Folded Concrete Roof Slab

Reinforcement detailing of a slab is done based on its support conditions.

Folded concrete roof slab.

The continuous slab is folded at at least one beam defining path across its planar supporting surface and preferably includes a right angle grid of such folds with downward peripheral folds at the. Folded plate design structurally these roofs are folded plates so they require an engineer ing design. Circular slab non planer roof slab. The slab which provided above the door for storage purpose is called low roof slab.

Roof concrete right retained the concrete for the final layer. Placing concrete in one of two roof forms consisting of a series of wood trusses sheathed with 3 4 inch marine plywood. 4 inch into the roof slab after concreting these channels retain the insulation and serve as attachment. Planar roof slab the planar roof slabs are further classified as follows.

This type of slab is closed at all ends and open at one end. This slab lies below the actual slab and above the door sill level. In order to re d u c e both labor and materials for form ing two forms we r e constructed on the ground utilizing a series of wood trusses sheathed over with 3 4 inch marine plywood. Flat slab supported directly on columns without beams.

The building was designed in the shape of an octagon incorporating 8 separate gables each engineered as a folded slab. But bermudez says the. Due to the difficulty of holding these inserts in place during casting one half inch steel plates threaded to receive three fourths of an inch bolts from the lifting apparatus were substituted for the remaining sections. Exact specifications vary but most concrete roofs are several inches thick.

These types of concrete slabs are used in houses. Slab supported on two sides and bending takes place predominantly in one direction only is called one way slab. Waffle slab grid slab 5. Slabs are classified as.

A concrete roof is exactly what it sounds like. Pyramidal roof slab 4. Samuely discusses design principles for folded slab roofs stair landings and galleries with special attention to shear forces and to stresses produced by differential deformation in the slabs. Slab supported directly by columns are called flat slab.

Two way slab 3. Structures in folded slab england and america illustrate use of folded slabs in a wide variety of shapes. Each 4 inch thick section covered 400 square feet and weighed 11 tons. As a folded slab.

Domes concrete shell roofs 2. This allowe d the casting of four sections of the roof on each form using the lift slab p r inciple of stacking one slab on top of the other. Beam action of the fold or quoin is explained. Folded slab roofs concrete construction.

The first three sections which were cast employed concrete inserts. A solid slab of concrete capping the top of your house. Slab may be supported on walls or beams or columns. On the other hand when.