Preliminary communication

Parametric analysis of large diameter mechanical fastener in reinforced glulam

Krunoslav Pavković orcid.org/0000-0002-6669-4020 ; Department of Civil Engineering, Polytechnic of Zagreb, Av. Većeslava Holjevca 15, 10010 Zagreb, Croatia
Vlatka Rajčić ; Faculty of Civil Engineering, University of Zagreb, Fra A. Kačića-Miošića 26, 10 000 Zagreb, Croatia
Dean Čizmar ; Department of Civil Engineering, Polytechnic of Zagreb, Av. Većeslava Holjevca 15, 10010 Zagreb, Croatia

Abstract

Research deals with a 49 mm in diameter mechanical fastener in reinforced laminated timber, to which a load perpendicular to grain is applied. Influence of glass fibre textile to reinforcing connection zone on the joint mechanical properties was carried out. The experimental tests were divided in two stages: first stage was carried out on locally reinforced and second on non-reinforced timber specimens. Finite element models were made in software package Abaqus/CEA ver. 6.10. UMAT subroutine and surface-based cohesive behaviour were used for modelling complex timber behaviour. Results obtained by finite element model and experimental tests were shown and compared for non-reinforced and reinforced specimens with 900 g/m2 of textile in connection zone. Also, parametric finite element model analyses were carried out for reinforced specimens with textile quantity between 0 ÷ 900 g/m2 in the connection zone. Research results have shown that the application of textile in connection zone increases maximum force and yield force even in the smallest quantity.

Keywords

glulam (glued laminated timber); large diameter fastener; mechanical fastener; reinforced timber joint; textile reinforcement; UMAT subroutine

Hrčak ID:

126080

URI

https://hrcak.srce.hr/126080

Publication date:

15.8.2014.

Article data in other languages: croatian

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