Tensile forces loss of pre-stressed concrete member will occur with various causes. However, there are differences between calculation results introduced by design code and test results. It is important to reduce the number of errors. In this paper, we suggest measuring of tendon strain from jacking stage. The careful placement plan of strain gauge for PS strand should be considered because of twisted tensile behavior. Later, the experimental investigation would be conduct to make an accurate estimate of tensile forces loss.

• 김지훈(학생회원, 경희대학교 건축공학과 석사과정) | Ji-Hun Kim
• 홍원기(정회원, 경희대학교 건축공학과 정교수) | Won-Kee Hong
• 박선치(정회원, 경희대학교 건축공학과 박사후 연구원) | Seon-Chee Park
• 임균택(학생회원, 경희대학교 건축공학과 석사과정) | Gyun-Taek Lim
• 고효진(학생회원, 경희대학교 건축공학과 석사과정) | Hyo-Jin Ko