Open Access
Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures
Charles E. Bakis,Damian I. Kachlakev,Morris Schupack,P. N. Balaguru,Duane J. Gee,Vistasp M. Karbhari,David Scott,Craig A. Ballinger,T. Russell Gentry,Howard S. Kliger,Rajan Sen,Lawrence C. Bank,Arie Gerritse,James G. Korff,Mohsen Shahawy,Karl Gillette,Michael W. Lee,Carol K. Shield,Brahim Benmokrane,William J. Gold,Ibrahim M. Mahfouz,Khaled Soudki,Gregg J. Blaszak,Charles H. Goodspeed,Henry N. Marsh,R. Taerwe,Gordon L. Brown,F. Grace,Orange S. Marshall,Vicki L. Brown,Mark F. Green,Houssam Toutanji,Thomas I. Campbell,Mark E. Greenwood,Ayman Mosallam,Taketo Uomoto,Charles W. Dolan,Doug D. Gremel,Antoine E. Naaman,Miroslav Vadovic,Michael S. Guglielmo,Antonio Nanni,David R. Vanderpool,Rami M. Elhassan,Issam E. Harik,Kenneth W. Neale,Milan Vatovec,Salem S. Faza,Mark P. Henderson,Stephanie L. Walkup,Edward R. Fyfe,Bohdan N. Horeczko,Max L. Porter,David White,David M. Gale,Srinivasa L. Iyer,Sami H. Rizkalla,John P. Busel +57 more
- pp 1-154
TLDR
The Emerging Technology Series as mentioned in this paper is a series of information and recommendations based on available test data, technical reports, limited experience with field applications, and the opinions of committee members, with a focus on the development and appropriate use of new and emerging technologies.Abstract:
*Co-chairs of the subcommittee that prepared this document. Note: The committee acknowledges the contribution of associate member Paul Kelley. ACI encourages the development and appropriate use of new and emerging technologies through the publication of the Emerging Technology Series. This series presents information and recommendations based on available test data, technical reports, limited experience with field applications, and the opinions of committee members. The presented information and recommendations, and their basis, may be less fully developed and tested than those for more mature technologies. This report identifies areas in which information is believed to be less fully developed, and describes research needs. The professional using this document should understand the limitations of this document and exercise judgment as to the appropriate application of this emerging technology.read more
Citations
More filters
Journal ArticleDOI
Comparative analysis of natural fiber reinforced polymer and carbon fiber reinforced polymer in strengthening of reinforced concrete beams
TL;DR: In this paper, the performance of natural fiber reinforced polymer (NFRP) and carbon fiber reinforced polypropylene (CFRP), in the flexural strengthening of RC beams was compared.
Journal ArticleDOI
Fire behaviour of thermally insulated RC beams strengthened with NSM-CFRP strips: Experimental study
J.P. Firmo,João R. Correia +1 more
Abstract: This paper presents the results of fire resistance tests on reinforced concrete (RC) beams flexurally strengthened with carbon fibre reinforced polymer (CFRP) strips installed according to the near surface mounted (NSM) technique using two different adhesives. The beams were simultaneously subjected to a service load and the ISO 834 standard fire. Different fire protection schemes were studied, comprising a thinner insulation layer along the bottom soffit of the beams and a thicker one at the CFRP anchorage zones. The main objectives of this paper were (i) to understand in further depth the fire behaviour of NSM-strengthened RC beams, in particular the structural effectiveness of the strengthening system during fire, (ii) to evaluate the efficiency of the above-mentioned fire protection strategy in extending the CFRP mechanical contribution during fire, and (iii) to compare the fire performance of the NSM-strengthening system with that of the alternative externally bonded reinforcement (EBR) technique, recently investigated under similar test conditions. The results obtained showed that using the adopted insulation schemes (i.e., thicker insulation at the anchorage zone and thinner insulation in the current zone), even after the CFRP-concrete bond is highly damaged in the central zone of the beams, the strengthening system is able to retain its structural effectiveness through a cable mechanism: for insulation thicknesses of 25 mm (current zone) and 50 mm (anchorage zones), the fire resistance of the strengthening system was extended up to 114 min. The loss of effectiveness of the CFRP system occurred when the average temperature in the adhesive at the CFRP anchorage zones attained values ranging from 2.2 to 5.6 times its glass transition temperature (Tg). The comparison with the EBR-strengthened beams confirmed the much better performance of the NSM strengthening.
