Lotte World Tower

Lotte World Tower (Korean: 롯데월드타워), is a 123-story, 555 m (1,821 ft) supertall skyscraper, located in Sincheon-dong, Songpa-gu, Seoul, South Korea. It is the sixth-tallest building in the world, the tallest in OECD countries, and also the first in South Korea to be over 100 stories tall.

Not to be confused with Busan Lotte World Tower.
Lotte World Tower
롯데월드타워
The tower in 2019
Former names
  • Two Lotte World Tower
  • Lotte World Premium Tower
Alternative namesLotte Jamsil Super Tower
Record height
Tallest in the OECD countries since 2017[I]
Preceded byOne World Trade Center
General information
StatusCompleted
TypeObservation, office, hotel, residential, retail
LocationSincheon-dong, Songpa-gu, Seoul, South Korea
Coordinates37°30′45″N 127°06′10″E
GroundbreakingMay 2009[1]
Construction startedJanuary 22, 2010
CompletedDecember 22, 2016
OpeningApril 3, 2017 (April 3, 2017)
Height
Architectural555 m (1,821 ft)
Top floor499 m (1,637 ft)
Technical details
Floor count123 and 6 below ground
Floor area304,081 m2 (3,273,100 sq ft)
Lifts/elevators61
Design and construction
Architect(s)Kohn Pedersen Fox
DeveloperLotte Engineering & Construction
EngineerSyska Hennessy Group (MEP)[2]
Structural engineerLeslie E. Robertson Associates[3]
Website
www.lwt.co.kr

It was the fifth-tallest in the world when completed in 2016, though it was surpassed by the 599 m (1,965 ft) supertall building, Ping An Finance Center in Shenzhen, China, which opened on March 28, 2017. "The Tower" opened to the public on April 3.[4] Haeundae LCT The Sharp in Busan is the second-tallest building in the country.

A "Sky Bridge Tour" is located on the roof of Lotte World Tower at 541 m (1,775 ft),[5] which is the total height of One World Trade Center, the tallest building in the United States.

History

After 13 years of planning and site preparation,[6] the tower gained final approval to start construction by the government in November 2010[6] and the first groundbreaking activities of piling and frame assembly were observed at the construction site in March 2012.

On December 31, 2015, the LED-pixels of the façade displayed the number "2016".[7]

On April 3, 2017, Lotte shot off fireworks to celebrate the tower's official opening.[8]

On January 1, 2018, Lotte shot off fireworks with a LED laser show for seven minutes to celebrate New Year's Day and the 2018 PyeongChang Winter Olympics.

Design

On March 17, 2016, before 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 m (39 ft) and weigh 20 tons. The counterparts were made up of bent metal panels that are 6 cm (2.4 in) thick. The roof structure itself is 120 m (390 ft) high and covers floors 107–123. Approximately 3,000 tons of steel parts, a high-precision 64t tower crane and GPS alignment systems, as well as welding technicians, were used in the construction of the roof.

The roof structure is engineered to withstand its weight without reinforcing pillars, endure earthquakes up to a magnitude of 9 under the Richter magnitude scale, and winds up to 80 m/s (260 ft/s).

The exterior of pale-coloured glass draws inspiration from Korean ceramics and features accents of metal filigree.[9]

Floor plans
External video
video icon https://youtube.com/watch?v=Ru1XEFllhtE The elevators in Lotte World Tower

Seoul Sky occupies the top seven levels. Floors 117–118 are the entrance and view floor, including a glass floor and sky show on 118. Sky Friends Cafe and the sky terrace are located on floors 119–120. Seoul Sky Cafe and a souvenir shop are on floors 121–122, and the premium lounge bar, 123 lounge, is on the top floor at 499 m (1,637 ft).

The observatory charges an admission for entry.[10] The skylight of Seoul Sky was the highest glass floor observatory as of the tower's completion. The tower and One World Trade Center have concluded an operation and technical service agreement.[11][12]

Floor Use
123 Premium Lounge Bar (Lounge 123)
122 Seoul Sky Cafe, Angel in Us Cafe
121 Observation (Seoul Sky) exit, Seoul Sky Shop
120 Observation (Seoul Sky) exit, Sky Terrace
119 Observation (Seoul Sky), Character Dessert Cafe (Sky Friends Cafe)
118 Observation (Seoul Sky) entrance, Sky Deck
117 Observation (Seoul Sky) entrance
115–116 Mechanical floor
108–114 Private office (Premier 7)
107 Private office (Premier 7) Lobby, Signiel Club (member restaurant)
103–106 Mechanical floor
102 Refuge area
87–101 Signiel Seoul Hotel guestrooms
86 Spa, staff restricted area
85 Indoor pool, fitness centre, sauna
84 Mechanical floor
83 Refuge area
82 Bicena Korean restaurant
81 Stay French restaurant, Bicena Korean restaurant
79–80 Signiel Hotel lobby
76–78 Signiel ballroom
72–75 Mechanical floor
61–71 Signial Residences
60 Refuge area
59 Mechanical floor
44–58 Signial Residences
42–43 Signial Residences lobby, fitness centre, golf room, ballroom
41 Mechanical floor
40 Refuge area
39 Mechanical floor
32–38 Office
31 Seoul Sky 31 food court, Sky 31 convention
24–30 Office
23 Mechanical floor
22 Refuge area
21 Mechanical floor
14–20 Office
13 Mechanical floor
12 Lotte Financial Centre, Hana Financial Investment, KEB Hana Bank, Woori Bank, Lotte World Tower Banking Centre
11 BGN Eyeclinic
10 Medical centre
8–9 Lotte duty free shop
7 Lotte Museum of Art
6 Fitness platform (Move 360)
5 Lotte World Tower publicity center, public relation office, press room
3–4 Mechanical floor, store room, staff restricted area
2 Office lobby
1 Office, Signiel Hotel lobby, Angel in Us Cafe
B1 Observation (Seoul Sky) entrance, Signial Residences lobby, Lotte World Tower emergency operation center, drop-off, Seoul Sky shop, Signature pharmacy
B2 Observation (Seoul Sky) entrance, loading dock, parking lot
B3–B5 Parking lot
B6 Mechanical floor

