The COST action FP1001 held WG1 and WG2 workshops on June 20th and
21st 2013 in Masaryk University in telc, Czech Republic. The joint WG
meeting has been organizedwith two sessions to give to MC members the opportunity to participate. The WG1
workshop is organized as a training session with 9 different stations.
After each station there will be a couple of minutes for the
participants to ask questions.
The WG2 workshop covered recent advances in the field of reinforcement and reflect the state-of-the-art.
Telc old town
Center of Excellence in Telc (CET)
The program can be downloaded here: WG1 meeting program & WG2 meeting programDownload:
Photos of the WG1 workshop: demonstrations in laboratory
- Annette Harte: Welcome/Introduction
- Wen-Shao Chang, UK: Reinforcement of timber columns and wall systems. In
this presentation, the state-of the-art with regard to improving the
buckling response of columns and repair methods for cracked columns is
presented. For timber walls systems, methods to improve ductility,
increase strength and stiffness and improve energy dissipation capacity
are described including reinforcing systems, prestressing systems,
novel connectors and smart materials.
- Robert Jockwer, Switzerland - Reinforcement of notches with self-tapping screws. Work
undertaken involved consideration of design rules for notches. Tests on
notches reinforced with self-tapping screws compared to those
reinforced with carbon fibre wrap. Both were effective in catering for
stress concentration at notch.
- Jorge Branco, Portugal: Analysis and strengthening of birdsmouth joints. Experimental
and numerical analysis of roof trusses with traditional carpentry
joints are described. Both unreinforced and reinforced connections are
considered. Internal bolts and stirrups found to be most effective
reinforcement solutions. Numerical modes for both static and dynamic
response are presented. The importance of modelling the joints as
semi-rigid connections is emphasized.
- Robert Widmann, Switzerland: Comparison of different strengthening techniques for delaminated glulam beams. In
this study, two different strengthening techniques for strengthening
delaminated glulam beams are presented. The techniques considered were
(i) gluing CFRP sheets to the sides of the beams at 45˚ to grain and
(ii) inserting self-tapping screws beams at 45˚ to grain. Both methods
proved effective in strengthening the beams but did not recover the
original stiffness. Work is ongoing.
- Tanja Marzi & Clara Bertolini, Italy: Nanotechnology and smart materials for reinforcement and protection of timber structures. The
use of nanostructured materials for the protection and rehabilitation
of wood structures is described. Some international case studies are
described. Results of tests on small scale timber joints are presented
which showed improvement in strength and stiffness for the
- Annette Harte (Irealnd) & Kay-Uwe Schober (Germany): FRP reinforcement of timber structures. Different
forms of FRP are described. Their application in the reinforcement of
existing structures is described using case studies. These included
reinforcement of beams in flexure, shear, bearing and tension
perpendicular to grain as well as in-plane strengthening of floor and
- Noelie Magniere, Switzerland: Residual load capacity of cracked members. A new project aimed at
developing reliable methods of assessing the residual load capacity of
timber members with cracks is described . Based on a study of
failure cases, the most frequently occurring failure geometry and
loading scenarios are glulam GL28h, 140mm wide, height/width ratio of
5, span 23m, in bending under uniform load. This is deemed to be the
most important case to study and numerical models will be developed for
- Teresa Artola Guijarro, Spain: A computer-based decision tool for choosing an appropriate reinforcement method. The
condition of historical wooden churches in Eastern Europe is described.
Significant resources are required to preserve these structures but
budgets are limited. A computer-based decision tools, MIVES, which
allows for objective prioritization of restoration projects is proposed
for these buildings. This tool has been used successfully in Havana,
- Dave Smedley, UK: Repair of fractured timber beams. Practical
demonstration of the reinforcement of timber connections and beams
using FRP rod/plate with different adhesive systems.
- Annette Harte, Ireland: Future Planning