Abstract:

Using the performance test method, the reliability of the reinforced concrete structural element was studied. According to deflection calculations, the average reliability index is 1.20, the failure probability is approximately 15%, the proportion of the live load to the reliability index is the most important factor. The greater the proportion of the live load, the greater the factors that can not be determined,the greater the correspoding reliable indicator. According to the result of anticrack analysis, the average reliable indicator of the first grade anticrack assessment is 3.8, the corresponding failure probability is approximately 0.03%; the average reliable indicator of the second grade anticrack assessment is 3.0, the corresponding failure probability is approximately 0.44%. The different anticrack coefficients will lead to the different reliable indicator, the larger the anticrack coefficient to the first grade structural element, the higher the reliable index.

Key words: engineering structure, civil engineering, reinforced concrete, structural element, normal service limit state conditions, reliability