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Openings Service penetrations, doors and windows all require openings to be created in Bi-Steel panels. Openings are made by cutting appropriately located and sized holes through the Bi-Steel panel prior to concrete filling. These holes provide an escape route for concrete during the subsequent filling operation. The opening must therefore be lined. Several solutions have been developed:
Attachments During building fit out it is usually necessary to make a number of attachments to Bi-Steel elements, e.g., for attaching lift rail, studding, cladding and doors. A number of standard techniques are available, including welding (a tack weld is equivalent in strength to several nails), self-drill/self-tap screws, Hilti nails and bonding (e.g., for a plasterboard lining). The system used depends on the item to be attached. In addition to attachments, Bi-Steel can also be designed to accommodate other construction items such as precast concrete stairs. | |
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