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《Journal of Zhejiang University(Engineering Science)》 2007-01
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Digital test study of corroded reinforcement mechanical properties

WANG Qiao-ping,WU Sheng-xing(1.International Audit College,Nanjing Audit University,Nanjing 210098,Chian; 2.Civil Engineering College,Hohai University,Nanjing 210029,China)  
From tension strength tests of corroded re-bar,corroded sunken pits on the surface constitute the main factor of the reinforcement capability deterioration. Digital simulation test of different corroded state reinforcement were conducted by finite element method.Different corrosion degree and different corrosion state affect reinforcement capability.Results of simulation test were in agreement with those of actual reinforcement test.A computation model of corroded reinforcement ultimate strength was put forward.Weight losing ratio and corrosion damage state are two key factors to reduce corroded reinforcement capability.Further analysis of digital test results,led to the conclusion that weight loss ratio is the main factor affecting uniformly corroded reinforcement ultimate strength,that weight loss ratio,corroded sunken pit depth and corroded sunken pit length are key factors affecting pit corroded reinforcement ultimate strength.
【Fund】: 国家自然科学基金资助项目(50079002)
【CateGory Index】: TU511.32
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