Journal ArticleDOI
Experimental evaluation of bonded overlay and NSM GFRP bar strengthening on flexural behavior of precast prestressed hollow core slabs
TL;DR: In this paper, the authors studied the flexural behavior of hollow core slabs and failure modes with hybrid strengthening techniques including bonded overlay and near surface mounted (NSM) glass fiber reinforced polymer (GFRP) bars.
Journal ArticleDOI
Kenaf Fiber Reinforced Polymer Composites for Strengthening RC Beams
N. A. K. Hafizah,Muhammad Aamer Rafique Bhutta,M. Y. Jamaludin,M. H. Warid,Mohammad Ismail,M. S. Rahman,I. Yunus,M. Azman +7 more
TL;DR: In this paper, the structural behavior of reinforced concrete (RC) beams externally strengthened with various types of kenaf fiber reinforced polymer composite laminates with 50% fiber volume content was investigated.
Journal ArticleDOI
Development of bond strength model for CFRP-to-concrete joints at high temperatures
TL;DR: In this article, an analytical solution is used to derive the two-parameter bond-slip relationship of carbon fiber reinforced polymer (CFRP) to concrete bonded joints at high temperatures.
References
More filters
Journal ArticleDOI
Theoretical stress strain model for confined concrete
TL;DR: In this paper, a stress-strain model for concrete subjected to uniaxial compressive loading and confined by transverse reinforcement is developed for concrete sections with either spiral or circular hoops, or rectangular hoops with or without supplementary cross ties.
MonographDOI
Seismic Design of Reinforced Concrete and Masonry Buildings
T. Paulay,M. J. N. Priestly +1 more
TL;DR: In this paper, the causes and effects of earthquakes: Seismicity, Structural Response, Seismic Action, and Seismical Action in Member Design principles of member design.
Book
Seismic Design and Retrofit of Bridges
TL;DR: In this article, the authors focus on designing adequate displacement and ductility capacity into new bridges, with less significance placed on strength, where a strength hierarchy is established in a bridge to ensure that damage is controllable and occurs only where the designer intends.
Journal ArticleDOI
Fiber-Reinforced Polymer Composites for Construction—State-of-the-Art Review
Charles E. Bakis,Lawrence C. Bank,Vicki L. Brown,Edoardo Cosenza,Julio F. Davalos,John J. Lesko,Atsuhiko Machida,Sami H. Rizkalla,Thanasis Triantafillou +8 more
TL;DR: A concise state-of-the-art survey of fiber-reinforced polymer composites for construction applications in civil engineering is presented in this article, which includes a historical review, the current state of the art, and future challenges.
Fiber-Reinforced Polymer Composites for Construction—State-of-the-Art Review
Charles E. Bakis,Lawrence C. Bank,Vicki L. Brown,Edoardo Cosenza,Julio F. Davalos,John J. Lesko,Atsuhiko Machida,Sami H. Rizkalla,Thanasis Triantafillou +8 more
TL;DR: A concise state-of-the-art survey of fiber-reinforced polymer composites for construction applications in civil engineering is presented in this article, which includes a historical review, the current state of the art, and future challenges.
Related Papers (5)
Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures (ACI 440.2R-02)
K. Soudki,T. Alkhrdaji +1 more
Externally bonded FRP reinforcement for RC structures
Thanasis Triantafillou,Stijn Matthys,Katrien Audenaert,György L. Balázs,M. Blaschko,Hendrik Blontrock,Christoph Czaderski,Emmanuelle David,Angello Di Tomasso,William Duckett,Dick Hordijk,Michael Leeming,Heinz Meier,Giorgio Monti,Richard Moss,Uwe Neubauer,Roland Niedermeier,Björn Täljsten,G. Zehetmaier,Konrad Zilch +19 more