Basic knowledge

Wood-concrete composite beams

Beam formed by the combination of the materials wood and reinforced concrete. Both materials must be bonded to each other in a shear-resistant manner.

 

The beam generally consists of a wooden beam with a reinforced concrete layer on top. First and foremost, it must withstand loads on bending. Both material components act statically as a single component, with the timber cross-section in the lower area of the beam absorbing the tensile stresses and the reinforced concrete layer above the timber profile bearing the compressive load.

 

The composite is produced using suitable composite materials that are usually approved by the building authorities, such as nails, composite screws, composite anchors or shear connectors. These are driven into the wooden beams or glued in and poured with the concrete.

Source: bauwion