Rc Roof Slab Design

Tutorial for analysis and design of slab in staad pro rc designer.

Rc roof slab design.

Forest hill station at eglinton and bathurst road was the crosstown project s first top down station to install the roof slab. The materials to be used are grade c25 concrete and grade 500 reinforcement. This video is a complement of the previous videos. We would like to show you a description here but the site won t allow us.

Waffle slab is a reinforced concrete roof or floor containing square grids with deep sides and it is also called as grid slabs. Lastly the concrete roof slab increases safety for workers underground. A rectangular reinforced concrete slab is simply supported on two masonry walls 250 mm thick and 3 75 m apart. Assume the thickness of slab take 4 cm per metre run of the span.

Preparations started in august and the team poured the concrete roof slab on the night of september 25th and into the morning of the 26th. Steps to be followed in the design of slab assuming suitable bearings not less than 10cm find the span of the slab between the centers of bearings. The slab has to carry a distributed permanent action of 1 0 kn m2 excluding slab self weight and a variable action of 3 0 kn m2. α angle between the shear reinforcement and the plane of slab fywd ef effective design strength of the punching shear reinforcement 250 0 25 d fywd mpa d mean effective depth of the slabs mm v v v u d ed ed rd max 0 β max.

This kind of slab is majorly used at the entrance of hotels malls restaurants for good pictorial view and to install artificial lighting. Influential architects working in the early 1900s such as walter gropius and le corbusier saw ornamentation and traditional styles of architecture as. However including the beams would effectively transfer a load of slabs to the columns which is good for durability of the structure. Find the effective span which is lesser of i distance between centres of bearings and ii clear span and effective depth.

6 4 5 equ6 52 8 5. Although there are certainly many times and places throughout the history of architecture where flat roofs have been used the flat roof has been intrinsically tied with modern architecture since it emerged from the modernist style in the 1920s. In this video a description of the designing process of rc slab will be covered as well as the final draw.