Evaluation of steel truss construction scheme based on Vague sets

Influenced by the period, cost, construction technique and quality, safety civilized construction, the reasonable selection of the construction scheme of large span steel truss is made with strong fuzziness and uncertainty. And at present there is no unified method of how to effectively evaluate the energy-saving residential design scheme. The evaluation of applying the fuzzy theory of Vague sets to the construction scheme of steel trusses is puts forward in this paper. On the basis of the description of the concept and the algorithm implementation of the method, the evaluation system of the construction plan was established, and the weight coefficient of each index was introduced. The effective application and the plan optimization process of that method were analyzed by using examples.