how to calculate reinforcement pad dimensions

#How to calculate reinforcement pad dimensions free#

The steps in the design of a slab are as follows

Any two adjacent spans carrying (γ GG k + γ QQ k).

Alternate spans carrying (γ GG k + γ QQ k) other spans carrying only γ GG k.

In clause 5.1.3 of Eurocode 2, the following two loading arrangements are recommended for buildings. One-way slabs should be designed to resist the most unfavourable arrangement of loads.

It is the central part of a sensibly rectangular slab supported on four edges with a ratio of longer ( L y) to shorter span ( L x) greater than 2.įig 4: Effective span of a simply supported one-way slab.

#How to calculate reinforcement pad dimensions free#

It possesses two free (unsupported) and sensibly parallel edges.Waffle slab transferring slab load to beams and slabs in two directionĬlause 5.3.1(5) of EN :2004 suggests that a slab subjected dominantly to uniformly distributed loads may be considered as one-way spanning if either:.Ribbed slab transferring slab load to beams and walls in one direction.

Flat slabs carried on columns and edge beams or walls with no interior beams.Two-way spanning slab between the support beams or walls.One-way spanning slab between beams or walls.

Slabs may be simply supported or continuous over one or more supports and are classified according to the method of support as follows: Alternatively, slabs can be supported directly on columns to form flat slabs. Continuous beams may be provided in one direction or two orthogonal directions, to support slabs that may be solid or ribbed in cross-section. The column layout in a monolithic reinforced concrete structure often forms a rectangular grid. For a slab of a given shape and support conditions, the distribution of shear forces, bending, and twisting moments in the slab due to externally applied loads cannot be determined easily. Fig 1: Beam element and slab element Types of Reinforced Concrete SlabsĪ monolithic reinforced concrete slab is essentially a statically indeterminate structure.