Study On Fast Quoted Price Method Under Mode Of Bill Quantity Valuation

The traditional fixed pricing model has gradually been instead of internationally accepted mode of the Bill of Quantities because of being unable to meet the needs of market economy development With the increased openness of China's construction market.However, due to the fixed pricing has long been inherent in the concept and the current construction market mechanism has not yet fundamentally changed ,we still have a lot of differences with the international practice although the Bill of Quantities has been implemented in some areas.And the conditions of implementing the Bill of Quantities are not perfect.the most important condition for Bill Price is "enterprise scale".However, the majority of construction enterprises in China do not have the enterprise scale reflecting their level of productivity.the focus of this study is how to offer the realization quickly in the conditions of lacking of enterprise scale,aiming to provide convenience for construction enterprises.The article first briefly introduced the theory of the Bill of Quantities,Then pointed out the advantages and disadvantages and feasibility of composite base method, the similarity coefficient method, fuzzy method and regression analysis through introducing and analysing them.On this basis, the paper proposed Gray Model and screened for work already done useing Grey sequencing method to achieve the GM (l, l) and GM (l, N) model optimization.This paper presented the method of combining selection of typical engineering with project cost analysis of the price structure in the establishment of model and predicted the tender of a project Using this method.