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April 2024 #16297 Page #108
The NHERI TallWood Project By Simpson Strong-Tie Staff
Q & A with Steve Pryor, P.E., S.E., Senior Manager, Testing and Research Operations, Engineering, Simpson Strong-Tie
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s a research partner in the National Hazards Engineering Research Infrastructure (NHERI) TallWood project, Simpson Strong-Tie participated in a series of earthquake shake table tests conducted at the University of California, San Diego (UCSD).
Funded by the National Science Foundation (NSF) and led by Dr. Shiling Pei of the Colorado School of Mines, the NHERI TallWood project simulated a series of large seismic events and their effects on a full-scale, 10-story mass timber building — the tallest building ever tested on a shake table. With more than 100 tests completed, Steve Pryor, Senior Manager of Testing and Research Operations at Simpson Strong-Tie, shared his insights about the project. Q: What was the main research objective of NHERI TallWood? A: The objective of the NHERI TallWood project was to develop mass timber seismic lateral-force-resisting systems for tall wood construction. More specifically, to develop resilient seismic design methodologies for tall timber buildings in earthquake-prone regions. Q: How were the earthquake shake tests conducted? A: A series of tests were conducted at the Englekirk Structural Engineering Center at UCSD. This is where the world’s largest outdoor shake table is located, along with one of the two biggest earthquake simulators. The shake table tests simulated motions that were recorded during historic earthquakes and covered a range of magnitudes from four to nine. The NHERI TallWood test structure, a 10-story mass timber building, is the tallest building ever tested on a shake table. Continued next page
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