MEASUREMENT OF BUILDING COMPONENTS DEFORMATIONS BY THE METHODS OF DIGITAL PHOTOGRAMMETRY.

Autor: Fraštia, Marek, Marčiš, Marián, Bajtala, Marek, Trhan, Ondrej
Předmět:
Zdroj: Proceedings of the International Multidisciplinary Scientific GeoConference SGEM; 2016, Vol. 2, p955-962, 8p
Abstrakt: Load tests of building components are mostly metric documented by the methods of length difference measurement. The most often used instruments are various types of dilatometers. Modern types of electronic dilatometers offer excellent precision about level of micrometers. But problems such: contact measurement, measurement 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 methods of digital photogrammetry for documentation of static deformation in discrete epochs as well as videogrammetry for documentation of dynamic deformation processes. Accuracy at submillimeter level was reached and advantages of this measurement techniques are commented. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index