Seismic Isolation Retrofit of a Historical Cathedral in Haiti

The 2010 Haiti Earthquake devastated the country and resulted in many casualties and enormous damage to infrastructure. Following the event, the authors visited the country, conducted a damage assessment program, and developed retrofit programs. While the bulk of retrofit has focused on traditional upgrade of residential units, seismic protection devices […]

Identifying the Collapse Hazard of Steel Special Moment-Frame Buildings with Viscous Dampers Using the FEMA P695 Methodology

An innovative design using steel special moment frames sized per building code requirements for strength and viscous dampers to control story drift ratios results in longer period structures that limit floor accelerations with excellent performance in design-level earthquakes. However, the response of this design to extreme seismic events is not […]