Abstract:The traditional BIM estimation model of post-earthquake construction schedules ignores the effect of lean management on the construction schedule, thus wasting construction costs and affecting the later stages of the construction schedule. In this work, an evaluation model of post-earthquake construction schedule is constructed on the basis of BIM and lean management. In the proposed model, the evaluation of post-earthquake building schedule is subdivided. Then, three-dimensional calculation is implemented on the basis of BIM, and the submodel of schedule planning is used to obtain subproject quantities. The main schedule plan of building construction is determined, and the construction schedule plan is established. Construction state is simulated and refined by using the schedule control submodel in virtual and practical construction. On the basis of simulation and practical results, the planning construction cost, actual construction cost, and earned value curve of the post-earthquake construction project are analyzed and compared, and the construction schedule and cost of the project are obtained. Experimental results show that the proposed model can accurately estimate the schedule and costs of post-earthquake construction projects.
