Reinforced Concrete Roof Slab

A solid slab of concrete capping the top of your house.

Reinforced concrete roof slab.

One of the most crucial step in building a flat concrete roof is to figure out the size of the concrete block you will need. Contents basics of reinforced concrete slab design1. Concrete slab design proceduredesign of continuous slab basics of reinforced concrete slab design slabs are generally designed on the assumption that they consists of a number of beams of breadth one meter. The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab.

Insulated reinforced concrete roof decks. Effective span of slab2. Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses. A concrete roof is exactly what it sounds like.

If reinforced concrete were to be reused strong connections would have to be made between roof and walls. Slabs may span in one direction or in two directions and they may be supported on monolithic concrete beams steel beams walls or directly by the structure s columns. The floor system of a structure can take many forms such as in situ solid slabs ribbed slabs or precast units. According to the 1995 aci code all two way reinforced concrete slab systems including edge supported slabs flat slabs and flat plates are to be analyzed and designed according to one unified method such as direct design method and equivalent frame method.

Reinforced concrete slabs are heavier and generate higher seismic forces in an event. Exact specifications vary but most concrete roofs are several inches thick. The steel joists will provide a strong foundation for the flat concrete roofing. This kind of slab is majorly used at the entrance of hotels malls restaurants for good pictorial view and to install artificial lighting.

On the basis of reinforcement provided beam support and the ratio of the spans slabs are generally classified into one way slab and two way slab. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. Steel reinforced slabs typically between 100 and 500 mm thick are most often used to construct floors and ceilings while thinner mud slabs may be used for exterior paving see below. A reinforced concrete slab is a crucial structural element and is used to provide flat surfaces floors and ceilings in buildings.

Waffle slab is a reinforced concrete roof or floor containing square grids with deep sides and it is also called as grid slabs. Step 3 placing the steel joists.