Hazard identification, risk analysis and risk assessment on high-rise building construction project

摘要

High-Rise Building (HRB) construction project has complicated the structural design, complexity of work and potential risks in project work. Project risk can obstruct the project activities and achievement. The objectives of this paper are to identify the risks of technical and construction management, allocate the risk to appropriate parties, namely owner, contractor, and shared (owner and contractor), and assign the risk response to dominant risk in the HRB project. Identification of risk was conducted through literature study and validation of the preliminary survey. The risks analysis based on the results of main survey was carried out with severity index method combined with matrix of impact probability. The dominant risks were allocated to the contractor, owner and shared. The results showed that there are eight risks in time impact and seven risks in cost impact from 35 variables of risk. The main impact to time and cost is the low level of productivity.