The Prediction Study of Bidding Control Price Based on Valuation with Bill Quantity

InPricing Specification of Bill of Quantities for Construction ProjectGB50500-2008 recently promulgated,the concept of bidding control price is proposed.The bidding control price is the ceiling price of the project quoted price which is set beforehand.The bidding control price which tenders appropriately compile can embody the excellent enterprise's competitiveness,improve the efficiency of bidding and reduce the project cost,so how to forecast the bidding control price accurately and rapidly has important significance for the bidding work.In this paper,based on the gray system theory and taking the interaction between main variables of the bidding control price into due consideration,the gray prediction model is established to forecast the bidding control price.The structure,calculation,error precision of the model are explained in details.Finally it is verified by the projects.