Incidents and accidents

Safety issues

In 2013 and 2014, three construction workers died during the construction of the tower, and an executive director of Lotte's construction arm was given a suspended sentence of eight months in prison in 2016 for his role in neglecting safety measures at the site.[13] In December 2014, the Seoul city government ordered the mall and cinema complex at the base of the tower, which opened before completion of the tower, to be closed for five months after water was found leaking from an internal aquarium. Independent engineers who assessed the building found that the issues bore little relation to the overall structural integrity of the building and the mall and cinema complex reopened in 2015.[14]

Illegal entries and climbing
See also: Buildering

In 2016, two men from Ukraine illegally climbed the under-construction Lotte World Tower via its stairs, and one of them free solo climbed up the crane to the top.[15][16] Following the climb, Lotte World Tower released posters with the photos of the two and banned them from the building.[17][18]

On June 12, 2023, a 24-year-old British man illegally climbed the tower without ropes from the ground. The building security discovered him on the 42nd floor at 192 m (630 ft) above ground at 7:50 am. While he was taking a break on the 72nd floor, the police stopped him on the 73rd floor at 313 m (1,027 ft) above ground by using a building maintenance unit at 8:47 am. After his arrest, he said that he had planned the climb for six months.[19]

  • October 2007
    October 2007
  • October 2011
    October 2011
  • December 2013
    December 2013
  • October 2015
    October 2015
  • April 2017
    April 2017

See also

References
  1. "Lotte World Tower". CTBUH Skyscraper Center. Retrieved 4 August 2017.
  2. "Lotte World Tower - the Skyscraper Center".
  3. Editors. (April 20, 2016), "Korea's Tallest Tower Embodies Industrial Malaise" The Chosun Ilbo
  4. Jung, Wooyoung (17 March 2016). "롯데월드타워 555m 달성". Yonhap News (in Korean). Retrieved March 20, 2016.
  5. "Sky Bridge Tour : Facilities Guide : Seoul Sky".
  6. "Lotte World 2 Gains Final Approval". world.kbs.co.kr.
  7. "Das frohe Neue Jahr kann kommen! I'm sudkoreanischen 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 the north). Kronen Zeitung (Print), Vienna, December 31, 2015, p 14. (German)
  8. FOX. "WATCH: Fireworks at the grand opening of the Lotte World Tower". fox5atlanta.com. Archived from the original on 2017-04-06. Retrieved 2017-04-03.
  9. "KPF Pen 555m Tall Korean Tower - Article #2338".
  10. "티켓안내 : 이용안내 : 롯데월드 전망대".
  11. "Lotte World Tower - skyscraper". skyscrapercenter.com. Retrieved March 20, 2017.
  12. "555m Seoul Sky · 541m won World Trade Center". news.hankyung.com. 20 August 2017. Retrieved 2017-09-02.
  13. Herald, The Korea (2016-01-21). "Lotte executive gets suspended jail sentence in construction worker's death". www.koreaherald.com. Retrieved 2019-10-03.
  14. Sang-Hun, Choe (2015-07-14). "Lotte World Tower Rises, and Leery Koreans Watch". The New York Times. ISSN 0362-4331. Retrieved 2019-10-03.
  15. Rakalov, Vitaliy; Makhorov, Vadim (10 April 2016). "Climbing Lotte World Tower (555 meters)". Ontheroofs. Archived from the original on 2021-12-20 – via YouTube.
  16. Rakalov, Vitaliy; Makhorov, Vadim (10 April 2016). "Climbing Lotte World Tower ontheroofs story with photos and video". Ontheroofs. Archived from the original on September 27, 2016.
  17. "Ukrainian Daredevil Scales Seoul's Lotte World Tower". Haps Magazine. 30 March 2016. Archived from the original on November 4, 2016.
  18. Dong-hwan, Ko (30 March 2016). "Daredevil climber beats security, tops Lotte World Tower". The Korea Times.
  19. "Moment British man climbs to 72nd floor of Seoul skyscraper". The Independent. Retrieved 7 August 2023 – via YouTube.

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