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http://dx.doi.org/10.12652/Ksce.2022.42.6.0775

Stress Distribution Characteristics of Surrounding Reinforcing Bars due to Reinforcing Bar Cutting in Penetration  

Chung, Chul-Hun (Dankook University)
Moon, Il Hwan (KEPCO-E&C)
Lee, Jungwhee (Dankook University)
Song, Jae Cheol (KEPCO-E&C)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.42, no.6, 2022 , pp. 775-786 More about this Journal
Abstract
In the plant structures including nuclear power plants, penetrations are frequently installed in walls and slabs to reinforce facilities during operation, and reinforcing bars are sometimes cut off during concrete coring. Since these penetrations are not considered at the design or construction stage, cutting of reinforcing bar during opening installation is actually damage to the structure, structural integrity evaluation considering the stress transition range or effective width around the new penetration is necessary. In this study, various nonlinear analyses and static loading experiments are performed to evaluate the effect of reinforcing bar cutting that occurs when a penetration is newly installed in the shear wall of wall-type building of operating nuclear power plant. In addition, the decrease in wall stiffness due to the installed new penetration and cutting of reinforcing bars is evaluated and the stress and strain distributions of rebars around penetration are also measured.
Keywords
Nuclear power plant; Penetration; Reinforcing bar cutting; Structural integrity; Effective width;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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