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  1. 学術雑誌論文
  2. その他
  1. 部局別インデックス
  2. 工学部

Numerical study on the temporal changes of the principal stresses at the ends of the hollow PC-girders to control horizontal end cracks

http://hdl.handle.net/20.500.12000/49792
http://hdl.handle.net/20.500.12000/49792
ca8d3206-4f93-49b5-b259-c7749d97f50b
名前 / ファイル ライセンス アクション
IJST-2021-2280.pdf IJST-2021-2280.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2021-09-30
タイトル
タイトル Numerical study on the temporal changes of the principal stresses at the ends of the hollow PC-girders to control horizontal end cracks
言語 en
作成者 Karimi, Abdul Khaliq

× Karimi, Abdul Khaliq

en Karimi, Abdul Khaliq

Uchida, Ryota

× Uchida, Ryota

en Uchida, Ryota

Aasim, Bashir Ahmad

× Aasim, Bashir Ahmad

en Aasim, Bashir Ahmad

Tomiyama, Jun

× Tomiyama, Jun

en Tomiyama, Jun

Suda, Yuya

× Suda, Yuya

en Suda, Yuya

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
言語 ja
権利情報 © 2021 Karimi et al.
主題
言語 en
主題Scheme Other
主題 Horizontal cracks
言語 en
主題Scheme Other
主題 pretensioned girders
言語 en
主題Scheme Other
主題 hollow PCgirders
言語 en
主題Scheme Other
主題 finite element analysis
言語 en
主題Scheme Other
主題 Midas FEA
内容記述
内容記述タイプ Other
内容記述 Background/Objectives: To professionally meet bridge load demands, hollow PC-girders are recently considered for bridge construction, particularly in Japan. Hollow girders are pretensioned girders, which can be a good alternative for ordinary PC-girders by having lightweight, using less material than other beams, and spanning long distances. Hollow PC-girders can be vulnerable to horizontal end cracking at the time of prestressing strand release. Methods: In this study, a nonlinear finite element analysis was performed to investigate the occurrence of horizontal cracks at the time of prestressing at the ends of hollow PC-girders. First, the selected hollow girder was miniaturized to a span length of 4 m required for sufficiently prestressing; then, a standard static prestressing analysis was performed using a finite element analysis software Midas FEA. This software is an analysis tool with standard FEM analysis functions in the construction field and can perform detailed analysis for reinforcements and concrete crack analysis. The software was used to model the girder and investigate the temporal changes of principal stresses at hollow PC-girders’ ends. Findings: The study showed that placing only end-zone reinforcements cannot reduce principal stresses to the level to be less than the concrete’s tensile strength. However, debonding four PC-strands at the ends of the girder alongside the placement of end-zone reinforcements could sufficiently reduce principal stresses to the level to be less than the tensile strength of concrete, and consequently, horizontal cracks were eliminated at the ends of the hollow PC-girder.
内容記述タイプ Other
内容記述 論文
出版者
言語 en
出版者 Indian Society for Education and Environment
言語
言語 eng
資源タイプ
資源タイプ journal article
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/49792
識別子タイプ HDL
関連情報
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.17485/IJST/v14i16.2280
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.17485/IJST/v14i16.2280
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0974-6846
収録物識別子タイプ ISSN
収録物識別子 0974-5645
収録物名
言語 en
収録物名 Indian Journal of Science and Technology
書誌情報
巻 14, 号 16, p. 1283-1295
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