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신재철,정성진,정인수,한성효 충남대학교 산업기술연구소 2004 산업기술연구논문집 Vol.19 No.1
The nuclear containment structure prevent leaking of the radiation during a loss of coolant (LOCA). In case LOCA, the nuclear containment structures are swelled with internal pressure. Thus the wall of the containment behaves itself like the membrane. In the analysis of the nuclear containment structure, the tension stiffening effect is important part of the nonlinear analysis because the wall is failed by tension force. Biaxial tension test of reinforced concrete panel members modeling a nuclear power plant containment wall members were conducted to investigate the cracking behaviors with regard to the reinforcement ratio and tensile load ratio. This paper is aimed at the investigation of behaviors of the concrete wall panels which are the partial of the reinforced concrete containment walls, and derivation of the stress-strain relation of concrete and reinforcement regarding the variables of reinforcement ratio and tensile load ratio. Panels are investigated the influence of the Hsu-Zhang tension stiffening model. The results from this study would make it possible to predict the cracking stress of concrete reinforcement building by analytical methods regarding Hsu-Zhang tension stiffening model
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