### 抄録

Studying about fatigue in RC beams without stirrup is one of valid approaches to investigate fatigue problem in RC slabs because the transverse cracked slab can be considered as plural RC beams lined up in parallel. Therefore, in this paper, authors tried to clarify the fatigue damage in RC beams keeping the problem of RC slabs in mind. Non-linear three-dimensional finite element analysis (3D-FEA) of RC beams without stirrup is conducted under three types of loading conditions; static load, fatigue load and variable amplitude fatigue load. By comparing static and fatigue analysis results, authors examine the principal compressive stress distribution and the stiffness reduction. This paper presents that static and fatigue loading showed different trends in both the stress distribution and stiffness reduction. It can be also revealed that when variable amplitude load with different two load blocks is given in fatigue analysis, the cyclic loading in the first load block influences on the decreasing rate of stiffness.

元の言語 | English |
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ホスト出版物のタイトル | Proceedings of the fib Symposium 2019 |

ホスト出版物のサブタイトル | Concrete - Innovations in Materials, Design and Structures |

編集者 | Wit Derkowski, Piotr Krajewski, Piotr Gwozdziewicz, Marek Pantak, Lukasz Hojdys |

出版者 | International Federation for Structural Concrete |

ページ | 1677-1683 |

ページ数 | 7 |

ISBN（電子版） | 9782940643004 |

出版物ステータス | Published - 2019 1 1 |

イベント | fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures - Krakow, Poland 継続期間: 2019 5 27 → 2019 5 29 |

### 出版物シリーズ

名前 | Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures |
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### Conference

Conference | fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures |
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国 | Poland |

市 | Krakow |

期間 | 19/5/27 → 19/5/29 |

### Fingerprint

### ASJC Scopus subject areas

- Building and Construction
- Architecture
- Civil and Structural Engineering

### これを引用

*Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures*(pp. 1677-1683). (Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures). International Federation for Structural Concrete.

**An analytical study on effects of loading history to shear behavior of RC beams under cyclic loading.** / Takeda, Kyoko; Sato, Yasuhiko.

研究成果: Conference contribution

*Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures.*Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures, International Federation for Structural Concrete, pp. 1677-1683, fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures, Krakow, Poland, 19/5/27.

}

TY - GEN

T1 - An analytical study on effects of loading history to shear behavior of RC beams under cyclic loading

AU - Takeda, Kyoko

AU - Sato, Yasuhiko

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Studying about fatigue in RC beams without stirrup is one of valid approaches to investigate fatigue problem in RC slabs because the transverse cracked slab can be considered as plural RC beams lined up in parallel. Therefore, in this paper, authors tried to clarify the fatigue damage in RC beams keeping the problem of RC slabs in mind. Non-linear three-dimensional finite element analysis (3D-FEA) of RC beams without stirrup is conducted under three types of loading conditions; static load, fatigue load and variable amplitude fatigue load. By comparing static and fatigue analysis results, authors examine the principal compressive stress distribution and the stiffness reduction. This paper presents that static and fatigue loading showed different trends in both the stress distribution and stiffness reduction. It can be also revealed that when variable amplitude load with different two load blocks is given in fatigue analysis, the cyclic loading in the first load block influences on the decreasing rate of stiffness.

AB - Studying about fatigue in RC beams without stirrup is one of valid approaches to investigate fatigue problem in RC slabs because the transverse cracked slab can be considered as plural RC beams lined up in parallel. Therefore, in this paper, authors tried to clarify the fatigue damage in RC beams keeping the problem of RC slabs in mind. Non-linear three-dimensional finite element analysis (3D-FEA) of RC beams without stirrup is conducted under three types of loading conditions; static load, fatigue load and variable amplitude fatigue load. By comparing static and fatigue analysis results, authors examine the principal compressive stress distribution and the stiffness reduction. This paper presents that static and fatigue loading showed different trends in both the stress distribution and stiffness reduction. It can be also revealed that when variable amplitude load with different two load blocks is given in fatigue analysis, the cyclic loading in the first load block influences on the decreasing rate of stiffness.

KW - 3D FEA

KW - Fatigue

KW - RC beam

KW - Stiffness degradation

KW - Variable load

UR - http://www.scopus.com/inward/record.url?scp=85066073300&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85066073300&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85066073300

T3 - Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures

SP - 1677

EP - 1683

BT - Proceedings of the fib Symposium 2019

A2 - Derkowski, Wit

A2 - Krajewski, Piotr

A2 - Gwozdziewicz, Piotr

A2 - Pantak, Marek

A2 - Hojdys, Lukasz

PB - International Federation for Structural Concrete

ER -