Adrian Smith + Gordon Gill Architecture unveiled the design for Dancing Dragons, a pair of supertall mixed-use towers for the new Yongsan International Business District in Seoul, South Korea. The buildings, which include residential, “officetel” and retail elements, consist of slender, sharply angled mini-towers cantilevered around a central core. The design aesthetic is contemporary yet informed by aspects of traditional Korean culture.
The mini-towers feature a series of diagonal massing cuts that create living spaces that float beyond the structure. This recalls the eaves of traditional Korean temples—a design theme echoed both in the geometry of the building skin and the jutting canopies at the towers’ base. The theme is extended in the building skin, which suggests the scales of Korean mythical dragons, which seem to dance around the core—hence the project’s name. (Yongsan, the name of the overall development, means “Dragon Hill” in Korean.)
Towers 1 and 2—about 450 meters and 390 meters tall, respectively—share an architectural language and, therefore, a close family resemblance, but are not identical. In the taller structure, the 88-level Tower 1, the massing cuts at the top and bottom of the mini-towers are V-shaped. In the 77-level Tower 2, the cuts move diagonally in a single unbroken line; they are also arranged in a radial pattern around the core that is perceptible as viewers move around the tower.
In both buildings, the mini-tower cuts are clad in glass at the top and bottom, making for dramatic skylights above the units at the highest levels and a transparent floor beneath the units at the lowest levels. This offers the opportunity for special high-value penthouse duplex units with spectacular 360-degree views of downtown Seoul and the adjacent Han River, along with an abundance of natural light.
AS+GG partner Robert Forest, AIA, notes that Dancing Dragons represents AS+GG’s second major project in downtown Seoul. The other is the Head Office of the Federation of Korean Industries, an innovative and highly sustainable office building now under construction and scheduled to be completed next year.
The design team also includes PositivEnergy Practice, a Chicago-based engineering and energy consulting firm that is designing a series of innovative building systems for the project. Sustainable features of the building system design include triple-glazed window units, which minimize heat loss; an overlapping exterior wall system, which creates a self-shading effect; and natural ventilation in all units through operable mullions. Other systems include radiant heating; fuel-cell cogeneration units at the basement level; photovoltaic arrays on the roof surfaces; daylight-linked lighting controls; and heat recovery via electric centrifugal chillers.
The structural scheme for Dancing Dragons, developed by AS+GG in collaboration with the international structural engineering firm Werner Sobek, features eight mega-columns that traverse the vertical length of both cores. The mini-towers are hung off the cruciform cores in a balanced fashion by means of a belt truss system, stabilizing the structure.
The design of the 23,000-square-meter site—part of the larger Yongsan master plan —reinforces the angular geometry of the building massing and skin. Landscape features, designed in collaboration with Martha Schwartz Partners, include sloped berms that echo that geometry. The site also includes a retail podium with a crystalline sculptural form and sunken garden that provide access to a large below-grade retail complex. +
Related Stories
| Oct 16, 2013
5 secrets of successful entrepreneurs
If you’re on the outside looking in, successful entrepreneurship may seem mysterious. But it isn’t. Here are five patterns of behavior that are common to successful entrepreneurs.
| Oct 15, 2013
High-rise Art Deco courthouse gets a makeover in Amarillo, Texas
Recognized as one of the most significant Art Deco courthouses in Texas, the Potter County Courthouse is modernized and restored to its 1930s aesthetic.
| Oct 10, 2013
Behind the scenes at the U40 Summit: See the $5,000 U40 Vision competition in progress [slideshow]
Sixty-five up-and-coming AEC leaders are battling for $5,000 in prizes today at BD+C's Under 40 Leadership Summit in San Francisco.
| Oct 10, 2013
Arthur Gensler to architects: Don't give away your ideas
The founder of Gensler advises dozens of up-and-coming AEC professionals at BD+C's Under 40 Leadership Summit in San Francisco.
| Oct 9, 2013
From power plant to office: Ambler Boiler House conversion
The shell of a 19th-century industrial plant is converted into three levels of modern office space.
| Oct 7, 2013
10 award-winning metal building projects
The FDNY Fireboat Firehouse in New York and the Cirrus Logic Building in Austin, Texas, are among nine projects named winners of the 2013 Chairman’s Award by the Metal Construction Association for outstanding design and construction.
| Oct 7, 2013
Progressive steel joist and metal decking design [AIA course]
This three-part course takes a building owner’s perspective on the range of cost and performance improvements that are possible when using a more design-analytical and collaborative approach to steel joist and metal decking construction.
Sponsored | | Oct 7, 2013
Bridging the digital divide between the BIM haves and have nots
There's no doubt that BIM is the future of design. But for many firms, finding a bridge to access rich model data and share it with those typically left on the sidelines can be the difference between winning a bid or not.
| Oct 7, 2013
How to streamline your operations
The average U.S. office worker generates two pounds of paper each day, according to the EPA. Ninety percent of that trash is made up of printed materials: marketing reports, project drafts, copy machine mistakes, and unwanted mail. Here are a few ways AEC firms can streamline their management processes.
| Oct 7, 2013
Reimagining the metal shipping container
With origins tracing back to the mid-1950s, the modern metal shipping container continues to serve as a secure, practical vessel for transporting valuable materials. However, these reusable steel boxes have recently garnered considerable attention from architects and constructors as attractive building materials.