sjes-10163

Flexural Strength and Behavior of Flat Steel Plate-Concrete Composite Beams

1, a Kawan Mohammed Hassan 2, a Jalal Ahmed Saeed

a University of Sulaimani, College of Engineering, Civil engineering Department

Abstract

Steel rebar’s are widely used as main flexural reinforcement in reinforced concrete beams. It’s quite attractive to explore the use of another type of material for this purpose. This study aims to investigate the flexural behavior of reinforced concrete beams using steel checker plates instead of traditional steel rebar’s.

In this study fourteen simply supported beams where cast and tested under two-point loads. All the beams had the same steel reinforcement and the dimensions of 2000 mm in length, 250 mm in height and 200mm in width, twelve specimens of these beams were reinforced by horizontal and vertical checker steel plates having total thickness (12mm) with different arrangements and end anchorages. Two of these specimen beams were control beams reinforced with rebar’s. The main variables of the research arrangement, number and anchorage of steel checker plates. Based on the experimental results it found that there is a reduction in crack load and ultimate load of composite steel checker plate beams as compared to reinforced beams. In contrast there was observed increment in ductility of checker steel plate beams compared with beam reinforced with normal rebar’s, while in different arrangements (vertical and horizontal) of steel plates, with same cross sectional area when the number of checker plates increased the load also increased by 14% 12% and 8% also 11%, 23% and 27% for both cracking and ultimate loads respectively. Also the deflection of steel checker plate beams after failure was more than steel bars

Keywords:

Reinforced Concrete Beam; Composite Beams; Checker steel plate; Flexural Strength; Ductility; Deformation.

References

[1] Subedi, N. K., and N. R. Coyle. "Improving the strength of fully composite steel-concrete-steel beam elements by increased surface roughness—an experimental study." Engineering structures 24, no. 10 (2002): 1349-1355.

[2] Mansor, Ahmed Abdullah, Ahlam Sader Mohammed, and Wissam D. Salman. "Effect of longitudinal steel reinforcement ratio on deflection and ductility in reinforced concrete beams." In IOP Conference Series: Materials Science and Engineering, vol. 888, no. 1, p. 012008. IOP Publishing, 2020.

[3] Cao, Xianlei, Chao Cheng, Min Wang, Wen Zhong, Zhengyi Kong, and Zongping Chen. "Experimental study on the flexural behavior of flat steel–concrete composite beam." Canadian Journal of Civil Engineering 48, no. 9 (2021): 1155-1168.

[4] Papavasileiou, Georgios S. "Analytical framework for the substitution of steel-concrete composite columns with equivalent steel sections in structural design." ESR Journal 2, no. 1 (2017).

[5] Barnes RA, Baglin PS, Mays GC, Subedi NK. External Plate systems for the shear strengthening of reinforced concrete beams. Engineering Structures 2001;23(9):1162–76

[6] Thamrin, Rendy, and Ricka Puspita Sari. "Flexural capacity of strengthened reinforced concrete beams with web bonded steel plates." Procedia engineering 171 (2017): 1129-1136.

[7] Ibrahim, Khalid, Ahmed A. Mansor, Bilal J. Noman, Wisam D. Salman, and Ahlam S. Mohammed. "Effect of Replacing the Main Reinforcement by Sheet Steel Plate in Reinforced Concrete Beams." Diyala Journal of Engineering Sciences 14, no. 3 (2021): 141-151.

[8] Hadi, Muhammad NS, Mazin M. Sarhan, and Lip H. Teh. "Behavior of concrete beams reinforced with steel plates." ACI Structural Journal 115, no. 5 (2018): 1307-1315.

[9] Subedi, Nutan Kumar, and Paul Stuart Baglin. "Ultimate load analysis of plate reinforced concrete beams." Engineering structures 23, no. 9 (2001): 1068-1079.

[10] Subedi, Nutan Kumar, and Paul Stuart Baglin. "The serviceability criteria for encased-plate concrete beams." Engineering structures 27, no. 11 (2005): 1633-1641.

[11] Subedi, N. K., and P. S. Baglin. "Plate reinforced concrete beams: experimental work." Engineering Structures 21, no. 3 (1999): 232-254.

[12] Thamrin, R., & Sari, R. P. (2017). Flexural capacity of strengthened reinforced concrete beams with web bonded steel plates. Procedia engineering, 171, 1129-1136.

[13] Mansor, A. A., Ibrahim, A. M., & Hamood, M. J. (2018). Study the Response of Bubbled Wide Reinforced Concrete Beams with Different Shear Steel Plate Spacing. Diyala Journal of Engineering Sciences, 11(2), 1-13.

[14] Zuhdiy, Z. S., & Abbas, A. L. (2021). Comparative Study of Structural Behaviour of Reinforced Concrete Box Girder with Different Numbers of Cells. In IOP Conference Series: Materials Science and Engineering (Vol. 1076, No. 1, p. 012110). IOP Publishing.

[15]https://www.researchgate.net/publication/346503370_flexural_performance_of_beams_reinforced_by_checker_steel_plate_using_roughness_methods