Publication

Laboratory tests of composite wood-concrete beams

Julius Natterer
2008
Journal Articles

Abstract

Exploratory research related to the effectiveness of layered composite solid wood-concrete floor systems is described. Rectangular beams comprised of a concrete layer atop a solid dimension lumber layer were load tested. Interlayer force transfer is accomplished by bearing in a notched shear key. A vertical anchor is utilized to restore tightness of the notch after the concrete cures. Test results indicated the structural merit of the concept based on the degree of partial composite action achieved. (C) 2007 Elsevier Ltd. All rights reserved.

Official source

https://infoscience.epfl.ch/entities/publication/a113ce36-5ea9-48f7-98f7-cee0f9530295

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Julius Natterer
2008
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/a113ce36-5ea9-48f7-98f7-cee0f9530295

About this result

Related concepts (9)

Concrete

Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. When aggregate is mixed with dry Portland cement and water, the mixture forms a fluid slurry that is easily poured and molded into shape.

Precast concrete

Precast concrete is a construction product produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment, transported to the construction site and maneuvered into place; examples include precast beams, and wall panels for tilt up construction. In contrast, cast-in-place concrete is poured into site-specific forms and cured on site. Recently lightweight expanded polystyrene foam is being used as the cores of precast wall panels, saving weight and increasing thermal insulation.

Reinforced concrete

Reinforced concrete, also called ferroconcrete, is a composite material in which concrete's relatively low tensile strength and ductility are compensated for by the inclusion of reinforcement having higher tensile strength or ductility. The reinforcement is usually, though not necessarily, steel bars (rebar) and is usually embedded passively in the concrete before the concrete sets. However, post-tensioning is also employed as a technique to reinforce the concrete. In terms of volume used annually, it is one of the most common engineering materials.

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