This program addresses the gap between basic research and building codes, standards, and practice through measurement science research to: (1) predict structural performance up to failure under extreme loading conditions: (2) assess and evaluate in-situ structural capacity using novel, smart sensing metrology and the ability of existing structures to withstand extreme loads; (3) design new buildings and retrofit existing buildings using cost-effective, performance-based methods; and (4) derive lessons learned from disasters and failures involving structures. The program enhances the robustness of structures by focusing primarily on cross-cutting research topics including prevention of disproportionate collapse and disaster and failure studies, along with the specific hazards of extreme winds and coastal inundation. This program also carries out statutory activities required for the implementation of the National Windstorm Impact Reduction Act (2004). The 2015 reauthorization of the National Windstorm Impact Reduction Program (Public Law, PL 114-52) directed NIST to perform as Program Lead Agency.
To develop and deploy advances in measurement science to enhance the robustness of buildings and infrastructure to natural and manmade hazards.
What is the technical idea?
The fundamental new idea is that structural robustness can be significantly enhanced by developing reliable capabilities to predict the effects of hazards on the performance of buildings and infrastructure. This will be achieved by developing: (1) measured data to characterize the hazard environment; (2) validated physics-based models to predict performance of structures to failure; (3) metrics, tools, and methodologies for measuring in-situ structural capacity and evaluating structural performance; (4) acceptance criteria for differing levels of performance objectives; and (5) mitigation strategies based on evaluated performance. The scope of this program encompasses structural performance under aging effects, extreme winds, including tornadoes, coastal inundation, mitigation of disproportionate collapse, and experimental structural research to advance the development of performance-based design standards.
What is the research plan?
The program consists of three research thrusts:
(1) Develop validated tools that predict structural performance to failure under extreme loading conditions. This research thrust consists of three elements:
(2) Develop validated tools to assess and evaluate the capabilities of existing structures to withstand extreme loads. This research thrust consists of three elements:
(3) Develop performance-based guidelines for cost-effective design of new buildings and, where warranted, rehabilitation of existing buildings. This research thrust consists of four elements:
Some recent accomplishments in the area of Disaster and Failure Studies include:
A recent accomplishment in the area of Implementation of Joplin Tornado Recommendations: