大型桥梁造价预测交叉均衡算法仿真

Large-scale Bridge Cost Forecast Cross Equalization Algorithm Simulation

大型桥梁建设工程巨大,影响因子较多,工程造价预测难以有效均衡,传统方法采用单因素灰色关联预测的工程造价预测设计,预测精度和均衡性不好。提出一种基于主成分分析的大型桥梁造价预测交叉均衡算法,对大型桥梁工程造价预测和控制进行数学模型构建,得到质量—效率—成本控制的多目标贴近度数学模型。分析大型桥梁消耗影响特征信息统计参量,得到主成分分析的成本特征方程,实现大型桥梁造价预测交叉均衡算法。实验结果表明,采用该算法,可以实现质量水平和效率水平较高,单位成本较低的目标,达到对工程造价预测交叉均衡的目的。

The construction of large bridge is huge, impact factor is more, engineering cost prediction is difficult to effectively balance, the traditional method is adopted in the design of the project cost forecast grey single factor prediction, the prediction accuracy and balance is not good. A cross equalization algorithm to predict cost large bridge is proposed based on principal component analysis, the large bridge engineering cost prediction and control of building mathematical model is constructed, get quality-efficiency-multi objective cost control close degree model. Large bridge influence statistical parameters information consumption is analyzed, cost characteristic equation of principal component analysis is obtained, and the large-scale bridge cost forecast cross equalization algorithm is realized. The experimental results show that, the algorithm can achieve the level of quality and efficiency, it has high level and low unit cost goal, it can predict cross equalization purposes on engineering cost.