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Granular working platforms (Oct 2015)

Design of granular working platforms for construction plant: A guide to good practice

Temporary granular platforms for construction plant (including haul roads and general hard standings) are a necessary feature of almost all construction sites but the need to ensure that they are adequate for the intended use is often overlooked. Furthermore, the design is frequently only derived from previous experience. This has, on occasions, resulted in significant incidents of over-turning plant that result in, at best, cost and delay or, at worst, injury and/or death.

While current methods for the technical design of granular working platforms have proved generally reliable, it is recognised that there is a lack of consistency on how and when they are applied, resulting in varying degrees of economy (and possibly un-economic design in certain instances).  In addition, the introduction of the ‘Eurocodes’ (although not strictly applicable) has brought about an increased expectation that temporary structures should be designed in line with current national standards.

It is not intended to replace current guidance but to supplement current guidance and provide an overall approach that addresses the above mentioned issues.  This guidance is, therefore, aimed at:

•          Providing recommendations for the overall design of working platforms;
•          Improving the application of current structural design methods;
•          Suggesting a suitable method for the application of Eurocodes;
•          Considering ways of achieving greater economy while maintaining a suitable level of reliability with regard to the particular risks under consideration;
•          Providing an introduction to related health and safety and sustainability issues.

The guidance is intended primarily for temporary works designers, in particular less experienced engineers. It is also, however, intended to act as an aid others involved in the procurement and use of granular working platforms.

The ‘Draft for Discussion’ can be obtained via the Related Link, right.  The consultation period closes on 30th December 2015.  NOTE: If you wish to submit comments please contact the TWf Secretary, at secretary@twforum.org.uk, for a copy of the Comments Template.