Lotte World Tower

Lotte World Tower
롯데월드타워

Lotte World Tower on April 30, 2017
General information
Status Complete
Type Mixed use:
Hotel, Residential
Location Seoul, South Korea
Coordinates 37°30′45″N 127°6′10″E / 37.51250°N 127.10278°E / 37.51250; 127.10278Coordinates: 37°30′45″N 127°6′10″E / 37.51250°N 127.10278°E / 37.51250; 127.10278
Groundbreaking May 2009[1]
Construction started February 1, 2011
Completed December 22, 2016
Opening April 3, 2017
Height
Antenna spire 555.7 metres (1,823 ft)[1]
Roof 555 metres (1,821 ft)[1]
Technical details
Floor count 123 above ground, 6 below ground
Floor area 304,081 m2 (3,273,100 sq ft)[1]
Design and construction
Architect Kohn Pedersen Fox
Developer Lotte Engineering & Construction
Structural engineer Leslie E. Robertson Associates
Website
www.lwt.co.kr

Lotte World Tower (Korean: 롯데월드타워) is a 123-floor, 555-metre (1,821 ft) supertall skyscraper located in Seoul, South Korea. It opened to the public on April 3, 2017 and is currently the tallest building in the OECD, and is the 5th tallest building in the world.

History

After 13 years of planning and site preparation,[2] the tower gained final approval to start construction by the government in November 2010[2] and the first groundbreaking activities of piling and frame assembly were observed at the construction site in March 2011.

At New Year 2016 the LED-pixels of the facade showed "2016".[3]

On March 27, 2016, the first break in and climbing incident occurred. When the tower was still under construction, two Russian photographers Vitaly Raskalov and Vadim Makhorov climbed to the top of the crane and took pictures and a video.[4] They entered the construction site without permission. Due to public's awareness of potential North Korean agent attack, security was notified about this intrusion.[5] News reports lashed the enterprise's public image as well.

On April 2, 2017, Lotte shot off fireworks to celebrate its official opening.[6]

Height

On March 17, 2016, prior to the final phase of external construction, the Diagrid lantern-shaped roof structure was completed. The roof structure was constructed with steel counterparts that are each 12 meters high and weigh 20 tons. The counterparts were made up of bent metal panels that are 6 cm thick, and the structure itself is 120 meters high, and it covers floors 107–123. Approximately 3,000 tons of steel parts, a high-precision 64t tower crane, high-precision GPS alignment systems and highly skilled welding technicians were used in the construction of the roof itself. The roof structure is engineered to withstand its weight without reinforcing pillars, and endure earthquakes up to a magnitude of 9 under the Richter magnitude scale and winds up to 80 m/s.[7]

Floor plans

The conceptual design calls for a slender cone with convex, gently curved sides. An exterior of pale-coloured glass draws inspiration from Korean ceramics and features accents of metal filigree.[8] Located near the Han River, the tower is planned to contain retail outlets (floors 1–12), offices (14–38), residences (42–71), a luxury hotel (76–101), private office (105–114), and public access floors (117–123) with an observation deck.

Floors Use
117–123 Observation deck
105–114 Private office
76–101 Lotte Hotel
42–71 Residence
14–38 Prime office
1–12 Podium
B1–B6 Parking lot

Urban exploration

In 2016, two Russian and Ukrainian urban explorers, Vadim Makhorov and Vitaly Raskalov from Ontheroofs, climbed the under-construction Lotte World Tower through stairs and Vitaly Raskalov then free-climbed up the crane on the tower's top.[9][10] The video was viewed over 3 million times as of September 2016 and received worldwide media attention.[11][12] Following the climb, Lotte World Tower released posters with the photos of Vitaly Raskalov and Vadim Makhorov and banned them from the building.[13][14]

See also

References

  1. 1 2 3 4 "Lotte World Tower". CTBUH Skyscraper Database. Retrieved 4 August 2017.
  2. 1 2 http://world.kbs.co.kr/english/news/news_Dm_detail.htm?No=77118
  3. ↑ "Das frohe neue Jahr kann kommen! Im südkoreanischen Seoul wurde bereits die LED-Schrift auf dem Lotte World Premium Tower getestet." Picture of LED-lit facade tested with the vertical display of "2016" (viewed from north). Kronenzeitung (Print), Vienna, December 31, 2015, p 14. (German)
  4. ↑ "Lotte World Tower (555 meters)". April 10, 2016.
  5. ↑ Woo, Go woon (March 30, 2016). "'도시의 닌자', 이번엔 제2롯데타워 최상층에서 인증샷/Vitaliy Raskalov on Lotte World Tower".
  6. ↑ http://www.fox5atlanta.com/news/245829556-story
  7. ↑ Jung, Wooyoung. "롯데월드타워 555m 달성". Yonhap News. Retrieved March 20, 2016.
  8. ↑ http://www.skyscrapernews.com/news.php?ref=2338
  9. ↑ "Climbing Lotte World Tower (555 meters) youtube video". Ontheroofs. 10 April 2016.
  10. ↑ "Climbing Lotte World Tower ontheroofs story with photos and video". Ontheroofs. 10 April 2016. Archived from the original on September 21, 2016.
  11. ↑ "Daredevils evade security to climb 1,820-foot tower in South Korea". The Telegraph. 31 March 2016. Archived from the original on September 25, 2016.
  12. ↑ "[Interview] Vitaliy Raskalov on his Lotte World Tower climb". The Korea Herald. 12 April 2016. Archived from the original on September 25, 2016.
  13. ↑ "Ukrainian Daredevil Scales Seoul’s Lotte World Tower". Haps Magazine. 30 March 2016. Archived from the original on September 25, 2016.
  14. ↑ "Daredevil climber beats security, tops Lotte World Tower". The Korea Times. 30 March 2016.
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