Investigation of the Behavior of Steel Tubular Columns Filled with Reactive Powder Concrete and Comparison with ACI Design Criteria | ||
| Kerbala Journal for Engineering Sciences | ||
| Article 1, Volume 1, Issue 2, December 2021, Pages 93-112 PDF (938.33 K) | ||
| Document Type: Research Article | ||
| Author | ||
| Ahmed Wafi* | ||
| Department of Civil Engineering, University of Karbala, Karbala, Iraq | ||
| Abstract | ||
| This research studies the behavior of double tube steel columns filled with high-strength concrete (HSC) between the gap surrounded by the two pipes and others without filling. The columns are tested by using a concentrated centric load. The concentrated load was applied in the form of cycles by the increased load. Six samples of columns were examined with different variables. The study’s parameters in the experimental work are specific to the steel fiber in the concrete mix and type section and the other parameter to the non-filled tube. In terms of high strength concrete mix, the percentage of fibers used was 0.5% and 1.5% of the total concrete volume. As for the steel tube, a square and circular cross-section was used, as well as column length. Plotting the results obtained through load curves with deflection and the results were compared with samples non filled with concrete. The results showed that increasing the percentage of fibers in high strength concrete increases the maximum bearing of the column, while an empty tube has much less bearing than it is infilled with high strength concrete. Finally, the theoretical analysis of the results was performed with ACI. From the experimental results, the ACI provision gives underestimation about the load carrying capacity of the composite column and overestimation for only steel. | ||
| Keywords | ||
| Steel tubular filled concrete in double Skinned; reactive powder concrete (RPC); Tubes full with concrete; Repeated Loading | ||
| References | ||
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[1] Tao, Z., L.-H. Han, and X.-L.J.J.o.C.s.r. Zhao, Behaviour of concrete-filled double skin (CHS inner and CHS outer) steel tubular stub columns and beam-columns. 2004. 60(8): p. 1129-1158.
[2] Elremaily, A. and Azizinamini, A., “Behavior and strength of circular concrete filled tube columns,” Journal of Constructional Steel Research, 58, 1567–1591, 2002
[3] Tao, Z. and L.-H.J.J.o.C.S.R. Han, Behaviour of concrete-filled double skin rectangular steel tubular beam–columns. 2006. 62(7): p. 631-646.
[4] Z. Tao, T.Y. Song, B. Uy, L.H. Han, Bond behavior in concrete-filled steel tubes, J. Constr. Steel Res. 120 (2016) 81–93
[5] Wang F, Young B, Gardner L. Compressive testing and numerical modelling of concrete-filled double skin CHS with austenitic stainless steel outer tubes. ThinWalled Struct 2019;141:345–59.
[6] Sharif, A. M., et al. (2019). "Structural performance of CFRP-strengthened concretefilled stainless steel tubular short columns." 183: 94-109
[7] Eom, S.-S., et al. (2019). "Flexural behavior of concrete-filled double skin steel tubes with a joint." 155: 260-272.
[8] Ibañez, C., Hernández-Figueirido, D., and Piquer, A. (2018). “Shape effect on axially loaded high strength CFST stub columns.” Journal of Constructional Steel Research, 147, 247–256.
[9] A. Duarte, B. Silva, N. Silvestre, J. de Brito, E. Júlio, and J. Castro, "Tests and Design of Short Steel Tubes Filled with Rubberised Concrete", Engineering Structures, vol. 112, pp. 274-286, 2016.
[10] Richard, P., & Cheyrezy, M. (1995). Composition of reactive powder concretes. Cement and concrete research, 25(7), 1501-1511.1867.
[11] Sadrekarimi, A., “Development of a Light Weight Reactive Powder Concrete”, Journal of Advanced Concrete Technology, Japan Concrete Institute, Vol.2, No.3, October 2004, pp.409-417.
[12] Magureanu C., Sosa I., Negrutiu C., and Heghes B., "Mechanical Properties and Durability of Ultra-High-Performance Concrete", ACI Materials Journal, V. 109, No. 2, March-April 2012, pp.177-184.
[13] Committee A 2006 ACI 234R-06 supersedes ACI 234R-96 (Reapproved 2000) and became effective Guide for the Use of Silica Fume in Concrete 1–63
[14] ACI Committee 544 2013 Guide for Specifying, Proportioning, and Production of FiberReinforced Concrete (ACI 544.3R-08) ACI Man. Concr. Pract
[15] ASTM A370, ‘‘Standard Test Method and Definitions for Mechanical Testing of Steel Products” American Society for Testing and Materials, 1977.
[16] AL-Amery S. M., “Influence of Using Ultra Fine Steel Fiber on the Behavior of Reactive Powder Concrete Slabs”, MSc. Thesis, University of Babylon, Iraq 2013.
[17] Kindeel, Z. “Ultimate Strength Capacity and the Bond-Slip Behavior of Composite Ultra- High Performance Concrete-Steel Beams” Ph.D. Thesis, University Of Babylon-Iraq, 2015.
[18] Wille, K., Naaman, A.E., Parr-Montesinos, G.J., 2011. "Ultra-High Performance Concrete with Compressive Strength Exceeding 150MPa (22ksi): A Simpler Way", ACI Materials Journal, Vol.108, No.1, January February 2011, pp.46-54. | ||
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