| Title |
Reliability Analysis of RC Short Column Subjected to Biaxial Bending |
| Keywords |
probability ; reliability ; reliability index β ; column ; biaxial bending ; AFOSM |
| Abstract |
The safety of buildings is generally estimated by analyzing a plane frame ignoring a minor bending moment. In this paper, uncertainties of short reinforced concrete columns subjected to a biaxial bending are considered. First, major parameters are selected from all parameters of general column design to preform a reliability analysis in their practical ranges. Means and standard deviations of selected design parameters for the reliability analysis are calculated by a data mining as a simulation method. The bi-section method is used to find inclined neutral axis and it's limit state using MATLAB subjected to the concept of strength design method. The reliability index β as a safety index is calculated based on AFOSM(Advanced First Order Second Moment) method. Also, if target reliability index βT is decided by an engineer, an amount of reinforcement can be calculated by subtracting the reliability index β from the target reliability index βT . |