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Measuring strength and modulus of deformability of wood in compression parallel to the grain in a bored hole by a small jack\n
Kloiber, Michal
The publication is dedicated to the methodical description of the technical solution and the measurement of strength and modulus of deformability of wood in compression parallel to the grain in a bored hole by pushing apart grips of a small jack and loading the walls of the hole. The methodology presents the principles of the device usage and measurement result evaluation for the purposes of surveys of historical monuments and projects for their rescue or appreciation. Currently, there is no other method allowing determination of mechanical properties of wood, such as strength and modulus of elasticity in compression parallel to the grain, directly in the field without sampling. Therefore, the research was oriented to the development of a simple method, practically applicable for the purpose of structural-technical surveys of timber structures, in particular historical monuments. The resulting methodology meets the protection of the cultural heritage standards, in particular the requirement to minimize interference with the original material, while retaining high reliability of the determined wood mechanical properties of wood.
Fulltext: content.csg - Download fulltextPDF
Plný tet: 0453514_2015_Kloiber_Mereni_pevnosti_a_modulu_pretvarnosti_dreva_CM_NAKI-001 - Download fulltextPDF

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