A steel-concrete composite connection method for ship building blocks at sea and its feasibility

Abstract

In this study, we introduce a steel-concrete composite connection method for ship building blocks at sea. The core concept of this method is to connect ship blocks by adopting bolting, welding and gluing method at sea outside of docks. By applying this method, the shipyard construction capacity could be increased considerably, and construction cost is supposed to be saved as well. To show the safety of this method, two ship models are employed to investigate the safety of ship hull attached with connective part. We perform the preliminary calculation of the connective part to generally determine the number of steel bars and connective part size, then the structures are analyzed in detail by applying finite element method through ADINA. To show the economic performance of this method, cost comparison is done between steel-concrete composite connection method and welding method, and the possible weight change caused by the attachment of connective part is taken into consideration. Results of these analyses show the possibility of applying this steel-concrete composite connection method into practical ship construction.