Research On Cost Control Of DB Project In Design Stage

In recent years, the slow GDP growth of construction industry means the era of meager profit come gradually, making the cost control particularly important. With the separation of the design and construction of the traditional mode, resulting in some effective construction experience and methods to consider in the design work hardly, with a large number of design changes, more passive in construction site cost control, slow to promote project. With the general contracting mode advocated and promoted, the integration of design and construction of DB modes makes it have a significant advantage in cost, quality, and time Therefore, this paper conducts cost control research, combined with the importance of the design stage.From the point of view of the DB general contractor, this paper starts the study of the cost control research on design stage with the DB schema type two, and the research results obtained are as follows:1. Combing the design process and main contents of DB mode, puts forward the particularity and the importance of the preliminary design stage: on the one hand to win the award with design and construction scheme and reasonable price. On the other hand to consider the convenience and feasibility after the bid of the design.2. Analysis the factors impacted on cost with the way and the extent of them on the preliminary design stage and the construction of the design stage of the DB mode, carries on the main factors on the cost: design scheme.3. Establishes the evaluation index system about the design scheme, constructs the fuzzy matter-element model,with the effective combination of subjective and objective weights, to reflect the evaluation index distribution characteristics more really and accurately. To realize the optimization of design scheme, with the analysis of the solutions to be selected on the assumption that the optimal solution of Euclid approach degree. and through the actual engineering application, demonstrates the applicability and convenience of the model.4. Puts forward the concurrent engineering, quota design, design standards and standard design, BIM technology to support the cost control, and establishes a framework for the implementation of the above measures.Through the above research, provides ideas for the DB general contractor in the design phase of the cost control, and a reference for the comparison and selection of its design scheme in the preliminary design stage, and also further promotes the application and laies the foundation for DB mode in our country.