Earthquake Loss Estimation Methodology ForPrioritizing Seismic MitigationAt Federally Owned Facilities

摘要

As a part of the implementation of the Executive Order (E. O.) 12941 requirements, the affected United StatesFederal Agencies submitted reports to Federal Emergency Management Agency (FEMA) on 12-1-1998, identifying likelyseismically vulnerable buildings within their complex (based on the E. O. evaluation criteria), together with an estimate ofcosts to mitigate the seismic risks. Based on data collected from Federal agencies, FEMA was expected to prepare a reportfor US Congress, recommending funding, priorities, and schedule for seismic mitigation. The actual rehabilitation ofbuildings was proposed for completion over 30 years. However, a prioritization and mitigation plan need to be developed tooptimize the use of limited resources.FEMA funded methodology has been developed known as HAZUS 99 to estimate the extent and probability ofdamage to the building due to a scenario earthquake. In this approach Capacity Spectrum Method (CSM) is recommended topredict inelastic building displacements for damage estimation. This paper addresses the application of HAZUS 99methodology to develop earthquake loss estimates for buildings, and details how it can be used for prioritizing the seismicmitigation of buildings.