Measuring strain and stress distributions along rebar embedded in concrete using time-of-flight neutron diffraction

H. Suzuki, K. Kusunoki, Y. Hatanaka, T. Mukai, A. Tasai, M. Kanematsu, Kenji Kabayama, S. Harjo

研究成果: Article

1 引用 (Scopus)

抄録

In modern society, architectural and civil engineering structures such as reinforced concrete buildings require high seismic performance to minimize the 'megarisk' exposed from urban earthquake hazards. In the reinforced concrete structures, the bond resistance between rebar and concrete is one important parameter for discussing its performance and it has been typically evaluated by measuring the strain distribution along the embedded rebar. Here, we present in-situ strain and stress measurements for the rebar in reinforced concrete using time-of-flight neutron diffraction as a novel alternative technique to typical strain gauges. It was demonstrated in this study that the three-dimensional deformation behavior of the embedded rebar in normal-strength concrete, cured in air, can be accurately measured under pull-out loading using time-of-flight neutron diffraction. Wider applications of neutron diffraction in the structural engineering field are expected for advanced understanding of actual phenomena on reinforced concrete structures.

元の言語English
記事番号025602
ジャーナルMeasurement Science and Technology
25
発行部数2
DOI
出版物ステータスPublished - 2014 2 1

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strain distribution
Neutron diffraction
stress distribution
neutron diffraction
Reinforced concrete
Stress concentration
Concretes
concrete structures
Concrete construction
structural engineering
Concrete buildings
stress measurement
strain measurement
Strain measurement
Stress measurement
strain gages
Strain gages
Civil engineering
Structural design
hazards

ASJC Scopus subject areas

  • Applied Mathematics
  • Instrumentation

これを引用

Measuring strain and stress distributions along rebar embedded in concrete using time-of-flight neutron diffraction. / Suzuki, H.; Kusunoki, K.; Hatanaka, Y.; Mukai, T.; Tasai, A.; Kanematsu, M.; Kabayama, Kenji; Harjo, S.

:: Measurement Science and Technology, 巻 25, 番号 2, 025602, 01.02.2014.

研究成果: Article

Suzuki, H. ; Kusunoki, K. ; Hatanaka, Y. ; Mukai, T. ; Tasai, A. ; Kanematsu, M. ; Kabayama, Kenji ; Harjo, S. / Measuring strain and stress distributions along rebar embedded in concrete using time-of-flight neutron diffraction. :: Measurement Science and Technology. 2014 ; 巻 25, 番号 2.
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AU - Tasai, A.

AU - Kanematsu, M.

AU - Kabayama, Kenji

AU - Harjo, S.

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