1. Construction IT Alliance 22nd Members Meeting
Creating Interactive Facility Management Capabilities Through The Use of
Building Information Modelling Systems
May 25th 2011
The Science Gallery, Trinity College, Dublin 2
2. Who We Are?
COASTWAY Ltd. Was founded in 1999, and is the countries largest Geospatial Engineering
Survey Company.
Services offered by COASTWAY Ltd:
• Geospatial Engineering Survey Services
• Environmental & Structural Monitoring
• Construction Setting Out & Survey Training
• Topographical Surveying
• Laser Scanning
• Ground Penetrating Radar
• Recruitment
• Photography
• Resin Scale Modelling for Construction, Engineering & Architectural Markets
3. Applying Building Information Modelling to Existing Buildings.
• This presentation is highlighting the benefits of using the latest Laser Scan Technology in
conjunction with Building Information Modelling.
• To understand the full advantages of applying Building Information Modelling to existing
buildings, this presentation will use the example of this auditorium.
• The Following is an example of the information that can be attained from a laser scan, and
what this data can be used to achieve.
5. “Building Information Modelling is digital representation of physical and functional
characteristics of a facility creating a shared knowledge resource for information about it
forming a reliable basis for decisions during its life cycle, from earliest conception to
demolition.”
Building Information Modelling, Drawing is Dead – Long Live Modelling
Keith Snook, RIBA Director of Research & Technical,
http://www.cpic.org.uk/en/current-projects/bim/building-information-modelling.cfm
7. How to Produce a Building Information Model from a High Definition Laser Scan?
Laser Scan Technology To Building Information Modelling Workflow.
File Formats Available from Laser Scanning Process
• ASCII Text File of X,Y and Z Points
• TruView Viewing Software and Files
• Point Cloud Data with Cyclone Viewer
• CAD Drawings
• Modelled Surfaces
• 360° Spherical Panoramic Photography
8. Examples of High Definition Laser Scanners Implemented by COASTWAY Ltd.
HDS Scan Station 2 HDS 6000 Faro Focus 3D
Time of Flight Scanner Phase Based Scanner
9. What is a laser Scanner?
• Devices which lead a Laser Beam are called Laser Scanners. There are Laser Scanner
heads which can be attached to Coordinate Measuring Machines (CMMs) for the
documentation of sites and buildings.A Coordinate Measuring Machine (CMM) captures
3D data from objects to give the position in XYZ, vectors etc. of the object.
• A Laser Scanner emits a Laser Beam and then measures the angle and distance of the
return laser beam by accurately measuring the time of the return Laser Beam.
• Laser Scanning means that surfaces or 3D forms are swept over in a horizontal or grid
pattern with a Laser Beam to measure or process these to generate a 3D picture. The
Scan Data can be saved to various file formats for manipulation and analysis.
10. Why use a Laser Scan in Building Information Modelling?
• The Laser Scan Information can be accurate to within 0.01mm, and therefore can be used
to generate an accurate record of a building.
• The information from the scan can be used to generate a Building Information Model of
the existing building.
• Having an accurate Building Information Model at the commencement of a Project will
reduce risk of errors that would otherwise be caused by lack of information in a traditional
survey.
• Additional information that may be requested from the survey will already be in the scan,
and can be extracted to the Building Information Model, e.g. the position of sprinklers, pipe
and duct works, etc.
11. What are the Advantages of working with Laser Scan Data?
Longitudinal Section Extracted From Point Cloud of TCD Science Gallery Auditorium
12. What are the Advantages of working with Laser Scan Data?
Axonometric View Extracted From Point Cloud of TCD Science Gallery Auditorium
13. How to Extract Model Elements from Laser Scanner Point Cloud Data?
14. Example of Pipe Component Extraction Possibilities from Point Cloud
Handrail Profile Extraction
