Skanska - BIM requirement process

Joel Öman works with BIM and digitization and is responsible for the Solibri process at Skanska. The company has recently created their own BIM requirements flow, that clarifies how to use the project information for production together with the 3D models.

Skanska has developed their own set of rules in Solibri to ensure that the company's requirements are met in the projects they are involved in. As a digital leader, Joel has also optimized a method for how Skanska presently work with reviewing the documents in the projects. Quantity take-off is also made in Solibri, where ready-made recipes have been created which makes it easier to do calculations. Window building element orders are also made directly from the model for delivery.

"The power of looking at a 3D model, as opposed to staring at a 2D drawing that easily can be misunderstood", is one of Joel's favorite techniques.

In order for more people to be able to benefit from the 3D model, visualization is a key word. Joel describes how to work with this throughout the construction process where Solibri plays an important part. He is also program manager for Solibri at Skanska and works actively with digitization of the construction process.

Skanska previously made a strategic decision to gather the BIM coordinators - of which Joel was one - and link them closer to production. The idea was that more people could benefit from the models. Therefore, a clear set of requirements has now been formulated to create an efficient digital working method that consists of Skanska´s own requirement specifications; 3D models, BIP codes, review and then on to production. A recurring requirement is that you use the 3D model throughout the design phases.

Solibri secures the model's data

The previously used CAD manual at Skanska has today been developed and adapted to the information that you want to retrieve from the models in the projects. This is clearly illustrated by its name – Model Requirements Specification & Information Management (Kravspecifikation Modell & Informationshantering, KMI in Swedish). The 3D models are checked against the set requirements in the specification to ensure that the amount of information is correct; which data is included and whether these need to be updated.

Solibri is used for that process - which Joel thinks is fantastic to work with as it is so visual. It is easy to detect and show where any errors and collisions are in the model during a joint review.

Easier to quantity

The overview that Solibri provides simplifies the quantity take-off, with pre-written recipes where among other things the different properties of the building components are available. Joel exemplifies this in a clear way and tells us that one of their partners – the window supplier - use the printout from Solibri as an order for the window types in the building. "A nice collaboration where the whole chain is linked together," says Joel.

Visualization directly at the construction site

The 3D model also fulfills important functions at the work site in several ways. For the supervisor, the model is a support when a building production schedule is to be developed to show the next step in the process. Information can be added directly into the model. Another important function is that the model shows where on the construction site problems might arise during the work process - for example to carry out an installation.

The model has an important task as it visualizes the information in a way that a drawing never can do. Joel points out that subcontractors often want to do their job in a short time span and then move on to the next project. With the help of Solibri and the model, it is easy to visually show what order of priority must be applied on the site for everything to be correct from the start.

Presenting the project at construction coordination meetings with the help of Solibri visualizes the model and simplifies the various phases of the construction process.

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About Patrik Mälarholm

Patrik is a construction engineer and has been working with 3D/BIM with Archicad since 1995. Patrik is also a co-founder of Nolliplan and is now focusing on helping the construction industry to add cost and time to BIM.
  • Sweden