关键词: 重大工程, 数字建造, 交易行为监管, 演化博弈, 系统动力学

Abstract: The construction of digital construction platforms improves the sharing degree of project transaction information and reduces the degree of information asymmetry in the process of project transaction. Therefore, it has become a powerful tool for supervision of major construction projects transaction. In order to explore the strategy formation and behavior evolution process for transaction the behavior supervision system of major construction projects under the context of digital construction, based on the evolutionary game theory and system dynamics, this paper constructed an evolutionary game model for the transaction behavior supervision of major construction projects under digital construction situation supervision, and explored the influence of different external variables on the strategy changes of the project supervisor, the project contractor, and the project owner, as well as the influence of the level of the digital construction platform on the stability of the evolutionary game strategy. The simulation results show that the punishment intensity, the supervision cost, and the expected gain from violation have a great impact on the transaction behavior of the participants. The improvement of the level of the digital construction platform can effectively curb the illegal behavior of the project supervisor and the project contractor. Finally, some reasonable suggestions are proposed concerning the design of scientific and reasonable management of digital construction platforms and the behavior of game players, so as to effectively achieve the construction objectives of major projects.

Key words: major construction projects, digital construction, transaction behavior supervision, evolutionary game, system dynamics