Ultimate strength behaviour of steel–concrete–steel sandwich plate under concentrated loads

Abstract This paper studied ultimate strength behaviour of Steel–Concrete–Steel (SCS) sandwich plate under concentrated loads. Eight square SCS sandwich plates were simply supported and tested to failure under concentrated loads. The investigated parameters included strength of the core material, thickness of the steel skin plate, content of the steel fibre in the core, size of the loading area, and different type of the fibre. Test results showed that SCS sandwich plate exhibited two peak resistances that benefited from the tension membrane action of the top steel skin, which behaved differently from reinforced concrete structures. The influences of different parameters on ultimate strength behaviours of SCS sandwich plate have been analysed and discussed. On the basis of the experimental studies, analysis and discussions, theoretical models were developed to predict the ultimate resistances of the SCS sandwich plate under concentrated loads. The developed models considered the punching shear resistance of the top steel skin plate, modified the resistance contributed by the headed studs, adopting proper critical perimeter for the punching cone, and developing formulae for the second peak resistance. The analytical models were observed predicting well the ultimate resistances of the SCS sandwich plates.

[1]  J. Y. Richard Liew,et al.  Steel–Concrete–Steel sandwich slabs with lightweight core — Static performance , 2011 .

[2]  Jack P. Moehle,et al.  "BUILDING CODE REQUIREMENTS FOR STRUCTURAL CONCRETE (ACI 318-11) AND COMMENTARY" , 2011 .

[3]  Xudong Qian,et al.  Steel–concrete–steel sandwich system in Arctic offshore structure: Materials, experiments, and design , 2016 .

[4]  J. Y. Richard Liew,et al.  Ultimate strength behavior of steel-concrete-steel sandwich beams with ultra-lightweight cement composite, Part 1: Experimental and analytical study , 2014 .

[5]  Min-hong Zhang,et al.  Flexural performance of fiber-reinforced ultra lightweight cement composites with low fiber content , 2013 .

[6]  H. D. Wright,et al.  The experimental behaviour of double skin composite elements , 1991 .

[7]  Min-hong Zhang,et al.  Water and chloride ion penetration resistance of high-strength ultra lightweight cement composite , 2012 .

[8]  T. M. Roberts,et al.  Testing and analysis of steel-concrete-steel sandwich beams , 1996 .

[9]  J. Y. Richard Liew,et al.  Tensile resistance of J-hook connectors used in Steel-Concrete-Steel sandwich structure , 2014 .

[10]  J. Liew,et al.  Behavior of steel–concrete–steel sandwich slabs subject to impact load , 2014 .

[11]  A W Beeby,et al.  CONCISE EUROCODE FOR THE DESIGN OF CONCRETE BUILDINGS. BASED ON BSI PUBLICATION DD ENV 1992-1-1: 1992. EUROCODE 2: DESIGN OF CONCRETE STRUCTURES. PART 1: GENERAL RULES AND RULES FOR BUILDINGS , 1993 .

[12]  Andrew Palmer,et al.  Arctic Offshore Engineering , 2012 .

[13]  Xudong Qian,et al.  Ultimate strength behavior of curved steel–concrete–steel sandwich composite beams , 2015 .

[14]  T. Oduyemi,et al.  An experimental investigation into the behaviour of double-skin sandwich beams , 1989 .

[15]  Min-hong Zhang,et al.  Experimental and analytical study on ultimate strength behavior of steel–concrete–steel sandwich composite beam structures , 2015 .

[16]  James G. MacGregor,et al.  Tests on Arch-shaped Ice-Resisting Walls for Offshore Structures , 1993 .

[17]  N. E. Shanmugam,et al.  Finite element modelling of double skin composite slabs , 2002 .