The Shear Capacity Estimation of Reinforced Concrete Short Beams with Steel Fiber by Digital Image Correlation Approach

Abstract This research aimed to estimate the shear capacity of reinforced concrete short beams with steel fiber (RSF short beams) using DIC (digital image correlation). Four-point bending tests of RSF short beams with shear span ratio (a/d) of 1.0, 1.5, and 2.0 were conducted. 0.5% or 1.0% volume fr...

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Main Authors: Narawit Hemstapat, Kazumasa Okubo, Junichiro Niwa, Mitsuyasu Iwanami
Format: Article
Language:English
Published: SpringerOpen 2023-06-01
Series:International Journal of Concrete Structures and Materials
Subjects:
Online Access:https://doi.org/10.1186/s40069-023-00597-1
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author Narawit Hemstapat
Kazumasa Okubo
Junichiro Niwa
Mitsuyasu Iwanami
author_facet Narawit Hemstapat
Kazumasa Okubo
Junichiro Niwa
Mitsuyasu Iwanami
author_sort Narawit Hemstapat
collection DOAJ
description Abstract This research aimed to estimate the shear capacity of reinforced concrete short beams with steel fiber (RSF short beams) using DIC (digital image correlation). Four-point bending tests of RSF short beams with shear span ratio (a/d) of 1.0, 1.5, and 2.0 were conducted. 0.5% or 1.0% volume fraction of steel fiber was used. The distribution of minimum principal strain (Ɛ 2) was obtained from DIC then the width of compressive strut was evaluated. The effects of volume fraction of steel fiber and shear span ratio were investigated. Finally, the shear capacity of RSF short beams was estimated with the help of DIC.
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spelling doaj.art-d85f851695df4659b8c271e4191ea9a52023-06-18T11:10:00ZengSpringerOpenInternational Journal of Concrete Structures and Materials2234-13152023-06-0117111210.1186/s40069-023-00597-1The Shear Capacity Estimation of Reinforced Concrete Short Beams with Steel Fiber by Digital Image Correlation ApproachNarawit Hemstapat0Kazumasa Okubo1Junichiro Niwa2Mitsuyasu Iwanami3Department of Civil and Environmental Engineering, Tokyo Institute of TechnologyDepartment of Civil and Environmental Engineering, Tokyo Institute of TechnologyDepartment of Civil and Environmental Engineering, Tokyo Institute of TechnologyDepartment of Civil and Environmental Engineering, Tokyo Institute of TechnologyAbstract This research aimed to estimate the shear capacity of reinforced concrete short beams with steel fiber (RSF short beams) using DIC (digital image correlation). Four-point bending tests of RSF short beams with shear span ratio (a/d) of 1.0, 1.5, and 2.0 were conducted. 0.5% or 1.0% volume fraction of steel fiber was used. The distribution of minimum principal strain (Ɛ 2) was obtained from DIC then the width of compressive strut was evaluated. The effects of volume fraction of steel fiber and shear span ratio were investigated. Finally, the shear capacity of RSF short beams was estimated with the help of DIC.https://doi.org/10.1186/s40069-023-00597-1Compressive strutDICShort beamSteel fiberShear
spellingShingle Narawit Hemstapat
Kazumasa Okubo
Junichiro Niwa
Mitsuyasu Iwanami
The Shear Capacity Estimation of Reinforced Concrete Short Beams with Steel Fiber by Digital Image Correlation Approach
International Journal of Concrete Structures and Materials
Compressive strut
DIC
Short beam
Steel fiber
Shear
title The Shear Capacity Estimation of Reinforced Concrete Short Beams with Steel Fiber by Digital Image Correlation Approach
title_full The Shear Capacity Estimation of Reinforced Concrete Short Beams with Steel Fiber by Digital Image Correlation Approach
title_fullStr The Shear Capacity Estimation of Reinforced Concrete Short Beams with Steel Fiber by Digital Image Correlation Approach
title_full_unstemmed The Shear Capacity Estimation of Reinforced Concrete Short Beams with Steel Fiber by Digital Image Correlation Approach
title_short The Shear Capacity Estimation of Reinforced Concrete Short Beams with Steel Fiber by Digital Image Correlation Approach
title_sort shear capacity estimation of reinforced concrete short beams with steel fiber by digital image correlation approach
topic Compressive strut
DIC
Short beam
Steel fiber
Shear
url https://doi.org/10.1186/s40069-023-00597-1
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