Abstract: In order to study specific formation path of construction workers' DVB motivation so as to reduce DVBs and accident rate, a four-stage formation path model, namely demand generation, perception adjustment, motivation conflict and externalization feedback, was developed based on GT, and formation mechanism of DVB motivation was explored. The results indicate that realistic needs, like simplifying operation, are the major type of demands underlying occurrence of construction workers' DVB motivation. Risk perception ability mediates formation of motivation, improper value orientation plays a negative reinforcement role in motivation conflict, and support of adverse environment increases probability of motivation externalizing into behaviors. Feedback on behavioral outcome has a two-way effect on motivation formation. Accordingly, in order to suppress generation of DVB motivation, countermeasures are put forward, including redressing workers' short-sighted demand, conducting experiential safety training, strengthening supervision and so on.

Key words: construction worker, deliberate violation behavior (DVB), grounded theory (GT), motivation formation mechanism, sense of danger