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Lucy Arendt, Katherine Johnson, Siamak Sattar, Michael Valley, Divya Chandrasekhar, Laurie Johnson, Ryan Kersting
Held in October 2024, the Workshop on Functional Recovery Performance Targets was hosted by the National Institute of Standards and Technology (NIST) and managed by the Applied Technology Council (ATC-169). The workshop convened 48 interdisciplinary
Aspasia Nikolaou, Angelos Tsatsis, Maria Antoniou, Juan Fung, Yalda Saadat, Fani Gelogoti, Rallis Kourkoulis, Steven McCabe
The United States (US) faces significant challenges in maintaining and modernizing its aging infrastructure, particularly in the transportation sector, which includes roadways, bridges, rail, air, ports, and pipelines. Infrastructure vulnerabilities
Sherief Elsibaie, Yating Zhang, Juan Fung, Dustin Cook, Siamak Sattar, Peter Morris, Henry Burton, David Welch, Kamiar Anaraki
This report details the development of different structural design building archetypes and other seismic enhancements, the cost estimation process applied to those archetypes, and the economic implications and estimation of differing functional recovery
Sergio Brena, Wassim Ghannoum, Insung kim, Siamak Sattar
This document contains provisions for the design and detailing of fiber reinforced polymer (FRP) systems used to jacket concrete columns in seismic retrofit applications. Provisions to determine load-deformation parameters used for linear and nonlinear
In the U.S., building codes and standards have been developed to reduce the likelihood of building collapse but do not address the loss of building functions or recovery times due to earthquakes. When scaled to the community level, negative consequences
Executive Order (EO) 13717: Establishing a Federal Earthquake Risk Management Standard establishes minimum seismic requirements for new and existing buildings that will be constructed, altered, leased, financed, or regulated by the Federal Government
This research brief provides a research summary and research advancement details for the functional recovery post-earthquake performance objective being advanced by NIST's Engineering Laboratory. A current update on the status of functional recovery
Larry Fahnestock, Shitao Shi, Rafael Sabelli, Matthew Speicher
Although ductility is a foundational attribute of seismic design, it is not sufficient to provide seismic stability. Instead, persistent positive stiffness that obviates the destabilizing effects of gravity is the essential attribute that prevents
Designing buildings for improved functional recovery represents a major shift in the current design paradigm. Given the novelty of the functional recovery building performance objective, current design provisions may be ineffective at controlling the
As part of the ACI 374A Subcommittee on Design of Reinforced Concrete Structure for Functional Recovery, the authors held six expert panel discussions with experts in various aspects of building design and construction. The goal of the discussions was to
As building codes in the United States move toward the development of functional recovery provisions aimed at reducing recovery times following earthquakes, it is critical to benchmark how buildings designed following life-safety provisions perform in
In the field of structural engineering, functional recovery is a new, but non-standardized building design objective intended to improve a building's capacity to maintain or rapidly restore basic intended functions after a hazard event, such as an
Buildings repetitively framed with cold-formed steel (CFS) members often possess significant lateral overstrength due to contributions from components beyond the designated sheathed or strap-braced shear walls, including from the gravity framing, non
Buildings in seismic regions are designed to sustain significant damage during major earthquakes with collapse. Traditional linear design procedures use a force-based approach to size the building structural members. Alternatively, performance-based
In a building, seismic stability is provided when the internal restoring forces resist the effective earthquake forces plus the destabilizing effects of gravity that arise when the building displaces laterally. Although this concept can be succinctly
Matthew Speicher, Mohammadamin Hariri Ardebili, Siamak Sattar
Earthquake reconnaissance trips have become the norm following major seismic events. Traditional approaches to data collection involve gathering photographs, structural measurements, and notes on qualitative damage. While these traditional activities
Craig Davis, Andrew Herseth, Katherine Johnson, Ayse Hortacsu
Services provided by lifeline infrastructure systems are critical to the recovery of social functions after an earthquake. Lifeline infrastructure includes water, wastewater, drainage, electric power, communications, gas and liquid fuels, solid waste, and
Cemalettin Donmez, Jeff Dowgala, Meltem Eryilmaz-Yildirim, Muhammet Fethi Gullu, Lissette Iturburu, Fahri Baran Koroglu, Remy Lesquesne, Baki Ozturk, Santiago Pujol, Julian Rincon, Chungwook Sim, Matthew Speicher
A survey was conducted across 10 cities in Southeast Türkiye to classify damage in 242 reinforced concrete (RC) buildings constructed in the last 15 years, ranging from 2 to 16 stories. The 'robustness' of these buildings was quantified using ratios of
Yating Zhang, Juan Fung, Dustin Cook, Katherine Johnson, Siamak Sattar
This paper reviews the state of the art in using benefit–cost analysis (BCA) to inform earthquake risk reduction decisions by building owners and policymakers. The goal is to provide a roadmap for the application and future development of BCA methods and