Which type of steel deck is designed to act alone in transferring loads?

The roof deck is specifically designed to act alone in transferring loads without relying on additional structural elements. It typically comprises corrugated steel panels that provide structural support for the building while also serving as the base for roofing materials. The roof deck is engineered to handle the loads imposed by factors such as snow, wind, and live loads, ensuring the integrity of the building’s roof system. Its design allows it to span between supporting beams or walls, efficiently transferring those loads directly to the building’s structural framework.

In contrast, the composite deck integrates concrete with steel to achieve a more efficient structural system; it requires concrete topping to achieve its load-bearing capacity. Cellular decks are designed with openings that allow for running electrical and mechanical systems, and although they do contribute structurally, their primary function is not for load transfer alone. Form decks are used primarily as a temporary formwork during concrete placement and are not intended for load transfer by themselves.