基于PSM模型的新型材料单价确定方法的研究

Research on Method for Determining Unit Price of New Materials Based on PSM Model

研究目的:在变更项目中出现新型材料时,未形成对于承包人如何根据市场调查等方法取得新型材料市场价格的具体要求,导致新型材料真实合理价格的获取成为难题。基于此,本文引入PSM(Price Sensitivity Measurement)模型,将PSM模型应用于获取真实合理的市场价格,从而得到信息价格缺价情况下无适用无类似变更工程项目的材料综合单价。研究结论:(1)以市场询价的方式,基于市场调查的方法,运用PSM模型能得到较为真实合理的新型材料市场价格;(2)通过此方法可以获得信息价格缺价情况下的人工单价、工程设备价格和施工机具的使用价格,再根据相应费率计算出管理费和利润,汇总人工费、材料费、工程设备费、机具使用费、管理费、利润形成变更综合单价;(3)市场价格信息并不是越多越好,因为获取市场价格信息的目的是应用获取的市场价格信息来解决工程变更中的实际问题,所以,收集市场价格信息要本着信息有用、合用、有效的原则,市场价格信息的质量与工程变更管理活动的目标一致才有价值;(4)本研究结论可用于建设工程施工企业新型材料的成本控制,工程造价管理机构公布的材料价格信息中新型材料单价的采集亦可采用本研究结论进行。

Research purposes： When new materials emerge in the variance project,there is no specific rule for the contractor to require price of the new material based on market surveys and other methods,resulting in that getting new materials with reasonable prices becomes a real problem. To solve this problem,we introduced PSM（ Price Sensitivity Measurement） model to obtain the true and reasonable market price. Research conclusions： Based on market inquiry and market research approach,PSM model can be used to get more real and reasonable market price of new materials. This method can help the contractor to obtain artificial price,engineering equipment and construction equipment price information price in case of missing price. And then,calculate the management fees and profits in accordance with the appropriate rates,and aggregate labor costs,material costs,engineering,equipment costs,equipment use fees,management fees,profit which form the variance integrated unit price. In addition,the study found that more market price information does not mean better,because the purpose of obtaining market prices information is to solve practical problems in engineering variance. Therefore,gathering market price information must obey principle of usefulness,quality and effect,so that price information can be consistent with the goal of variance management activities. The research conclusion can be used in new materials cost control inconstruction company,which will also be used in the collection of new materials price.