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Exactly 32 years after its largest earthquake, Mexico City sustained extensive damage from a combination of trepidatory and oscillatory quakes. On Sept. 19, 2017, the combined 7.1 and 8.2 Richter scale measurements made the 2017 quake the second largest in Mexican history. Despite new, seismic...

The process of evaluating and designing the retrofit of existing buildings differs from the conventional structural design of new buildings. The current state-of-the-art analysis and design approach for the seismic evaluation of existing buildings is founded on a performance-based philosophy. There...