Behaviour Of Reactive Powder Concrete Hollow Core Columns Strengthened With Carbon Fiber Reinforced Polymer Under Eccentric Loading
DOI:
https://doi.org/10.56748/ejse.223293Abstract
The behavior of hollow-core columns composed of reactive powder concrete (RPC) contained by a circular carbon fiber reinforced polymer (CFRP) tube is investigated numerically in this work. This research used circular hollow core column samples with an outside diameter of 20.6 cm, an interior diameter of 9cm, and a height of 80cm. These examples have been created utilizing 116 MPa reactive powder concrete. Nine groupings of specimens were created. A control set of nine unconfined hollow columns with stirrups strengthened by 12mm longitudinal bars (HCRPC). Groups two through five have been produced up of RPC hollow column specimens with similar reinforcement but were externally confined with CFRP of 0.131, 0.262, 1.2, and 2.4mm thick (These thicknesses are commercially available (0.131 for CFRP one layer sheet, 0.262 for two layers of CFRP sheet; 1.2 for one layer of CFRP plate. And 2.4 for two-layer of CFRP plate) respectively, placed at mid-length of the columns. Sets six to nine, on the other hand, are identical to the previous sets, but the CFRP restriction has been put at both columns' ends. Axial load thru the column center and uniaxial loading with 2.5 and 5 cm eccentricities from the center were applied to all columns. According to the findings, CFRP confinement boosted the strength of HCRPC columns marginally.
Downloads
References
W. K. Tuama, M. M. Kadhum, N. A. Alwash, Z. S. Al-Khafaji, and M. S. Abdulraheem, “RPC Effect of Crude Oil Products on the Mechanical Characteristics of Reactive-Powder and Normal-Strength Concrete,” Period. Polytech. Civ. Eng., 2020. DOI: https://doi.org/10.3311/PPci.15580
G. P. Lignola, A. Prota, G. Manfredi, and E. Cosenza, “Unified theory for confinement of RC solid and hollow circular columns,” Compos. Part B Eng., vol. 39, no. 7–8, pp. 1151–1160, 2008. DOI: https://doi.org/10.1016/j.compositesb.2008.03.007
Z. S. Al-Khafaji, H. K. AL-Naely, and A. E. Al-Najar, “A Review Applying Industrial Waste Materials in Stabilisation of Soft Soil,” Electron. J. Struct. Eng., vol. 18, p. 2, 2018. DOI: https://doi.org/10.56748/ejse.182602
Z. S. Al-Khafaji, Z. Al Masoodi, H. Jafer, A. Dulaimi, and W. Atherton, “The Effect Of Using Fluid Catalytic Cracking Catalyst Residue (FC3R)" As A Cement Replacement In Soft Soil Stabilisation,” Int. J. Civ. Eng. Technol. Vol., vol. 9, pp. 522–533, 2018.
L. K. Sharma and T. N. Singh, “Regression-based models for the prediction of unconfined compressive strength of artificially structured soil,” Eng. Comput., vol. 34, no. 1, pp. 175–186, 2018. DOI: https://doi.org/10.1007/s00366-017-0528-8
A. A. F. Shubbar, H. Alwan, E. Y. Phur, J. McLoughlin, and A. Al-khaykan, “Studying the Structural Behaviour of RC Beams with Circular Openings of Different Sizes and Locations Using FE Method,” Int. J. Civil, Environ. Struct. Constr. Archit. Eng., vol. 11, no. 7, pp. 849–852, 2017.
A. A. Shubbar et al., “Properties of cement mortar incorporated high volume fraction of GGBFS and CKD from 1 day to 550 days,” J. Build. Eng., vol. 30, 2020. DOI: https://doi.org/10.1016/j.jobe.2020.101327
T. Kraav and J. Lellep, “Elastic Stability of Uniform and Hollow Columns,” Procedia Eng., vol. 172, pp. 570–577, 2017. DOI: https://doi.org/10.1016/j.proeng.2017.02.067
W. S. Johnson, J. E. Masters, V. M. Karbhari, and D. A. Eckel, “Effects of Short-Term Environmental Exposure on Axial Strengthening Capacity of Composite Jacketed Concrete,” J. Compos. Technol. Res., vol. 17, no. 2, p. 99, 1995. DOI: https://doi.org/10.1520/CTR10472J
S. Rutledge, M. Kowalsky, R. Seracino, and N. Nau, “Repair of damaged circular reinforced concrete columns by plastic hinge relocation,” Proc. 15 WCEE, Lisbo, 2012.
