Techno Press


Steel and Composite Structures   Volume 22, Number 6, December30 2016, pages 1465-1486
DOI: http://dx.doi.org/10.12989/scs.2016.22.6.1465
 
Experimental study on shear behavior of I-girder with concrete-filled tubular flange and corrugated web
Y.B. Shao and Y.M. Wang

 
Abstract     [Full Text]
    Conventional plate I-girders are sensitive to local buckling of the web when they are subjected mainly to shear action because the slenderness of the web in out-of-plane direction is much bigger. The local buckling of the web can also cause the distorsion of the plate flange under compression as a thin-walled plate has very low torsional stiffness due to its open section. A new I-girder consisted of corrugated web, a concrete-filled rectangular tubular flange under compression and a plate flange under tension is presented to improve its resistance to local buckling of the web and distorsion of the flat plate flange under compression. Experimental tests on a conventional plate I-girder and a new presented I-girder are conducted to study the failure process and the failure mechanisms of the two specimens. Strain developments at some critical positions, load-lateral displacement curves, and load-deflection curves of the two specimens have all be measured and analyzed. Based on these results, the failure mechanisms of the two kinds of I-girders are discussed.
 
Key Words
    I-girder; shear behavior; corrugated web; concrete-filled tubular flange; failure mechanism
 
Address
School of Mechatronic Engineering, Southwest Petroleum University, Xindu Road 8#, Xindu District, Chengdu 610500, P.R. China.
 

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