SEAOA

STRUCTURAL ENGINEERS ASSOCIATION OF ARIZONA

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Tucson Chapter Lunch Meeting: Foundation Repair of San Francisco's Millennium Tower

When
21 May 2025
11:30 AM - 1:00 PM
Location
Lodge on the Desert, Catalina Room, 306 N. Alvernon Way, Tucson, AZ 85711

Registration

Non-Member – $40.00
Student – $5.00
Must present student ID at meeting.

Tucson Chapter Lunch Meeting:

Foundation Repair of San Francisco's Millennium Tower

San Francisco’s Millennium Tower is a 58-story luxury condominium building developed between 2005 and 2009. Over the next ten years, the structure settled more than 18 inches and tilted a similar amount, resulting in litigation. To address these issues, SGH designed a unique structural upgrade, which involved installing 52 piles along the building’s north and west sides extending to bedrock to arrest further settlement and provide for gradual recovery of tilting. Completed in September 2023, the upgrade has proven effective. Mr. Hamburger will describe the structural and geotechnical analyses performed, and the retrofit details.

Presented by:

Ron Hamburger, PE, SE

Consulting Principal

Ron Hamburger has more the 50 years of structural engineering experience including design, education, failure investigation, and research. He is an internationally recognized expert in performance-based earthquake and force protection engineering and has played an active role on the professional committees that develop the structural provisions of U.S. building codes. He was a member of the federal team that investigated the collapse of New York’s World Trade Center towers following the 9/11 terrorist attacks. He is a past President of the National Council of Structural Engineering Associations, the Structural Engineers Association of California and of Northern California, and the Structural Engineering Certification Board. His awards include ASCE’s Newmark medal and Walter P. Moore awards, and AISC’s Higgins award. A fellow of the Structural Engineering Institute, he is also a member of the National Academy of Engineering.

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TBD

Vegetarian Option upon Request

Please join us!