基于主成分分析法的高性能再生混凝土性能优化设计

Optimization of recycled high performance concrete base on principal component analysis

影响高性能再生混凝土性能的指标有多种因素,各指标之间由于存在相关性,而难以对其进行比较准确的评价,主成分分析法采用降维的思想把多个变量转化为少数几个互不相关的的主成分,通过对主成分的分析达到对混凝土综合性能的优化设计,以期满足对性能的最优化。实例优化也表明主成分分析法对评价混凝土的综合性能有很好的一致性,满足工程实际对其的需求,可推广运用到对高性能再生混凝土的性能评价。

There are many factors to influence the performance of recycled high performance concrete,it is difficult to evaluate accurately between various of indexes because of existing correlativity.The principal component analysis changes multiple indexes to few of irrelevant principal components using reduced-order though,we analysis the main component of the performance to concrete in order to get the optimization.The example also indicate that principal component analysis have very good consistency to evaluate the performance of concrete,it is ment to the needs of the engineering practice,it can apply for recycled high performance concrete to evaluate the performance.