3-D DEM installing column shape reinforcing bar element and its application for RC beam impact analysis

This paper proposes a column shape DEM element to use as reinforcing bar element in the reinforced concrete beam subjected to impact load. First, the rigid body motion including its posture expression is formulated as DEM equation of motion. Specialized contact judgement as reinforcing bar element w...

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Bibliographic Details
Published inJournal of Structural Engineering, A Vol. 55A; pp. 1238 - 1249
Main Authors Fujikake, Kazunori, Katsuki, Satoshi, Haraki, Daisuke
Format Journal Article
LanguageEnglish
Japanese
Published Japan Society of Civil Engineers 2009
Subjects
Column element
Confinement effect
Distinct Element Method
reinforcing bar element
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ISSN1881-820X
DOI10.11532/structcivil.55A.1238

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Summary:This paper proposes a column shape DEM element to use as reinforcing bar element in the reinforced concrete beam subjected to impact load. First, the rigid body motion including its posture expression is formulated as DEM equation of motion. Specialized contact judgement as reinforcing bar element which are holding semi-linear shape in the concrete materials expressed by sphere elements with rugged surface. The shear spring constitutive laws expressing the slip behavior between concrete and reinforcing bar element are also formulated. Finaly, an experimental result of RC beam subjected to weight collision impact is simulated.
ISSN:1881-820X
DOI:10.11532/structcivil.55A.1238