Key interfaces with other non-LSF elements are relevant to both load-bearing and non load-bearing systems. Interfaces need to be determined early in the design process to ensure requirements are captured and costed for.
Interfaces with load-bearing structures
Foundations
Connections to different types of foundation require different approaches but typical suitable foundations are:
• Slab
• Strip footings
• Pads
• Beam and block floor
• Concrete plank floor
Balconies
Balconies can be Juliette, inset, cantilevered or propped and whilst they can be attached to the LSF structure the preference is for posted balconies. When detailing balconies, the following points should be considered:
• When connecting balconies to LSF structures careful detailing is required to prevent cold bridging – this can be achieved through the use of proprietary connection brackets.
• Inset balconies create issues with regards to wrapping any external posts required at the corner of the balcony, to maintain warm frame detailing.
• Cantilever balconies create cold bridging issues at floor level. Thermal break connectors can be introduced to address this.
Brise soliel
Brise soliel systems can be connected but the location and connection points must be plotted at the commencement of the design process.
General access during and post construction:
Connections can be made to the LSF structure for the purpose of access during the construction phase through to end use. These connections include:
• Scaffold connections
• Edge protection system connections
• Access towers
• Mast climbers
• Man-safe systems
Locations of connections and loads imposed are to be determined during the structural design phase.
Interfaces in infill and oversail systems
When designing these types of LSF components it is important that the interface with the host structure is considered, particularly in setting out. Setting out
should ensure that the minimum bearing along the length of the support under the steel sections is in line with system parameters.
In addition, the requirement for allowing for deflection at the head should be considered, with specific requirements needing to be addressed at ribbon windows.
It is important to ensure the system considers and works to/maintains the tolerances required.
