Research On Fuzzy Comprehensive Post-Evaluation Model Of New Construction Technology For Municipal Engineering

New technology for building industry has been used more and more widely since the development and application of ten new technologies for building industry firstly advocated by ministry of construction in 1994. A new technology successfully applied in municipal engineering can make remarkable economic benefit and social benefit. Thus, the research on the evaluation of the application of new technologies in municipal engineering is necessary and important, which will help to summarize experience and lessons during the application.The paper set up a fuzzy comprehensive post-evaluation model of new construction technology for municipal engineering. The model aims new construction technologies and new construction materials applied in municipal engineering as objects to evaluate, and focus on road engineering, water supply and sewerage works, bridge engineering and effluent plant engineering as the evaluation range. And, the success index C (Ce [0,100]) and success level that includes very successful, relatively successful, basically successful, not successful and failure of the application of new technology will be estimated as the model outputs.Evaluating index system is set up firstly in the paper. The system includes four layers, in which, the object layer consist of the only index S success level, the rule layer W consist of five indexes as Wj engineering security, W2 engineering quantity, Ws engineering cost, W~4 engineering schedule, Ws environmental affection, under the rule layer there are two sub-rule layers X and Y. To determinate the index weight, the paper adopts improved AHP method and designs a questionnaire, which helps gathering the opinions of experts from correlative field.Based on the with-and-without comparison, the paper study the method of fuzzy evaluation for single index, then go along the primal fuzzy comprehensive evaluation, and then go along the farther fuzzy comprehensive evaluation. At last, the evaluation vector Bs is worked out and will be calculated into a index C by fuzzy method. The success level of the application of new technology attributes to the index C.