Abstract
The article presents a method of non-invasive diagnostics of a historic wooden church, built in the 18th century. Over the hundreds of years of its use, changes in the geometry of the structure have been observed. This article presents the requirements of so-called architectural and geodetic survey and the method of using terrestrial laser scanning to create a three-dimensional solid model of an object. The diagnostic tests performed made it possible to perform analysis based on a so-called point cloud, which is a virtual representation of a real object. In order to determine the basic parameters of the building, the area and volume of all rooms were determined. It was found that the object exhibited deformations that cannot be explained solely as a result of imperfections during climb and normal wear and tear during operation. Therefore, the changes in shape were assessed in detail by means of an assessment of the verticality of the pillars supporting two levels of the church, the verticality of the walls, and the inconsistency of the floors, as well as the shape and horizontality of the roof edge. Additional InSAR and FEM tests of the object’s location on the ground allowed identification of the cause of the object deformation as the influence of inhomogeneous groundwater relations under the building. Without prophylactic measures, this deformation phenomenon can be expected to worsen. The tests described should therefore be considered as essential in subsequent diagnostic cycles and permit future extended numerical FEM analysis.
Highlights
Academic Editor: Francesca CignaThe historical heritage of any nation is associated with buildings that testify to the cultural development and traditions of that country
One means of assessing structural stability is the analysis of the geometry of an object and its changes in terms of the study of structural deformation
Which makes andofsubsequent analysis difficult. It was example, based on diagnostics the experience deformation analysis of objects mining areas, it decided to use non-contact, ground-based laser scanning techniques, satellite interferocan be concluded that the image of this deformation is consistent with their causes (e.g., appropriate cracks in window door and openings, supportmethod deflection, floor and ceiling metric synthetic radar apertureand (InSAR), finite element (FEM), which in turn inclination, the of deformation indicates in the required theetc.)
Summary
Academic Editor: Francesca CignaThe historical heritage of any nation is associated with buildings that testify to the cultural development and traditions of that country. Poland possesses small Romanesque churches and monumental Gothic, sophisticated Baroque, and wooden churches. These are a living testimony which has survived for hundreds of years despite the devastation of the country in many wars. One means of assessing structural stability is the analysis of the geometry of an object and its changes in terms of the study of structural deformation. This applies to both brick and wooden structures, the latter of which is a particular type of historical architecture preserved in Poland
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