Effects of tension stiffening and shrinkage on the flexural behavior of reinforced UHPFRC beams
Source abstract
Abstract
This paper presents a study on the flexural behavior of Ultra-High-Performance Fiber-Reinforced Concrete (UHPFRC) beams, which included conventional reinforcing bars. The study focuses on critical design aspects, such as concrete shrinkage and cracking implications on the tension-stiffening phenomenon. An experimental program with two different sized flexural reinforced UHPFRC beams was run. Beams were cast and tested in a four-point bending test (4PBT) using UHPFRC with different amounts of fibers: 130 and 160 kg/m3 (1.66% and 2.00% in vol.) to cover a wide range of strain-softening and strain-hardening constitutive UHPFRC behaviors. A non-linear finite element model (NLFEM) was developed to validate the mechanical tensile characterization of UHPFRC when applied to reinforced elements. Both shrinkage and tension-stiffening effects were considered to improve the model. After the NLFEM simulation, very reliable results were obtained at both the service and ultimate load levels compared to the experimental ones. Finally, some aspects about the design of reinforced UHPFRC cross-sections under bending forces are addressed and satisfactorily compared to the experimental results.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Innovative concrete reinforcement materials · Structural Behavior of Reinforced Concrete · Concrete Properties and Behavior
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (61)
Show source-provided references
1. Fehling · 2014
2. Mechanical properties of ultra-high-performance fiber-reinforced concrete: a review10.1016/j.cemconcomp.2016.08.001 ↗
3. Characterizations of autogenous and drying shrinkage of ultra-high performance concrete (UHPC): an experimental study10.1016/j.cemconcomp.2018.05.009 ↗
4. The influence of steel fibre properties on the shrinkage of ultra-high performance fibre reinforced concrete10.1016/j.conbuildmat.2019.117993 ↗
5. Effectiveness of shrinkage-reducing admixture in reducing autogenous shrinkage stress of ultra-high-performance fiber-reinforced concrete10.1016/j.cemconcomp.2015.09.005 ↗
6. High-strength steel reinforced squat UHPFRC shear walls: cyclic behavior and design implications10.1016/j.engstruct.2017.02.068 ↗
7. Modeling of RC shear walls strengthened with ultra-high performance fiber reinforced concrete (UHPFRC) jackets10.1016/j.engstruct.2019.109696 ↗
8. An experimental and numerical study of reinforced ultra-high performance concrete slabs under blast loads10.1016/j.matdes.2015.05.045 ↗
9. Experimental investigation of ultra-high performance concrete slabs under contact explosions10.1016/j.ijimpeng.2016.02.007 ↗
10. Behaviour and analysis of ultra high performance fibre reinforced concrete (UHPFRC) skew slabs10.1016/j.engstruct.2019.109588 ↗
11. Composite model for predicting the punching resistance of R-UHPFRC–RC composite slabs10.1016/j.engstruct.2016.03.017 ↗
12. Punching shear strength of UHPFRC-RC composite flat plates10.1016/j.engstruct.2019.01.099 ↗
13. Strengthening of RC columns by ultra-high performance fiber reinforced concrete (UHPFRC) jacketing10.1016/j.conbuildmat.2019.117485 ↗
14. Behavior of ultra-high performance fiber reinforced concrete columns under blast loading10.1016/j.ijimpeng.2015.02.006 ↗
15. Response of normal-strength and ultra-high-performance fiber-reinforced concrete columns to idealized blast loads10.1016/j.engstruct.2014.01.015 ↗
16. Ultimate shear resistance of ultra-high performance fiber reinforced concrete-normal strength concrete beam10.1016/j.engstruct.2019.109825 ↗
17. Analysis of flexural and shear resistance of ultra high performance fiber reinforced concrete beams without stirrups10.1016/j.engstruct.2018.08.010 ↗
18. Analysis of flexure-shear behavior of UHPFRC beams based on stress field approach10.1016/j.engstruct.2013.04.024 ↗
19. Probabilistic numerical model of cracking in ultra-high performance fibre reinforced concrete (UHPFRC) beams subjected to shear loading10.1016/j.cemconcomp.2018.03.019 ↗
20. Experimental and numerical study on flexural behavior of ultra-high-performance fiber-reinforced concrete beams with low reinforcement ratios10.1139/cjce-2015-0384 ↗
21. Modeling the response of ultra high performance fiber reinforced concrete beams10.1016/j.proeng.2017.11.068 ↗
22. Structural performance of ultra-high-performance concrete beams with different steel fibers10.1016/j.engstruct.2015.08.029 ↗
23. Flexural response predictions for ultra-high-performance fibre-reinforced concrete beams10.1680/macr.10.00115 ↗
24. Structural behavior of ultra high performance concrete beams subjected to bending10.1016/j.engstruct.2010.07.017 ↗
