This is a section through our lovely basic portal frame. It shows a concrete and metal cladded exterior with a steel UB column. The column and the concrete panel sit on a infil slab and a mass concrete block. The column is bolted down using a hold-down bolt which is a threaded rod cast into the concrete. The 'z' section girts provide a connection for the lasaght cladding which are to be at least 10 mm through the use of welded cleats. The haunching which is a cut steel beam, provides extra support for the knee joint. The roofing is supported by similar 'z' sections from the girts but this time they are called purlins. Safety mesh and sarking is also provided. The internal box gutter would have a down pipe running through the interior also.
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