PROBABILISTIC RESPONSE SIMULATION AND REGIONALVULNERABILITY DETERMINATION USING RESPONSE SURFACEMETAMODELS

摘要

This research presents an alternative means of calculating vulnerability relations for buildings.Simulation-based fragility curves generated using a Monte Carlo simulation are usually not practicalbecause of the large number of time-consuming analyses needed to obtain reliable statistics of theoutcomes. This research implements a response surface metamodel to approximate complex analysis in afunction-like manner. Monte Carlo simulation can then be efficiently performed using the metamodel tocalculate fragility. The methodology is implemented in the rapid seismic fragility assessment of ahypothesized building portfolio. Resulting vulnerability relations for each building in the portfolio arepresented.