Finite Element Simulations of the CFRP Retrofitted Hollow Square Columns
Hollow Square Columns
DOI:
https://doi.org/10.56748/ejse.2229701Keywords:
Reinforced Concrete Column, Carbon-Fiber-Reinforced polymer CFRP, steel pipe.Abstract
ABSTRACT This article describes the finite element analysis of concrete columns with a hollow square reinforced which restricted with a square Carbon-Fiber-Reinforced polymer (CFRP) tube. In this study, about sixteen square hollow core columns were investigated. These columns were classified into four sets. The set number one was the reference set which involved four unconfined reinforced columns with traditional steel helices and longitudinal steel bars. The columns of the 2nd category have a similar configuration as the set number one except that these columns were restricted outwardly by the CFRP tube. The columns of the set number were restricted outwardly by a CFRP tube and restricted inwardly by a steel tube. Finally, the columns of the 4th category do not have a steel reinforcement where they produced with only an outer CFRP tube and an inner steel tube. These columns were exposed to various loading conditions: concentric, eccentric (22 and 44) mm, and four bendings' points. It was investigated that the CFRP tube confinement faintly improved the columns’ strength. Moreover, the use of a steel tube as inner confinement in the columns with a hollow section led to improve the structural performance and ductility.
Downloads
References
Cromwell JR, Harries KA, Shahrooz BM. Environmental durability of externally bonded FRP materials intended for repair of concrete structures. Constr Build Mater 2011;25:2528–39. https://doi.org/10.1016/j.conbuildmat.2010.11.096. DOI: https://doi.org/10.1016/j.conbuildmat.2010.11.096
440.2R-17: Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures 2017. https://doi.org/10.14359/51700867. DOI: https://doi.org/10.14359/51700867
Esfahani MR, Kianoush MR, Tajari AR. Flexural behaviour of reinforced concrete beams strengthened by CFRP sheets. Eng Struct 2007;29:2428–44. https://doi.org/10.1016/j.engstruct.2006.12.008. DOI: https://doi.org/10.1016/j.engstruct.2006.12.008
Flexural Behaviour of Reinforced Concrete Beam with Hollow Core at Various Depth. Int J Sci Res 2015;5:741–6. https://doi.org/10.21275/v5i5.nov163467. DOI: https://doi.org/10.21275/v5i5.NOV163467
Haddad RH, Al-Rousan RZ, Al-Sedyiri BK. Repair of shear-deficient and sulfate-damaged reinforced concrete beams using FRP composites. Eng Struct 2013;56:228–38. https://doi.org/10.1016/j.engstruct.2013.05.007. DOI: https://doi.org/10.1016/j.engstruct.2013.05.007
Mosallam AS, Banerjee S. Shear enhancement of reinforced concrete beams strengthened with FRP composite laminates. Compos Part B Eng 2007;38:781–93. https://doi.org/10.1016/j.compositesb.2006.10.002. DOI: https://doi.org/10.1016/j.compositesb.2006.10.002
Ozcan O, Binici B, Ozcebe G. Improving seismic performance of deficient reinforced concrete columns using carbon fiber-reinforced polymers. Eng Struct 2008;30:1632–46. https://doi.org/10.1016/j.engstruct.2007.10.013. DOI: https://doi.org/10.1016/j.engstruct.2007.10.013
Pantelides CP, Okahashi Y, Reaveley LD. Seismic Rehabilitation of Reinforced Concrete Frame Interior Beam-Column Joints with FRP Composites. J Compos Constr 2008;12:435–45. https://doi.org/10.1061/(asce)1090-0268(2008)12:4(435). DOI: https://doi.org/10.1061/(ASCE)1090-0268(2008)12:4(435)
