Watkins Steel was contracted by McNab Constructions to supply structural steelwork for a new 11 storey student accommodation building. All steelwork had to match the existing pre-cast panel cut outs and ferrules on site.
Construction reached level 11 and the tilt up walls were already in place when the site was measured using the Faro Focus 3D x 130 Laser Scanner. In parallel to the site measurement, the Trimble RTS773 Total Station was used to accurately locate all the ferrule points in the pre-cast panels. Using the architect’s Rivet model, the in-house drafting team created detailed shop drawings using the Tekla Structures 3D Modelling Software. The Tekla model was then loaded into the 3D point cloud model to check for any clashes between the design drawings and existing ferrule points. At this stage, all steelwork had been processed and fabricated using the Voortman V808 Coping Machine. Based on the identification of several clashes between the drawings and ferrule points, the steel was modified in the workshop before it was delivered to site for installation. Lastly, the Trimble RTS773 Total Station was used to perform a partial mark out to show the anchor bolts location where the steelwork was to be mounted by third party riggers. This process reduced fabrication time by 10% and ensured time was saved on installation with minimal rectification work required.