Reinforced Concrete Roof Slab Design

6 mm 8 mm 10 mm 12mm and 16mm.

Reinforced concrete roof slab design.

However the complexity of the generalized approach. A solid slab of concrete capping the top of your house. The construction of the original building consisted of a reinforced concrete frame with cast in situ trough floors. For an exposed concrete roof installation it is recommended that a competent concrete mix design consultant or concrete supplier be engaged to assist in the development of the concrete mix to be used.

A concrete slab is a common structural element of modern buildings consisting of a flat horizontal surface made of cast concrete. Minimum reinforcement is 0 12 for hysd bars and 0 15 for mild steel bars. Simply supported one way slab a rectangular reinforced concrete slab is simply supported on two masonry walls 250 mm thick and 3 75 m apart. Sufficiently waterproof concrete can be achieved and is regularly used for water tanks ships pipe and more.

Exact specifications vary but most concrete roofs are several inches thick. Thickness of the slab is decided based on span to depth ratio specified in is456 2000. Contents basics of reinforced concrete slab design1. It is believed that the design dates from c 1960 and was used upto the mid 1990s for which the r c.

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. 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 in many domestic and industrial buildings a thick concrete slab supported on. Roof slabs have an excessive. Effective span of slab2.

Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. Problems have been identified with the reinforced concrete r c roof slabs over the pump houses that serve bulk fuel installations bfi at some establishments. The slab has to carry a distributed permanent action of 1 0 kn m2 excluding slab self weight and a variable action of 3. A concrete roof is exactly what it sounds like.

For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. The maximum diameter of bar used in slab should not exceed 1 8 of the total thickness of slab. The diameter of bar generally used in slabs are. The design of the upper storey extension was a lightweight strut.