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