Fabrication is the process of preparing components ready for assembly on site. Erection is the process of assembling fabricated components on site, and with careful planning can be completed relatively quickly.
Basic erection planning
In principle, steel erection involves positioning, aligning and securing the components on prepared foundations to form a complete frame.
Dispatch
The steelwork is transferred to the finished stockyard to await bundling and wiring of loose components for loading on to vehicles together with site assembly bolts, ready for dispatch to site.
Erection
Erection of structural steelwork consists of the assembly of steel components into a frame on site, and it can be a significant project cost.
Fabrication and the fabricator's premises
Fabrication consists of cutting pieces of steel and connecting them together. Fabrication yards have facilities for storage, processing and dispatch.
Foundations
Before erection commences the position of the column bases, most usually laid by others, should be verified by the steel contractor.
Inspection and quality control
Inspection and checking occurs at each stage in the fabrication process and after final assembly.
Joints
Column splice joints: Columns in multi-storey buildings cannot be erected as a single length and will need to be spliced.
Lateral stability
It is important to ensure stability at all stages during construction