Safety in the Demobilization and Early Occupancy of High-Rise Buildings

摘要

In the case that occupancy begins before construction is complete, the occupants of high-rise commercial and residential buildings are unintentionally involved in a risky situation as a result of zone overlap. A fault tree model is developed to explain the causes of injury to occupants and labourers. This model shows the structure of causal relationships from the top event of failure, which is occupant or labourer injury, to the primary events or causes of the failure. It is comprised of three sub-models which represent injury to occupants due to unsafe stationary activity (unsafe site conditions), injury to occupants due to construction activity, and injury to labourers due to construction activity. The causes of each sub-model are expanded to their respective primary causes. The qualitative analysis of Minimal Cut Sets (MCS) is used to summarize the combinations of basic events that may contribute to the occurrence of the top event.