Reliability Analysis on Sluice Gate of Cao'E River Dam Under Tidal Bore Loads

摘要

Tidal bore loads are the main control loads for Sluice gate of Cao'e River dam. Tidal bore loads are complex and influenced by many random factors, thus the Monte Carlo method is adopted to conduct a stochastic simulation analysis on such loads. Firstly, the procedure of Monte Carlo stochastic simulation analysis on structural reliability is studied, and the random variable sampling method with improved Two-Dimensional Logistic Map is introduced in our study. Then, random analysis are made for the selected typical tidal bore parameters based on field observed data, including tidal bore height, velocity and flow direction. Our random analysis results indicate that the tidal bore height and velocity follow normal distribution, and the flow direction obeys uniform probability distribution. In the end, the tidal bore loads are simulated using Monte Carlo method based on our rapids vibration test data, hence allowing the impact loads of the sluice gate to be investigated. The reliability assessment of the sluice gate is conducted finally base on sampling analysis results.