Impact of Reinforcement Ratio and Loading Type on the Deformation Capacity of High-Performance Fiber-Reinforced Cementitious Composites Reinforced with Mild Steel
Publication: Journal of Structural Engineering
Volume 142, Issue 10
Abstract
High-performance fiber-reinforced cement-based composites (HPFRCCs) reinforced with mild steel have been proposed for use in structural elements to enhance component strength and ductility, increase damage tolerance, and reduce reinforcement congestion. Recent research has shown that HPFRCCs have a high resistance to splitting cracks, which causes reinforcement strains to concentrate when a dominant tensile crack forms, leading to early reinforcement strain hardening and reinforcement fracture. This paper presents the impact of longitudinal reinforcement ratio, ranging from 0.54 to 2.0%, and the influence of monotonic and cyclic loading histories on the deformation capacity of reinforced HPFRCC flexural members subject to three-point and four-point bending. Experimental results show that load cycling can decrease deformation capacity of flexural members by up to 67% when compared to monotonic deformation capacity. The impact of load cycling on deformation capacity is shown to be strongly affected by changes in longitudinal reinforcement ratio. Unlike traditional reinforced concrete, deformation capacity is shown to increase under monotonic and cyclic loading by increasing the reinforcement ratio of a reinforced HPFRCC flexural element. Using observed failure modes and deformation capacities, combined with prior research results on reinforced HPFRCC components, important considerations are provided for the design of reinforced HPFRCC structural elements to ensure sufficient member deformation capacity.
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Acknowledgments
The authors gratefully acknowledge the support of the John A. Blume Earthquake Engineering Center at Stanford University. Funding for the first author was provided by the National Science Foundation Graduate Research Fellowship Program and the John A. Blume Earthquake Engineering Center. The authors wish to thank Timothy Frank, Graduate Research Assistant, and Rachel Johnson, Undergraduate Research Assistant, from Stanford University for their help with specimen fabrication and testing. The authors also gratefully acknowledge Timothy Frank and Prof. Michael Lepech for their valuable input on this research.
References
ASTM. (2014). “Specification for deformed and plain low-alloy steel bars for concrete reinforcement.” ASTM A706, West Conshohocken, PA.
Bandelt, M., and Billington, S. (2014). “Simulating bond-slip effects in high-performance fiber-reinforced cement based composites under cyclic loads.” Proc., EURO-C 2014 Computational Modelling of Concrete Structures, Vol. 2, CRC Press, Boca Raton, FL, 1059–1066.
Bandelt, M. J., and Billington, S. L. (2016). “Bond behavior of steel reinforcement in high-performance fiber-reinforced cementitious composite flexural members.” Mater. Struct., 49(1), 71–86.
Billington, S., and Yoon, J. (2004). “Cyclic response of unbonded posttensioned precast columns with ductile fiber-reinforced concrete.” J. Bridge Eng., 353–363.
Bischoff, P. (2003). “Tension stiffening and cracking of steel fiber-reinforced concrete.” J. Mater. Civ. Eng., 174–182.
Blunt, J. D., and Ostertag, C. P. (2009). “Deflection hardening and workability of hybrid fiber composites.” ACI Mater. J., 106(3), 265–272.
Brown, R., and Jirsa, J. (1971). “Reinforced concrete beams under load reversals.” ACI J. Proc., 68(5), 380–390.
Canbolat, B. A., Parra-Montesinos, G. J., and Wight, J. K. (2005). “Experimental study on seismic behavior of high-performance fiber-reinforced cement composite coupling beams.” ACI Struct. J., 102(1), 159–166.
Chao, S., Naaman, A., and Parra-Montesinos, G. (2009). “Bond behavior of reinforcing bars in tensile strain-hardening fiber-reinforced cement composites.” ACI Struct. J., 106(6), 897–906.
FEMA. (2007). “Interim testing protocols for determining the seismic performance characteristics of structural and nonstructural components.”, Washington, DC.
Fischer, G., and Li, V. (2002a). “Influence of matrix ductility on tension-stiffening behavior of steel reinforced engineered cementitious composites (ECC).” ACI Struct. J., 99(1), 104–111.
Fischer, G., and Li, V. C. (2002b). “Effect of matrix ductility on deformation behavior of steel reinforced ECC flexural members under reversed cyclic loading conditions.” ACI Struct. J., 99(6), 781–790.
Frank, T., Lepech, M., and Billington, S. (2015). “Effect of deformation history on steel-reinforced hpfrcc flexural member behavior.” Proc., 7th Int. Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC-7), Vol. 1, RILEM Publications S.A.R.L., Paris.
Gencturk, B., and Elnashai, A. S. (2013). “Numerical modeling and analysis of ECC structures.” Mater. Struct., 46(4), 663–682.
