The project’s BIM model was designed by the architect in Autodesk Revit, into which would be incorporated numerous sub-contractor programmes. Although it would be updated regularly, and a comprehensive as-built documentation stack would be compiled by the site team, Galliford Try decided that creating close integration between the model and programme activities would be critical to maintaining control, managing progress, and assuring excellent communications during the project. Galliford Try is a regular user of Powerproject as a planning software platform; it adopted the BIM version of the software to deliver that integrated perspective.
When the project started, graduate Ibrahim Patel had recently joined the group as a planner, with the new Birmingham Conservatoire as his first project. He was given the task of creating a 4D plan that would give the project team an integrated view of activities and progress of the building in the form of a 3D visualisation. It provided a hub into which all the asbuilt information marked up on working drawings and documents could be integrated, to maintain a current view of progress. “The 4D BIM model we created in Powerproject BIM gave us a visualisation model alongside our main BIM model” he explained. “We always have lots of as-built records and drawings on paper and marked-up – we could now take that information, put it into the 4D BIM model, and gain a 3D representation of that information to see it more clearly. It instantly becomes easier to see both what is planned, and what has happened, in one place.”
The visualisation provided an integrated view of progress for the planners, and was made accessible via SharePoint to senior management, if they required it. However, it became most valuable when used as the basis for client communication: “The visualisation you create in Powerproject BIM really benefits the client. When they come in for their monthly meeting we can easily produce a video to show the planned model versus an actual model. That shows them within just a few minutes exactly where the project should be and where it is. Without the video you’d spend lot of time trying to explain where we are and where we should be – with the video, they can see it straight away.”
Sub-contractor communication was also a beneficiary, as Ibrahim outlined: “We have progress meetings with individual sub-contractors where we pull up the Powerproject programme and go through their works. As well as discussing how far they have come along and anything they are putting in place to get back on track, we can also look ahead. We can re-sequence works to save us time in the future or avoid several contractors working in the same space at the same time.”
The software was used to link asbuilt information to the visualisation. “Powerproject BIM gives us a highlevel overview of the project. As we get into the nitty-gritty of activities, we capture information within our as-built documents. For example: for an elevation of brickwork, we have a drawing that’s marked up to show the brickwork that has gone up each week, which goes into the as-built document stack. We can take that information and put it into Powerproject BIM, and the model then gives us a visual overview of what has happened too.”