Techno Press
You logged in as Techno Press

Structural Monitoring and Maintenance
  Volume 7, Number 3, September 2020 , pages 233-259
DOI: https://doi.org/10.12989/smm.2020.7.3.233
 

Flexural performance of wooden beams strengthened by composite plate
Hassaine Daouadji Tahar, Rabahi Abderezak and Benferhat Rabia

 
Abstract
    Using bonded fiber-reinforced polymer laminates for strengthening wooden structural members has been shown to be an effective and economical method. In this research, properties of suitable composite materials (sika wrap), adhesives and two ways of strengthening beams exposed to bending moment are presented. Passive or slack reinforcement is one way of strengthening. The most effective way of such a strengthening was to place reinforcement laminates in the stretched part of the wooden beam (lower part in our case), in order to investigate the effectiveness of externally bonding FRP to their soffits. The model is based on equilibrium and deformations compatibility requirements in and all parts of the strengthened beam, i.e., the wooden beam, the sika wrap composite plate and the adhesive layer. The theoretical predictions are compared with other existing solutions. This research is helpful for the understanding on mechanical behaviour of the interface and design of the composite-wooden hybrid structures. The results showed that the use of the new strengthening system enhances the performance of the wooden beam when compared with the traditional strengthening system.
 
Key Words
    composite plate; interfacial stresses; wooden beam; strengthening, shear lag effect
 
Address
Hassaine Daouadji Tahar, Rabahi Abderezak and Benferhat Rabia: Department of civil engineering, Laboratory of Geomatics and sustainable development,
University of Tiaret, Algeria
 

Techno-Press: Publishers of international journals and conference proceedings.       Copyright © 2022 Techno Press
P.O. Box 33, Yuseong, Daejeon 305-600 Korea, Tel: +82-42-828-7996, Fax : +82-42-828-7997, Email: info@techno-press.com