September 2017 Chapter Meeting

Global Earthquake Disasters and Solutions for California

Speaker: Dr. Tsutomu “Tom” Nifuku, Miyamoto International, Inc.

When: September 28, 2017 | 6 PM

Where: Miyamoto International , Inc. | 1450 Halyard Dr # 1, West Sacramento, CA 95691

The impact of earthquake disasters is a growing issue globally. Nearly 40 percent of the world and more than one billion people live in areas that experience major earthquake disasters, resulting in large numbers of casualties and placing a huge burden on economies. How can the public better prepare for and overcome the many challenges of earthquake disaster?  Read more

August 2017 Chapter Meeting

Unified Design Method (aka Neutral Plane Method) for piles in liquefied soils

Speaker: Tom Farrell, Farrell Design Build

When: August 24, 2017 | 6 PM

Where: Kleinfelder, 2882 Prospect Park Dr. Suite 200, Rancho Cordova, CA 95670

Traditional design of piles in liquefied soils has typically used downdrag forces to account for the effect of liquefaction on piles. However, recent research by Fellenius and others has indicated that downdrag may be more appropriately accounted for using a neutral plane methodology (Unified Design Method). Research indicates that this methodology may more appropriately represent actual in-situ conditions impacting piles following the onset of liquefaction, and can provide more realistic and less conservative designs. Farrell will present a brief overview of the methodology followed by an in depth look at the details and advantages of the analysis approach.

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July 31st, 2017 – Stakeholder Training Workshop

April 2017 Chapter Meeting

When: April 27, 2017 | 6 PM
Where: California State University, Sacramento | Santa Clara Hall (SCL) 1207

California’s New Earthquake Early Warning System – And Why We Are Different

Speaker: John G. Parrish, PhD | California State Geologist | California Geological Survey

California is the most seismically active state in the nation after Alaska; however, California is the most populous state with 39 million inhabitants, and has created the World’s 6th largest economy atop the nation’s shakiest ground. Because of California’s geological structure, geographic features and population spread, the State faces some unique challenges in bringing about a useful Earthquake Early Warning System.

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March 2017 Chapter Meeting

When: March 23, 2017 | 6 PM
Where: Kleinfelder, 2882 Prospect Park Dr. Suite 200, Rancho Cordova, CA 95670

Earthquake Strong Motion – Measurement to Analysis

Speaker: Anthony Shakal, PhD | California Strong Motion Instrumentation Program | California Geological Survey

The measurement of strong shaking during damaging earthquakes is critical to the improvement of structural resilience and to guiding post-earthquake emergency response. The CGS Strong Motion Instrumentation Program measures the strong motion of buildings, bridges, dams and ground response sites. CSMIP has developed an extensive network of 1300 stations, beginning after the damaging 1971 San Fernando earthquake, which includes 230 well-instrumented buildings (70 are hospitals), 80 bridges and 900 ground response stations (35 are downhole geotechnical arrays). Read more