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Home > News > UC Berkeley-PEER shaking table turns 50
Shaking table at UC Berkeley's Richmond Field Station in early 1970s.Shaking table at UC Berkeley's Richmond Field Station in the early 1970s. (Photo courtesy Berkeley Engineering)

UC Berkeley-PEER shaking table turns 50

June 22, 2022

On June 24, the Pacific Earthquake Engineering Research Center (PEER) will celebrate the 50th anniversary of its shaking table. The 20’x20’ reinforced concrete table, located at the Richmond Field Station, has been helping UC Berkeley engineers advance seismic research since it was unveiled in 1972 as the world’s first modern shaking table.

The shaking table remains the largest six-degrees-of-freedom table in the country, capable of moving in three translational degrees and three rotational degrees to simulate earthquake-like movement. It also can be programmed to reproduce any wave form within the capacities of the system and has tested specimens weighing up to 150,000 pounds.

  • 01_NM0658_1972_Stephen
    Shake table at UC Berkeley's Richmond Field Station in Richmond, Calif. in 1972. (Berkeley Engineering photo)
  • 02_NM0638_1972_Stephen
    Shake table at UC Berkeley's Richmond Field Station in Richmond, Calif. in 1972. (Berkeley Engineering photo)
  • 03_NM0648-dimensions
    Design schematic of the shake table at UC Berkeley’s Richmond Field Station in Richmond, Calif. in 1972. (Berkeley Engineering photo)
  • 05_NM0664-1972
    Shake table at UC Berkeley's Richmond Field Station in Richmond, Calif. in 1972. (Berkeley Engineering photo)
  • 06_NM0650-ruck-a-chucky-bridge
    Ruck-A-Chucky Bridge model being tested on the shake table at UC Berkeley's Richmond Field Station in Richmond, Calif. (Berkeley Engineering photo)
  • 07_NM0672
    Shake table at UC Berkeley's Richmond Field Station in Richmond, Calif. (Berkeley Engineering photo)
  • 08_NM0674
    Shake table at UC Berkeley's Richmond Field Station in Richmond, Calif. (Berkeley Engineering photo)
  • 09_NM0702_steel-frame
    Shake table at UC Berkeley's Richmond Field Station in Richmond, Calif. (Berkeley Engineering photo)
  • 10_wideshot_2001
    Shake table at UC Berkeley's Richmond Field Station in Richmond, Calif. on Dec. 12, 2001. (Photo by Peg Skorpinski)
  • 11_KhalidMosalam_w_Reporters_2001
    Khalid Mosalam speaks with reporters on the shake table at UC Berkeley's Richmond Field Station in Richmond, Calif. on Dec. 12, 2001. (Photo by Peg Skorpinski)
  • 12_IMG_2224_2008.JPG
    Water tank testing on the shake table at UC Berkeley's Richmond Field Station in Richmond, Calif. on Dec. 18, 2008. (Berkeley Engineering photo)
  • 13_20220321_E4C_AVL_0168
    Oakland High School students tour the Pacific Earthquake Engineering Research facilities. The tour is part of the CEE department's new program, Engineering for Change, developed as part of CEE's broader initiative in Community-Engaged Education. (Photo by Adam Lau/Berkeley Engineering)
  • 14_20220321_E4C_AVL_0487
    Amarnath Kasalanati, PEER associate director, leads Oakland High School students on a tour of the shake table facility on March 21, 2022, as part of the Community-Engaged Education (CEE²) initiative. The program focuses on experiential learning, in the form of hands-on demonstrations and experimentation, to introduce students to engineering topics that are relevant to their communities. (Photo by Adam Lau/Berkeley Engineering)

The table has been pivotal in proof-of-concept tests for isolators, energy dissipation devices and building systems, as well as anchoring and bracing systems — leading to improved construction standards and technologies. As a result, airports, hospitals, essential bridges and government buildings have been retrofitted or newly designed with response modification devices that will significantly reduce structural and non-structural damage and allow operations to resume quickly after an earthquake.

A model for shaking tables around the world, Berkeley’s table was originally designed by civil engineering professor Joseph Penzien, with the assistance of fellow faculty member Ray Clough; researcher Dixon Rea also played a significant role in the table’s early development and operation.

Learn more:

  • Pacific Earthquake Engineering Research Center
  • Simulating Earthquakes with a Shaking Table (article and video by KQED)
Topics: Civil engineering, Infrastructure
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