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Lapped scarf joint with inclined faces and wooden dowels: Experimental and numerical analysis
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SYSNO ASEP 0443183 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Lapped scarf joint with inclined faces and wooden dowels: Experimental and numerical analysis Author(s) Arciszewska-Kędzior, Anna (UTAM-F)
Kunecký, Jiří (UTAM-F) RID, SAI, ORCID
Hasníková, Hana (UTAM-F) RID, SAI, ORCID
Sebera, V. (CZ)Number of authors 4 Source Title Engineering Structures. - : Elsevier - ISSN 0141-0296
Roč. 94, July (2015), s. 1-8Number of pages 8 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords timber joint ; wooden-dowels ; full-scale experiments ; FEM ; failure criterion Subject RIV AL - Art, Architecture, Cultural Heritage R&D Projects DF12P01OVV004 GA MK - Ministry of Culture (MK) UT WOS 000353861200001 EID SCOPUS 84925955138 DOI 10.1016/j.engstruct.2015.03.036 Annotation Experimental and numerical analysis were performed to investigate the mechanical behavior of a lapped scarf joint with inclined contact faces and wooden dowels which is a commonly used connection for repairing damaged beams in historical structures. This study aimed to define and suggest most effective parameters that influence this particular joint’s performance. Experimental testing was done on the full scale specimens. Four- and two-dowel-joints with half-beam-width laps and with 3/8-beam-width laps were tested. Experimental data analysis concluded that the width of the lap element should be kept as half of the beam width, therefore this type of joint was further analyzed using numerical approach. Finite element models were constructed for joints with four, two, and three wooden dowels. These models and theoretical criterion according to EC5 were used to select a number of dowels used for connection, joint’s length and location. It was concluded that a lapped scarf joint with 3 wooden dowels that is 1.38 m long and located at 1/5 L from support is the most efficient joint (in terms of strength, stiffness, and manufacturing) for the beam-end reparation; however, location of joint must consider both preservation of the most of the original material and the extent of damage. Numerical model can be used for designing joints with different parameters in beams with different dimensions. It was also calculated that a jointed beam provides between 65% and 75% of the original beams’ strength while the linear stiffness is not influenced significantly. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2016 Electronic address http://www.sciencedirect.com/science/article/pii/S0141029615001807
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