الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Large span structural elements in the construction are the main aim of all designers. Engineering structures such as ships, train stations and high towers are interest in increasing the load capacity to structure weight ratio. For the design such structures, engineers can either use a new structural material or produce a new structural topology. Recently, composite constructions are used as engineers can select any combination of existing materials and arrange them into special structural member.
Sandwich construction is well known to produce an efficient structure for resisting bending loads due to the increase of the moment of inertia with little increase in weight. Many engineers have taken an interest in the idea of sandwich construction due to the advantage of higher bending stiffness and less weight. A Sandwich structure consists of two plates where are separated from each other by a relatively thick and lightweight core. The potential result is special structure section with high stiffness and strength to weight ratio.
The research was conducted to deliver a new type of steel-concrete-steel (SCS) sandwich construction. The bi-directional core (Bi-SCS) was proposed. The aims of the research are to present the possibility to implement this novel sandwich structure and to present the advantages in terms of structural performance. The main objective of the research was to address the advantages of the proposed sandwich slabs using numerical and experimental study. The focus was on the effect of using the different type of shear connectors and different thickness of steel plate.