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An eclectic 4 storey structure

Lowry Centre

Salford Quays

Lowry Centre solves complex design challenges

A unique suspended ceiling and 50dB acoustic performance are some of the things that make this leisure complex extra special.

Main focus

The project was to build a 4 storey prefabricated Metframe structure onto a concrete basement podium, and concrete/steel deck upper floors. Crosswall construction was used as the superstructure, with British Gypsum partitioning materials for all other walls, ceiling grids, bulkheads and fire protection to the framing. 70mm studding was used throughout for non-loadbearing partitioning and integrated with the 100mm steel loadbearing wall module.

A double layer of 15mm Gyproc WallBoard on all walls gave 1 hour fire protection and 50dB on site acoustic performance, when used with 75mm Isowool 1650 quilt in the loadbearing walls. Double layer 12.5 Gyproc FireLine boards were fixed to Gypframe mf ceiling grids and 15mm Glasroc F FireCase formed the frameless encasement to columns and structural beams.

Challenge

The challenge demanded a suspended ceiling profile that had never been attempted before. The ceiling was required to span approximately 9 metres, sloping from one side down to the other. The surface at the top end was to be flat and gradually transform into a pronounced wavy surface at the lower end. The problem was compounded because both adjoining walls were either curved on plan, or at an unusual angle to the proposed ceiling. This complicated aesthetic design also had to provide 60 minutes fire resistance from below.

Solution

The solution was to fit Gypframe 146 I 90 'I' Studs, from a fixed point and then twist along the run of the slope to achieve the correct profile. This framework was then lined with multiple layers of 6mm Glasroc MultiBoard, with 150mm rock mineral wool to complete the system. A full scale mock up was successfully erected at the Building Test Centre to prove the principle to subcontractors and architects. This solution eliminated the need for complicated computer-aided design, facilitating simpler on-site installation and a reduction in the amount of hangers required.

  • Main Contractor: Bovis Construction
  • Specialist contractor: Horbury Building Systems
The Lowry Centre