Original title: The Cloak Bridge in Český Krumlov – measuring of mechanical properties
Authors: Kloiber, Michal ; Sebera, V. ; Hrivnák, Jaroslav ; Tippner, J. ; Kunecký, Jiří
Document type: Papers
Conference/Event: International Conference on Timber Bridges, ICTB 2017 /3./, Skelleftea (SE), 20170626
Year: 2017
Language: eng
Abstract: Timber bridges are often exposed to harsh conditions of the environment. The exposure of the timber structure often leads to its deterioration. Standard test procedures to determine typical properties of wood cannot be used as there is the requirement of the minimum interference with the structure. Several non-destructive testing (NDT) methods for the determination of timber condition have been developed and are used. However, the results of NDT can be used to predict mechanical properties of timber elements only to a limited degree. Semi-destructive testing (SDT) methods are a compromise. In the paper a functional model of a device that allows for the measurement of conventional strength and modulus of deformation of timber in compression parallel to the grain is presented. The device is inserted to a bored hole and pushes the jaws apart with a small test jack loading the bore walls. This paper presents possible use of the device for surveys of timber bridges.
Keywords: mechanical properties; model of device
Project no.: DG16P02M026 (CEP), LO1219 (CEP)
Funding provider: GA MK, GA MŠk
Host item entry: Conference proceedings, ICTB 2017, 3rd International Conference on Timber Bridges, ISSN 0284-5172

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0273569

Permalink: http://www.nusl.cz/ntk/nusl-373464


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
Conference materials > Papers