Experimental Research on Bending-Torsion Characteristics of Steel-Concrete Composite Box Beams


Article Preview

Due to the axial curvature and the eccentric vehicle loads, bending-torsion couple effects will be generated in the curved steel-concrete composite box beam bridges. To study the bending-torsion couple characteristics, six steel-concrete composite box model beams are tested under the bending-torsion couple loads, with the initial torsion-bending ratios and shear connection degrees as the design parameters. The ultimate bearing capacity, section strain, and interfacial slip of the steel-concrete composite box beams are measured. The test results show that, the fully connected composite beams mainly express bending or bending-torsion failure modes, but the partially connected composite beams are mainly sliding failure modes. The existence of the torque doesn’t have great influence on the ultimate bearing capacity and bending moment of the composite box beams. Under the bending-torsion couple loads, there are not only the longitudinal slip between the steel girder and concrete slab of the composite box beam, but also the transverse slip perpendicular to the beam axis.



Advanced Materials Research (Volumes 594-597)

Edited by:

Lehua Wang and Gang Xu




Y. L. Zhang et al., "Experimental Research on Bending-Torsion Characteristics of Steel-Concrete Composite Box Beams", Advanced Materials Research, Vols. 594-597, pp. 785-790, 2012

Online since:

November 2012




[1] FAN Jiansheng, Experiments and research on continuous composite beams of steel and concrete, Tsinghua University, Beijing, 2003. (in Chinese).

[2] ZHANG Yan-ling, Theoretical Analysis and Experimental Research on Behavior and Crack Control of Negative Moment Zone in Steel-Concrete Composite Beams, Beijing Jiaotong University, Beijing, 2009 (in Chinese).

[3] Qing Quan Liang, Strength Analysis of Steel–Concrete Composite Beams in Combined Bending and Shear, Journal of Structural Engineering, 131(2005) 1593-1600.

DOI: 10.1061/(asce)0733-9445(2005)131:10(1593)

[4] E.L. Tan, B. Uy, Experimental study on straight composite beams subjected to combined flexure and torsion, Journal of Constructional Steel Research, 65 (2009) 784-793.

DOI: 10.1016/j.jcsr.2008.10.006

[5] Jerome F. Hajjar, Dan Krzmarzick, Luis Pallarés, Measured behavior of a curved composite I-girder bridge, Journal of Constructional Steel Research, 66 (2010) 351-368.

DOI: 10.1016/j.jcsr.2009.10.001

[6] Fan Jiansheng, Nie Jianguo, Zhang Yanling, Experimental study of crack resistance of steel-concrete composite beams, Journal of Civil Engineering, 44 (2011) 1-7.

Fetching data from Crossref.
This may take some time to load.