Grating

A grating is a cantilever, resilient (such as walk-in or drive- ) plate-like structure with many through holes. Gratings are used as covers for platforms, walkways, stairs, landings, steps and other openings. They are usually made of load-bearing, cross bars and edging. They are distinguished by welding press, pressing, push-through and Einsteckrosten and can be made of wood.

The grid consists mostly of rectangular crossing flat profiles of galvanized steel, which are welded or pressed. The higher bearing bars specify the load transfer direction of the grating. The carrying bars are connected by the smaller cross- bars. For stabilization of the grid steel profiles are welded at the edges, which are also galvanized.

When laying grids on their substructures, the direction of the support rods must be observed (from bearing to bearing ). To avoid installation errors, therefore, should square grid dimensions can be avoided if there are no four-sided Auflagerung is available. Be backed up the laid gratings with at least four screw to prevent lifting of the grid in every conceivable position of the traffic load necessarily.

Recently gratings are made ​​from stainless steel, aluminum, glass fiber reinforced plastic and, in exceptional cases from brass. They are used primarily in steel industrial buildings, such as power plants and chemical plants to divide and structure of stories. The steps of the stairs to the vertical circulation of floors are also made of this material.

In the outdoor area, especially in climatically extreme regions, gratings are often used as a structural element in the construction, because rain and snow fall through them. As a result, an elaborate drainage and snow removal can be saved. Because of this property gratings are also used for the transmission of platforms towers.

In the living area gratings are used to cover the basement window wells. They are used at this point, because daylight can pass therethrough into the underlying areas.

In synonymously also grating floor or light grids are called in the industry gratings. The names go back to the light grid company, which produced the first in 1929 on an industrial scale gratings.