Study On The Evaluation Theory And Method For Tender With Fair Valuation Based On The Unascertained C-clustering Mode

How to prevent the unfair competition that the bidders bidding with low price under their practical cost, is a puzzle after applying quantity list figure into project tender and bid. Study and solve this problem, has important theoretical and practical meaning. Around the core of cost definition and judegment in construction project bidding under the bill of quantities, this thesis expounds the present research condition of tender with fair valuation, points the main problems existed at present. From the production and management features in the construction-enterprises, and the cost component of construction and installation costs, to analysis the uncertainty of construction project cost.Aim at the uncertain of construction project cost, sets up the unascertained clustering model, namely, gives a fair valuation under society average production level by using the unascertained C-clustering model, then judge whether the biding price is lower than cost or not. At last, a specific project application of this model and the relatived measures are given.The study result has greatly practical significance to prevent bid price below the cost of the tender were successful, to standardize current construction market order, to effectively control construction cost, to improve construction enterprises core competence, to promote the stable, sustainable and fast development of Chinese construction industry, and so on.