“he frame of the covered marketplace was constructed from historic iron beams and cast columns; the trusses were also constructed from light steel angles and tension wires. An assessment of the frame was required to understand its loading capabilities as new ductwork and lighting was proposed to be supported from this.
The ground conditions were difficult to investigate due to the marketplace being operational during this phase of the works. During the lifetime of the structure, there appeared to have been many alterations to the frame and external façade. This resulted in a variety of ground solutions that had been constructed, particularly around the perimeter of the building.
The new car park also posed design opportunities to provide value, following the ground investigation determining that there were hot spot of contamination across the site.