Re: CPA TCIG TIN031, Managing the design, construction and inspection of tower crane bases, grillages, and ties
The Construction Plant-hire Association (CPA) Tower Crane Interest Group (TCIG) has revised Tower Crane Technical Information Note (TIN) 031, "Managing the design, construction and inspection of tower crane bases, grillages, and ties".
The introduction states:
The stability and safety of a tower crane is reliant on the safe design, construction and installation of temporary works including bases, grillages, and mast ties. Tower cranes are often in use on construction sites in urban areas and, although rare, any collapse of the crane is likely to result in injury to members of the public outside the boundaries of the site as well as personnel working inside the site. Collapse of tower cranes also presents a risk to adjacent railways and roads. This document is intended to promote the safe design and construction of tower crane bases, grillages and ties through an improved understanding and management of temporary works design, construction, and installation process.
The guidance (and more) can be found at https://www.cpa.uk.net/tower-crane-interest-group-tcig-publications/