Abstract:
The value of load partial coefficient is directly related to the reliability of structural members. In order to analyze the influence of grading standard of bearing capacity for structural members after adjustment of load partial coefficient, 14 representative structural members were selected to calculate their partial factors of resistance. Considering three simple combinations of dead load and floor live load(office), dead load and floor live load(dwelling), dead load and snow load, dead load and wind load and common load effect ratios, the reliability analysis of each member are developed. Then the grading standard of load capacity evaluation of structural members after adjustment of load partial coefficient is proposed. The results show that the safety classification of structural components under different safety levels in(GB 50292—2015) is conservative. The reliability index classification standard proposed in this paper can more reasonably reflect the control level of the new standard on the reliability of structural components, and can provide a reference for the revision of the national standard.