A GPRS Case Study

3D Laser Scanning To Expedite The Installation Of ACM Panels

Contracting GPRS to do a 3D laser scan has been one of the best project decisions we made. With their help we were able to reduce cost, increase productivity, and deliver the project on time.

Vincent M.

Superintendent

Highlights

THE BOTTOM LINE

The client was able to fabricate components offsite and plan a flawless installation based on our existing condition data and 3D model. Plus, GPRS' work was conducted entirely at night, mitigating any disruption to construction

INDUSTRY

Facilities - Airports

SERVICE

3D Laser Scanning

LOCATION

Queens, New York

PM Insight

Deliverables

PROJECT APPLICATION

Provide accurate measurements and existing condition documentation to allow for the prefabrication and proper installation of ACM (aluminum composite material) panels to the canopy of a newly constructed airport terminal

ASK

3D laser scan a complex construction site at an airport, including a 65 ft. canopy, on which the client would be affixing prefabricated aluminum composite panels with no room for error, and provide accurate existing condition documentation and a 3D model to aid in accurate prefabrication and prevent reworks

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Task

Field verification to prefabricate ACM panels

PROBLEM

The construction plans did not match the existing conditions at the site. The installation process needed to be precisely planned to avoid rework
The shape of the canopy was complicated and stood 65 feet in the air. The client needed field verification and a plan to expedite proper installation of the panels
Installers were working overhead in a lift; there was no room for trial and error

Solution

The Project Manager conducted a site walk to devise a plan for the client
The canopy and curtain wall of the airport terminal were 3D laser scanned to capture precise as-built data and generate a 3D model and 2D drawings to facilitate ACM panel installation
22" x 34" 2D CAD drawings were created with the panel layout for the client to take to the field. This allowed each panel to be labeled with a custom number, cut and shim points

Benefits

Laser scanning obtained exact measurements for the client and took away any guesswork from this project
To circumvent the active construction site, the Project Manager scanned the site at night to eliminate movement and trades working
The client was able to fabricate components offsite and plan a flawless installation