Experimental Investigation of a Novel Circular Anchor System for Prestressed CFRP Plates


Tan C., Han S., Dai S.

10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering (CICE), İstanbul, Türkiye, 8 - 10 Aralık 2021, cilt.198, ss.2222-2232 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 198
  • Doi Numarası: 10.1007/978-3-030-88166-5_192
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.2222-2232
  • Anahtar Kelimeler: Presstressed CFRP, Anchor system, Circular wedge, Experimental tests, BEAMS, BEHAVIOR, FATIGUE, DESIGN, STEEL
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

Prestressed carbon fiber reinforced polymer (CFRP) system has been extensively studied and applied in strengthening industry. Various anchor systems have been developed to prevent premature failure of prestressed CFRP composites. Current prestress CFRP anchor system are classified as epoxy based and mechanical anchors. Most anchoring systems are designed for thin or narrow CFRP plates. The anchoring efficiency of large cross-section CFRP is very limited. It is imperative to develop an effective, easy installable anchor system for relative large cross-section CFRP plate. Under this background, a novel circular wedge anchoring system was developed and tested for popular 3 * 50 mm prestressed CFRP plate. This paper presents an experimental investigation of the proposed anchor system, mechanical performance and applicability are discussed and reported. Test result showed that material property, tooth pattern, and wedge angle have notable effect on failure modes and anchor capacity. The high capacity, small dimension, light weight and convenient installation characters of the proposed system contributes future promotion of prestressed CFRP strengthening technology.