Efficiency of Steel Fiber on Carrying Capacity of Short Square Columns
Abstract
An experimental investigation is carried out to find the beneficial effect of adding steel fiber to reinforced concrete square columns. Hooked end steel fiber type is used in this investigation. The aspect ratio is 60 and the percentages of the steel fiber that added to the concrete are 0.5%, 1.0% and 1.5%. The experimental work consists of fabricated twenty columns to observe the effect of steel fibers on the axial and bending moment capacity. The specimens are classified into five groups according to the applied load on it. Each of these groups is consisted of four columns having different steel fiber ratios (0, 0.5, 1.0 and 1.5) %. The columns are tested under concentric, eccentric with variable eccentricities and two-point loading. All tested columns in a one group having the same dimensions, same interior reinforcement and were tested under one applying–load and they have a square cross-section with a dimension of (100 × 100) mm. Specimens with steel fiber results are compared with the control specimen of their own (columns mad of plain concrete). The results showed that increasing steel fiber ratio is caused an increasing in the first cracking load and an increase in the ultimate load for all tested columns.
Keywords
References
M. N. S. Hadi “Reinforcing Concrete Columns with Steel Fibers.” Asian Journal of Civil Engineering, 10(1) (2009): 79-95.
H. Aoude, W. D. Cook and D. Mitchell “Behavior of Columns Constructed with Fibers and Self Consolidating Concrete.” ACI Structural Journal, 106(3) (2009): 349-357.
Y. M. Al-Shamma, R. J. Aziz, Z. A. Al-Bayati “Effect of Steel Fibers Addition on the Behavior of High Strength Concrete Circular Short Columns” Journal of Engineering. 17(4) (2011): 846-859.
W. I. Khalil, I. N. Gorgis and Z. R. Mahdi “Behavior of High Performance Fiber Reinforced Concrete Columns.” ARPN Journal of Engineering and Applied Sciences, 7(11) (November 2012): 1455-1467.
M. M. Islam, , R. Akhter, K. S. Islam, R. Tabassum, M. A. Chowdhury, R. Reza and A. Siddique “Finite Element Modeling, Analysis and Validation of Axial Capacity of RC Columns Made of Steel Fiber Reinforced Concrete (SFRC)” 2nd International Conference on Advances in Civil Engineering 26 –28 Dec, 2014 CUET, Chittagong, Bangladesh. (2014): 587-593.
M. M. Hosinieh, H. Aoude, W. D. Cook and D. Mitchell “Behavior of Ultra-High Performance Fiber Reinforced Concrete Columns under Pure Axial Loading.” Engineering Structures, 99(15) (September 2015): 388-401. doi: 10.1016/j.engstruct.2015.05.009.
F. Hameed, B. A. Ipe “Seismic Performance of Hybrid Fiber Reinforced Concrete Column.” International Journal of Innovative Research in Technology (IJIRT), 3 (4) (2016): 85-92.
C-C. Hung; F-Y. Hu “Behavior of High-Strength Concrete Slender Columns Strengthened with Steel Fibers under Concentric Axial Loading.” Construction and Building Materials, 175, (2018): 422-433. DOI: 10.1016/j.conbuildmat.2018.04.201
H. Aoude, “Structural Behavior of Steel Fiber Reinforced Concrete Members.”, PhD thesis, McGill University Montreal, Quebec, Canada December (2007).
M. N. S. Hadi “Behavior of Eccentric Loading of FRP Confined Fiber Steel Reinforced Concrete Columns. Construction and Building.” Materials 23, (2009): 1102-1108.
S. Tokgoz “Effects of Steel Fiber Addition on the Behavior of Biaxially Loaded High Strength Concrete Columns.” Mater. Struct., 42(8) (October 2009): 1125–1138. Doi: 10.1617/s11527-008-9448-9.
S. Mazhari “Load Deformation Characteristics of Normal and Fiber Reinforced Concrete Columns.” MSc. thesis, Eastern Mediterranean University, (September 2013) Gazimağusa, North Cyprus.
W.-C.Liao and L-W.Tseng “Application of Highly Flowable Strain Hardening Fiber Reinforced Concrete (HF-SHFRC) in New RC Columns.” Proceedings of the Second International Conference on Performance-based and Life-cycle Structural Engineering (PLSE 2015), Brisbane, QLD, Australia, 1602-1608. DOI: 10.14264/uql.2016.777
M. Zaker and M. Hashmath “Experimental Investigation on Fibers in Columns Subjected to Combined Axial Load and Uniaxial Bending.” Global Journal of Engineering Science and Researches, 3(2) (February 2016): 1-8.
E. K. Z. Balanji, M. N. Sheikh and M. N. S. Hadi “Performance of high strength concrete columns reinforced with hybrid steel fiber under different loading conditions.” In R. Komurlu, A. Gurgun, A. Singh & S. Yazdani (Eds.), Interaction Between Theory and Practice in Civil Engineering and Construction: Proceedings of the First European and Mediterranean Structural Engineering and Construction Conference, (2016): 35-40. United States: ISEC Press.
S. Xu, C. Wu, Z. Liu, and J. Li “Numerical study of ultra-high-performance steel fibre–reinforced concrete columns under monotonic push loading.” Advances in Structural Engineering, 21(8), (Dec. 2017): 1234–1248.
Iraqi Standard Specification No 45, “Natural Sources for Gravel that is Used in Concrete and Construction”, Baghdad, 1984.
ASTM A820 / A820M-16, Standard Specification for Steel Fibers for Fiber-Reinforced Concrete, ASTM International, West Conshohocken, PA, (2016), www.astm.org. DOI: 10.1520/A0820_A0820M-16
British Standards Institution (BSI), BS 8500-1:2015+A1:2016, Concrete - Complementary British Standard to BS EN 206 – Part 1: Method of specifying and guidance for the specifier. (2015a), London: BSI
British Standards Institution (BSI), BS 8500-2:2015, Concrete – Complementary British Standard to BS EN 206 - Part 2: Specification for constituent materials and concrete. (2015b), London: BSI.
DOI: 10.28991/cej-0309197
Refbacks
- There are currently no refbacks.
Copyright (c) 2018 Haider Abdulridha Alkufi, Mohannad Husain Al-Sherrawi
This work is licensed under a Creative Commons Attribution 4.0 International License.