Project Summary:

Horizontal Fire Curtain With No Visible Supports: By incorporating Coopers FireMaster® NVS™ horizontal fire curtain barriers on levels 2 & 4 the voids are able to be closed in fire mode. This reduces the compartment size to within the BCA requirements for Type A construction of not more than two interconnected floors, a floor area of less than 8,000m2 and office volume less than 48,000m3. Project: 4 National Circuit, ACT Developer: Lend Lease Architect: Fender Katsalidis Fire Engineer: Arup Application: Atrium

Technical Issue

The aesthetic design of each building includes a void similar to an atrium which interconnects 6 levels. This allows for introducing more natural light in to the building and increasing the opportunity for people to interact and share ideas. These features of the building add favourably to the 5 Star Green Office Design v3 target achievement for the project. As there are 6 levels interconnected through the void, the large floor area and volume created this means that the building is required to meet the atrium provisions in Part G of the BCA. This is a very costly and restrictive in design.

Greene Fire Solution

By incorporating the FireMaster® NVS™ horizontal fire curtain barriers on levels 2 & 4 the voids are able to be closed in fire mode. This reduces the compartment size to within the BCA requirements for Type A construction of not more than two interconnected floors, a floor area of less than 8,000m2 and office volume less than 48,000m3. This means that the building does not have an atrium in fire mode. Two 9 meter wide by 17 meter draw NVS™ models were installed in the West building. These are the largest horizontal fire curtains installed in the world with No Visible Supports and achieve an FRL of -/120/-!