Eslami A, Ronagh HR. Effect of FRP wrapping in seismic performance of RC buildings with and without special detailing – A case study. Compos Part B Eng 2013;45:1265–74. https://doi.org/10.1016/j.compositesb.2012.09.031. DOI: https://doi.org/10.1016/j.compositesb.2012.09.031
Mo YL, Nien IC. Seismic Performance of Hollow High-Strength Concrete Bridge Columns. J Bridg Eng 2002;7:338–49. https://doi.org/10.1061/(asce)1084-0702(2002)7:6(338). DOI: https://doi.org/10.1061/(ASCE)1084-0702(2002)7:6(338)
Hsu H-L, Liang L-L. Performance of hollow composite members subjected to cyclic eccentric loading. Earthq Eng Struct Dyn 2003;32:443–61. https://doi.org/10.1002/eqe.235. DOI: https://doi.org/10.1002/eqe.235
Pinto A V, Molina J, Tsionis G. Cyclic tests on large-scale models of existing bridge piers with rectangular hollow cross-section. Earthq Eng Struct Dyn 2003;32:1995–2012. https://doi.org/10.1002/eqe.311. DOI: https://doi.org/10.1002/eqe.311
Lignola GP, Prota A, Manfredi G, Cosenza E. Deformability of reinforced concrete hollow columns confined with CFRP. ACI Struct J 2007;104:629. DOI: https://doi.org/10.14359/18865
Lignola GP, Prota A, Manfredi G, Cosenza E. Experimental Performance of RC Hollow Columns Confined with CFRP. J Compos Constr 2007;11:42–9. https://doi.org/10.1061/(asce)1090-0268(2007)11:1(42). DOI: https://doi.org/10.1061/(ASCE)1090-0268(2007)11:1(42)
Hadi MNS. Comparative study of eccentrically loaded FRP wrapped columns. Compos Struct 2006;74:127–35. https://doi.org/10.1016/j.compstruct.2005.03.013. DOI: https://doi.org/10.1016/j.compstruct.2005.03.013
Hadi MNS. The behaviour of FRP wrapped HSC columns under different eccentric loads. Compos Struct 2007;78:560–6. https://doi.org/10.1016/j.compstruct.2005.11.018. DOI: https://doi.org/10.1016/j.compstruct.2005.11.018
Xiao Y, He W, Choi K. Confined Concrete-Filled Tubular Columns. J Struct Eng 2005;131:488–97. https://doi.org/10.1061/(asce)0733-9445(2005)131:3(488). DOI: https://doi.org/10.1061/(ASCE)0733-9445(2005)131:3(488)
Fam AZ, Rizkalla SH. Concrete-filled FRP tubes for flexural and axial compression members. Proc, ACMBS 2000;3:315–22.
Rousakis TC, Tourtouras IS. RC columns of square section – Passive and active confinement with composite ropes. Compos Part B Eng 2014;58:573–81. https://doi.org/10.1016/j.compositesb.2013.11.011. DOI: https://doi.org/10.1016/j.compositesb.2013.11.011
Zaghi AE, Saiidi MS, Mirmiran A. Shake table response and analysis of a concrete-filled FRP tube bridge column. Compos Struct 2012;94:1564–74. https://doi.org/10.1016/j.compstruct.2011.12.018. DOI: https://doi.org/10.1016/j.compstruct.2011.12.018
Ozbakkaloglu T. Compressive behavior of concrete-filled FRP tube columns: Assessment of critical column parameters. Eng Struct 2013;51:188–99. https://doi.org/10.1016/j.engstruct.2013.01.017. DOI: https://doi.org/10.1016/j.engstruct.2013.01.017
Dawood HM, ElGawady M. Performance-based seismic design of unbonded precast post-tensioned concrete filled GFRP tube piers. Compos Part B Eng 2013;44:357–67. https://doi.org/10.1016/j.compositesb.2012.04.065. DOI: https://doi.org/10.1016/j.compositesb.2012.04.065
Naghibdehi MG, Sharbatdar MK, Mastali M. Repairing reinforced concrete slabs using composite layers. Mater Des 2014;58:136–44. https://doi.org/10.1016/j.matdes.2014.02.015. DOI: https://doi.org/10.1016/j.matdes.2014.02.015
Hu H, Seracino R. Analytical Model for FRP-and-Steel-Confined Circular Concrete Columns in Compression. J Compos Constr 2014;18. https://doi.org/10.1061/(asce)cc.1943-5614.0000394. DOI: https://doi.org/10.1061/(ASCE)CC.1943-5614.0000394
Hu Y. Behaviour and modelling of FRP-confined hollow and concrete-filled steel tubular columns 2011.
