Twoway spanning solid slabs

EC2(1) permits the use of elastic analysis, with or without redistribution, or plastic analysis for ultimate limit state design.

Elastic analyses are commonly employed for one-way spanning slabs and for two-way spanning slabs without adequate provision to resist torsion at the corners of the slab and prevent the corners from lifting. Plastic analyses are commonly used in other situations.

Tabulated results for moments and shears from both types of analysis are widely available.

Care is necessary in subsequent design to ensure that adequate ductility is present. Where redistribution has been performed, the necessary checks should be carried out.

4.1.2.1 Design example of a simply-supported two-way spanning solid slab

Design a solid slab, spanning in two directions and simply-supported along each edge on brickwork walls as shown in Figure 4.1. The slab is rectangular on plan and measures 5 m by 6 m between the centre of the supports.

In addition to self-weight, the slab carries a characteristic dead load of 0.5 kN/m2 and an imposed load of 5.0 kN/m2.

The slab is in an internal environment with no exposure to the weather or aggressive conditions.

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  • fnan
    How to design two way solid slab by eurocode and examples?
    6 years ago

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