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Nov 16, 2021 · The Millennium Tower’s foundation consists of a 10-foot or 3-meter-thick concrete slab supported by 950 concrete friction piles driven into the subsurface to a depth of about 80 feet or 24 meters. Friction piles spread out the load of the building vertically, allowing much more of the underlying soils to be used to support the structure without becoming overwhelmed.
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Jun 21, 2023 · Structural Retrofit Finished, Tower Tilting Slightly Less. The $100 million fix to the notoriously sinking and tilting Millennium Tower is completed, and early results show the encouraging ...
- Joe Kukura
Jan 30, 2023 · Workers in the trench along Mission Street prepare the piles and jacks for the initial load transfer operation, part of the perimeter pile upgrade for the 645-ft-tall Millennium Tower. Photo by ...
Feb 22, 2024 · San Francisco’s ill-fated Millennium Tower is making headlines once again for problems taking place beneath its turbulent foundation.. This time, the 58-story skyscraper is sinking even further on its vertical axis as it settles to the north and west, alarming some building scientists who feel the movement could result in significant corrosive damage despite some recent positive corrections.
Jun 18, 2022 · The saga of San Francisco's Millennium Tower continues. An engineering design review of Ronald Hamburger's new plan to only use 18 pilings, vs the prior 52 piling design, found no reason to ...
Jun 21, 2023 · A yearslong retrofit effort to stop San Francisco's Millennium Tower from tilting and sinking is in its final stages has been deemed successful in counteracting the 409-unit condo building's issues.
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Jul 16, 2024 · As indicated in the “Performance Assessment—Movement Patterns Preceding Adjacent Construction—Tower Tilt” section of the original paper, our interpretation of the reason for the initial northward tilt is the nonuniform stratigraphy (i.e., the OBC layer is present at shallower depths on the north side of the tower than on the south side), as shown in Fig. 2 of the original paper.
