中文摘要：

现有研究普遍认可信任和风险分担均是影响工程项目管理绩效的重要因素，因此研究信任对风险分担的影响机理就显得尤为重要。在工程项目业主与承包商信任及风险分担动态化研究的文献分析基础上，通过对30个成功建设项目样本中60位关键项目管理人员进行的“情景带人”式半结构性访谈，应用扎根理论构建了信任与风险分担关系的概念模型。研究结果表明：业主与承包商初始信任来源于基于资格预审的能力驱动、基于合作经历的认知驱动以及基于市场声誉的价值驱动；风险分担的动态特征体现在缔约阶段的风险初次分担与履约阶段的风险再分担，通过事后支持制度，两阶段之间具有显著联动关系；在影响关系层面，信任对风险初次分担的完备程度产生反向影响，对事后支持制度产生正向影响；信任对风险再分担的规模与实施效率产生正向影响。

英文摘要：

In existing researches, trust and risk allocation are believed to be important factors affecting the performance of project management, indicating that it is particularly important to study the impact mechanism of trust on risk allocation. Based on the literature review of dynamic research between trust and risk allocation in construction project, a conceptual model for the relationship between trust and risk allocation was established using the grounded theory through the semi-structured interviews of 60 key project managers in 30 successful projects. The findings are as follows. Initial trust between owner and contractor stems from the competency driven based on prequalification, cognition driven based on cooperation experience and value driven based on market reputation. The dynamic characteristics of risk allocation may be reflected by the initial risk allocation in contracting stage and risk re-allocation in contractual stage. The two stages have obvious comovement based on the post-support system. From the perspective of influence relation, trust has a reverse impact on the complete degree of initial risk allocation, but it has the positive impact on post-support system. Additionally, trust has positive impact on the scale of risk re-allocation and implementation efficiency.