An Experimental Study to Determine the Effective Prestress force of PSC Beam

PSC 부재의 유효 프리스트레스력 평가를 위한 실험적 연구

  • 정철헌 (단국대학교 토목환경공학과) ;
  • 박재균 (단국대학교 토목환경공학과) ;
  • 김광수 (현대건설기술연구원)
  • Published : 2008.04.30

Abstract

To evaluate the structural integrity of the NPP containment building more rigorously, the effective prestress, which is one of the most affecting elements, needs to be estimated exactly. This paper presents the results of an experimental study to determine the effective prestress force in prestressed concrete beams. It is possible to improve the effective prestress measuring method by test beam, which is being applied for the investigation of the nuclear power plant in operation. If experimentally evaluated Lift-Off method in this study can be coupled with test beam test currently being used in in-service nuclear power plant, it is possible to measure prestress loss of the tendon and the level of the effective prestress load.

Keywords

rear-end collisions;delta-V;change of velocity;extent of vehicle damages;severity of injuries;barrier equivalent velocity;impact acceleration;biomechanical limit harmlessness

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