Strengthening of deteriorated RC bridge slabs by FRP sheets bonded in grid pattern

H. K. Chai, H. Onishi, S. Matsui

Research output: Contribution to conferencePaperpeer-review

Abstract / Description of output

In the rehabilitation of reinforced concrete (RC) infrastructures, external strengthening by bonding FRP sheet is widely applied. In this study, the fatigue durability of bridge slabs strengthened with aramid fiber reinforced polymer (AFRP) and carbon fiber reinforced polymer (CFRP) sheets is investigated by fatigue tests using the wheel running machine. Strengthening performance is evaluated by comparing the lifespan of the strengthened slabs obtained experimentally with that of the unstrengthened slabs, which can be acquired theoretically from relevant S-N relations. Generally, significant extension of lifespan as results of the strengthening by both AFRP and CFRP can be confirmed.

Original languageEnglish
Pages173-180
Number of pages8
Publication statusPublished - 2017
Event9th International Conference on Inspection, Appraisal, Repairs and Maintenance of Structures - Fuzhou, China
Duration: 20 Oct 200521 Oct 2005

Conference

Conference9th International Conference on Inspection, Appraisal, Repairs and Maintenance of Structures
Country/TerritoryChina
CityFuzhou
Period20/10/0521/10/05

Keywords / Materials (for Non-textual outputs)

  • Fatigue durability
  • FRP
  • Lifespan extension
  • RC bridge slabs
  • Strengthening

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