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Experimental study on shear performance of partially precast Castellated Steel Reinforced Concrete (CPSRC) beams
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 Title & Authors
Experimental study on shear performance of partially precast Castellated Steel Reinforced Concrete (CPSRC) beams
Yang, Yong; Yu, Yunlong; Guo, Yuxiang; Roeder, Charles W.; Xue, Yicong; Shao, Yongjian;
 Abstract
A new kind of partially precast or prefabricated castellated steel reinforced concrete beam, which is abbreviated here as CPSRC beam, was presented and introduced in this paper. This kind of CPSRC beam is composed of a precast outer-part and a cast-in-place inner-part. The precast outer-part is composed of an encased castellated steel shape, reinforcement bars and high performance concrete. The cast-in-place inner-part is made of common strength concrete, and is casted with the floor slabs simultaneously. In order to investigate the shear performance of the CPSRC beam, experiments of six CPSRC T-beam specimens, together with experiments of one cast-in-place SRC control T-beam specimen were conducted. All the specimens were subjected to sagging bending moment (or positive moment). In the tests, the influence of casting different strength of concrete in the cross section on the shear performance of the PPSRC beam was firstly emphasized, and the effect of the shear span-to-depth ratio on that were also especially taken into account too. During the tests, the shear force-deflection curves were recorded, while the strains of concrete, the steel shapes as well as the reinforcement stirrups at the shear zone of the specimens were also measured, and the crack propagation pattern together with the failure pattern was as well observed in detail. Based on the test results, the shear failure mechanism was clearly revealed, and the effect of the concrete strength and shear span-to-depth ratios were investigated. The shear capacity of such kind of CPSRC was furthermore discussed, and the influences of the holes on the steel shape on the shear performance were particularly analyzed.
 Keywords
steel reinforced concrete structure;precast steel reinforced concrete beam;castellated steel shape;shear performance;shear capacity;experimental study;
 Language
English
 Cited by
 References
1.
Chen, S. and Jia, Y. (2008), "Required and available moment redistribution of continuous steel-concrete composite beams", J. Constr. Steel Res., 64(2), 167-175. crossref(new window)

2.
Chen, S.M., Limazie, T. and Tan, J. (2015), "Flexural behavior of shallow cellar composite floor beams with innovation shear connection", J. Constr. Steel Res., 106, 329-346. crossref(new window)

3.
GB/T 700-2006 (2006), Carbon Structure Steels, China Planning Press, Beijing, China.

4.
GB/T 50081-2002 (2002), Standard for Test Method of Mechanical Aroperties on Ordinary Concrete, China Planning Press, Beijing, China.

5.
Hegger, J., Roggendorf, T. and Kerkeni, N. (2009), "Shear capacity of prestressed hollow core slabs in slim floor constructions", Eng. Struct., 31(2), 551-559. crossref(new window)

6.
Hong, W.K., Kim, J.M., Park, S.C., Kim, S.I., Lee, S.G., Lee, H.C. and Yoon, K.J. (2009), "Composite beam composed of steel and precast concrete; (Modularized Hybrid System, MHS) Part II: Analytical investigation", Struct. Des. Tall Spec., 18(8), 891-905. crossref(new window)

7.
Hong, W.K., Park, S.C., Kim, J.M., Lee, S.G., Kim, S.I., Yoon, K.J. and Lee, H.C. (2010), "Composite beam composed of steel and precast concrete; (Modularized Hybrid System, MHS) Part I: Experimental investigation", Struct. Des. Tall Spec., 19, 275-289.

8.
Johnson, R.P. (2004), Composite Structures of Steel and Concrete: Beams, Slabs, Columns, and Frames for Buildings, Blackwell Publication, USA.

9.
Lawson, R.M., Lim, J., Hicks, S.J. and Simms, W.I. (2006), "Design of composite asymmetric cellular beams and beams with large web openings", J. Constr. Steel Res., 62(6), 614-629. crossref(new window)

10.
Leon, R.T. (2004), "Composite construction in steel and concrete V", Proceedings of the 5th International Conference, Berg-en-Dal, South Africa, July.

11.
Leon, R.T. (2008), "Composite construction in steel cnd Concrete VI", Proceedings of the 2008 Composite Construction in Steel and Concrete Conference, Tabernash, CO, USA, July.

12.
Nie, J., Fan, J. and Cai, S. (2004), "Stiffness and deflection of steel-concrete composite beams under negative bending", J. Struct. Eng., 130(11), 1842-1851. crossref(new window)

13.
Redwood, R. and Demirdjian, S. (1998), "Castellated beam web buckling in shear", J. Struct. Eng., 124(10), 1202-1207. crossref(new window)

14.
Yang, Y., Zhou, X., Xue, J. and Huo, J. (2012), "Experimental study on fatigue behavior of composite girders with steel plate-concrete composite decks", China Civil Engineering Journal., 45(6), 123-113. [In Chinese]