Salesforce Tower: Building San Francisco's Vertical Village | The B1M

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05:41   |   Apr 11, 2018


Salesforce Tower: Building San Francisco's Vertical Village | The B1M
Salesforce Tower: Building San Francisco's Vertical Village | The B1M thumb Salesforce Tower: Building San Francisco's Vertical Village | The B1M thumb Salesforce Tower: Building San Francisco's Vertical Village | The B1M thumb


  • Building a supertall skyscraper in one of the most seismically active regions of North
  • America is not easy.
  • But with San Francisco's booming tech industry demanding ever more high-end office space,
  • engineers had to develop ways to push buildings to new heights.
  • Rising from the corner of First and Mission Streets in San Francisco's South of Market
  • district is the city's tallest structure; the 326m (1,070 foot) Salesforce Tower.
  • When the 853 foot, 260m “Transamerica Pyramid” completed in 1972 it joined the Golden Gate
  • Bridge as a dominant feature on San Francisco’s skyline -
  • and with building heights capped at 550 feet in the 1980s there was little
  • to change the city's profile for over 40 years.
  • But as pressure to densify and revitalise parts of the city has increased, and as the
  • number of technology companies looking to establish headquarters in Northern California
  • has risen - San Francisco’s authorities have relaxed height limits in favour of
  • taller buildings that benefit the public realm.
  • In this case, the rezoning of land for the Salesforce Tower kick-started the USD $2.25BN
  • redevelopment of the adjacent “Transbay Transit Center” - a transport hub for the bay area.
  • The Salesforce Tower is the centrepiece of a wider redevelopment that includes direct
  • connections to the transit centre and access to a 5.4 acre park on its roof.
  • Designed by Pelli Clarke Pelli Architects, the tower stands over 200
  • feet taller than the Transamerica Pyramid - and provides 1.6M square feet of office
  • space across 61 storeys.
  • 55% of the building is occupied by its main tenant; Salesforce.
  • To construct a building of such height on land that was reclaimed using landfill and
  • in a region prone to earthquakes, engineers developed some of the largest foundations
  • ever used in San Francisco.
  • In total, some 42 foundation piles - each over 300 feet (or 100m) in length - were drilled
  • into the underlying bedrock.
  • On top of this, a 14-foot-thick concrete slab extending across
  • the tower’s one acre site was constructed.
  • In total, the foundation slab contains over
  • 2,200 tonnes of steel reinforcement and over 9,000 cubic metres of concrete.
  • It took over 18 hours of pouring and the continuous flow of 1,300 concrete trucks to complete
  • the slab, making it the second largest concrete pour ever carried out in the city - the largest
  • being that for the Transamerica Pyramid back in the 1970s.
  • From these foundations, a high strength concrete core was constructed to support the building’s
  • steel frame.
  • At design stage, the tower’s superstructure model was subjected to 22 different virtual
  • earthquake simulations, drawn from historical seismic data across the region.
  • Based on the results of these simulations, the tower was designed with a high strength,
  • reinforced concrete shear wall core, with walls up to 48 inches thick.
  • This rigid spine, together with structural steel columns around the tower’s perimeter,
  • support its composite steel and concrete floors.
  • The tower culminates in a nine-storey perforated metal and glass crown that “dissolves”
  • its summit into the sky.
  • The Salesforce Tower is a truly modern commercial work space - with particular attention paid
  • to the quality of its indoor environment and occupant wellbeing.
  • With an advanced natural ventilation system, high performance glazing, integrated louvres
  • and the largest blackwater treatment plant in a US commercial building - the tower has
  • been certified as LEED Platinum, becoming the highest rated commercial project in the
  • United States.
  • To improve the indoor environment and enhance well being, the tower is divided into a series
  • of three storey “vertical villages”.
  • The levels within these villages are linked by
  • staircases that encourage movement and collaboration between teams.
  • Each floor has its own social lounge, kitchen and breakout area, as well as a “ mindfulness
  • zone” where occupants can recharge and unwind.
  • Additionally, all occupants have access to the building’s 61st floor which features
  • a cafe and exhibition space, against a backdrop of panoramic city views.
  • With the 800 foot “181 Fremont Street” and the 900 foot “Oceanwide Centre” both
  • currently under construction, the now-completed Salesforce Tower stands as the first in a
  • new generation of skyscrapers rising across the San Francisco skyline.
  • If you enjoyed this video and would like to get more from the definitive video channel
  • for construction, subscribe to The B1M.

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San Francisco's "Salesforce Tower" is the first in a new generation of skyscrapers reshaping the city's skyline. For more by The B1M subscribe now: http://ow.ly/GxW7y

Read the full story on this video, including images and useful links, here: http://www.theb1m.com/video/salesforce-tower-building-san-franciscos-vertical-village

More on the Transbay Transit Center Redevelopment: http://tjpa.org/

Images courtesy of Google, Steelblue, Transbay Joint Powers Authority, Salesforce, Boston Properties, Inc, Dary Hsu, Brianna Benness, Pelli Clarke Pelli Architects, Vittoria Zupicich, Noah Berger, DBOX and Foster + Partners.

This video was originally published on 11 April 2018 with an incorrect image credit at #. The correct credit for this image is Boston Properties, Inc. This was amended on 06 September 2018. Learn more about Boston Properties, Inc. here: http://www.bostonproperties.com

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