Study On Construction Procurement Under Electronic Market Envirement

Construction procurement of materials and equipments is one of the main works of construction industry. According to relevant statistical data, the material cost of every project has more than 60% of the total. The quantity and quality of construction equipments owned by construction enterprises is an important standard to evaluate their producing abilities. The commodities of construction procurement have the characteristics of numerous varieties, wide scope, strong technology and heavy workloads, and have strict requirement with procuring qualities, prices and periods. As a key, construction procurement affects the cost directly, decides the project quality, and influences the benefit and even the existence and development of an enterprise.With the low efficiency, the traditional procurement method leads to the increase of operating cost, the extending period, the lacking of the control on the procurement, and doesn't build the scale economic. In these years, with the development of the information technique and e-business, to establish a novel and high efficient construction procurement mode is possible.Starting with definition of construction procurement, this paper analyzes current status in our country, and summarizes mature comparatively procurement modes and technologies at present. Based on these, a novel e-market based construction procurement mode is established, and the system structure and working flow are designed. The main contents of management and the necessity of selecting the construction supervisor department as the manager in the e-market construction procurement mode are described. The advantages of this mode and main obstacles to build currently this mode are analyzed.This paper emphasizes on designing the models of three stages in electronic market construction procurement mode, including evaluation and decision of negotiation objects, negotiation in rounds, and consult with single trader.Based on current match tradeoff models and multi-agent technology, a match model adapting for the E-market based construction procurement mode is presented in this paper. The matching rules, market clearing and suggested trade prices are defined, and the working flow of e-market match agent is analyzed.