Lapped scarf joint with inclined faces and wooden dowels: Experimental and numerical analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F15%3A43906397" target="_blank" >RIV/62156489:43410/15:43906397 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378297:_____/15:00443183

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0141029615001807" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0141029615001807</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.engstruct.2015.03.036" target="_blank" >10.1016/j.engstruct.2015.03.036</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Lapped scarf joint with inclined faces and wooden dowels: Experimental and numerical analysis

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Lapped scarf joint with inclined faces and wooden dowels: Experimental and numerical analysis

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

AL - Umění, architektura, kulturní dědictví

OECD FORD obor

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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)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Engineering Structures

ISSN

0141-0296

e-ISSN

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Svazek periodika

94

Číslo periodika v rámci svazku

1 July

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

000353861200001

EID výsledku v databázi Scopus

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