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Statistical Properties of Strain and Rotation Tensors in Geodetic Network
Marjetič, Aleš (Avtor), Ambrožič, Tomaž (Avtor), Turk, Goran (Avtor), Sterle, Oskar (Avtor), Stopar, Bojan (Avtor)

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Izvleček
This article deals with the characteristics of deformation of a body or a figure represented by discrete points of geodetic network. In each point of geodetic network kinematic quantities are considered normal strain, shear strain, and rotation. They are computed from strain and rotation tensors represented by displacement gradient matrix on the basis of known point displacement vector. Deformation analysis requires the appropriate treatment of kinematic quantities. Thus statistical properties of each quantity in a single point of geodetic network have to be known. Empirical results have shown that statistical properties are strongly related to the orientation in single point and local geometry of the geodetic network. Based on the known probability distribution of kinematic quantities the confidence areas for each quantity in a certain point can be defined. Based on this we can carry out appropriate statistical testing and decide whether the deformation of network in each point is statistically significant or not. On the other hand, we are able to ascertain the quality of the geometry of the geodetic network. The known characteristics of the probability distributions of two strain parameters and rotation in each point can serve as useful tools in the procedures of optimizing the geometry of the geodetic networks.

Jezik:Angleški jezik
Ključne besede:geodetic networks, confidence interval, kinematic quantities, strain tensor, normal strain, shear strain
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FGG - Fakulteta za gradbeništvo in geodezijo
Leto izida:2010
Založnik:American Society of Civil Engineers
Št. strani:str. 102-110
Številčenje:Letn. 136, št. 3
UDK:528:624.04
ISSN pri članku:0733-9453
DOI:10.1061/(ASCE)SU.1943-5428.0000020 Povezava se odpre v novem oknu
COBISS.SI-ID:4805473 Povezava se odpre v novem oknu
Število ogledov:188
Število prenosov:86
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
Skupna ocena:(0 glasov)
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Gradivo je del revije

Naslov:Journal of surveying engineering
Skrajšan naslov:J. surv. eng.
Založnik:American Society of Civil Engineers
ISSN:0733-9453
COBISS.SI-ID:7016453 Novo okno

Sekundarni jezik

Jezik:Angleški jezik
Ključne besede:geodetske mreže, interval zaupanja, kinematične količine, tenzor deformacij, normalne deformacije, strižne deformacije

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