Title: Development of Next Generation Performance-Based Seismic Design Procedures for New and Existing Buildings
Client: Federal Emergency Management Agency (FEMA)
Status: Initial phase (ATC-58 Project) commenced in 2001 and was completed in 2007. The ATC-58-1 Project commenced in 2006 and was completed in 2012. Final reports and associated products are available for download.
Participants: To see a list of project participants, click here.
- FEMA P-58-1, Seismic Performance Assessment of Buildings, Volume 1 - Methodology (pdf file is ~9 MB)
- FEMA P-58-2, Seismic Performance Assessment of Buildings, Volume 2 - Implementation Guide (pdf file is ~32 MB)
- FEMA P-58-3, Seismic Performance Assessment of Buildings, Volume 3 - Supporting Electronic Materials and Background Documentation:
- 3.1 Performance Assessment Calculation Tool (PACT) Version 2.9.65 (zip file is ~13 MB)
- 3.2 Provided Fragility Data (zip file is ~50MB)
- 3.3 - 3.6 Spreadsheet tools (zip file is ~5MB)
- 3.7 Technical Background Documentation (zip file is ~30MB)
- 3.8 Structural Background Documentation (zip file is ~80MB)
- 3.9 Nonstructural Background Documentation (zip file is ~70MB)
In 2001, the Applied Technology Council (ATC) was awarded the first in a series of contracts with the Federal Emergency Management Agency (FEMA) to develop Next-Generation Performance-Based Seismic Design Guidelines for New and Existing Buildings. These projects would become known as the ATC-58/ATC-58-1 Projects. The principal product under this combined 10-year work effort was the development of a methodology for seismic performance assessment of individual buildings that properly accounts for uncertainty in our ability to accurately predict response, and communicates performance in ways that better relate to the decision-making needs of stakeholders.
ATC - 58-1 PROJECT SUMMARY
This project completed the development of a methodology for seismic performance assessment of individual buildings in September 2012. The final products are available for download above.
The provided volumes together describe the resulting methodology, as well as the development of basic building information, response quantities, fragilities, and consequence data used as inputs to the methodology. To allow practical implementation of the methodology, work included the collection of fragility and consequence data for most common structural systems and building occupancies, and the development of an electronic Performance Assesment Calculation Tool (PACT) for performing the probabilistic computations and accumulation of losses.
ATC - 58 PROJECT SUMMARY
Phase 1 of the project focused on a review and updating of the program plan presented in the FEMA-349 Action Plan for Performance Based Seismic Design, which defines the work necessary to develop the following series of products: Structural Performance Products, Nonstructural Performance Products, Risk Management Products, Design Guidelines, and Stakeholders Guidelines. The principal outcome of the Phase 1 effort was a revised program plan, which was published and released in August 2006 as FEMA 445, Next-Generation Performance-Based Seismic Design Guidelines, Program Plan for New and Existing Buildings.
Phase 2 of the project commenced In 2003, focusing on the initial development a methodology for seismic performance assessment of buildings that provides a framework for identifying the probable consequences, in terms of human losses (deaths and serious injuries), direct economic losses (building repair or replacement costs) and indirect losses (time of lost beneficial use of the building for its intended purpose), resulting from building response to ground shaking. Work on Phase 2 was completed in June 2007, with the preparation of the 35% complete draft of the Performance Assessment Guidelines, and a companion electronic Performance Assessment Calculation Tool (PACT). This work also resulted in the development of FEMA 461, Interim Testing Protocols for Determining the Seismic Performance Characteristics of Structural and Nonstructural Components, published and released in June 2007.
RELATED PROJECTS AND REPORTS
The National Science Foundation (NSF) George E. Brown, Jr., Network for Earthquake Engineering Simulation (NEES) is funding the NEES Nonstructural Grand Challenge project studying the seismic performance of nonstructural systems including integrated ceiling systems, piping systems, and partitions. Information from this project has been incorporated into the developing methodology for seismic performance assessment of buildings.