Behaviour of Steel-Concrete-Steel Sandwich Plates Under Different Ice-Contact Pressure

Abstract

Steel-concrete-steel (SCS) sandwich plate has been developed as the ice-resisting walls in Arctic offshore constructions. This paper investigates the ultimate strength behaviour of SCS sandwich plates under different surface loading area by numerical analysis method. This paper adopted the finite element model that was developed and extensively validated by the test results. Through the 35-case study, the ultimate strength behaviour of the SCS sandwich plate under different surface loading area was investigated. The general load-deflection behaviour of the SCS sandwich plates under different loading area were analysed and summarized. Different failure modes of the SCS sandwich plate under different surface loading area were reported and discussed. The load-transferring mechanism of the SCS sandwich plate under different surface loading area were analysed. Finally, considering the applications of these SCS sandwich plate as the ice-resisting wall in the Arctic offshore constructions, these FE predicted ultimate resistances of the SCS sandwich plates under different surface loading area were compared with the corresponding ice-contact pressure predicted by the design codes. These comparisons confirmed the applicability of developed SCS sandwich plate as the ice-resisting wall in Arctic offshore constructions.

Numerical and Theoretical Studies on Double Steel Plate Composite Walls Under Compression at Low Temperatures

“…The reliability of the FEM was validated through the test results. Yan et al [18] developed FEM that simplified the circle headed stud into square to predict the load-transferring mechanism and failure modes of the SCS sandwich plate. Qi et al [19] investigated the tensile force and bending moment demands on headed studs in the design of DSCWs by FE method.…”