Jacobs School Celebrates Opening
of Englekirk Structural Engineering Center

By Denine Hagen I April 11, 2005

Shake Table Breaks the Ribbon. Length: 00:12 Chancellor Marye Anne Fox thanks supporters of the Englekirk Center. Length: 2:08 Dean Frieder Seible describes the Center's structural engineering research facilities. Length: 7:30 Robert Englekirk tells his vision for earthquake engineering research. Length: 7:15 Powell Foundation President Joel Holliday remarks on the genesis of the UCSD Powell Laboratories. Length: 2:52 Laboratories at the Englekirk Center UCSD-NEES Outdoor Shake Table At 25 feet by 40 feet, the world's first outdoor shake table is also the largest shake table in the United States - able to test structures weighing up to 2,200 tons and as tall as 100 feet. Because there is no roof over the shake table, workers can use heavy equipment to construct full-scale buildings and structures, allowing researchers to physically validate construction systems that have previously been analyzed only through computer models. With its powerful hydraulic actuators, capable of shaking at speeds up to 6 feet per second, the shake table is able to create realistic simulations of the most devastating earthquakes ever recorded. The shake table is part of the National Science Foundation's George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES). Soil Foundation-Structure Interaction Facility (SFSI) With its two refillable soil pits, laminar soil sheer box, and two reaction walls, this will be the nation's largest facility for testing soil-structure reactions to earthquakes and other natural disasters. Researchers will be able to tailor soil properties to simulate conditions in specific geographic regions, and to analyze soil-related phenomena caused by earthquakes such as liquefaction and lateral spreading. The facility is located adjacent to the UCSD-NEES outdoor shake table, which will allow for full-scale testing of systems such as bridge abutments and pile foundations. Blast Simulator Key to the nation's homeland security efforts, the UCSD blast simulator is the first facility to produce repeatable, controlled blast load simulations on full-scale columns, walls, and other structural components. The simulator recreates the speed and force of explosive shock waves through servo-controlled hydraulic actuators that punch test specimens at 50 mph in 1-2 millisecond pulses. The facility can simulate a wide range of blast scenarios from the equivalent of 50 pounds of TNT detonated within a few feet of a structure, to as much as 5,000 pounds of TNT detonated from 100 feet away. Researchers will use the simulator to characterize blast effects on structural systems and to evaluate technologies for hardening buildings and bridges against terrorist bomb attacks.

More than 300 industry supporters, government representatives, faculty, students and friends gathered April 7 to celebrate the dedication of the Englekirk Structural Engineering Center at the Jacobs School of Engineering. The center is named in honor of Robert and Natalie Englekirk, who recently provided a $1.5 million gift for research, fellowships and scholarships for structural engineering students.

The Englekirk Center is located on Pomerado Road and I-15, eight miles east of UCSD's main campus. The center includes three newly completed structural testing facilities, including the world's first outdoor shake table, the country's largest soil-structure interaction facility, and the world's first blast simulator for studying the effects of bomb blasts and testing technologies to harden structures against terrorist bomb attacks. The center is an expansion of the Charles Lee Powell Structural Research Laboratories at UCSD, known worldwide for large-scale seismic safety tests of buildings and bridges.

"What we are talking about here is protecting people and property against natural and manmade disasters, and focusing the resources brought together by a research university to accomplish just that," Chancellor Marye Anne Fox told the crowd during the dedication ceremony. "We are so proud of our partners who have given so generously to make this facility a reality. Thank you for your support."

Structural engineering faculty with the Englekirks and Chancellor Fox

Following the formal remarks, guests donned hardhats to watch as UCSD officials used the shake table itself for the ribbon breaking ceremony. The Englekirk's grandchildren then led the countdown to a live demonstration of the blast simulator. After the ceremony, guests viewed the damage to the reinforced concrete column test specimen, toured the hydraulic pump house, and ventured into the tunnel leading from the pump house to the underbelly of the shake table.

"These new facilities seal UCSD's position as the foremost structural testing center in the country," said Frieder Seible, dean of the Jacobs School of Engineering dean and Reissner professor of structural engineering. "None of this could have been possible without the support of Bob and Natalie Englekirk. Bob is a true collaborator, colleague and friend. We respect his efforts to push the state of the art in earthquake engineering to the next level."

Blast demonstrate set-up, after shake demonstration.

"This center is a milestone in terms of structural engineering," said Robert Englekirk. "Our philosophy for seismic engineering has been developed largely from testing components of buildings on Tinker Toy-sized shake tables. This new outdoor shake table is going to allow us to fine tune our design procedures and confirm that they are indeed valid."

In addition to his and Natalie's personal contribution, Robert Englekirk has engaged 45 companies and organizations among southern California's building industry to participate on an advisory board and to contribute more than $1 million to support research at the Englekirk Center.

"I couldn't be more proud of my industry colleagues than I am today," said Englekirk. They are forming a great working partnership with the structural engineering faculty at UCSD."

Spectators gather for the ceremony and shake table demonstration.

One of the first industry-supported projects at the center will be on a full-scale, seven-story concrete building that is being constructed on the outdoor shake table. With the goal of increasing earthquake safety while at the same time reducing construction costs, UCSD structural engineering and industry partners will perform a series of dynamic earthquake tests on a seven-story building. The tests will evaluate new reinforced concrete construction systems for medium-rise residential buildings, such as condominiums, hotels and apartments. The testing program is particularly targeted to housing needs in densely populated seismic regions in Los Angeles and Southern California.

Robert Englekirk is the founder of the Englekirk Companies, which has been responsible for the structural design of more than $100 billion worth of construction projects including two Los Angeles landmarks: the billion-dollar Getty Center and the Hollywood and Highland entertainment and shopping complex with its centerpiece Kodak Theatre. Englekirk was also the structural engineer for San Diego's Emerald Plaza Center and Horton Plaza shopping complex. He is an adjunct professor of structural engineering at UCSD and serves on the Jacobs School Dean's Council of Advisors. Since retiring from the day-to-day running of his companies in 2001, Englekirk has spent much of his time teaching and writing. He is the author of several seminal works in structural design and earthquake-resistant engineering.