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Mechanical performance of dovetail joint related to the global stiffness of timber roof structures

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F16%3A00445032" target="_blank" >RIV/68378297:_____/16:00445032 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/62156489:43410/16:43907969

  • Výsledek na webu

    <a href="http://link.springer.com/article/10.1617%2Fs11527-015-0651-1" target="_blank" >http://link.springer.com/article/10.1617%2Fs11527-015-0651-1</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1617/s11527-015-0651-1" target="_blank" >10.1617/s11527-015-0651-1</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Mechanical performance of dovetail joint related to the global stiffness of timber roof structures

  • Popis výsledku v původním jazyce

    This paper focuses on analyzing mechanical behavior of dovetail joints with certain geometries and manufacturing imperfections subjected to different loadings. Parameters such as tension stiffness, strength and rotational stiffness are verified using experimental tests. It was found that steeper angle between mortise-tenon contact areas provides significantly higher stiffness of the joint. Another part of the paper focuses on examining influence of manufacturing precision on mechanical performance of dovetail joints. It is found that small gaps up to 2 mm between mortise-tenon contact areas have negligible impact on dovetail performance while gaps of 5 mm may slightly influence joint’s performance by reducing joint’s tensional stiffness by 30 % and strength by 13 %. Furthermore, numerical models of full scale timber frames are constructed and dovetail joints in these models are assigned parameters resulting from experimental testing. Influence of dovetail’s tensional and rotational stiffness on global behavior of timber trusses is examined and it is concluded that rigid hinges carrying no moment can be used for modeling dovetail joints in full scale timber frames. Finally, it is concluded that precise analysis of dovetail’s parameters does not have to be performed when examining global quasistatic behavior of timber structures as these parameters have low impact on structural behavior of the whole construction. Tensional stiffness of dovetail can be used for estimating maximum allowable displacement of tenon for on-site health monitoring of historical dovetail connections.

  • Název v anglickém jazyce

    Mechanical performance of dovetail joint related to the global stiffness of timber roof structures

  • Popis výsledku anglicky

    This paper focuses on analyzing mechanical behavior of dovetail joints with certain geometries and manufacturing imperfections subjected to different loadings. Parameters such as tension stiffness, strength and rotational stiffness are verified using experimental tests. It was found that steeper angle between mortise-tenon contact areas provides significantly higher stiffness of the joint. Another part of the paper focuses on examining influence of manufacturing precision on mechanical performance of dovetail joints. It is found that small gaps up to 2 mm between mortise-tenon contact areas have negligible impact on dovetail performance while gaps of 5 mm may slightly influence joint’s performance by reducing joint’s tensional stiffness by 30 % and strength by 13 %. Furthermore, numerical models of full scale timber frames are constructed and dovetail joints in these models are assigned parameters resulting from experimental testing. Influence of dovetail’s tensional and rotational stiffness on global behavior of timber trusses is examined and it is concluded that rigid hinges carrying no moment can be used for modeling dovetail joints in full scale timber frames. Finally, it is concluded that precise analysis of dovetail’s parameters does not have to be performed when examining global quasistatic behavior of timber structures as these parameters have low impact on structural behavior of the whole construction. Tensional stiffness of dovetail can be used for estimating maximum allowable displacement of tenon for on-site health monitoring of historical dovetail connections.

Klasifikace

  • Druh

    J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

  • CEP obor

    AL - Umění, architektura, kulturní dědictví

  • OECD FORD obor

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/DF12P01OVV004" target="_blank" >DF12P01OVV004: Návrh a posuzování dřevěných tesařských spojů historických konstrukcí</a><br>

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Ostatní

  • Rok uplatnění

    2016

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    Materials and Structures

  • ISSN

    1359-5997

  • e-ISSN

  • Svazek periodika

    49

  • Číslo periodika v rámci svazku

    6

  • Stát vydavatele periodika

    NL - Nizozemsko

  • Počet stran výsledku

    13

  • Strana od-do

    2315-2327

  • Kód UT WoS článku

    000376646900020

  • EID výsledku v databázi Scopus

    2-s2.0-84931843998