Han, T., Feenstra, P., and Billington, S. (2003). “Simulation of highly ductile fiber-reinforced cement-based composite components under cyclic loading.” ACI Struct. J., 100(6), 749–757.
Haselton, C., and Deierlein, G. G. (2007). “Assessing seismic collapse safety of modern reinforced concrete moment frame buildings.”, John A. Blume Earthquake Engineering Center, Stanford, CA.
Hemmati, A., Kheyroddin, A., and Sharbatdar, M. (2015). “Plastic hinge rotation capacity of reinforced HPFRCC beams.” J. Struct. Eng., 04014111.
Hung, C., and El-Tawil, S. (2010). “Hybrid rotating/fixed-crack model for high-performance fiber-reinforced cementitious composites.” ACI Mater. J., 107(6), 568–576.
Kawashima, K., Zafra, R., Sasaki, T., Kajiwara, K., and Nakayama, M. (2011). “Effect of polypropylene fiber reinforced cement composite and steel fiber reinforced concrete for enhancing the seismic performance of bridge columns.” J. Earthquake Eng., 15(8), 1194–1211.
Kesner, K., Billington, S., and Douglas, K. (2003). “Cyclic response of highly ductile fiber-reinforced cement-based composites.” ACI Mater. J., 100(5), 381–390.
Lequesne, R., Parra-Montesinos, G., and Wight, J. (2012). “Seismic behavior and detailing of high-performance fiber-reinforced concrete coupling beams and coupled wall systems.” J. Struct. Eng., 1362–1370.
Li, V., and Leung, C. (1992). “Steady-state and multiple cracking of short random fiber composites.” J. Eng. Mech., 2246–2264.
Li, V. C. (2003). “On engineered cementitious composites (ECC) a review of the material and its applications.” J. Adv. Concr. Technol., 1(3), 215–230.
Lignos, D., Moreno, D., and Billington, S. (2014). “Seismic retrofit of steel moment-resisting frames with high-performance fiber-reinforced concrete infill panels: Large-scale hybrid simulation experiments.” J. Struct. Eng., 04013072.
Maalej, M., and Li, V. C. (1995). “Introduction of strain-hardening engineered cementitious composites in design of reinforced concrete flexural members for improved durability.” ACI Struct. J., 92(2), 167–176.
Moreno, D. M., Trono, W., Jen, G., Ostertag, C., and Billington, S. L. (2014). “Tension stiffening in reinforced high performance fiber reinforced cement-based composites.” Cem. Concr. Compos., 50(2014), 36–46.
Naaman, A., and Reinhardt, H. (2006). “Proposed classification of hpfrc composites based on their tensile response.” Mater. Struct., 39(5), 547–555.
Olsen, E., and Billington, S. (2011). “Cyclic response of precast high-performance fiber-reinforced concrete infill panels.” ACI Struct. J., 108(1), 51–60.
Panagiotou, M., Trono, W., Jen, G., Kumar, P., and Ostertag, C. P. (2014). “Experimental seismic response of hybrid fiber-reinforced concrete bridge columns with novel longitudinal reinforcement detailing.” J. Bridge Eng., 04014090.
Parra-Montesinos, G. (2005). “High-performance fiber-reinforced cement composites: An alternative for seismic design of structures.” ACI Struct. J., 102(5), 668.
Parra-Montesinos, G. J., and Chompreda, P. (2007). “Deformation capacity and shear strength of fiber-reinforced cement composite flexural members subjected to displacement reversals.” J. Struct. Eng., 421–431.
Parra-Montesinos, G. J., Peterfreund, S. W., and Chao, S.-H. (2005). “Highly damage-tolerant beam-column joints through use of high-performance fiber-reinforced cement composites.” ACI Struct. J., 102(3), 487–495.
Shimzu, K., Kanakubo, T., Kanda, T., and Satoru, N. (2004). “Shear behavior of steel reinforced PVA-ECC beams.” Proc., 13th World Conf. on Earthquake Engineering, Canadian Association for Earthquake Engineering, Vancouver, BC, Canada.
Tavallali, H., Lepage, A., Rautenberg, J. M., and Pujol, S. (2014). “Concrete beams reinforced with high-strength steel subjected to displacement reversals.” ACI Struct. J., 111(5), 1037–1048.
Trono, W. (2014). “Earthquake resilient bridge columns utilizing damage resistant hybrid fiber reinforced concrete.” Ph.D. thesis, Univ. of California, Berkeley, CA.
Yuan, F., Pan, J., Xu, Z., and Leung, C. (2013). “A comparison of engineered cementitious composites versus normal concrete in beam-column joints under reversed cyclic loading.” Mater. Struct., 46(1–2), 145–159.
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Published In
Journal of Structural Engineering
Volume 142 • Issue 10 • October 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Nov 13, 2015
Accepted: Mar 2, 2016
Published online: May 9, 2016
Published in print: Oct 1, 2016
Discussion open until: Oct 9, 2016
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