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Videogrammetric monitoring of as-built membrane roof structures

Lookup NU author(s): Professor Jon MillsORCiD, Professor Peter Gosling


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A monitoring system that uses applied geomatics techniques, including videogrammetry and terrestrial laser scanning, has been developed in order to investigate the dynamic behaviour of as-built membrane roof structures. To accommodate the problems involved in measuring such roof structures, examples of which include uniform surface texture and unreachable height, the system adopts a non-contact targeting methodology to substitute for traditional control techniques. In-house software was developed for processing the acquired video imagery in order to produce a sequential surface model of the membrane. This paper firstly reports on experiments conducted to demonstrate that the monitoring system was capable of measuring representative test structures with a precision of better than ±1mm. To prove the feasibility and transferability of the system, videogrammetric monitoring campaigns were subsequently performed at a real-world test site where two different types of membrane structure were observed. The sequential 3D surface models that were generated allowed the displacement of the membrane surfaces to be investigated over a period, during which the range of the movement reached over 20mm. The information acquired from the system is proving to be of great value to structural engineers involved in research and development of such membrane structures. © Journal Compilation © 2008 Remote Sensing and Photogrammetry Society and Blackwell Publishing Ltd.

Publication metadata

Author(s): Lin S-Y, Mills JP, Gosling PD

Publication type: Article

Publication status: Published

Journal: Photogrammetric Record

Year: 2008

Volume: 23

Issue: 122

Pages: 128-147

Print publication date: 01/06/2008

ISSN (print): 0031-868X

ISSN (electronic): 1477-9730

Publisher: Wiley-Blackwell Publishing Ltd.


DOI: 10.1111/j.1477-9730.2008.00477.x


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