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Construction Tech Review | Saturday, November 12, 2022
BIM projects are evolving in the AEC industries, with several trends such as 3D printing, laser scanning, and prefabrication influencing the BIM future.
FREMONT, CA: Building information modelling (BIM) projects are increasingly developing in the architectural, engineering, and construction industries (AEC). The primary objective of using BIM software is to enhance project performance and generate better outcomes. BIM tools allow professionals from different disciplines to collaborate effectively. With these benefits, several state-of-the-art trends today are influencing the future of BIM.
Improved 3D Printing
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3D printing technology has several applications, ranging from rapid prototyping in professional design companies and small-scale manufacturing by designers to first field tests in single-story buildings.
There are three major 3D printing technologies: stereolithography (SLA), selective laser sintering or melting (SLA/SLM), and fused deposition modelling (FDM).
All these technologies are based on the additive manufacturing concept and differ in the material type or technique used to combine the material. BIM and 3D printing reduce the timeline for preparing various drawings, plans, and models. This is due to the increased time invested in the design using BIM software. The software allows for more customisation and makes the development process of complex structures much easier.
All geometry and structural elements are first specified and simulated in a digital 3D model with BIM. After approval, the data is transferred directly to the 3D printer. This reduces the number of methods in the construction process. Thus, BIM allows highly accurate design development while reducing material waste and costs.
Advanced 3D Laser Scanning
A 3D laser scanning records information about a structure, such as its appearance and shape. The scanners then translate this information into data points, which can be imported into BIM software. 3D laser scanning provides several advantages, such as recording information faster and reducing human error due to automated data collection.
Another 3D laser scanning use case is drone surveying. This established the distance between points and their locations in 2D and 3D. Drones can rapidly collect data from locations that are inaccessible to humans.
Rise in Prefabrication
Prefabrication occurs in two primary steps: assembling structure components at the manufacturing site and transporting these components to the construction location. Prefabrication alleviated construction costs by saving on time, wages, and materials. BIM software plays a vital role in prefabrication. For example, companies with coordinated BIM models can easily prefabricate components that will fit together on the installation site.
BIM develops detailed models in a fabrication-level 3D file format, directly triggering computer-aided manufacturing (CAM) machines. These machines create components with high precision, accuracy, and quality. Without BIM, companies would have to generate CAM data for the manufacturer, which is an additional step where inaccuracies could occur in the data. As a result, businesses can reduce the risk of prefabricated components failing to fit properly during installation by utilising BIM.
BIM projects evolve in the AEC industries with various trends influencing the BIM future. Some crucial ones include the BIM application in 3D printing, 3D laser scanning, and prefabrication. Furthermore, the combination of BIM and the cloud for online collaboration is significant for organisations.
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