BIM ENGINEERING KNOWLEDGE
The employer’s information requirements will
go beyond the practical completion certifi cate to enable a smooth transition into operation, post-handover evaluation of performance, benchmarking and the creation of new model libraries for assemblies – for example, a four-bed ward, classroom or linear section of highway. The approach is about closing the feedback
loop so that the lessons learned during operation and use are clearly conveyed to the next project team through the client’s briefi ng material. Building Regulations require information
about the building to be handed over, and commissioning records and certifi cates to be produced and provided to whoever has procured the building. But it is often not done, or only done in a very sketchy way.
Wind of change BIM has the potential to change all that. Instead of creating information several times, in a BIM environment it only needs to be created once and then re-used several times. So for example, the model could include not just the compliance calculations for Part L, but also some estimates of the likely actual energy use in operation. And this data can be part of the building logbook, complete with information about the metering strategy for the building. Then, the actual
energy use can be compared to the estimates, and this can be used to inform the FM strategy. Details of the maintenance schedules can be downloaded, so that the operator knows what needs to be maintained, what consumables might need to be replaced, and what service intervals apply. They can even fi nd out what sort of statutory checks, such as fl uorinated gases under the F- Gas Regulations, will be required. And all of this information can be handed over to the client on a CD-ROM or a DVD. Nobody expects to buy a new car without a comprehensive and complete driver’s manual – we just do not do that. But we frequently hand over buildings costing tens or hundreds of times the cost of a new car, and there is no such logbook in sight. In some cases, we have some of the parties to the contract arguing that they shouldn’t be expected to provide such a thing. It just doesn’t make sense, unless you
have an interest in not using someone else’s data, or in recreating something that has already been produced once for the contract already.
Design
Procure
Build
Manage
Interoperability issues and inadequate information sharing between project stakeholders leads to excessive waste within the industry
15
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