建筑施工活动的复杂性、分散性以及人员的流动性导致传统强调安全管理和安全遵守的方法在降低安全事故率方面并未达到期望效果，其主要原因是缺乏员工的互动参与和组织协调。社会资本理论认为组织或个体之间存在的支持、信任、沟通及非正式规范等对其行为具有积极影响，进而提高组织和个体之间的协同能力。但社会资本对建筑施工组织和员工个体的作用并未得到广泛关注。 因此，本项目以社会资本理论为基础，从结构、关系和认知三个维度探究建筑施工主体的社会资本构成与测度，以安全能力为中介变量，剖析社会资本对组织/个体安全能力及安全行为的作用机理，探讨社会资本对组织/个体协同行为的调节作用，通过仿真发现主体安全行为与社会资本积累的动态演化规律。在此基础上，构建决策模型并进行验证。研究成果为提高施工组织和工人的安全行为水平提供理论支持，并进一步完善建筑安全管理理论。

Abstract: the complexity, decentralization and mobility of construction result out that the traditional methods of safety management and safety compliance don’t have a good effect on construction safety accident rates reduction, and the main reason is the lack of staff interaction and participation and organization coordination. The theory of social capital proved that the support, trust, communication and inform norms among organizations and individuals play a positive role on subjects’ behavior, and improve their cooperative capability, however the importance of social capital on construction organization and workers doesn’t get extensive attention. Therefore, based on the theory of social capital, the project analyzes the construction objects social capital components and measurement from structural dimension, relational dimension and cognitive dimension, adapts safety capability as a mediating variable and analyzes the relationship between social capital and safety behavior, and the regulating effect of social capital on organization and individuals cooperation, and explores the dynamics evolution rule of safety behavior and social capital accumulation. Based on this, builds the decision model and examines the model by practical examples, the results provide support on improving construction organization and workers safety behavior level, and improve the theory of construction safety management.