Cambria Consulting were appointed to undertake full Civil and Structural Engineering services for the scheme, which delivers a new state-of-the-art all-through school, as a part of the Welsh Government’s 21st Century Schools programme.
The scheme accommodates 500 Primary Pupils, and 1,400 Secondary Pupils, split across two new buildings on the existing King Henry VIII Comprehensive School site.
The construction will progress with the existing school remaining active throughout. Following completion of the new buildings, the school will decant into the new blocks, and the existing buildings will be demolished to allow the construction of the proposed MUGA and hockey pitches.
Structurally, both buildings are formed of 3-storey braced steel frames, with composite floor slabs. The secondary school requires the formation of large, open spaces over the dining and sports halls, which are to be created through the inclusion of deep fabricated steel trusses acting as transfer beams to the structure above. The primary school requires the creation of a split level, with a lower ground floor created through the construction of a retaining wall along the northern elevation of the structure.
Due to the numerous level plateaus across the sloping site, several hundred meters of retaining walls are required to retain the external ground levels. The project has also had to allow for the sport pitches remaining within the flood plain, further impacting the achievable site levels. The levels were therefore continually and extensively modelled in AutoCAD Civil 3D to inform and balance the cut and fill volumes.
The SuDS design incorporates swales, cellular storage tanks, rain gardens and porous paving to meet the SAB requirements. The foul drainage design requires the rerouting of the existing Welsh Water Sewer around the proposed Secondary School, necessitating a S185 Sewer Diversion agreement.