FEMA Media Library
Repair of damaged buildings is critical for community recovery after earthquake disasters, and in turn, for overall resilience. NEHRP has had statutory requirements to use research results, new knowledge, and lessons learned evidence to support the preparation, maintenance, and wide dissemination of seismic resistant design guidance for more than 40 years. The 1998 FEMA 306, 307, 308 suite of guidance, Evaluation of Earthquake Damaged Concrete and Masonry Wall Buildings, provided a groundbreaking framework for detailed engineering assessments of residual strength in earthquake damaged concrete wall buildings and set the state of practice for seismic structural engineering in the US for more than 20 years. This new document provides the next-generation methodology for assessing and repairing earthquake-damaged buildings. Findings and research completed in New Zealand after the 2011 Christchurch Earthquake, as well as new information and an evolving understanding of the effects of damage to structural components that have experienced strong shaking and their residual capacities for future earthquakes, prompted a review and update of the original FEMA documents. The result defines more accurate way of determining when only cosmetic repairs are needed, structural repairs are required for safety, and repairs and retrofit are required for safety. This work was conducted by highly respected members of the seismic structural engineering communities in the United States and New Zealand and has the potential to significantly reduce a community’s recovery time and costs after an earthquake disaster.