NDLI: Pull-out behaviour of steel rods bonded into timber

Content Provider	Springer Nature Link
Author	Broughton, J. G. Hutchinson, A. R.
Copyright Year	2001
Abstract	Connections for timber structures using concealed bonded-in rods offer one possible solution to the development of more efficient joining methods. However the importance of certain basic joint characteristics, and the influence of adhesive type and properties, are not yet fully understood and as such design criteria are lacking. This paper describes a comprehensive experimental and numerical investigation into the fundamental material and joint geometry characteristics of rods bonded in to timber. The adhesive type and performance are both considered, along with test configuration and joint parameters that included rod embedment length, rod diameter, annular bondline thickness, multiple rods and rod spacing. A novel approach that involved end-profiling of the bond area was also investigated. It was found that epoxy adhesives out-performed all other types investigated, and pull-out strengths can be significantly improved through careful selection and optimisation of the joint geometry.L'assemblage des structures en bois de construction au moyen de tiges en acier enfoncées à l'intérieur du bois offre une solution possible à l'élaboration de méthodes plus efficaces pour relier ces types de structures. Cependant, l'importance de certaines caractéristiques de base des joints et l'influence du type et des propriétés de l'adhésif ne sont pas encore entièrement assimilées: il manque des critères de conception. Cet article décrit une recherche expérimentale et numérique sur les caractéristiques foundamentales des matériaux ainsi que sur la géométrie d'assemblage des tiges en acier fixées au bois de construction. Le type et la performance de l'adhésif ont été considérés, ainsi que le mode d'essai (tiges simple, multiples et espacement des tiges multiples) et les paramètres des joints comprenant: le diamètre, la longueur d'enfoncement et l'épaisseur annulaire d'adhérence de la tige. Une nouvelle approche qui mettait en application une méthode visant à profiler l'aire d'adhérence des tiges a également été étudiée. On a constaté que les adhésifs époxydes ont surpassé tous les autres types étudiés, et leur résistance peut être améliorée de façon significative par la sélection et l'optimisation de la géométrie d'assemblage.
Starting Page	100
Ending Page	109
Page Count	10
File Format	PDF
ISSN	13595997
Journal	Materials and Structures
Volume Number	34
Issue Number	2
e-ISSN	18716873
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2001-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Theoretical and Applied Mechanics Structural Mechanics Mechanical Engineering Operating Procedures, Materials Treatment Civil Engineering Building Materials
Content Type	Text
Resource Type	Article
Subject	Building and Construction Mechanics of Materials Materials Science Civil and Structural Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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