区块链可以提升信息透明度、重塑信任,加速企业负责、政府监管、社会监督的建筑工程质量协同治理局面的形成。本文构建了区块链平台上政府、建筑企业和公众建筑工程质量协同治理演化博弈模型并进行稳定性分析,结合系统动力学探讨不同因素对协同治理系统的影响。结果表明,区块链平台建设成本与建筑企业上链时的损失不利于协同治理；监管效用系数、质量安全收益提升系数和建筑产品增值系数对协同治理有正向促进作用,且建筑产品增值系数是应聚焦的关键因素。建筑企业应通过区块链平台加强信息披露,建立企业声誉；政府和公众应充分发挥监管与监督作用。

The blockchain technology can enhance information transparency, reshape trust and accelerate the formation of construction quality co-governance of enterprise responsibility, government oversight and public supervision. In this paper, an evolutionary game model of quality co-governance among government, construction enterprises and the public on the blockchain platform was constructed, and the evolutionary stability strategy was analyzed. In order to figure out the influence of different factors on the co-governance system, the external variables of the system were simulated and analyzed combined with the system dynamics. The results show that the construction cost of the blockchain platform and the on-chain-loss of construction enterprises are not conducive to co-governance. Meanwhile, the regulatory utility coefficient, quality and safety gain enhancement coefficient and construction product value-added coefficient have a positive effect on the co-governance, and the construction product value-added coefficient is the key factor that should be focused on. The blockchain technology has a facilitating effect on the collaborative governance of construction project quality. Construction enterprises should join the blockchain platform to strengthen information disclosure and build corporate reputation, while the government and the public should give full play to the role of regulation and supervision.

TU712

国家自然科学“基于区块链的建筑工程质量共治共创模式研究：协调机理、可信框架、挖掘方法”(71821001)；国家重点研发计划项目“工程建造云边端数据协同机制与一体化建模关键技术”(2022YFC3801700)；国家自然科学基金重点联合“工程施工质量安全数字化监控理论及关键技术研究”(U21A20151)