Technical Guidance Note (Level 1, No. 24): Precast concrete planks

This note focuses on the design of one-way-spanning concrete slabs to BS EN 1992-1-1 – Eurocode 2: Design of Concrete Structures – Part 1-1: General Rules for Buildings .

The twisting of elements within structures due to eccentric loading is best avoided. Such actions develop torsion forces - which the elements were not designed to withstand. This note shows structural engineers how to avoid problems that can lead to significant remedial works and/or failures.

There are several variations and conditions the designer must be aware of when determining snow loads onto structures. Based on Eurocode 1: Actions on Structures Part 1-3; General Actions – Snow Loads this note draws on the UK National Annex as it makes reference to projected snow falls that are typical in the UK. Updated October 2016.