Study on cost and schedule combined control of 4D model based on building information modeling(BIM)

In view of the current construction project management activities, there often appears a phenomenon that one target is optimal but the others are not very good. For the sake of avoiding the phenomenon of target control in one sector, it is necessary to carry out the cost and schedule combined control, so as to achieve the best comprehensive optimal control effect. In this paper, a study is carried out both on the method in order to realize 4D construction simulation, and studying on the theory of cost and schedule combined control in project management based on 4D BIM model. An exampleis set of one international center project in Xi 'an, by means of the overall 3D model linking to the construction schedule plan, using comprehensive progress rate curve to macroeconomic regulation and control project progress, and evaluate the project cost parameters by earned value method.By putting forward the idea 4D model based on BIM and cost and schedule combined control, we can reach the goal of the dynamic management and integration control to schedule and cost, and the visualization simulation of the whole construction process realized.