ABSTRACT

The floor system generally serves two purposes. First, primarily the floor carries vertical dead and imposed load and transmits these loads through beams to the columns/walls. Second, the floor also has to act as a horizontal diaphragm that ties the building together, stabilizes the walls and columns and transmits horizontal wind load to rigid frames, braced bays or shear walls. The chapter describes types of floor systems and outlines the design process of floor construction. The layout of the floor framing depends on the shape and structural system used for the building. In steel-framed structures, the column arrangement defines the flooring divisions. The composite floor is cast on profiled steel sheets which act as permanent shuttering, supporting the wet concrete, reinforcement and construction loads. After hardening, the concrete and steel sheeting act compositely in carrying the loads. Mesh reinforcement is provided over the whole slab. It is required to resist hogging moments.