Feasibility study of the use of light weight steel structures in high-seismic regions of Iran using modified APRAM method

The use of light steel frame (LSF) structures as the main load-bearing structural system is becoming more popular in the housing industry, especially in low rise residential buildings. This paper discusses the feasibility of using LSF structures in high seismic regions of IRAN using modified advanced programmatic risk analysis and management model (APRAM). This method is capable to address project failure risks simultaneously including cost, time and quality risks over the whole life cycle of a project. The APRAM model is employed to optimize the allocation of budget reserves through trade-offs between technical and managerial failure risks based on the preferences of the decision maker(s). It allows for checking whether technical and managerial risks meet the thresholds of acceptability. LSF system and conventional construction system (CCS) as the two main possible alternatives for construction of an actual two-story building are compared considering all technical and managerial issues. The comparison shows that LSF system is more sustainable and reliable for a residential building