Dynamic Assessment Model of Construction Safety Management Based on SPA and Markov Chain

the set pair analysis method that deal with uncertain problem of system and Markov chain theory that research the transition law of system state was appled to establish the dynamic assessment model for safety management of bridge construction. Taking a bridge construction project as an example, this paper conduct a dynamic assessment through five time intervals and come to a conclusion that the assessment results are general and they need rectification, but the system state is developing into a favourable level. And the evaluate results verify the rationality of the model.