Strengthening timber beams with near surface mounted carbon fiber reinforced polymer rods

Qingfeng Xu*, J. F. Chen, Lei Zhu, Xiangmin Li, Fuwen Zhang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Many timber structures may require strengthening due to either decay and aging or an increase of load. This paper presents an experimental study in which eleven timber beams were tested, including three unstrengthened reference beams and eight beams strengthened with NSM CFRP bars. The test parameters include the position of NSM (tensile face or the bottom of the sides), the number of CFRP bars (1 or 2), and additional anchorage of NSM CFRP bars (steel wire U anchors or CFRP U strips). The test results show that the ultimate flexural strength of the timber beams were increased by 14%∼85% with an average of 47% due to NSM CFRP bar strengthening. Their deflection corresponding to the peak load was increased by 33% in average.

Original languageEnglish
Title of host publicationProceedings of the 6th International Conference on FRP Composites in Civil Engineering, CICE 2012
PublisherInternational Institute for FRP in Construction (IIFC)
Publication statusPublished - 2012
Externally publishedYes
Event6th International Conference on FRP Composites in Civil Engineering, CICE 2012 - Rome, Italy
Duration: 13 Jun 201215 Jun 2012

Conference

Conference6th International Conference on FRP Composites in Civil Engineering, CICE 2012
CountryItaly
CityRome
Period13/06/201215/06/2012

Keywords

  • CFRP bars
  • Near surface mounted (NSM) rods
  • Strengthening
  • Timber beams

ASJC Scopus subject areas

  • Polymers and Plastics
  • Civil and Structural Engineering

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