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Research Report on Condition Assessment of Wood-destroying Damage to Tie Beams, Threshold Beams, Struts and Wall Plates of the Belfry Structure of the White Tower in Hradec Králové
Kloiber, Michal ; Hrivnák, Jaroslav
The subject of the research report was to assess the condition of and identify the range of wood-destroying damage to the tie beams, threshold beams, struts and wall plates of the belfry structure in the White Tower in Hradec Králové. The report focused on locating critical points, classifying the degree of damage, determining the extent of concealed attack by the means of non-destructive devices and drawing the results obtained in the drawing documentation. The research report was based on direct and mediated visual observation using an endoscope and mainly on measurements taken using a resistance microdrilling device and also on ascertainment of mechanical properties of wood using expanding jaws in the borehole. Based on the results, a rehabilitation measure was designed and elements designed for structural rehabilitation were indicated in the drawing documentation.

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