3D Laser Scanning Services in Tennessee

To complete the restoration of the church, the client required accurate 2D CAD drawings with precise measurements of the structural and architectural elements.

Our client needed accurate as built documentation to complete a $1.2 million restoration and improvement project for a historic church. The 1875-built church in Glandorf, Ohio was the largest Roman Catholic church built at the time. Built in Neo-Gothic style, it contained a 225-foot spire, beautiful statues imported from Austria and stained-glass windows imported from Germany. In 2017, the church underwent a 3-month historic restoration and improvement project. The project involved preventive measures including fiber-glassing the interior walls, painting and installing updated storm windows to protect the stained glass. In addition, damaged sections of the archway and niches were repaired, and a ceiling was lowered in the vestibule to highlight a stained-glass window.

GPRS’ client needed accurate as-built documentation to complete a $1.2 million restoration and improvement project for a historic church.

Our client provides historic restoration services and is dedicated to providing excellence in conservation and restoration. To complete the restoration of the church, the client required accurate CAD drawings with precise measurements of the structural and architectural elements. With a Leica P40 laser scanner, GPRS quickly captured the structural and architectural details of the church’s interior with92 laser scans. 3D laser scanning captured full spatial and color data with high detail and precision. Laser scanning can capture extreme detail for even the most intricate buildings easily. 3D laser scanning delivered a valuable data set to the client. Intensity map point cloud files provided digital visualization. 2D CAD drawings were created from accurate scan data. From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep your projects on time, on budget, and safe.

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3D Laser Scanning

GPRS captures 2-4 millimeter accurate measurements of the complex geometry of every high ceiling & wall, delicate window, sacred item, office, classroom, and more without contact from the ground.

A Denver Catholic church and school constructed in the 1950’s requested 3D laser scanning of their 56,000 sq ft three-building campus to plan for renovations. Our client was an architecture, planning and interior design firm specializing in commercial, institutional and academic design.

A Denver Catholic church and school constructed in the 1950’s requested 3D laser scanning of their 56,000 sq ft three-building campus to plan for renovations.

Location: Denver, Colorado Task: A Denver Catholic church and school constructed in the 1950’s requested 3D laser scanning of their 56,000 sq ft three-building campus to plan for renovations. Our client was an architecture, planning and interior design firm specializing in commercial, institutional and academic design. Problem: Construction documents existed from the original build, but the client was unsure if they were up to date. Each building required a different scanning scope. The church and parish hall required complete exterior and interior documentation, while the school required only exterior documentation. The church required new design drawings and cost estimates from the firm before proceeding with renovations. Solution: In one day on-site, a GPRS/TruePoint Project Manager completed 359 scans with the Leica P50 ScanStation and the RTC360 laser scanner. The client required point cloud files, 2D CAD drawings, a 3D Revit model, and TruViews to understand the existing conditions of the buildings on campus. 2D CAD exterior elevations and floor plans of the church; and exterior elevations of the school were created for this project. An LOD 200 Revit 2021 3D model of the church was delivered with architectural/structural details, including columns, beams, walls, floors, ceilings, doors, windows, stairs, roof, pews, lectern, and alter. An LOD 200 Revit model was delivered of the school exterior. Benefits: Renovations are not new to this campus; they recently added an outdoor learning lab and eucharistic adoration chapel. They understand the value of accurate as-built data. The firm wanted to keep the historic craftsmanship of the church but provide modern updates. A quality point cloud created a reliable as-built BIM model of existing conditions with ¼ inch accuracy tolerance.

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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.

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3D Laser Scanning