The uniaxial load tests were conducted to investigate the material behavior of CFRP sheets. The results show that the probability distribution of CFRP tensile strength can be described by the three-parameter Weibull distribution. The design formulae for determining flexural capacity of reinforced concrete strengthened with CFRP sheet are proposed. The Monte Carlo procedure is applied to simulate the flexural capacity of reinforced concrete strengthened with CFRP sheet, and the results show that the flexural capacity can be considered to obey the normal distribution. By using the JC method, the reliability index is calculated based on the statistics of flexural capacity and load effect. After the analysis of the effect of the partial factor of CFRP sheet on the reliability index, the results reveal that the reliability index of all design points are the most close to target reliability index overall when the partial factor of CFRP sheet is 1.25, and in this condition the reliability index of three failure modes is larger than the target reliability index. Therefore, the partial factor is suggested to be 1.25, which can meet the requirement of reliability design.
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- Statistical Studies on Material Behavior of CFRP Sheets under Uniaxial Loads and Its Application in Reliability Analysis
- Springer Berlin Heidelberg