Shear fatigue load carrying mechanism of reinforced concrete beam with artificial cracks along tensile rebar

Yuta Yamada, Nobuhiro Chijiwa, Mitsuyasu Iwanami

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper represents an effect of artificial crack length for fatigue load carrying mechanism of cracked reinforced concrete (RC) beams without stirrups. To make clear the mechanism, loading experiments and finite element analyses were conducted by using the beams which have artificial cracks instead of corrosion cracks. As a result, the gradient of decrease in the fatigue strength of the beams whose static strength was enhanced due to tied arch action became remarkably high. The cause could be explained by localization of damage accumulating area which was characterized by a shape of the load path. It was confirmed that the load path was attracted at the position of crack tips when the crack tips existed in B-region. The results represented a possibility that decrease in the fatigue strength of RC beams could be controlled by change in the shape of the load path.

Original languageEnglish
Title of host publicationProceedings of the 11th fib International PhD Symposium in Civil Engineering, 2016
EditorsKoichi Maekawa, Jun Yamazaki, Akio Kasuga
Publisherfib. The International Federation for Structural Concrete
Pages111-117
Number of pages7
ISBN (Print)9784990914806
Publication statusPublished - 2016
Externally publishedYes
Event11th fib International PhD Symposium in Civil Engineering, 2016 - Tokyo, Japan
Duration: 29 Aug 201631 Aug 2016

Publication series

Namefib Symposium
ISSN (Print)2617-4820

Conference

Conference11th fib International PhD Symposium in Civil Engineering, 2016
Country/TerritoryJapan
CityTokyo
Period29/08/1631/08/16

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