REINFORCED CONCRETE JACKETING-INTERFACE INFLUENCE ON MONOTONIC LOADING RESPONSE

Jacketing is one of the most frequently used techniques to strengthen reinforced concrete (RC) columns. Preparing the interface prior to jacketing consists of increasing the surface roughness, applying a bonding agent, and eventually steel connectors. This article reports on a study that analyzed the influence of the interface treatment on the structural behavior of columns strengthened by RC jacketing. In the study, seven column-footing, full-scale models were built. Three months later, the columns were strengthened by RC jacketing after their surfaces were prepared using different techniques. Testing under monotonic loading showed that all models behaved monolithically independent of which interface preparation method was used, with the exception of one model (in which the nonadherence of the jacket was provoked). The resistance of the strengthened models was considerably higher than that of the original column and slightly higher than that of the monolithic model. The stiffness of the strengthened models was considerably higher than that of the original column.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Julio, ENBS
  • Branco, FAB
  • Silva, V D
• Publication Date: 2005-3

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 252-257
• Serial:
  • ACI Structural Journal
  • Volume: 102
  • Issue Number: 2
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Adhesion; Columns; Interfaces; Jacketing (Strengthening); Load tests; Monoliths; Reinforced concrete; Resistance (Mechanics); Stiffness; Surface preparation
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00987530
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 17 2005 12:00AM