Study Of Cost Management In The Construction Under The Bill Of Quantity

With the development of construction market, especially after our country joins WTO, the traditional mode of rating valuation has not met the needs of market-based economic development. At present, in order to meeting the conjunction cost need formed by market in construction bid competition, we must reform the current project pricing method and project detailed estimate norm, and implement the valuation of bill of quantities. The valuation mode of bill of quantities is the mode that is in confa-mity with market economy, allowing contractor unit to offer price independently, determining price through market competition, and integrated into international practice.This article analyzes the basic method, procecure, content, and characteristic of the traditional rating valuation and the bill of quantities valuation, and analyzes the price composing under the mode of rating valuation and tie mode of bill of quantities valuation. According to the management system reform cf current construction cost and the characteristic of bill of quantities evaluation, the geieral frame of establishing information bank system of construction is put forward. The information bank system is generally composed of enterprise quota, manpower price information bank, information bank of construction material price, information bank of construction equipments price, information bank of lease price of mechanical equipments, information bank of documents about project price and information bank of project price exponent. On the bases of construct enterprise actual project situation, regression prediction, gray prediction and exponential smoothing are applied to the prediction of the project cost. According to the construction cost plan, cost program evaluation and time-cost optimization are used to control the project cost.