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http://dx.doi.org/10.7781/kjoss.2012.24.2.233

A Study on Flexural Behavior of Composite PHC pile with CT Structural Steel  

Mha, Ho-Seong (호서대학교 토목공학과)
Won, Jeong-Hun (GS건설 토목사업본부)
Cho, Hyo-Sang (호서대학교 토목공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.24, no.2, 2012 , pp. 233-243 More about this Journal
Abstract
This study verifies the structural capacity of the composite PHC pile (Pretensioned spun high-strength concrete) consisting of a PHC pile and two CT structural steels. Four full-scale specimens are fabricated and the experimental tests were performed to investigate the flexural behaviors of the composite PHC piles. The composite PHC pile can enhance both the structural capacity and functional convenience, since the web of CT structural steel with holes in the web acts as a shear connector (referred to as the perfobond rib), which can connect concrete and steel. All specimens exhibited flexural failure and the ultimate strengths were larger than the anticipated design strength according to the design standard. Thus, the composite PHC pile can be applicable to wall structures with sufficient strength. In addition, it seems that the web of the CT structural steel with holes performs its role as shear connectors.
Keywords
PHC pile; CT structural steel; composite PHC pile; experimental test; perfobond rib;
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