The engineering cost database contains essential information for both internal and external cost management. However, it does not include data related to the engineering company’s proposed bidding projects. In contrast, BIM models can accurately and comprehensively display all project information. When combined with BIM technology, engineering cost management can be divided into three key stages: the bidding and quotation stage, the construction budget stage, and the project settlement stage.
(1) Application in the Bidding and Quotation Stage
By analyzing data from the engineering cost database, companies can compile enterprise quotas based on consumption data for labor, materials, and machinery. These quotas are then adjusted according to the specifics of the bidding project. Simultaneously, BIM models provide precise quantities for units or individual items. Using the engineering cost database, market price information is determined to calculate the total cost required to complete the bidding project.
Once the bid is confirmed, the likelihood of winning is evaluated. If the probability of success is high, BIM is utilized for simulation construction. The quotation is then adjusted based on simulation results to finalize the bidding price.
(2) Application in the Construction Budget Stage
During construction, controlling costs is a primary focus of engineering cost management. BIM technology is employed to simulate construction processes, predict potential changes, and avoid costly modifications. This helps reduce rework and repetitive tasks, ultimately controlling construction expenses.
By mining data from the engineering cost big data platform, potential cost-impacting factors are identified. Based on risk profiles, appropriate mitigation strategies are implemented. For technical risks, BIM models enable early adjustments to minimize risk from a technical standpoint. At the same time, favorable cost factors are recognized and leveraged to optimize settlement costs and increase profitability.
(3) Application in the Engineering Settlement Stage
The final phase of engineering cost management is the settlement stage. The focus is on resolving outstanding costs related to risk events such as engineering changes and quality defects, following contractual regulations. Claims and settlements are filed based on contracts and standard terms.
Next, engineering cost data is collected and preliminarily processed. Lessons learned from cost management are analyzed, including reasons for profit fluctuations. This analysis informs avoidance strategies for future projects. The accumulated cost data is then incorporated into the engineering cost database and enriched within the BIM model, completing the project’s cost big data accumulation.
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