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existing conditions, part 1

A few months ago, I mentioned that Tocci was looking in high definition scanning (HDS) to understand the existing conditions of a building.

Instead of writing about each step as we were going through with it, I decided to wait until we went through the entire process. So much to digest and analyze. Now that we are (almost) done, I think I am ready to share!

Some background on the project:
6 story, 720,000 SF existing building; the building is completely empty except for the cast-in-place concrete structure and some limited piping/electrical. The building is being converted into luxury apartments.

We decided to go forward with the HDS of the building in May. The crew starting scanning the interior & exterior of the building in early June. The utilized two Leica scanners: HDS 3000 & HDS 6000; it took them 10 days and they utilized 485 scans positions.

They delivered us the scan data in a few different formats. One is the point-cloud file, which we are using NavisWorks to view. They also delivered "TruViews" of the building, which is a way to view
the 360 that each scan position captures.

TruView shows the location of each scan, using yellow markers.












When you click one, like the red one circled above, you can navigate the 360 that the scan captured in that spot (see below). You can also measure and create mark-ups.

At first, I thought the TruView would be a good way for non-technical users to view the scan data. But it has proved to be very valuable for even the project modelers. It is our 'ultimate source of truth' regarding the existing conditions.

The final two deliverables from Metco were models of the building. Both deliverables were in CAD. One model was all of the floors/ceilings of the building, modeled to accurately depict the undulations in the surfaces. The other model was everything else in the building.

I'll save those for parts 2, 3, 4, etc.