Figure.3 Detachable pre-cast panel connection to slab Secondly, the adoption of a pre-cast faรงade allows for quick and accurate construction of the faรงade and avoids duplication of the faรงade support structure. Finally we have had recent experience of this type of structure in an office development in London where the entire faรงade was pre-cast in a similar way as proposed for Antwerp Building Z. This building, 40 Grosvenor Place, with HOK Architects, proved to be one of the most cost effective commercial buildings in London at that time due to the use of pre-cast concrete. We have also had experience of this form of construction on a residential building in London. The joints between the panels have to be carefully considered. Some suggestions are included within this document. We have analysed the faรงade structure and both maximum principle stress and deflection under imposed (varying load) are well within allowable limits. The design also takes into account the dynamic design criteria of offices or teaching areas with computer screens.
Internal floors The floor slabs are simple exposed reinforced concrete flat slabs. Practical alternatives to this include waffle and ribbed slabs. The
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