Design life
for
Building information modelling is set to revolutionise the way buildings are designed, managed and built. But can it offer anything else? Rob Manning investigates
buildings are designed, information managed, relationships between key participants, and the way buildings are built. Some argue that BIM offers competitive advantages to the supply chain. But is that all BIM offers? Why do we need all the information in a
M
Why do we need all the information in a building model – is it just to keep software providers and building modellers happy, and to produce more data?
building model – is it just to keep software providers and building modellers happy, and to produce lots more data? Or is it to deliver information about the building or built asset that will help with management, operation, maintenance and refurbishment during the operating life of the building or asset? And could that information and the experience of running the building provide feedback on the design and construction that could lead to improved design and ways of working in the future? At present, information is generated and recreated several times on a typical construction project. The project team may develop their brief and concepts, and then go on to deliver the defi nition that is needed to put the project out to tender. But once a construction team is in place, they often want different information, or want greater accuracy or clarity on certain aspects. There are concerns about risk and liability associated with accepting the design team’s detailed work, and so the successful contractor recreates a good chunk of design before they go to site. They then create the model they need to deliver the project. When
commissioning is carried out, more information on the actual set-up is generated, and ‘as-built’ drawings and information are created, too. After this, very often they pack up the model and all the
14 CIBSE Journal November 2012
www.cibsejournal.com
uch is being written about building information modelling (BIM) at present – about how it will change the way
information and fi le it away in case it is needed, for example if there is litigation. What they might not do is hand over the information to allow the facilities manager to export as built data into their software, or to save them resurveying the construction to populate their asset register. This can lead to a number of things, including: ■ A lack of communication among stakeholders ■ Silos of information ■ The problem that inherent design process models that exist today do not reward sharing of information
■ Limiting information to avoid risk ■ Confl icting goals among stakeholders ■ Diffi culty in coordinating paper documentation ■ Varied interpretation of BIM among all stakeholders, causing confusion within the market sectors and driving inconsistent expectations
■ The problem that existing terms do not facilitate collaboration
■ Lack of trust from the supply chain ■ Diffi culty in delivering low energy and low carbon solutions Today’s client is thinking about how to reduce
the time, cost and culture shock of introducing users and operators to a refurbished or new facility. Future procurement documents will defi ne the data and information required to enable effective operation and use of a constructed asset. New plans of work will identify the information and exchanges required during construction to enable a smoother transition from completion to operation. They will encourage operator participation in the construction stage.
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