Acoustic Floating Floors
Hollywood Bowl, Intu Derby
Client: Hollywood Bowl
Main Contractor: Abbott Building
Acoustic Consultant: Sharps Redmore
The inclusion of a new bowling alley operated by Hollywood Bowl at the new Derby intu Shopping Centre required careful acoustic planning.
Formed within the existing level 3 car park above the second level retail units, high levels of impact and airborne noise from both the pinsetters, and the dropping and rolling of balls on the lanes and run-up area, had to be mitigated.
A target of NR35 in the retail units below was set. To achieve this target the steelwork frame supporting the pinsetters was supported on a number of Sylodyn NF isolation pads at 37.5mm thickness, providing a natural frequency < 8Hz, complete with TVS Resilient Washers to isolate the anchor bolts.
Similarly a RESi FFS concrete floating floor of 100mm depth, with a minimum void of 100mm, supported on Sylomer SR850 isolators with a natural frequency of 8.5Hz, provided sufficient isolation to support the bowling lane and run-up areas.
TVS worked closely with the main contractor to ensure that they were able to integrate the solution into the existing structure, including a bespoke design of the RESi FFS System supports to cope with a sloping subfloor.
TVS RESi Floating Floor System
Sylodyn NF Isolation Pads
TVS Resilient Washers