DBPapers
DOI: 10.5593/sgem2017/23/S10.024

PHOTOGRAMMETRIC MEASUREMENT OF CONCRETE PANEL DEFORMATIONS DURING LOAD TEST

M. Marcis, M. Frastia, T. Augustin
Monday 11 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-03-4 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 23, 195-202 pp, DOI: 10.5593/sgem2017/23/S10.024

ABSTRACT

Measuring the behavior of building components during load tests is mostly done by the methods of length difference measurement. The most often used instruments are various types of dilatometers and inductive sensors, some offer excellent precision about level of micrometers. But problems such contact measurement, measurement of only one quantity (length), limited number of sensors located on object, need of cabling, possibility of instrument damage, high price of instruments, influence of other physical quantity of object (humidity, temperature) can be well eliminated by the non-contact optical methods. In our contribution we use various methods of digital photogrammetry for documentation of static deformation in discrete epochs, a combination of single photo and multi-image convergent photogrammetry. Photogrammetrically obtained data are compared with the results from traditional methods of measurement like dilatometers and inductive sensors. Accuracy at submillimeter level was achieved and advantages of this measurement techniques are commented.

Keywords: building components, digital photogrammetry, load test