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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 743A Simple Design-Oriented Model for FRP-Confined...

A Simple Design-Oriented Model for FRP-Confined High-Strength Concrete

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Abstract:

This paper presents a study on the axial compressive behavior of fiber reinforced polymer (FRP)-confined high-strength concrete (HSC). A large experimental test database assembled from the published literature was used to investigate and quantify factors influencing the compressive behavior of FRP-confined HSC. The database consisted of 976 test data having unconfined concrete strength ranging from 6.2 to 169.7MPa. Based on the analysis results of the database, it was found that the threshold confinement stiffness increases significantly with an increase in concrete strength, which in turn adversely affects the strength enhancement of confined concrete. It was also observed that the hoop rupture strain of FRP shell decreases with an increase in concrete strength. Existing confinement models that are applicable to FRP-confined HSC were assessed using the database. Finally, a new simple design-oriented model for FRP-confined HSC developed on the basis of the database is presented.

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Building Materials and Structural Engineering II

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Periodical:

Advanced Materials Research (Volume 743)

Pages:

45-49

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.743.45

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Online since:

August 2013

Authors:

Jian Chin Lim, Togay Ozbakkloglu

Keywords:

Axial Strain, Axial Stress, Concrete, Confinement, Fiber Reinforced Polymer (FRP), High-Strength Concrete (HSC), Model

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