SHEAR STRENGTHENING TECHNIQUE BY DFRCC U-SHAPED WINDING

• 大内 一

  大阪市立大学大学院 工学研究科

• 小笠原 哲也

  五洋建設株式会社技術研究所

• 角掛 久雄

  大阪市立大学大学院 工学研究科

Bibliographic Information

Other Title

• DFRCCのU字型巻き立てによるせん断補強

Abstract

 Shear loading test has been conducted with deep beam scale models in order to establish shear strengthening design procedure to existing beam by DFRCC (Ductile Fiber Reinforced Cementitious Composite) U-shaped winding. Finite element nonlinear analysis has been also carried out to explain not only test results but observed significant phenomena as well. Through comparison with past studies including rebar anchorage, steel plate and reinforced fiber sheet strengthening technologies, it is presented that further more shear capacity increase can be assured by the present construction joint technique with water jet treatment to existing beam. Practical design equation applicable even up to full winding is conclusively proposed focusing on additional shear capacity increase due to crack width control by DFRCC winding.

Journal

• Journal of Japan Society of Civil Engineers, Ser. E2 (Materials and Concrete Structures)

  Journal of Japan Society of Civil Engineers, Ser. E2 (Materials and Concrete Structures) 68 (4), 251-270, 2012

  Japan Society of Civil Engineers

Keywords

• DFRCC
• U wrap
• shear strengthening
• deep beam
• shear capacity assessment

Details

• CRID: 1390001205355422464
• NII Article ID: 130004726610
• DOI: 10.2208/jscejmcs.68.251
• ISSN: 21856567
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed