To avoid the need for glass beams and to achieve the desired “clean finish”, Tier proposed utilizing the interior leaf of the double-glazing façade to support the walkway without the need for down stand glass beams. The bridge deck itself was constructed of three sheets of glass, to give the required structural resilience, with a sacrificial layer added to the surface to accommodate long term wear and tear inflicted by theatre goers. Tier worked closely with Cantifix (the specialist glazing supplier) to deliver this elegant solution-meeting all of the Client’s and Architect’s aspirations.
To assess the stair’s response, Tier used time history analysis to predict the likely movements and accelerations of the stair. It was then possible to compare the stair’s predicted response with measurements taken during visits to similarly lively bridge and stair structures. This insured that, prior to committing to any manufacturing, the client and others in the design team, had an understanding of the likely “feel” of the new stair’s likely response.
To ensure the acoustic separation of the theatre, nightclub and residential accommodation, Tier, in conjunction with acoustic specialists, developed bespoke steel and concrete connections incorporating acoustic isolation materials, designed a ‘floating’ slab on resilient pads to the underside of the theatre and separate floor and ceiling structures, over the theatre, to create for the theatre an acoustically isolated “Box in Box”. These challenging structural / acoustic measures allow the different uses of the development to successfully co-exist.