
An Overview on Scan to BIM Modelling for Architectural, Structural and MEP Services
This construction industry has grown leaps and bounds with lot of transformations and newer construction techniques causing a positive change. Let’s talk about one such technology that has eased out renovation and retrofit projects to a large extent. Laser scanning method has brought opportunities for survey companies of combining the surveys of the constructed building with as built modeling.
Laser Scanning – An Introduction
Laser scanning is a process of compiling the “construction data” through the means of scans and point cloud. The scanning process acts as a substitute for manual surveying. This process is much faster than the manual surveys due to which the dependency on survey technicians gets reduced to a very large extent. Let’s have a look at some advantages that survey companies globally can avail by using laser scanning
- Data capturing from Multiple angles is possible helping in massive coverage of point clouds which is not possible in manual survey
- Manual involvement is reduced which results in the productivity of resources
- Cost effective approach and an automated process
- Quick processing of data
- Converting scans into inverse construction process such as, as built modeling, Construction Drawings, 3D rendering etc.
Scan to BIM services are extremely useful for renovation projects. We can convert any existing objects into 3D models or drawings after their scanning. After the 3D scanning, these data can be exported to CAD and BIM for the creation of 2D CAD drawings, plans, Elevations, Sections, 3D BIM & CAD models etc.
Field technicians and Engineers uses this Laser scanning technique for scanning objects up to several hundred meters.
Utilization of Scan to BIM Services across different service disciplines
Architectural point cloud to BIM Modelling: Building site designing along with the exteriors and interiors can be scanned and built into comprehensive Architectural BIM Models. Survey companies who are into the business of renovation and retrofit avail the advantages of Scan to BIM Services. Accurate As built data can be obtained and transformed into 3D Models from point cloud or scans. Large areas can be scanned with the help of laser scanners and existing design model can be created to understand and implement new design ideas after renovation.
Structural Point cloud to BIM Modelling: We can scan the buildings in a way that all the internal elements like columns, beams, connections, foundation slabs, wall penetrations etc. are exposed enough to give an idea of their current state. These structural components are scanned to evaluate the existing condition of the buildings. The scans when converted into 3d model identifies the existing glitches and helps a structural engineer analyze the changes prominently. Based on this analysis we can plan the proposed changes. Engineering inputs from Structural Design Engineer can be an additional requirement.
MEP point cloud to BIM Modelling: Scan to BIM Services ensures that the underground or concealed MEP systems are captured well enough to make a thorough analysis. Old buildings have lot of plumbing and drainage issues. In such buildings, these areas may be damaged and need repairing. For maintenance and reconstruction purposes, such As built models come handy and are used.
Conclusion: Even though there are many benefits that laser scanning offers, it is not really been able to capture the market majorly. Scan to BIM conversion process can be outsourced to BIM service providers in India hence, survey companies only have to invest in the scanners.