25. Predicting the flexural behavior of ultra-high-performance fiber-reinforced concrete10.1016/j.cemconcomp.2016.09.005 ↗
26. Cracking behaviour of steel fibre reinforced concrete containing conventional steel reinforcement
27. Shrinkage-free tension stiffening law for various concrete grades10.1016/j.conbuildmat.2018.08.212 ↗
28. Evaluation of tension-stiffening, crack spacing and crack width of geopolymer concretes10.1016/j.conbuildmat.2017.11.085 ↗
29. Time-dependent tension-stiffening mechanics of fiber-reinforced and ultra-high-performance fiber-reinforced concrete10.1061/(ASCE)ST.1943-541X.0002107 ↗
30. Tension-stiffening effect in steel-reinforced UHPC composites: constitutive model and effects of steel fibers, loading patterns, and rebar sizes10.1016/j.compositesb.2018.09.091 ↗
31. Experimental and numerical studies of size effects of Ultra High Performance Steel Fibre Reinforced Concrete (UHPFRC) beams10.1016/j.conbuildmat.2013.07.061 ↗
32. Experimental and numerical study of the flexural behaviour of ultra-high performance fibre reinforced concrete beams10.1016/j.conbuildmat.2017.02.002 ↗
33. Finite element modelling to predict the flexural behaviour of ultra-high performance concrete members10.1016/j.engstruct.2019.01.046 ↗
34. Design guidelines for ductal prestressed concrete beams
35. Concrete structures, CommitteeBD/2
36. Recomendations for design and construction of high performance fiber reinforced composites with multiple fine cracks (HPFRCC)
37. Standard specifications for concrete structures
38. H.G. Russell, B.A. Graybeal, H.G. Russell, Ultra-high performance concrete: a state-of-the-art report for the bridge community., United States. Fed. Highw. Adm. No. FHWA-H, 2013: 163.
39. AASHTO LRFD Bridge Design Specifications, Am. Assoc. State Highw. Transp. Off., 2012.
40. Association Francaise de Normalisation, Concrete-Ultra-high performance fibre-reinforced concrete-specifications, performance, production and conformity, NFP 18 470 2016, 2016.
41. Association Francaise de Normalisation, National addition to Eurocode 2- Design of concrete structures: specific rules for ultra-high performance fibre-reinforced concrete (UHPFRC), NFP 18 710 2016, 2016.
42. S. AFGC, Bétons fibrés à ultra-hautes performances–Recommandations, AFGC, Fr., 2013.
43. The European Union Per Regulation 305/2011, D. 2004/18/EC Directive 98/34/EC, EN 1992–1-1: Eurocode 2: Design of concrete structures, Eur. Stand., 2004.
44. S.I.A. CT, 2052: Béton fibré ultra-performant (BFUP)-Matériaux, dimensionnement et exécution, Zürich Société Suisse Des Ingénieurs Archit., 2015.
45. SIA 260: Basis of structural design
46. Mezquida-Alcaraz · 2021
47. Direct procedure to characterize the tensile constitutive behavior of strain-softening and strain-hardening UHPFRC10.1016/j.cemconcomp.2020.103854 ↗
48. Validation of a non-linear hinge model for tensile behavior of UHPFRC using a Finite Element Model
49. López · 2017
50. A simplified five-point inverse analysis method to determine the tensile properties of UHPFRC from unnotched four-point bending tests10.1016/j.compositesb.2016.01.026 ↗
51. J. López, P. Serna, J. Navarro-Gregori, H. Coll, Characterisation of the strain-hardening behaviour of UHFPRC using the Third-Point-Bending Test, Proc. 4th HIPERMAT Int. Symp. UHPC. Kassel., 2016.
52. ReSHEALience: Rethinking coastal defence and green Energy Service infrastructures through enHancEd durAbility high-performance fiber reinforced cement based materials., Funding from Eur. Union’s Horiz. H2020 Res. Innov. Program. under Grant Agreem. No 760824, 2018-2021, n.d. 〈https://uhdc.eu〉.
53. Recommendation on the use of crystalline admixtures, nanofibers, and nanocellulose for production of UHDC
54. Guidelines for mix design formulation of functionalized UHDC and adaption to different application technologies
55. Advances in the development of the first UHPFRC Recommendations in Spain: Material classification, design and characterization
56. Numerical validation of a simplified inverse analysis method to characterize the tensile properties in strain-softening UHPFRC10.1088/1757-899X/596/1/012006 ↗
57. Leutbecher · 2008
58. Pfyl · 2003
59. DIANA (Software), User’s Manual -- Release 10.2, TNO DIANA, Netherlands, 2017. 〈https://dianafea.com/manuals/d102/Diana.html〉.
60. E.J. Mezquida-Alcaraz, J. Navarro-Gregori, J.A. López, P. Serna-Ros, Numerical Validation of a Simplified Inverse Analysis Method to Characterise the Tensile Behaviour of UHPFRC, in: FRC2018 Fibre Reinf. Concr. from Des. to Struct. Appl. Jt. ACI-Fib-RILEM Int. Work., 2018.10.1088/1757-899X/596/1/012006 ↗
61. Discussion of “Tension stiffening in lightly reinforced concrete slabs” by R. Ian Gilbert10.1061/(ASCE)0733-9445(2008)134:7(1259) ↗