Lotte World Tower
By: Parneet Badesha & Kathryn Wan
Description
❖ Is a 555m-high Skyscraper
❖ Location: Seoul, South Korea
❖ Cost: 3.4 billion (USD)
❖ Construction started: 2011
❖ Took 7 years to build; opened April 2017 for the public
❖ Used as a luxury hotel, shopping mall, observation deck, office
space, cinema, aquarium and many other facilities
❖ Tallest in South Korea, 5th tallest building in the world
❖ It has the world’s highest glass-bottomed observation deck
❖ Has the World’s Largest Indoor Theme Park
Courtesy of thetowerinfo.com
Design
❖ 555m-high (1,820ft)
❖ 123 floors above ground, 6 floors below
❖ Includes world’s fastest and longest double-decker
elevator (can carry 54 people from 1st floor to 121 Courtesy of ohfacts.com
floor in less than 1 min, speed of 10m/sec)
❖ Designed by: Kohn Pedersen Fox (an American
architecture firm)
❖ Design based off of the various traditional Korean
artforms of ceramics, porcelain and calligraphy.
Courtesy of Medium.com
Foundations
Construction Material:
- Core: Reinforced Concrete
- Columns: Concrete Encased Steel
- Floor Spanning: Steel
❖ Soil underneath composed of soft + hard rocks - could
support the building weight but contained fault and shear
zones
❖ to prevent settlement added ground strengthening piles
(1m diameter)
❖ sand cushion installed at upper part of piles to separate from
the (6.5m thick) mat foundation
❖ The foundation supports 750,000 tons of the vertical weight
of the building
Courtesy of blogspot.com
Adaptations
❖ Outriggers and belt trusses that act like joints of bamboo installed every 40 floors to
transverse the pressure of a typhoon and/or earthquake
❖ A diagrid structure from the top which joins the steel frame like a mesh to cope with the
pressure of a typhoon and/or earthquake without additional support
❖ Concrete barrier wall (thickness 1m and depth 27m) put into the bedrock around the
building
❖ A core wall and 8 mega columns to support the towers vertical gravity
❖ Has a “Structural Health Monitoring System” which manages the structural safety of
the tower; it monitors the risks of typhoons, earthquakes, etc. It includes more than 600
sensors and a measuring system to check the health of the building in real time
Courtesy of lwt.co.kr
Citations (For Information)
“Challenges and Opportunities for the Structural Design of the 123-Story Jamsil Lotte World Tower.” CTBUH, 2016,
global.ctbuh.org/resources/papers/download/2504-challenges-and-opportunities-for-the-structural-design-of-the-123-story-jamsil-lotte-
world-tower.pdf.
“Engineering & Technology ㅣ LOTTE WORLD TOWER.” Engineering & Technology ㅣ ,
www.lwt.co.kr/tower/en/towerStory/technology.do.
“History ㅣ LOTTE WORLD TOWER.” History ㅣ , www.lwt.co.kr/tower/en/towerStory/history.do.
“Lotte World Tower Facts and Information.” The Tower Info Skyscrapers & Urban Adventures, thetowerinfo.com/buildings-list/lotte-
world-tower/.
“Lotte World Tower, Seoul, South Korea.” Design Build@2x, 24 Sept. 2020, www.designbuild-network.com/projects/lotte-world-tower-
seoul/.
“Lotte World Tower.” The Skyscraper Center, www.skyscrapercenter.com/building/lotte-world-tower/88.
See, SawTeen, et al. “Structural Innovations of Lotte World Tower.” STRUCTURE Magazine, www.structuremag.org/?p=11393.
Citations for Images
Doongle. “Lotte's World: Record Breaking Adventure in Seoul.” Medium, Medium, 5 July 2019, medium.com/@doongle/lottes-
world-record-breaking-adventure-in-seoul-c713b95acc60.
“Engineering & Technology ㅣ LOTTE WORLD TOWER.” Engineering & Technology ㅣ ,
www.lwt.co.kr/tower/en/towerStory/technology.do.
Keerti. “15 Interesting Facts About Lotte World.” OhFact, 20 Feb. 2019, ohfact.com/lotte-world-facts/.
“Lotte World Tower Facts and Information.” The Tower Info Skyscrapers & Urban Adventures, thetowerinfo.com/buildings-
list/lotte-world-tower/.
“Lotte World Tower.” The Skyscraper Center, www.skyscrapercenter.com/building/lotte-world-tower/88.
Mahiques , Myriam B. Lotte, Korea's First Supertower, 18 Dec. 2011, 8:08 AM , myriammahiques.blogspot.com/2011/12/lotte-
koreas-first-supertower.html.
Thank You!