Shirmohammadi F, Esmaeily A, Kiaeipour Z. Stress–strain model for circular concrete columns confined by FRP and conventional lateral steel. Eng Struct 2015;84:395–405. https://doi.org/10.1016/j.engstruct.2014.12.005. DOI: https://doi.org/10.1016/j.engstruct.2014.12.005
Wang J-Y, Yang Q-B. Investigation on compressive behaviors of thermoplastic pipe confined concrete. Constr Build Mater 2012;35:578–85. https://doi.org/10.1016/j.conbuildmat.2012.04.017. DOI: https://doi.org/10.1016/j.conbuildmat.2012.04.017
Kurt CE. Concrete filled structural plastic columns. J Struct Div 1978;104. DOI: https://doi.org/10.1061/JSDEAG.0004849
Wang J, Yang Q. Experimental study on mechanical properties of concrete confined with plastic pipe. ACI Mater J 2010;107:132. DOI: https://doi.org/10.14359/51663576
Jiang S-F, Ma S-L, Wu Z-Q. Experimental study and theoretical analysis on slender concrete-filled CFRP–PVC tubular columns. Constr Build Mater 2014;53:475–87. https://doi.org/10.1016/j.conbuildmat.2013.11.089. DOI: https://doi.org/10.1016/j.conbuildmat.2013.11.089
Nowack R, Otto OI, Braun EW. „60 Jahre Erfahrungen mit Rohrleitungen aus weichmacherfreiem Polyvinylchlorid (PVC-U). KRV Nachrichten 1995:1–95.
Gupta PK, Verma VK. Study of concrete-filled unplasticized poly-vinyl chloride tubes in marine environment. Proc Inst Mech Eng Part M J Eng Marit Environ 2014;230:229–40. https://doi.org/10.1177/1475090214560448. DOI: https://doi.org/10.1177/1475090214560448
Lignola GP, Prota A, Manfredi G, Cosenza E. Unified theory for confinement of RC solid and hollow circular columns. Compos Part B Eng 2008;39:1151–60. https://doi.org/10.1016/j.compositesb.2008.03.007. DOI: https://doi.org/10.1016/j.compositesb.2008.03.007
Hadi MNS, Le TD. Behaviour of hollow core square reinforced concrete columns wrapped with CFRP with different fibre orientations. Constr Build Mater 2014;50:62–73. https://doi.org/10.1016/j.conbuildmat.2013.08.080. DOI: https://doi.org/10.1016/j.conbuildmat.2013.08.080
Teng JG, Yu T, Wong YL, Dong SL. Hybrid FRP–concrete–steel tubular columns: Concept and behavior. Constr Build Mater 2007;21:846–54. https://doi.org/10.1016/j.conbuildmat.2006.06.017. DOI: https://doi.org/10.1016/j.conbuildmat.2006.06.017
Kusumawardaningsih Y, Hadi MNS. Comparative behaviour of hollow columns confined with FRP composites. Compos Struct 2010;93:198–205. DOI: https://doi.org/10.1016/j.compstruct.2010.05.020
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2022 M.W. Falah, Zainab Al-Khafaji, R. Yaseen, D.F. Yousif, K.A. Hamza, S.S. Radhi
This work is licensed under a Creative Commons Attribution 4.0 International License.
