SEISMIC
 

Hazard Study

Rehabilitation Design

   Historic Buildings

   Other Buildings

Peer Review

Risk Assessment

Nonstructural Components

Guidelines

ATC-20 Post-EQ Assessment

Pre-Lease Survey

STRUCTURAL

Building Design

Repair

 
 

Rutherford & Chekene has been involved in the field of articulate, aesthetic and unique seismic strengthening of historic buildings for over 40 years, including nine projects on the National Register of Historic Places. Each of these structures was rehabilitated in accordance with the Secretary of Interior Standards.

The Ferry Building, San Francisco, California: Built in 1896, the monumental Beaux Arts building is a San Francisco landmark. In addition to seismic rehabilitation, this adaptive reuse project involved substantive structural renovation. The central nave has been opened for the 660-foot length of the building to create a three-story, sky lit space for restaurants and retail shops at ground level. The seismic rehabilitation was adapted to special foundation conditions; the Ferry Building is constructed entirely over water.

UC Berkeley Hearst Memorial Mining Building, Berkeley, California: This National Register building, erected in 1907, is of unreinforced brick and granite bearing wall construction. Although it possessed substantial strength, it could not survive the expected ground shaking that would occur at its location 800 feet from the Hayward Fault. The seismic rehabilitation, using base isolation required a minimum of superstructure strengthening, allowing the historic character of the building to be preserved while creating a contemporary teaching and research facility.

California Rehabilitation Center, Building 101, Norco, California: Rutherford & Chekene has provided seismic retrofit services to the California Department of General Services, using FEMA 356 methods, through continuous multi-year contracts starting in 1992. The 204,000 sf Norco Administration Building was erected in 1928 and originally served as a luxury hotel. The seismic strengthening addressed seismically deficient concrete frames infilled with unreinforced masonry by the careful introduction of new concrete wall elements.

Berkeley Public Library, Berkeley, California: The City of Berkeley has successfully undertaken a program of seismically strengthening its key public buildings. This project consisted of the seismic rehabilitation of an existing 37,500 sf building by linking it to a new five-story, 70,000 sf addition. This allowed for the preservation of interior and exterior architectural elements of the building, including the 45-foot tall Reference and Reading Room. The library is on the National Register of Historic Places.

The Frank Lloyd Wright Hanna House, Palo Alto, California: The AIA designated Hanna House as one of “17 buildings designed by Wright to be retained as an example of his contribution to American culture."Built in 1937, the Hanna House was Wright's first foray into hexagonal design module and one of his most sophisticated Usonian projects. Badly damaged by the Loma Prieta earthquake, the house required extensive renovations. The rehabilitation was accomplished under the guiding principal that the restored house should look untouched from its original design. The retrofit scheme involves center coring of the masonry chimneys, new foundation elements, and roofing improvements, together with strengthening the inside of the existing perimeter 2 1/2 inch thick wood walls. A full-size prototype of a strengthened wood wall successfully passed dynamic cycle tests designed to simulate the ground motion produced by the nearby San Andreas Fault.

UC Berkeley South Hall, Berkeley, California: Built in 1873, South Hall is the oldest building in the statewide University of California system and is included in the National Register of Historic Places. To allow preservation of interior and exterior architectural finishes, an innovative rehabilitation method was employed utilizing center-cored reinforcing bars, which were introduced vertically into the unreinforced brick masonry walls.

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