Advances on the Behavior Characterization of FRP-Anchored Carbon Fiber-Reinforced Polymer (CFRP) Sheets Used to Strengthen Concrete Elements

Strengthening concrete structures using FRP composites is a commonly considered technology in many practical situations. The success of the strengthening intervention largely depends on adequate bond between FRP sheets and the concrete substrate. In recent years, techniques to anchor FRP sheets in applications where sheets must develop strength in a short length have been proposed. One of these techniques includes use of FRP anchors embedded into the concrete substrate and forming part of the composite strengthening system. This paper presents the results of studies conducted recently at the University of Massachusetts Amherst to advance the understanding on the behavior of FRP anchored systems.

[1]  Claudio Modena,et al.  Experimental Study on Bond Behavior between Concrete and FRP Reinforcement , 2008 .

[2]  William E. Piper,et al.  Editor's Note 3 , 1999 .

[3]  O. Bayrak,et al.  Design Considerations of Carbon Fiber Anchors , 2008 .

[4]  Scott T Smith,et al.  FRP-strengthened RC beams. II: assessment of debonding strength models , 2002 .

[5]  Michael E. Kreger,et al.  INCREASING FLEXURAL CAPACITY OF REINFORCED CONCRETE BEAMS USING CARBON FIBER-REINFORCED POLYMER COMPOSITES , 2003 .

[6]  K. Neale,et al.  Transfer Lengths and Bond Strengths for Composites Bonded to Concrete , 1999 .

[7]  Antonio Nanni,et al.  Performance of Two Anchor Systems of Externally Bonded Fiber-Reinforced Polymer Laminates , 2008 .

[8]  Adel ElSafty,et al.  Investigation of Likelihood of Cracking in Reinforced Concrete Bridge Decks , 2013 .

[9]  Emad L. Labib,et al.  Shear Cracking of Prestressed Girders with High Strength Concrete , 2013, International Journal of Concrete Structures and Materials.

[10]  Michael J. Chajes,et al.  Bond and Force Transfer of Composite-Material Plates Bonded to Concrete , 1996 .

[11]  Scott T Smith,et al.  FRP-strengthened RC beams. I: review of debonding strength models , 2002 .

[12]  U. Ebead,et al.  Studies on Mechanically Fastened Fiber-Reinforced Polymer Strengthening Systems , 2009 .

[13]  Geoffrey N. McGuirk Development of Anchorage System for Frp Strengthening Applications Using Integrated Frp Composite Anchors , 2011 .

[14]  Jian fei Chen,et al.  Experimental study on FRP-to-concrete bonded joints , 2005 .

[15]  Togay Ozbakkaloglu,et al.  Tensile Behavior of FRP Anchors in Concrete , 2009 .

[16]  S. Popovics A numerical approach to the complete stress-strain curve of concrete , 1973 .

[17]  S. Breña,et al.  Experimental Behavior of Carbon Fiber-Reinforced Polymer (CFRP) Sheets Attached to Concrete Surfaces Using CFRP Anchors , 2010 .

[18]  Jin-Guang Teng,et al.  Bond-slip models for FRP sheets/plates bonded to concrete , 2005 .

[19]  Christian Carloni,et al.  Width effect in the interface fracture during shear debonding of FRP sheets from concrete , 2007 .

[20]  Maria M. Lopez,et al.  Experimental Characterization of Concrete-Epoxy Interfaces , 2008 .

[21]  P.C.J. Hoogenboom,et al.  STRINGER PANEL MODEL FOR STRUCTURAL CONCRETE DESIGN , 1996 .

[22]  C. Mazzotti,et al.  A new single-shear set-up for stable debonding of FRP–concrete joints , 2009 .

[23]  P. Bowen,et al.  Changes in portlandite morphology with solvent composition: Atomistic simulations and experiment , 2011 .

[24]  Kasumassa Nakaba,et al.  BOND BEHAVIOR BETWEEN FIBER-REINFORCED POLYMER LAMINATES AND CONCRETE , 2001 .

[25]  Usama Ebead,et al.  Flexural Strengthening of RC Beams with Externally Bonded CFRP Systems: Test Results and 3D Nonlinear FE Analysis , 2008 .