文章基本信息

标题：Terrestrial Laser Scanning And Non Parametric Methods In Masonry Arches Inspection
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作者：P. Arias ; B. Riveiro ; J. Armesto 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2010
卷号：XXXVIII - Part 5
页码：39-44
出版社：Copernicus Publications
摘要：Historical bridges are not only elements of our cultural heritage but also civil engineering structures. They are usually researched with destructive technologies, but their geometry is being more and more used in order to perform structural analysis, and this way it would be possible to make a diagnosis of their state of conservation. Laser scanners collect a great amount of data that allows building accurate 3D models that can be then used to make dimensional and structural analysis of these civil structures. This paper presents a geometrical research carried out in the Roman Bridge of Segura (Spain). A 3D model of the bridge was built by means of a terrestrial laser scanner, and then its geometry was analyzed by two different methods. Firstly, by means of a direct way, a graphical analysis in CAD systems was performed and the main geometrical parameters were obtained and evaluated; secondly, using statistical nonparametric methods, developed for this kind of structures, it was possible to identify pathologies on the structure thanks to the measurement of deformations in vaults by means of a symmetrical study. The results of both methods are presented in this work, and then they are compared and discussed
关键词：Arch Bridges; Laser Scanning; mesh processing; non parametric methods