THE TECNARIA SYSTEM: tested and certified according to Eurocode 5
(EN1995-1-1) is a
standard that defines the
regulations pertaining to the design, calculation and execution of timber structures. It is
shared by the countries belonging to the European Community and represents an alternative to
the various national regulations. It is used in connection with other European standards that
establish material characteristics and testing
TECNARIA was the first company in Europe to subject its
connectors to accurate experimental analysis according to the
standards quoted by Eurocode 5.
Stiffness and strength characteristics of the connector fastened
to timber have been experimentally verified at:
- CNR of Florence - Istituto per la Ricerca sul Legno (Wood
Research Institute): "Evaluation of the behaviour of
Tecnaria connectors in compliance with Eurocode 5 standards"
- Experimental Laboratory for Building Material Testing of
the Faculty of Engineering - Institute of Tectonics - University
of Padua: "Evaluation of the behaviour of Tecnaria
connectors in compliance with Eurocode 5 standards" [March 1995,
September 1995, June 1996].
- FC BA Institut Technologique (10, avenue de Saint-Mandé
75012 Paris) Dossier Technique Connecteurs pour planchers mixtes
bois – béton (Connectors for composite timber and concrete
floors). Juin 2008.
- CSTB Centre Scientifique et Technique du Bŕtiment –
Avis Technique 3/09-603 Plancher mixte bois-béton – Composite
wood-concrete floor TECNARIA Juin 2009
The above tests were
conducted in compliance with the following standards:
1995-1-1 Eurocode 5. Design of timber structures.
EN 26891 Timber structures. Joints made with mechanical
fasteners. General principles for the determination of strength
and deformation characteristics.
EN 28970 Timber structures. Testing of joints made with
mechanical fasteners. Requirements for wood density.
EN 338 Structural timber. Strength classes.
EN 380/00 Timber structures. Test methods. General
principles for static load tests.
The Tecnaria connectors have also been tested at:
University of Trieste - Department of Civil Engineering: "Evaluation of the
short- and long-term behaviour of timber-concrete mechanical connections".
A study of the long-term behaviour of the Tecnaria connection
system in composite timber-concrete structures in conditions of
constant humidity and temperature (creep or viscosity tests) and
in conditions of variable humidity, under the action of a
service load with plain and light-weight concrete. Test term: 9
months [September 2000].
The connectors have also been subjected to experimental testing
at: Universität Leipzig, Institut für Massivbau und
Baustofftechnologie (University of Leipzig - German Federal
Republic) "Push-out tests with Tecnaria stud connectors in
timber-Light weight aggregate concrete composite structures"
Universidade do Minho - Departamento de Engenharia Civil
Portugal "Programa de ensaios em vigas mistras madeira-betăo".
In June 2009 Tecnaria has received the technical certification
Avis – Technique. Tecnaria products and the whole design
method for composite timber and concrete floors have been
approved by independent organisation CSTB, Centre
Scientifique et Tecnique du Bâtiment (French Scientific and
Technical Centre for Building), member of EOTA (European
organisation for Technical Approvals)
The dowel and crampons connector is a product covered by