Seismic Waves: Putting It All Together   [open pdf - 443KB]

Seismic Waves is a newsletter published by the National Earthquake Hazards Reduction Program [NEHRP]. "During April--May 2012, an unprecedented series of tests was conducted on the largest outdoor shake table in the world, located at the University of California, San Diego (UCSD) Englekirk Structural Engineering Research Center. A full-scale building fully outfitted with a variety of common nonstructural components and systems (NCS) was subjected to realistic earthquake ground motions to examine in detail the seismic performance of NCS. These landmark tests generated a one-of-a-kind set of experimental data that will be used to reduce damage to NCS in future earthquakes. The tests were the centerpiece of an ongoing, multiyear project led by researchers from UCSD, San Diego State University, Howard University, and Worcester Polytechnic Institute. As better building codes and standards have made the load-bearing, structural systems in new buildings safer and less susceptible to collapse, damage to their non-structural systems has emerged as a dominant source of potential earthquake-related losses in them. NCS include a building's mechanical, electrical, and plumbing systems, architectural components, and contents. Recent earthquakes have shown that even moderate levels of ground shaking can produce NCS damage that exposes occupants to hazardous conditions, is costly to repair, and results in building downtime and indirect losses."

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National Earthquake Hazards Reduction Program: http://www.nehrp.gov/
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Seismic Waves (November 2012)
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