Steel composite construction

Construction method in which the building materials steel and reinforced concrete are specifically combined with each other in order to achieve a force-fit connection of the materials. The bond is achieved by means of suitable fasteners, mainly in the form of welded-on head bolt anchors and by the special shaping and profiling of steel sheets.

The steel composite construction method primarily has static advantages, the component cross-sections can be reduced or the spans can be increased compared to the pure steel construction or reinforced concrete component. However, the steel composite construction can also increase the fire resistance of the steel structure. Here, the property of concrete as a non-combustible building material is exploited.

In the case of steel composite components, a distinction is made between

• steel composite girders, visible or with concreted chambers: The upper chord of the girder consists of a reinforced concrete slab or a reinforced concrete beam,
• steel composite slab, composed of steel profile sheet and concrete layer of reinforced concrete and
• steel composite column, encased with concrete or with concreted chambers.

Steel composite construction is mainly used in bridge, industrial and commercial construction, but also in the renovation of old buildings.

Source: bauwion