Abstract
The rapid growth of BIM in the construction engineering industry, mandatory use in government procurements and utilization for improving productivity, the importance of 3D product modeling in the civil engineering field is becoming increasingly prominent. This study proposes a new management method for the government to use a 3D product model based solution to support EVM, objectively evaluates the government's procurement unit and multiple construction projects. Firstly, a data structure was defined regarding the relationship of the work breakdown structure (WBS) in the government contract units by using a 3D product model. Then, an EVM system was developed to calculate quantity, cost and working day. Finally, a 3D steel bridge product model was used to verify the effectiveness of the system by using a newly defined data structure.