高层房屋建筑工程造价合理性评估模型仿真

摘要

This research focuses on the evaluation model of cost rationality of tall building engineering based on probability analysis.The model worked out the estimated cost and settlement cost of construction project of tall building engineering according to stage characteristic of project,and obtained risk function of construction cost.Then fuzzy -analytic hierarchy theory was integrated with entropy weight theory to confirm weight of risk function index.Moreover,the the value of correlation function between each index of risk function and each level was worked out,and the value of relevancy of each risk level corresponding to each risk index was obtained.Experimental results show that the method has higher feasibility and precision in evaluation of cost rationality.%高层房屋建筑工程建设需要多种要素和条件,其造价受各种因素的影响存在风险性,因此需要组建高层房屋建筑工程造价合理性评估模型.但是采用当前模型进行高层房屋建筑工程造价合理性评估时,难以评估不同风险因素对高层房屋建筑工程造价的影响程度,存在评估误差大的问题.为此,提出一种基于概率分析的高层房屋建筑工程造价合理性评估模型.上述模型先根据高层房屋建筑工程项目阶段性特点,计算出高层房屋建筑工程建设项目的预算造价和结算造价,得到高层房屋建筑工程造价的风险函数,将模糊层次分析理论与熵权理论相结合确定风险函数指标的权重,计算出待评风险函数的各指标与各等级水平的关联函数值,得到高层房屋建筑工程造价各风险指标对应于各个风险等级的相关度值,由此组建高层房屋建筑工程项目造价合理性评估模型.实验结果表明,所提方法在高层房屋建筑工程造价合理性评估研究中的可行性以及精准性.