Ark Hills Sengokuyama Mori Tower

The Ark Hills Sengokuyama Mori Tower (アークヒルズ仙石山森タワー) is a 206.7 m (678 ft) mixed-use skyscraper in Roppongi, Minato ward, Tokyo. The building was designed by Irie Miyake Architects and Engineers and Pelli Clarke Pelli Architects; Mori Building Company was the developer, while the construction process was managed by Obayashi Corporation. Construction of the tower started in 2009 and was completed in 2012.[1][6][7]

Ark Hills Sengokuyama Mori Tower
General information
StatusCompleted
TypeOffices, shops, residences
Architectural styleModern
LocationRoppongi, Tokyo, Japan
Coordinates35.6635993°N 139.7417854°E / 35.6635993; 139.7417854
Construction startedOctober 2009
CompletedAugust 2012
Height
Architectural206.7 m (678 ft)
Tip217.1 m (712 ft)
Top floor198.4 m (651 ft)
Observatory198.4 m (651 ft)
Technical details
MaterialComposite
Floor count51 (47 above ground, 4 underground)
Floor area143,462 m2 (1,544,210 sq ft)
Lifts/elevators23
Design and construction
Architect(s)Irie Miyake Architects and Engineers
Pelli Clarke Pelli Architects
DeveloperMori Building Company
Main contractorObayashi Corporation
References
[1][2][3][4][5]

The building is situated on 2 hectares (4.9 acres) of land area in Ark Hills, near the Kamiyachō Station on the Tokyo Metro Hibiya Line and the Roppongi-itchōme Station on the Tokyo Metro Namboku Line.[4][8] The tower is surrounded by gardens that were designed to replicate the natural wildlife in Tokyo.[9]

Design

Seismic design

The building was designed to withstand earthquakes and strong winds by using two different types of mass dampers. The first damper type is the viscous vibration damping walls (the "sticky wall") that was designed to sustain small- and medium-size earthquakes,[lower-alpha 1][10][12] while the second damper type is the brake damper that was designed to sustain major earthquakes.[lower-alpha 2][10]

Facade and primary uses

The primary functions of the building are distinguished by its facade. The retail and commercial uses of the building, which are located on floors 1–2, are represented by the glass and stone facade with the squared-shape building corners; the apartments, which are located on floors 3-24, are distinguished by its balconies with the rounded-shape building corners; while the offices, which are located on floors 25–47, are covered by the glass with the building corners are subtly stepped back, forming the cone-like shape on the upper parts of the building.[14]

See also

References

Notes
  1. The viscous vibration damping walls are damping devices in which high-viscosity fluid (highly sticky substance) is injected into the box-shaped steel plates that located along the core of the building so that they would create a resistance force by absorbing the floor shake gradually when the structure started to sway.[10] It was previously implemented on Roppongi Hills.[11]
  2. The brake (seismic friction) damper is a damping device that uses frictional energy of brake pads to absorb vibrations.[10][13]

Citations
  1. "Ark Hills Sengokuyama Mori Tower". The Skyscraper Center. Council on Tall Buildings and Urban Habitat. Archived from the original on 31 October 2021. Retrieved 29 September 2016.
  2. "Ark Hills Sengokuyama Mori Tower". emporis.com. Emporis. Archived from the original on September 24, 2015. Retrieved 10 September 2020.
  3. "Ark Hills Sengokuyama Mori Tower". skyscraperpage.com. SkyscraperPage. Archived from the original on 4 November 2021. Retrieved 10 September 2020.
  4. "Ark Hills Sengokuyama Mori Tower Resideces Outline". hills-sengokuyama.com. Ark Hills Sengokuyama Residence. Archived from the original on 12 November 2019. Retrieved 29 September 2016.
  5. "ARK Hills Sengokuyama Mori Tower". obayashi.co.jp. Obayashi Corporation. Retrieved 10 September 2020.
  6. Mori Building (森ビル) (7 August 2012). "アークヒルズ仙石山森タワー竣工 外資中心にテナント55%決定". Jūtaku Shinpō (住宅新報) web (in Japanese). Archived from the original on 20 April 2015. Retrieved 10 September 2020.
  7. "森ビル、六本木・虎ノ門地区の「アークヒルズ 仙石山森タワー」が竣工". Zaikei Shimbun (財経新聞) (in Japanese). 7 August 2012. Archived from the original on 20 October 2012. Retrieved 10 September 2020.
  8. "ARK Hills Sengokuyama Mori Tower: Concept and History". mori.co.jp. Mori Building Company. Archived from the original on 8 April 2023. Retrieved 10 September 2020.
  9. Wetherille, Kelly (1 June 2018). "Bird watching in the heart of Tokyo". Japan Today. Archived from the original on 3 December 2022. Retrieved 10 September 2020.
  10. "Ark Hills Sengokuyama Mori Tower, Tokyo". ctbuh.org. Council on Tall Buildings and Urban Habitat. Archived from the original on 23 June 2016. Retrieved 10 September 2020.
  11. "Roppongi Hills: Introduction of New Technology". mori.co.jp. Mori Building Company. Archived from the original on 28 November 2021. Retrieved 10 September 2020.
  12. Alexander, Lucy (1 June 2013). "The Tokyo skyscrapers that can withstand a major earthquake". Financial Times. Archived from the original on 10 September 2020. Retrieved 10 September 2020.
  13. "What are Seismic Friction Dampers?". quaketek.com. Quaketek. Archived from the original on 31 January 2022. Retrieved 10 September 2020.
  14. Crosbie 2013, pp. 244–245.

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