30th UJNR Meeting

PEER's administrative headquarters at the University of California's Richmond Field Station welcomed participants in the 30th U.S.-Japan Natural Resources (UJNR) Meeting on May 19. Jack Moehle, professor of civil engineering and PEER director, provided the introduction to the meeting, which was hosted by NIST, the U.S. National Institute of Standards and Technology.

Brief presentations on seismic research followed the introduction. The topics included "Repair of Moderately and Severely Damaged Bridge Columns," by Dawn Lehman; "Earthquake Simulator Tests of Soil-Pile Interaction," by Professor Raymond Seed; and "Protective Systems Research," by Professor Gregory Fenves.

After the presentations, meeting participants visited the Earthquake Simulator Laboratory to watch a demonstration of PEER's newly upgraded shake table, one of the largest and most sophisticated earthquake engineering testing devices in the world.

The visitors then took a short drive to the main Berkeley campus for a presentation on the campus's seismic review by Professor Nicholas Sitar.

UJNR participants were able to observe first hand a static representation of fault movement on the Hayward fault. The fault cuts through the university football stadium from goalpost to goalpost to create the effect of part of the stadium "traveling" north while the rest "travels" south.

UJNR bridges across Hayward fault (Photo by Keiichi Tamura)