Thursday 19 November 2009
The steel decking is being laid onto the primary steel structure to form the decking for the roofs of the new sixth form block. The decking comes in large profiled sheets and on windy days it is difficult to handle these sheets safely. Let’s hope that we do not have too many days of strong winds.
The steel structure for the science extension is now complete and being in-filled with blockwork and clad with brickwork to match the existing building. The bricklayers are working hard to erect as much masonry as possible before the cold weather sets in. If the temperature gets too cold the cement: sand mortar will not mix properly and will not be pliable enough to use.
While the steel structure is being in-filled, temporary bracing is used to ensure the integrity of the frame until the roof deck can be laid. You can see the bracing bars spanning between the lattice beams in the picture. The bracing is fitted according to the structural engineer’s design and is only removed when other elements of the structure are in place to carry the loads.
The recent wet weather has made it difficult for the fire-proof paint to be applied to the steel structure. The lightweight steel frame will be erected as soon as this is applied, and will form the studwork for the internal partitions.
What’s happening next?
Over the next few weeks you will see:
• Completion of masonry to science
• Tapered Insulation to roofs
• External wall cladding
• Fire protection of steelwork