DESIGN OF CONCRETE SLABS IN TIMBER CONCRETE-COMPOSITE STRUCTURES

Abstract

Timber-concrete composite (TCC) slabs consist of timber beams, connected by shear connectors with a concrete slab. Typical dowel type shear connectors may provide only a flexible bond between the timber beams and the concrete slab. Therefore, in single span systems, the concrete slab is predominantly under compressive stresses, but usually a small tensile zone may not be avoided. The paper discusses the optimal arrangement of reinforcement in the concrete slab and the possibilities of verification of the concrete slab. It is found that fibre-reinforced polymer (FRP)-based textile reinforcement or the application of fibre-reinforced concrete is the optimal solution for the concrete slab in TCC structures. In the result, the depth of the concrete slab may be reduced to an optimal and resource-saving value.