Stage 04: 3D Laser Scanning related to BIM – Is it doing what we think it says on the tin? (Case Study)
16:15 – 17:15
3D Laser Scanning related to BIM – Is it doing what we think it says on the tin?
The profile and awareness of 3D laser scanning has grown exponentially over the last couple of years. There is increased visibility of scanning manufacturers extolling the virtues of each of their products and many BIM presentations mentioning or touching on the subject with no great detail.
With over 40 high profile ‘BIM ready’ projects as references, we propose to review and communicate the real technical applications, workflows, particular issues and lessons learnt associated with the different built environments we have encountered.
Case studies of Bristol Temple Meads Station, The Natural History Museum, Leicester Cathedral, Broadgate Arena, 240 Blackfriars, City University plus others, will highlight the key objectives and outcomes utilising this technology.
Director – Plowman Craven Limited
Is it doing what it says in the brochure?
First adopters and technical innovators
All stakeholders have access to the date to filter how they choose rather than letting the surveyor decided.
Creates legacy data of really what is there.
Surveyors have the necessary rigour to optimise the instruments output. Quality control.
Right tools for the job, quality control, capabilities and capacity, liability, software familiarity, geospatial awareness and data management.
Data management considerations in unskilled hands. Unclean and messy, unintelligent , heavy date set and unmanageable.
Existing scans of pipes were remodelled only on objects of 50mm diameter or more.
Specify what was to be gained from the scanning process. Different disciplines have different requirements.
An asset reference that does not have to be modelled to be useful.
Scan early to use that data going forward as a solid data set for reference as a baseline.
Agreed level of tolerance between model and cloud and then use colour to show deviation.
Line of sight only. This can decide when to scan.
It’s only as good as the control it’s based on.
Plowman craven BIM survey specification. What do you want to use the information for. Who is going to use it. Leica true view
Data for pre construction tender
Early decision making
Bring design into the point cloud. Hoarding etc, quicker than modelling.
240 blackfriars – scan
Shard – slab variation analysis. Office manufacture for fit out. Independent checks against design. Structural and service recording prior to fit out. T&T