TY - CONF
T1 - Comparison between topographic and photogrammetric techniques fordeformation monitoring of the dome of the Massimo Theatre in Palermo
AU - Orlando, Pietro
AU - Dardanelli, Gino
AU - Villa, Benedetto
PY - 2012
Y1 - 2012
N2 - This paper shows the first results of a study aimed at monitoring the deformations of the dome of the Massimo Theatre in Palermo caused by thermal dilatations, with the use of topographic and photogrammetric integrated techniques. Particularly, two robotic total stations and high precision digital photogrammetric systems were employed. In order to correlate thedisplacements of the rollers on which the steel structure of the dome rest with the thermal gradients, different thermal images were acquired by a thermal imaging camera. The main goal of the work was to compare the two techniques with reference to very small(submillimeter) deformation measurements. The obtained results show that the rollers are still working correctly. In fact, for a thermal gradient of 6 °C both topographic andphotogrammetric techniques determined displacements in the order of 0.8 mm, according with the expected deformations of the theoretical model.
AB - This paper shows the first results of a study aimed at monitoring the deformations of the dome of the Massimo Theatre in Palermo caused by thermal dilatations, with the use of topographic and photogrammetric integrated techniques. Particularly, two robotic total stations and high precision digital photogrammetric systems were employed. In order to correlate thedisplacements of the rollers on which the steel structure of the dome rest with the thermal gradients, different thermal images were acquired by a thermal imaging camera. The main goal of the work was to compare the two techniques with reference to very small(submillimeter) deformation measurements. The obtained results show that the rollers are still working correctly. In fact, for a thermal gradient of 6 °C both topographic andphotogrammetric techniques determined displacements in the order of 0.8 mm, according with the expected deformations of the theoretical model.
KW - Deformations monitoring
KW - Digital
photogrammetry
KW - Robotic total station
KW - Thermal dilatation
KW - Thermal imaging camera.
KW - Deformations monitoring
KW - Digital
photogrammetry
KW - Robotic total station
KW - Thermal dilatation
KW - Thermal imaging camera.
UR - http://hdl.handle.net/10447/64461
M3 - Other
SP - 1
EP - 15
ER -