Typically used in:

• Cinemas and theatres;
• Recording studios and radio stations;
• Music practice and rehearsal rooms;
• Mechanical equipment rooms;
• Event spaces;
• Basketball and sports;
• Bowling alleys;
• Medical laboratories;
• Rooftop heliports;
• Fitness & gyms.

Stravifloor Jackup-R is an isolated floating floor system using reinforced steel boxes cast into concrete and jacked up after the concrete has cured, to provide the required void depth.

Once the concrete has cured, the isolated slab is raised off the structure to the required void depth. Stravifloor Jackup-R boxes allow for easy adjustment of the final floor height as well as replacement or inspection of isolators, should the use of the room or load conditions change in the future.

Stravifloor Jackup-R boxes have an extremely high load capacity and, therefore, allow for larger spans and fewer support points than traditional jack-up systems, to provide a cost-effective solution. Stravifloor Jackup-R reduces the risk of acoustic bridging between the floating floor slab and the subfloor.

Features and benefits:

• Can be provided with elastomer bearings giving a natural frequency as low as 6 Hz, or spring mounts giving a natural frequency of 4.5 Hz or 3 Hz.
• Standard box heights are 100 mm, 150 mm and 200 mm (any height from 100 mm upwards can be manufactured to special order or project requirement).
• Stravifloor Jackup-R boxes have a maximum load per box of 38 kN or 63 kN (if reinforced) allowing large spans between boxes.
• Steel components are centrifugal hot-dip galvanized.
• The springs or elastomers within the Stravifloor Jackup-R are easily accessible by unscrewing the box lid which means they can be changed at any time should there be a change to the loadings or performance criteria.
• Reduces the risk of having a bridge between the slab and the structure, isolation is guaranteed because the whole slab is lifted (there is no opportunity for any debris to be left in the cavity and any bridging is broken when the slab is lifted up).
• Can have a shallow or adjustable air gap.
• Can take high loads before the slab is raised (e.g. used as a storage area during construction).
• Eliminates the cost and need for combustible, rot-prone plywood forms.