6 Ways Data Analytics is Transforming BIM

The use of building information modelling (BIM) is rapidly increasing in the design, construction, operation and maintenance of building and infrastructure assets. The reason is simple, according to AECOM’s James Rosenwax and Ben May: digital technology is making it easier, cheaper and more efficient to manage buildings and infrastructure projects through digital models. Using BIM, we can make digital replicas of physical assets, processes and systems; the so-called ‘digital twins’ of buildings. These models show three-dimensional details of construction drawings including structural, electrical, and mechanical elements, and fire safety systems. In addition to these key design elements, there are a... (read more)
2020-01-13 11:17:45

Seeing the Future: AI, BIM and Digital Twins

Digital Construction Week 2019
During Digital Construction Week (DCW), which was held at the Excel in London from 16-17 October 2019, there was one seminar stream on geospatial surveying and two specifically on building information modelling (BIM). But relevant topics such as artificial intelligence (AI) and visualization, as well as BIM, cropped up in many of the other sessions. The most used buzzword was 'digital twin', which was heard in many talks and in the exhibition booths. The term digital twin is used quite flexibly, but essentially it implies that an object must have a digital representation which can be presented visually, i.e. a virtual... (read more)
2020-02-11 08:57:24

Everything You Need to Know about Scan-to-BIM

Scan-to-BIM brings the documentation of existing buildings into line with the modern digital planning methodology called building information modelling (BIM). This article describes how scan-to-BIM uses 3D laser scanning to digitally capture an existing building as a point cloud, for the creation and updating of a BIM model. The primary method of scan-to-BIM is to use 3D laser scanners to capture a high-density point cloud of a physical building, structure, or site, which leads to the creation and maintenance of a BIM model that reflects "as-is" conditions. Downstream applications for models made using scan-to-BIM can range from as-built documentation, project... (read more)
2020-05-12 09:15:55

3D Modelling for Property Valuation in China

A High-resolution Remote Sensing-based Approach
Rapid urban development in China has transformed the cityscapes, with a dramatic increase in high-rise buildings. However, the current 2D property valuation methods neglect the vertical dimension, even though that aspect contains significant indicators that impact property value – such as types of views, scope of vision and daylight. 3D modelling of geographical data can help to change this in high-rise and high-density areas, going beyond 2D to enable identification of complex property characteristics in the vertical dimension too. This article presents research to explore a 3D modelling approach using remote sensing data for more precise property valuation. The accelerating... (read more)
2019-09-26 10:00:54

Home Renovation Made Easy with Handheld 3D Scanning

As residential real estate prices continue to climb in many parts of the United States, property owners are increasingly investing in renovations and additions to their existing homes. To meet the demand, architects seek digital as-built documentation of the structures, so they can design the new construction. Many are asking for mobile 3D scanning by name as the technology they prefer to quickly capture the accurate, comprehensive as-built detail needed to start the design work. Business is booming for Precision Property Measurements (PPM), a Long Beach, California, firm that has provided as-built documentation services to Architecture, Engineering and Construction (AEC)... (read more)
2019-09-10 09:59:42

3D Modelling for Construction

When it comes to 3D modelling for construction, what are the advantages and disadvantages of photogrammetry versus Lidar in terms of accuracy, complexity and cost? Breaking away from laser measurement in construction is a taboo subject, perhaps hampering the use of photogrammetry. In construction, aerial survey has enormous time-saving benefits for measuring groundwork areas. Data can be used for asset classification, construction validation as well as health and safety. In particular, regular scans provide a time series of work in progress to detect new issues, managing risk rather than responding to it. This article looks at the state of the... (read more)
2019-10-15 03:28:52

Digitizing Reality: Automated 3D Point Cloud Data Processing Using AI

Intelligent Point Clouds
Instruments for digitizing the 3D real environment are becoming smaller, more lightweight, lower-cost and more robust. Accordingly, they are finding increasingly widespread usage, not only on surveying tripods for the highest accuracy, but also on mobile platforms such as autonomous vehicles, drones, helicopters, aircraft, robotic vacuum cleaners, trains, mobile phones, satellites and Martian rovers. Lidar uses laser scanning, while photogrammetry records images from one or more cameras which may be moving. Each laser scan records tens of millions of data point positions and colours in a point cloud, and hundreds of such point clouds may be combined. This article discusses... (read more)
2020-02-25 10:56:50
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