中文摘要：

已有研究表明，工程中的信任是项目成功的重要因素，因此描述工程项目中合同双方的信任状态是项目实施中的重要环节。在DBB模式下，以文献研究为基础，总结出表征工程信任的关键事件；以基于内容分析的访谈为工具，识别出可测量信任状态的抓手，明确了合同双方的信任状态表现。据此，以项目全过程为视角，构建了合同双方信任状态的动态提升模型。研究表明，利用信任状态抓手对合同双方的信任状态进行客观测量，有利于双方明确了解对方的信任水平，并对己方采用的各种改善信任状态的措施效果进行判断，以提升项目成功的概率。

英文摘要：

Previous studies suggest that trust is a key factor in success of construction projects, and how to describe the trust state between the owner and contractor of a construction project is a very important part of project implementation. This paper summarizes the previously reported key events that represent trust in the DBB mode, and recognizes grips that can measure trust state using the data of interviews and a content analysis method, focusing on clarification of the contract parties＇ behaviors of trust state. Based on this, we develop a dynamic elevation model of owner-contractor trust state for the overall process of a construction project. The results have shown that the trust grips, as a measure of trust state, can help contacting parties understand better the partner＇s trust level and judge the effectiveness of various measures for improving the trust state, thus promoting the probability of project success.