BWC WB with balcony box BWC 55-4

The system consists of several components:

BWC WB:
The component cast into the wall element at the precast concrete factory. It is installed flush with the outer face of the wall element.

Inner section:
The component connecting the wall structure to the balcony or access balcony element. It is available in several versions. The most common configuration is combined with a cast-in balcony box (BWC 55-4) or supplied with a welded steel angle.

BWC 55-4:
The component cast into the balcony or access balcony element by the precast concrete manufacturer. It provides generous adjustment tolerances in both the vertical and horizontal directions. It is equipped with an adjustment screw for vertical adjustment and horizontal locking of the element. It also features a grout inlet tube for grouting after installation has been completed.

Function and Construction

All components are manufactured from S355 structural steel and are hot-dip galvanised.

Impact Sound Reduction and Thermal Bridge Reduction

Two integrated elastomer units between the inner section and the BWC WB reduce the transmission of impact and structure-borne sound through the balcony support connection. This contributes to good acoustic performance in the completed structure.

A thermal bridge is an area where heat is conducted more readily through the building envelope. Minimising thermal bridges is therefore important in energy-efficient buildings. The integrated elastomer units reduce thermal conductivity through the connection and help limit heat flow.

Applications

The system is primarily designed for use in precast concrete sandwich wall panels. With suitable adaptations, it can also be used with steel columns, horizontal steel beams, HSQ beams or similar structural steel members.

Fire Resistance

When cast into concrete, the load-bearing steel components are protected against elevated temperatures by the surrounding concrete cover.

The solution can be designed for fire resistance classes R30, R60, R90 and R120, depending on the specified concrete cover.

Dokumentasjon og prosjektering

Teknisk dokumentasjon, EPD og BIM-objekter legger til rette for effektiv prosjektering, dokumentasjon og digital samhandling gjennom hele byggeprosjektet.

EPD-en gir tredjepartsverifisert dokumentasjon av produktets miljøpåvirkning gjennom livsløpet og kan benyttes som underlag for prosjektets bærekrafts- og miljømål.

Den europeiske tekniske vurderingen, ETA, dokumenterer produktets ytelse og egnethet for bruk i prefabrikkerte betongkonstruksjoner. CE-merket produksjon i henhold til EN 1090 ivaretar sporbarhet, produksjonskontroll og dokumentert kvalitet i samsvar med gjeldende europeiske krav.