混凝土热学参数最优选取方法研究

ue to human and natural factors interference, it will lead to instability of calculate parameters in real construction. Therefore, it is necessary to take the parameters optimization value based on probability statistic into account under the influence of random factors. Figure out each parameter probability distribution based on back analysis data, and train the nonlinear relationship between parameters and result under the influence of various parameters interaction. Consider field monitoring value as the input neurons, calculate the value of each parameter, get the value range for each parameter considering their interaction. Then, change the main parameters by a certain rate, calculate other parameters on the basis of interaction coefficients. So that, parameters joint probability can be got for each parameters adjustment case according to each parameter probability distribution, and the parameters to be optimized can be determined by constrasting each parameters joint probability case. Example illustrates that, the difference between numerical calculate value and field monitoring value decreases by adopting the parameters optimization method.