DfMA can deliver programme and cost savings and increase the quality of the finished product. To achieve this, components were manufactured offsite based on information provided by Atkins, rather than a subcontractor bridging the gap between the designers and the factory floor. BIM enabled the relevant information to be exported from design software to a generic file type that could then be accessed by the manufacturers. Items produced in this manner included:


External façade panels


Large, structural façade sandwich panels consisting of concrete inner and outer leafs with insulation between them. They were modelled as individual instances with all openings and rebates.


Internal smart walls 80 per cent of the internal walls were designed as ‘smartwalls’ to be manufactured offsite. To facilitate this, each wall and the wall-mounted components were modelled in 3D.


Pre-cast concrete structural elements The building was designed as a precast concrete structure and all façade panels, columns, shear walls and pre-cast floor planks were modelled.


Mechanical and electrical modules Crown House Technologies worked with Atkins to produce a modular wiring and mechanical design.


The use of 3D modelling across the team ensured that architectural, structural and mechanical designs were coordinated, and that clashes and areas for review with the client were identified. Quick 3D perspectives and room elevations including furniture, allowed school staff to refine the design and layouts of the classrooms. The model was also used to provide fly-throughs that the Council could use to provide information to the public and Welsh Government.


BIM also delivered benefits in terms of construction programming - Laing O’Rourke used the models to confirm the optimum build sequence of components - and in terms of construction risk. In addition, the 3D models were used to enhance health and safety briefings and ‘toolbox talks’ for site operatives and installers.


The use of 3D modelling across the team ensured that architectural, structural and mechanical designs were coordinated, and that clashes and areas for review with the client were identified.


To find out more about Atkins and our capabilities contact: Michael Bool


Architect/Internal project manager


Tel +44 (0) 29 20358196 Email michael.bool@atkinsglobal.com Paul Gerrard


BIM manager/Architectural technician


Tel +44 (0)1454 662808 Email paul.gerrard@atkinsglobal.com www.atkinsglobal.com/uk


BIM Collaborating for success | 13


Benefits


The use of BIM to allow the ‘Design for Manufacture and Assembly’ process – allowing seamless design to offsite manufacture with the inherent benefits of time, cost reduction and improvements in manufacturing quality


The use of 3D models, rigorous change control and checking procedures assisted with greater coordination of the multidisciplinary design, leading to fewer errors during the construction phase


Construction stage programming and health and safety ‘toolbox talks’ for site familiarisation


Enhanced client engagement material


Quick 3D perspectives and room elevations allowed school staff to optimise the design and layouts of the classrooms for future lessons


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