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| NEES | |
|---|---|
| Name | NEES |
| Type | Research infrastructure network |
| Established | 2004 |
| Dissolved | 2015 |
| Location | United States |
| Founder | National Science Foundation |
NEES
NEES was a United States-wide network of experimental facilities and cyberinfrastructure focused on earthquake engineering, structural dynamics, and geotechnical engineering. It integrated large-scale physical testing at distributed laboratories with instrumentation, simulation, and shared data resources to accelerate research on seismic performance of structures, lifelines, and soil-structure systems. NEES linked experimentalists, modelers, and educators across universities, national laboratories, and industry to enable collaborative studies of seismic hazards and resilience.
NEES connected academic laboratories, experimental platforms, and a centralized cyberinfrastructure to support multi-institutional experiments, remote collaboration, and shared data stewardship. The network emphasized large-scale shaking table tests, centrifuge modeling, geotechnical centrifuge experiments, hybrid simulation, and field reconnaissance to study behavior under earthquakes. NEES fostered interoperability among institutions such as University of California, Berkeley, Massachusetts Institute of Technology, Stanford University, University of Illinois at Urbana–Champaign, and University of California, San Diego, enabling coordinated research across leading centers in seismic engineering, structural mechanics, and geotechnical engineering.
Established through funding by the National Science Foundation in the early 2000s, NEES emerged from initiatives to modernize national infrastructure for earthquake engineering research. The program built on prior investments at institutions like California Institute of Technology and University of Washington and responded to lessons from events including the Northridge earthquake and the 1994 Los Angeles earthquake. During its operational phase, NEES supported projects involving collaborations with agencies such as the U.S. Geological Survey and organizations including the American Society of Civil Engineers and the Earthquake Engineering Research Institute. NEES’s development paralleled advances at facilities like the Pacific Earthquake Engineering Research Center and initiatives supported by the Department of Homeland Security on resilience and critical infrastructure.
NEES sites hosted specialized experimental platforms: large-scale shaking tables at institutions like University of California, San Diego and Lehigh University; geotechnical centrifuges at Rensselaer Polytechnic Institute and Texas A&M University; quasi-static actuators and structural reaction walls at University of California, Berkeley and University of Texas at Austin; and real-time hybrid simulation setups at University at Buffalo and University of California, Los Angeles. Equipment inventories included high-capacity hydraulic actuators, multi-axis shake systems, high-speed data acquisition from manufacturers partnered with labs, and advanced sensors used in collaborations with agencies like the National Institute of Standards and Technology. NEES facilities enabled experiments on bridges, buildings, tanks, and lifelines similar to systems studied after the Kobe earthquake and the Great Hanshin earthquake.
NEES funded and coordinated projects spanning structural retrofitting, soil-structure interaction, liquefaction studies, and performance-based design methods. Examples include multi-site studies of bridge seismic resilience involving universities such as University of California, Berkeley, University of Washington, University of Minnesota, and Purdue University; centrifuge-based investigations into liquefaction led by Columbia University and Rensselaer Polytechnic Institute; and hybrid simulation campaigns involving Lehigh University and University at Buffalo. NEES-supported work contributed to code-informing research cited by ASCE/SEI 7 committees and standards developed with input from Federal Emergency Management Agency programs. Projects often engaged industry partners like Bechtel and consulting firms that implement seismic design.
A central element of NEES was its cyberinfrastructure: a data repository, remote experiment control, video streaming, and metadata tools enabling reproducible research. The NEES data portal provided persistent storage and DOIs for datasets, promoting reuse by investigators at institutions such as Cornell University, Princeton University, University of Michigan, and University of California, Davis. Cyberinfrastructure work intersected with efforts at San Diego Supercomputer Center and drew on standards from organizations like the Open Geospatial Consortium for geospatial metadata. Emphasis on data curation influenced later programs at National Science Foundation and informed practices in data sharing adopted by engineering communities.
NEES fostered multidisciplinary collaboration among structural engineers, geotechnical specialists, seismologists, and emergency planners from universities, national labs, and professional societies including Earthquake Engineering Research Institute and ASCE. The network supported education through workshops, REU programs, graduate training, and remote participation in experiments for students at institutions such as University of Colorado Boulder, Northwestern University, and Virginia Tech. Outreach included partnerships with state departments of transportation like California Department of Transportation and international collaborations with centers in Japan, New Zealand, and Italy that had experience from the 1995 Kobe earthquake, 2011 Tōhoku earthquake and tsunami, and 2016 Central Italy earthquakes.
NEES left a legacy of open experimental data, interoperable cyberinfrastructure components, and methodologies for distributed large-scale experimentation that influenced successor programs and community practices. Its datasets and documented experiments remain resources for researchers at Massachusetts Institute of Technology, Stanford University, University of California, Berkeley, and beyond, informing seismic retrofit strategies, performance-based design, and risk assessment used by entities including Federal Emergency Management Agency, American Society of Civil Engineers, and state transportation agencies. The NEES model catalyzed subsequent investments in resilient infrastructure research and contributed to the international body of knowledge used in post-earthquake investigations such as those following the 2010 Haiti earthquake and the 2015 Nepal earthquake.
Category:Earthquake engineering