composite sleepers for mainline railway track10.1016/j.engstruct.2020.111627 ↗
7. Fiber-reinforced polymer composites in the construction of bridges: opportunities, problems and challenges10.3390/fib10040037 ↗
8. Fatigue performance of prestressed concrete beams using BFRP bars10.1016/j.conbuildmat.2017.09.086 ↗
9. Flexural behavior of prestressed CFRP reinforced concrete beams by two different tensioning methods10.1016/j.engstruct.2019.03.051 ↗
10. Durability of GFRP bars embedded in seawater sea-sand concrete: a coupling effect of prestress and immersion in seawater10.1016/j.conbuildmat.2022.126979 ↗
11. Performance and durability of in-plant partially cured GFRP bent bars in steam-cured precast concrete elements10.1061/(ASCE)CC.1943-5614.0001028 ↗
12. Deflection and cracking behavior of SFRSCC beams reinforced with hybrid prestressed GFRP and steel reinforcements10.1016/j.engstruct.2016.07.026 ↗
13. Analysis of serviceability limit state of GFRP prestressed concrete beams10.1016/j.compstruct.2015.08.062 ↗
14. The effects of bond, shrinkage and creep on cracking resistance of steel and GFRP RC members10.1016/j.compstruct.2017.12.025 ↗
15. In-plane seismic performance of unreinforced masonry walls strengthened with unbonded prestressed wire rope units10.1016/j.engstruct.2012.06.017 ↗
16. Effect of prestressing level on the time-dependent behavior of GFRP prestressed concrete beams10.1061/(ASCE)CC.1943-5614.0000783 ↗
17. Factors affecting the time-dependent behaviour of GFRP prestressed concrete beams
18. Flexural strength and serviceability evaluation of concrete beams reinforced with deformed GFRP bars10.1016/j.engstruct.2019.02.024 ↗
19. The effect of transverse and flexural reinforcement on deflection and cracking of GFRP bar reinforced concrete beams10.1016/j.compositesb.2018.12.127 ↗
20. Experimental study on flexural behavior of concrete beam reinforced with GFRP and steel-fiber composite bars
21. Analytical and experimental flexural behavior of concrete beams reinforced with glass fiber reinforced polymers bars10.1016/j.conbuildmat.2015.03.057 ↗
22. Size effect on the shear failure of high-strength concrete beams reinforced with basalt FRP bars and stirrups10.1016/j.conbuildmat.2019.03.076 ↗
23. Shear strength calculating model of FRP bar reinforced concrete beams without stirrups10.1016/j.engstruct.2020.111025 ↗
24. Can Stirrups Suppress Size Effect on Shear Strength of RC Beams?10.1061/(ASCE)ST.1943-541X.0000295 ↗
25. A model for shear strength of FRP bar reinforced concrete beams without stirrups
26. Size effect on shear strength of FRP reinforced concrete beams without stirrups10.1061/(ASCE)CC.1943-5614.0000346 ↗
27. Concrete beams with different arrangements of GFRP flexural and shear reinforcement10.1016/j.engstruct.2019.109333 ↗
28. Environmental impact on the durability of FRP reinforcing bars
29. Shear strengthening of reinforced concrete beams using CFRP wraps10.1016/j.prostr.2019.08.029 ↗
30. Repair and strengthening of shear-deficient reinforced concrete beams using Carbon Fiber Reinforced Polymer10.1016/j.compstruct.2019.110963 ↗
31. Shear strength of externally u-bonded carbon fiber-reinforced polymer high-strength reinforced concrete
32. Shear behaviour of RC deep beams retrofitted with externally bonded GFRP fabrics: Experimental and numerical study10.1016/j.istruc.2022.10.042 ↗
33. Fiber-reinforced polymer composites for construction - state-of-the-art review
34. An experimental approach for strengthening of RC deep beams with web openings using GFRP fabrics and gas actuated fasteners
35. Use of bore-epoxy anchorage system with CFRP sheets for shear strengthening of RC beams10.1016/j.prostr.2020.11.082 ↗
36. Shear behavior of RC T-beams externally strengthened with anchored high modulus carbon fiber-reinforced polymer (CFRP) laminates10.1016/j.compstruct.2021.114198 ↗
37. Strengthening of shear deficient rc deep beams using gfrp sheets and mechanical anchors10.1139/cjce-2019-0333 ↗
38. Bond between near-surface mounted fiber-reinforced polymer rods and concrete in structural strengthening
39. Shear strengthening of reinforced concrete beams with near-surface mounted fiber-reinforced polymer rods
40. Strengthening of RC beams in shear using GFRP inclined strips - An experimental study10.1016/j.conbuildmat.2008.04.008 ↗
41. Performance of reinforced concrete T beams strengthened in shear with NSM CFRP laminates10.1016/j.engstruct.2009.10.001 ↗
42. Finite element modeling of reinforced concrete beams externally strengthened in flexure with side-bonded FRP laminates10.1016/j.compositesb.2019.106952 ↗
43. Efficiency of near surface mounted technique using fiber reinforced polymers for the flexural strengthening of RC beams10.1016/j.conbuildmat.2016.04.152 ↗
44. M. Rashmi, V.N. Anand, N.C. Balaji, shear strengthening of RC beams using near surface mounted technique with glass fiber reinforced polymer, AIP Conf. Proc. 2327 (2021). https://doi.org/10.1063/5.0039664.10.1063/5.0039664 ↗
45. Shear strengthening of RC beams by NSM technique using GFRP strips for sustainable and resilient infrastructure10.1007/978-981-19-0189-8_2 ↗
46. ECP 203, (2018), Egyptian Code of Practice for Design and Construction of Concrete Structures, ‘‘Annex III”, Manual Laboratory tests for Concrete Material. Ministry of Housing, Utilities & Urban Communities, (n.d.).
47. Strength and ductility of innovative hybrid NSM reinforced and FRP confined short RC columns under axial compression10.1016/j.compstruct.2017.05.033 ↗
48. A. Sharma, Experimental Study on the Effectiveness of Inorganic Bonding Materials for Near-Surface Mounting Shear Strengthening of Prestressed Concrete Beams, (2020).
49. Efficient near surface mounted CFRP shear strengthening of high strength prestressed concrete beams – An experimental study10.1016/j.compstruct.2017.07.095 ↗
50. Eurocode2, E.N. 1992–1-1: Design of concrete structures - Part 1–1: General rules and rules for buildings, 2004.
51. ACI 435R-95, Control of Deflection in Concrete Structures, 2003.
52. S.K., Hibbitt,Inc, ABAQUS theory manual, user manual and example manual, version 6.7, Providence, RI. 2000., 2000.
53. Numerical study of a bonded steel and concrete composite beam10.1016/j.compstruc.2008.04.002 ↗
54. Flexural behavior of steel beams strengthened by carbon fiber reinforced polymer plates - Three dimensional finite element simulation10.1016/j.matdes.2009.09.010 ↗
55. Defining parameters for concrete damage plasticity model
56. fib - CEB-FIP, Model Code 2010, 2010.
57. Numerical simulation of bond-slip interface and tension stiffening in GFRP RC tensile elements10.1016/j.compstruct.2016.06.048 ↗
58. Experimental and numerical study on behaviour of HSFRC overlay strip strengthened fl exural deficient RC beams10.1016/j.engstruct.2019.109561 ↗
59. Nonlinear behavior of RC beams strengthened with strain hardening cementitious composites subjected to monotonic and cyclic loads10.1016/j.aej.2016.01.032 ↗
60. Effect of axial stiffness of NSM FRP reinforcement and concrete cover confinement on flexural behaviour of strengthened RC beams: Experimental and numerical study10.1016/j.engstruct.2018.07.062 ↗
61. Flexural response and load capacity of reinforced concrete beams strengthened with reinforced mortar layer10.1016/j.engstruct.2021.112884 ↗
62. Microplane-based nonlinear finite element analysis of fiber-reinforced polymer-strengthened reinforced concrete columns
63. Analytical and finite element studies on hybrid FRP strengthened RC column elements under axial and eccentric compression10.1016/j.compstruct.2017.09.109 ↗
64. Effect of cyclic damage on the performance of RC square columns strengthened using hybrid FRP composites under axial compression10.3390/fib7100090 ↗
65. Experimental and finite element studies on the flexural behavior of reinforced concrete elements strengthened with hybrid FRP technique10.1016/j.compstruct.2018.10.028 ↗