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INNOVATIVE JOINT SYSTEM FOR SMALL FRAME STRUCTURAL CONNECTIONS

Artūrs Ķīsis

First published: 2019-06-20https://doi.org/10.5593/sgem2019/4.1/s17.033View metrics

Abstract

The aim of this investigation was to design and determinate the mechanical properties of innovative, externally invisable joints that can be assembled without the use of tools. The purpose of the paper is to determine the strength, stiffness and modulus of the elasticity of T-type mortise, loose tenon +/ glass fibre reinforced plastic clamping furniture and framing joints under tension, bending and share loads LVS EN 310:2001 [1]and Eurocode 5 [2] for wooden indoor and outdoor structural connections. Thesamples are made from European spruce (Picea abies Karst.) C 24 class timber LVS EN14081-2+A1:2016, [3] with relative wood moisture 18%. These samples are assembledwith water/ high temperature resistant polyurethane adhesive [4] Kleiberit PUR LVS EN301:2018 [4]. The European birch (Fagus sylvatica) is used for loose tenon for indoorjoints and the Sipo Mahogany (Entandrophragma utile) is used for outdoor joints [LVS EN 942:2007 [5]. Before gluing and practical tension, bending loads testing themoisture measurement is performed. The total number of samples are 35. The samplewidth and thickness is 95mm and 45mm. T-type loose tenon +/ glass fibre reinforcedplastic clamping furniture joints under tension are 10% stronger than T-type mortise andframing joints but in bending tests were the same results as others joints. The accuracyof the developed strength, stiffness, deformability and elasticity modulus models of theexamined joints was verified positively both by experimental studies and numericalcalculations.

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Publication details

Title
INNOVATIVE JOINT SYSTEM FOR SMALL FRAME STRUCTURAL CONNECTIONS
Authors
Artūrs Ķīsis
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Energy and Clean Technologies
Publisher
STEF92 Technology
Year
2019
Pages
255-262
SWS Citekey
Kisis201917255262
ISSN
1314-2704
ISBN
978-619-7408-83-6
Language
en
Publication type
Conference Paper
Keywords
innovative joint systemfurniture jointsindoor and outdoor structural connectionswood speciestensionshare and bending loadspolyurethane adhesive
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