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

Kyoko Takeda, Yasuhiko Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of the fib Symposium 2019
Subtitle of host publicationConcrete - Innovations in Materials, Design and Structures
EditorsWit Derkowski, Piotr Krajewski, Piotr Gwozdziewicz, Marek Pantak, Lukasz Hojdys
PublisherInternational Federation for Structural Concrete
Pages1677-1683
Number of pages7
ISBN (Electronic)9782940643004
Publication statusPublished - 2019 Jan 1
Eventfib Symposium 2019: Concrete - Innovations in Materials, Design and Structures - Krakow, Poland
Duration: 2019 May 272019 May 29

Publication series

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

Conference

Conferencefib Symposium 2019: Concrete - Innovations in Materials, Design and Structures
CountryPoland
CityKrakow
Period19/5/2719/5/29

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Keywords

  • 3D FEA
  • Fatigue
  • RC beam
  • Stiffness degradation
  • Variable load

ASJC Scopus subject areas

  • Building and Construction
  • Architecture
  • Civil and Structural Engineering

Cite this

Takeda, K., & Sato, Y. (2019). An analytical study on effects of loading history to shear behavior of RC beams under cyclic loading. In W. Derkowski, P. Krajewski, P. Gwozdziewicz, M. Pantak, & L. Hojdys (Eds.), 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.