| Title |
Stress Distribution Characteristics of Surrounding Reinforcing Bars due to Reinforcing Bar Cutting in Penetration |
| Authors |
정철헌(Chung, Chul-Hun) ; 문일환(Moon, Il Hwan) ; 이정휘(Lee, Jungwhee) ; 송재철(Song, Jae Cheol) |
| DOI |
https://doi.org/10.12652/Ksce.2022.42.6.0775 |
| Keywords |
원자력발전소; 관통부; 철근 절단; 구조물 건전성; 유효폭 Nuclear power plant; Penetration; Reinforcing bar cutting; Structural integrity; Effective width |
| Abstract |
In the plant structures including nuclear power plants, penetrations are frequently installed in walls and slabs to reinforce facilitiesduring operation, and reinforcing bars are sometimes cut off during concrete coring. Since these penetrations are not considered at thedesign or construction stage, cutting of reinforcing bar during opening installation is actually damage to the structure, structuralintegrity 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 occurswhen a penetration is newly installed in the shear wall of wall-type building of operating nuclear power plant. In addition, the decreasein wall stiffness due to the installed new penetration and cutting of reinforcing bars is evaluated and the stress and strain distributionsof rebars around penetration are also measured. |