Improvement of Flexural Strength of RC Beams by Using the Multi-Layer Multi-Tensioning Method with CF Sheets

Takayuki Kusaka; Keiko Watanabe; Ken Suke Okubo; Hironori Namiki

doi:10.4028/www.scientific.net/KEM.334-335.429

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 334-335Improvement of Flexural Strength of RC Beams by...

Improvement of Flexural Strength of RC Beams by Using the Multi-Layer Multi-Tensioning Method with CF Sheets

Abstract:

A novel retrofitting method using extremely prestressed carbon fiber sheets, MLML (Multi-Layer Multi-Tensioning) method, was proposed for improving the flexural strength of reinforced concrete structures. The experimental results suggested that the crack initiation strength and the energy absorbing capacity of RC beams could be largely improved by the MLMT method. However, the advantage of the MLMT method was not so clear on the rebars yielding strength and the ultimate flexural strength of RC beams, compared with the conventional methods.

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Periodical:

Key Engineering Materials (Volumes 334-335)

Pages:

429-432

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.334-335.429

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Online since:

March 2007

Authors:

Takayuki Kusaka, Keiko Watanabe, Ken Suke Okubo, Hironori Namiki

Keywords:

Anchoring, CF Sheet, Flexural Strength, Fracture Mechanic, Interfacial Mechanics, MLMT Method, Reinforced Concrete (RC) Beam, Reinforcement, Retrofitting, Tensioning Bonding

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