混凝土建筑物使用性能评估的投影寻踪回归模型

Service performance evaluation of concrete structures based on projection pursuit regression model

针对混凝土建筑物使用性能评估的高度非线性,基于投影寻踪回归理论,在确立评价指标和评价体系基础上建立投影寻踪回归系统模型,该模型通过对历史经验数据的训练可以达到较好的预测精度。将建立好的模型在实际工程中进行模拟和评估,研究表明:该模型回判估计误差小,预测结果和实测情况吻合良好,为混凝土建筑使用性能的评估提供了一条新的途径。

According to the aging situation of concrete constructers in our country and the former assessment experiences,a projection pursuit regression model system model is introduced to evaluate the performance property of aging concrete structures in consideration of establishing the relevant evaluation indexes and assessment system.Simulation and evaluation for the performance of aging concrete structures are carried out by use of the practical samples.Application results show the approximation performance of proposed model is good,prediction error is small.The methods presented a new method to evaluate service performance of concrete structures.