Detailing, anchorage, and ductility of CFRP retrofitted reinforced concrete girders

Chunjiao Lin, Riyad Aboutaha

Research output: Contribution to conferencePaper

Abstract

Carbon Fiber Reinforced Polymer (CFRP) composites have proven to be the material of choice for repair and strengthening of existing concrete bridges. However, poor detailing limits the ductility of CFRP strengthened reinforced concrete girders. CFRP transverse and diagonal anchors have been used for preventing brittle premature bond failure of CFRP retrofitted girders. However, CFRP transverse and diagonal anchors are not practical for box girder bridges, where the girders are constructed adjacent to each other, which does not allow access to the sides of the girders. Metallic anchors with and without bottle neck elements have been investigated. This paper presents the various types of end anchors used for CFRP strengthened concrete bridge girders, as well in-depth investigation of the various factors affecting the ductility of CFRP strengthened concrete girders. Experimental studies along with field investigations and case studies will be presented.

Conference

ConferenceJoint Conference of the 12th International Symposium on Fiber Reinforced Polymers for Reinforced Concrete Structures, FRPRCS 2015 and the 5th Asia-Pacific Conference on Fiber Reinforced Polymers in Structures, APFIS 2015
CountryChina
CityNanjing
Period12/14/1512/16/15

Keywords

  • CFRP
  • CFRP anchors
  • Concrete bridges
  • Metallic anchorage
  • Rehabilitation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Materials Science(all)

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  • Cite this

    Lin, C., & Aboutaha, R. (2015). Detailing, anchorage, and ductility of CFRP retrofitted reinforced concrete girders. Paper presented at Joint Conference of the 12th International Symposium on Fiber Reinforced Polymers for Reinforced Concrete Structures, FRPRCS 2015 and the 5th Asia-Pacific Conference on Fiber Reinforced Polymers in Structures, APFIS 2015, Nanjing, China.