A. Mirmiran, W. Yuan, and X. Chen, “Design for slenderness in concrete columns internally reinforced with fiber-reinforced polymer bars,” Struct. J., vol. 98, no. 1, pp. 116–125, 2001. DOI: https://doi.org/10.14359/10153
A. N. Abbas, H. K. Al-Naely, H. H. Abdulzahra, and Z. S. Al-Khafaji, “STRUCTURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS HAVING CONSTRUCTION JOINT AT DIFFERENT ELEVATION.”
M. Mohammed, A. Sharafati, N. Al-Ansari, and Z. M. Yaseen, “Shallow Foundation Settlement Quantification: Application of Hybridized Adaptive Neuro-Fuzzy Inference System Model,” Adv. Civ. Eng., vol. 2020, pp. 1–14, 2020. DOI: https://doi.org/10.1155/2020/7381617
B. Keshtegar, M. Bagheri, and Z. M. Yaseen, “Shear strength of steel fiber-unconfined reinforced concrete beam simulation: Application of novel intelligent model,” Compos. Struct., 2019. DOI: https://doi.org/10.1016/j.compstruct.2019.01.004
A. A. H. Alwanas, A. A. Al-Musawi, S. Q. Salih, H. Tao, M. Ali, and Z. M. Yaseen, “Load-carrying capacity and mode failure simulation of beam-column joint connection: Application of self-tuning machine learning model,” Eng. Struct., vol. 194, no. November 2018, pp. 220–229, 2019. DOI: https://doi.org/10.1016/j.engstruct.2019.05.048
A. Bogdanovic, “Strengthening Circular Concrete Columns Using FRP Sheets-Applications,” Compos. Mater. Civ. Eng., vol. 23, p. 735, 2002.
L. Bisby and M. Ranger, “Axial–flexural interaction in circular FRP-confined reinforced concrete columns,” Constr. Build. Mater., vol. 24, no. 9, pp. 1672–1681, 2010. DOI: https://doi.org/10.1016/j.conbuildmat.2010.02.024
F. Micelli, A. Cascardi, and M. A. Aiello, “A Study on FRP-Confined Concrete in Presence of Different Preload Levels,” in Proceedings of the 9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering—CICE, Paris, France, 2018, pp. 17–19.
J. Fitzwilliam and L. A. Bisby, “Slenderness Effects on Circular CFRP Confined Reinforced Concrete Columns,” J. Compos. Constr., vol. 14, no. 3, pp. 280–288, 2010. DOI: https://doi.org/10.1061/(ASCE)CC.1943-5614.0000073
K. Olivova and J. Bilcik, “Strengthening of concrete columns with CFRP,” Slovak J. Civ. Eng., vol. 1, pp. 1–9, 2009.
Z. Y. Wang, D. Y. Wang, and S. T. Smith, “Size effect of square concrete columns confined with CFRP wraps,” in Proceedings of the 3rd Asia-Pacific Conference on FRP in Structures, Hokkaido University, Sapporo, Japan, 2012, pp. 2–4.
M. N. S. Hadi, H. A. Goaiz, and T. Yu, "Experimental investigation of CFRP confined hollow-core Reactive Powder Concrete columns," Constr. Build. Mater., vol. 174, pp. 343–355, 2018. DOI: https://doi.org/10.1016/j.conbuildmat.2018.04.087
A. A. Salman Al-Taai, S. A. Hassan, and L. F. Hussein, “Finite Element Analysis of Corner Strengthening of CFRP-Confined Concrete Column,” IOP Conf. Ser. Mater. Sci. Eng., vol. 454, p. 12088, 2018. DOI: https://doi.org/10.1088/1757-899X/454/1/012088
H. Yin, K. Shirai, and W. Teo, “Finite element modelling to predict the flexural behaviour of ultra-high performance concrete members,” Eng. Struct., vol. 183, pp. 741–755, 2019. DOI: https://doi.org/10.1016/j.engstruct.2019.01.046
M. Abbassi and H. Dabbagh, “Behavior of FRP-confined reactive powder concrete columns under eccentric loading,” J. Rehabil. Civ. Eng., vol. 2, no. 1, pp. 46–64, 2014.
S.-F. Jiang, S.-L. Ma, and Z.-Q. Wu, “Experimental study and theoretical analysis on slender concrete-filled CFRP–PVC tubular columns,” Constr. Build. Mater., vol. 53, pp. 475–487, 2014. DOI: https://doi.org/10.1016/j.conbuildmat.2013.11.089
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2022 Mayadah Falah, Zainab Al-khafaji
This work is licensed under a Creative Commons Attribution 4.0 International License.
