GPRS provided 3D laser scanning services for six parking lot structures at the Dallas Fort Worth International Airport, ranging from 500 to 2,500 square feet in plan area. The client wanted accurate dimensional information to prefabricate replacement canopies for each of the structures.

GPRS provided 3D laser scanning services for six parking lot structures at the Dallas Fort Worth International Airport, ranging from 500 to 2,500 square feet in plan area

Dallas Fort Worth International Airport – DFW Airport, Texas Prefabrication of Canopies for Parking Lot Structures ‍ TASK: GPRS provided 3D laser scanning services for six parking lot structures at the Dallas Fort Worth International Airport, ranging from 500 to 2,500 square feet in plan area. The client wanted accurate dimensional information to prefabricate replacement canopies for each of the structures. ‍ CHALLENGE: The client needed accurate information to design replacement fabric panels, including the location of the attachment plates and fasteners. They requested a quick turnaround on this project, GPRS expedited deliverables within 15 working days of the purchase order. ‍ SOLUTION: Dimensions were quickly verified in these high traffic areas of the airport with a Leica laser scanner. GPRS’ Mapping & Modeling Team created an LOD 200 Revit 3D model including basic structural elements, such as exposed structural columns and joists, grade and canopy. With the 3D model, the following details could be used to expedite prefabrication and installation - elevations, plan dimensions, radii of rolled elements, plus locations and dimensions of all attachment hardware.

All

3D Laser Scanning

Providing both a 3D BIM model and a 2D reflected ceiling plan allowed various trades and MEP professionals to work without disturbing each other's timelines, to finish the project with fewer mistakes, reworks, and less cost.

Use 3D laser scanning to create a BIM model for new construction coordination in Paoli, Pennsylvania.

GPRS provided a detailed Revit 3D BIM model and reflected ceiling plan to keep a large project on schedule and reduce clashes and reworks.

Only the building shell existed, but did include the foundation, structural skeleton, columns, beams, and fire suppression system pipingA BIM model was requested to complete the design, minimize clashes, and plan for field coordinationThe VDC engineer wanted each trade to be able to conduct their specific work without interference from other trades A 3D Revit model was created from the point cloud with standard detail that included architectural, structural, and MEP featuresA reflected ceiling plan, an architectural drawing that shows visible objects located on the ceiling of a space, was delivered for MEP coordination2D plans and 3D models allowed this client to complete the design, communicate the scope of work to each trade, and efficiently schedule work to be completed Model-based implementations are the foundation of our client’s VDC department. They plan site layout and work sequencing for efficient logistics and safety.Because the VDC engineer received an accurate as-built model to place all building components and MEP into, they were able to effectively plan and communicate to minimize trade interference, clashes, installation problems, rework, and additional costs

All

3D Laser Scanning

GPRS’ detailed 2D CAD drawings and 3D BIM model allow for safe cutting, coring & drilling for building-wide MEP and HVAC installations.

GPRS located and marked the full post-tension cable system layout for 12 floors of a 49-floor building, with approximately 12,500 sq. ft. of concrete on each floor. After concrete scanning was completed with ground penetrating radar technology, GPRS 3D laser scanned each floor to produce 2D CAD drawings and a 3D BIM model for virtual design and construction. The architect received a permanent record of the post-tension cable layout to complete fit and finish design plans for the building.

Mapping the PT cable layout in concrete slabs facilitates design and minimizes the risk of injuries and delays.

GPRS’ detailed 2D CAD drawings and 3D BIM model allow for safe cutting, coring & drilling for building-wide MEP and HVAC installations. Construction Concrete Scanning, 3D Laser Scanning & 3D BIM Modeling Concrete scanning services will locate critical targets like post tension cables, rebar, conduits, voids, and more to help keep your project on time, on budget, and safe. 3D laser scanning captures concrete markings with 2-4mm accuracy for GPRS to transform into custom 2D CAD drawings and 3D BIM models. GPRS located and marked the full post-tension cable system layout for 12 floors of a 49-floor building, with approximately 12,500 sq. ft. of concrete on each floor. After concrete scanning was completed with ground penetrating radar technology, GPRS 3D laser scanned each floor to produce 2D CAD drawings and a 3D BIM model for virtual design and construction. The architect received a permanent record of the post-tension cable layout to complete fit and finish design plans for the building. Post-tension cable location, spacing, and depth are determined by an engineer, are specific to each project, and must be traced in short distances to reveal the slope. Each tendon pulls 24,000 to 33,000 lbs. of pressure. Damaging a cable when cutting, coring, or drilling into a slab can cause a tendon to burst with enough force to cause severe injury or death, and impact the structural integrity of the slab. Replacing a single post-tension cable costs $10,000 - $20,000. Experienced Project Managers used ground penetrating radar (GPR) technology to locate and mark the precise details of each concrete reinforcement, documenting the location, number of cables, and depth directly on the slab and ceiling. After the post-tension layout was complete, each floor was 3D laser scanned to capture the field markings. That data was used to create a virtual tour, 2D CAD drawings (PT site layout and floor contours,) and a complete 3D BIM model of the site. The captured point cloud data was aligned to survey control, then to the client’s design model, further ensuring the accuracy of the data. GPRS has a verified 99.8% accuracy rate for concrete scanning, backed by our Green Box Guarantee. Laser scanning is accurate within 2-4mm. An accurate layout of post-tension cables protects tendons from damage, prevents injury and mistakes, and protects the integrity of the building. 2D plan sheets and a 2D floor contour map documenting the actual floor elevation added even more accuracy to the depth of cover that is field marked. The 3D BIM model provided the architect data to plan fit and finish designs and coordinate with contractors and MEP trades before build-out.

All

3D Laser Scanning