BIM3D.cz | Case Study from District Court

Detailed description

For the display of the interior and exterior of the District Court in Karlovy Vary, we chose the method of 3D laser scanning which measured the entire building completely.

The documentation included the complete surveying of the building, outputs in the dwg and dxf formats, coordinates of points, ground plans of all floors (incl. the height of windowsills and any other structures), cross sections, all façades and the layout of the building and the immediate neighbourhood

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Creation of 3D Model

The scanning works themselves were performed using two static scanners. One of them was Trimble X9, having a high level of automation (self-calibration, self-horizoning, self-registration, ...), and the other Trimble X7. Thanks to the team's efficient work and the applied technology, we achieved the desired accuracy and rate of data collection, which is crucial for the quick implementation of this type of projects. The obtained point clouds were processed and digitised in Autodesk Revit software. The resulting drawings (views, sections and ground plans) of the entire Court building were created from the 3D model.

Point cloud

Drawing - side view

Drawing - front view

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Objectives and Benefits

Our objective was the collection of 3D data in the required accuracy and density for the creation of the 3D model. The data were collected by means of laser scanning using three static scanners Trimble X9 and Trimble X7, which enables sufficient data accuracy and sufficient density of the resulting point cloud to process the 3D model. The creation of the full 3D model by means of laser data enables creating the permanent record of the interior, attractive presentation or analysis of the space for further planning or reconstruction.

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Graphic Benefits

Finding detailed properties and general geometry of objects
High precision object surveying
High speed and determination of results when needed
Detailed survey
Better orientation and imagination for the client (dealing with changes in the project)
Presentation visualisation of the object as a whole
Suitable basis for design and modelling
Realisation of sections at any location and level of detail
Possibility to generate 2D drawing documentation

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Non-Graphic Benefits

Possibility to connect to facility management (use by the investor)
Simple and quick spreadsheets, statistics
Easy updating of 3D models

Technologies used

Trimble X9

The high-speed scanning station has a high degree of automation (self-calibration, auto-orientation, self-registration, ...). This station expands on the proven Trimble X7 and delivers a longer range, higher accuracy, shorter scan times (due to high scanning speed), and higher laser sensitivity. This improves scanning results and increases productivity. Dark or reflective surfaces that were previously difficult to process can be scanned. It also allows the scanning of smaller areas with higher density to obtain the necessary detail in critical areas. Data can be processed in the field or the office.

Trimble X7

The high-speed scanning station is the latest innovative solution in mapping, engineering, and surveying that provides data visualisation directly in the field. Fully integrated 3D scanning functions form its basis. It allows for data to be exported to standard point cloud formats.

Reference