scispace - formally typeset
Search or ask a question
Journal ArticleDOI

Experimental performances of RC beams strengthened with FRP materials

01 Sep 2010-Construction and Building Materials (Elsevier)-Vol. 24, Iss: 9, pp 1547-1559
TL;DR: In this paper, the results of an experimental program on Reinforced Concrete (RC) beams externally strengthened with carbon Fibre Reinforced Plastic (FRP) laminates and Near Surface Mounted (NSM) bars under monotonic and cyclic loads, the latter ones characterized by a low number of cycles in the elastic and post-elastic range.
About: This article is published in Construction and Building Materials.The article was published on 2010-09-01. It has received 233 citations till now. The article focuses on the topics: Fibre-reinforced plastic & Beam (structure).
Citations
More filters
Journal ArticleDOI
TL;DR: In this paper, the authors present a review on historic and recent developments of fiber-reinforced polymer (FRP) composites in strengthening and rehabilitation of civil engineering applications, highlighting some of the classic and modern experimental, numerical and analytical studies associated with the integration of FRP into buildings, among other structures.

209 citations

Journal ArticleDOI
TL;DR: In this paper, a review of fiber reinforced polymer (FRP) design, matrix, material properties, applications, and serviceability performance is presented for the repair, strengthening, and retrofit of concrete structures in the construction industry.

180 citations

Journal ArticleDOI
TL;DR: In this paper, the authors presented experimental research on reinforced concrete (RC) beams with external flexural and flexural-shear strengthening by fibre reinforced polymer (FRP) sheets consisting of carbon FRP and glass FRP (GFRP).
Abstract: This paper presents experimental research on reinforced concrete (RC) beams with external flexural and flexural–shear strengthening by fibre reinforced polymer (FRP) sheets consisting of carbon FRP (CFRP) and glass FRP (GFRP). The work carried out has examined both the flexural and flexural–shear strengthening capacities of retrofitted RC beams and has indicated how different strengthening arrangements of CFRP and GFRP sheets affect behaviour of the RC beams strengthened. Research output shows that the flexural–shear strengthening arrangement is much more effective than the flexural one in enhancing the stiffness, the ultimate strength and hardening behaviour of the RC beam. In addition theoretical calculations are developed to estimate the bending and shear capacities of the beams tested, which are compared with the corresponding experimental results.

174 citations


Additional excerpts

  • ...Many studies [1–4,7–10] have been undertaken on the RC beams retrofitted in flexural by FRP sheets through experimental, finite element and analytical approaches....

    [...]

  • ...The studies have shown that the beams strengthened with FRP in flexural strengthening would avoid the debonding failure mode when a carefully designed anchorage is applied [1,7,10–13], which gives a good flexural performance in terms of strength and ductility....

    [...]

Journal ArticleDOI
TL;DR: A systematic review of the state of the art on basalt fibers, basalt-based composite materials and their applications in civil engineering field, by tracing main available evidence and highlighting perspective aspects and open problems is presented in this article.

168 citations

Journal ArticleDOI
TL;DR: In this paper, the authors investigate the variation of mechanical properties in terms of the elastic modulus and tensile strength of composite carbon (C), composite glass (G) sheets and their hybrid combinations (CG) when exposed to different temperatures, ranging from 25°C to 300°C.

132 citations


Additional excerpts

  • ...Research has shown a tremendous increase in the load carrying capacity of such members when strengthened with such FRP materials at controlled room temperature [8–14]....

    [...]

References
More filters
01 Jan 2002
TL;DR: 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.

2,963 citations

Proceedings ArticleDOI
18 Apr 2005
TL;DR: In this article, the authors report on the key features of the "Guiding and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures" issued by the American Concrete Institute (ACI).
Abstract: This paper reports on the key features of the “Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures” issued by the American Concrete Institute (ACI). Fiber reinforced polymers (FRP) systems have emerged as an alternative to traditional materials and techniques for the strengthening of existing concrete structures to resist higher design loads, correct deterioration-related damage, design or construction error, or increase ductility. Structural elements strengthened with externally bonded FRP systems include beams, slabs, columns, walls, joints/connections, chimneys and smokestacks, vaults, domes, tunnels, silos, pipes, and trusses. Externally bonded FRP systems have also been used to strengthen masonry, timber, steel, and cast-iron structures.

1,293 citations

Journal ArticleDOI
TL;DR: In this paper, the authors present a review of current anchorage strength models for both fiber-reinforced polymer (FRP) and steel-to-concrete bonded joints under shear and propose a new simple and rational model based on an existing fracture mechanics analysis and experimental observations.
Abstract: External bonding of steel plates has been used to strengthen deficient reinforced-concrete structures since the 1960s. In recent years, fiber-reinforced polymer (FRP) plates have been increasingly used to replace steel plates due to their superior properties. A key issue in the design of an effective retrofitting solution using externally bonded plates is the end anchorage strength. This paper first presents a review of current anchorage strength models for both FRP-to-concrete and steel-to-concrete bonded joints under shear. These models are then assessed with experimental data collected from the literature, revealing the deficiencies of all existing models. Finally, a new simple and rational model is proposed based on an existing fracture mechanics analysis and experimental observations. This new model not only matches experimental observations of bond strength closely, but also correctly predicts the effective bond length. The new model is thus suitable for practical application in the design of FRP-to-concrete as well as steel-to-concrete bonded joints.

1,050 citations

Journal ArticleDOI
TL;DR: In this article, the authors provide a critical review of existing research in this area, identifies gaps of knowledge, and outlines directions for further research, including the optimization of construction details, models for the bond behaviour between NSM fiber-reinforced polymer (FRP) and concrete, reliable design methods for flexural and shear strengthening, and the maximization of the advantages of this technique.
Abstract: Near-surface mounted (NSM) fiber-reinforced polymer (FRP) reinforcement is one of the latest and most promising strengthening techniques for reinforced concrete (RC) structures. Research on this topic started only a few years ago but has by now attracted worldwide attention. Issues raised by the use of NSM FRP reinforcement include the optimization of construction details, models for the bond behaviour between NSM FRP and concrete, reliable design methods for flexural and shear strengthening, and the maximization of the advantages of this technique. This paper provides a critical review of existing research in this area, identifies gaps of knowledge, and outlines directions for further research.

725 citations

Journal ArticleDOI
TL;DR: In this paper, the Chen and Teng bond strength model is combined with a simple section analysis for predicting the strength of beams and slabs which fail by intermediate crack-induced debonding.

578 citations

Related Papers (5)