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 |
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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 |
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言語 |
en |
作成者 |
Karimi, Abdul Khaliq
Uchida, Ryota
Aasim, Bashir Ahmad
Tomiyama, Jun
Suda, Yuya
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
権利情報 |
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言語 |
ja |
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権利情報 |
© 2021 Karimi et al. |
権利情報 |
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言語 |
en |
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権利情報 |
Creative Commons Attribution 4.0 |
権利情報 |
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言語 |
en |
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権利情報Resource |
https://creativecommons.org/licenses/by/4.0/ |
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権利情報 |
https://creativecommons.org/licenses/by/4.0/ |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Horizontal cracks |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
pretensioned girders |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
hollow PCgirders |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
finite element analysis |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Midas FEA |
内容記述 |
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内容記述タイプ |
Other |
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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 |
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内容記述タイプ |
Other |
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内容記述 |
論文 |
出版者 |
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言語 |
en |
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出版者 |
Indian Society for Education and Environment |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ |
journal article |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
識別子 |
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識別子 |
http://hdl.handle.net/20.500.12000/49792 |
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識別子タイプ |
HDL |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.17485/IJST/v14i16.2280 |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.17485/IJST/v14i16.2280 |
収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0974-6846 |
収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0974-5645 |
収録物名 |
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言語 |
en |
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収録物名 |
Indian Journal of Science and Technology |
書誌情報 |
巻 14,
号 16,
p. 1283-1295,
発行日 2021-05-07
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