City Quays 3

A striking new building within Belfast’s landmark City Quays waterfront development, City Quays 3 will be the tallest office building in Northern Ireland and has been developed to BREEAM excellent ratings, making it one of the most sustainable new buildings in the UK. Designed by RPP Architects and built by Farrans Construction for developer Belfast Harbour, the 250,000 sq ft building features a unitised curtain wall façade comprising 1879 panes of glass. Central to the design is lightweight structural steel, with steel contractor Walter Watson and engineering consultancy Doran Consulting working with Leviat which provided its Halfen HUC system as the structural connection between the steelwork and the internal concrete core.

As part of a bespoke design service, Leviat supplied 500 Halfen HUC universal connection systems to transfer the high structural loads of the clear-span Westcock Cellular Sections, into the internal concrete core. The majority of the connections were required to have a capacity of 275kN in Shear but some were in excess of 500kN.

The Halfen HUC system is a simple and effective solution for the transfer of high structural loads into concrete. It is offered as a proprietary alternative in the form of a threaded anchorage system cast into the concrete. These connections provide a verifiable method of transferring high loads from structural steel beams into the concrete frame.

With the steel-framed structure set for completion in the spring of 2022, this iconic building will soon be home to 1800 people and its waterfront location on Belfast Harbour will allow workers to take advantage of stunning views.