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
| May 16, 2012
AIA issues guide to IGCC
Getting the IgCC adopted in all 50 states and in jurisdictions across the country is the primary mission of the ICC, which published the code in March.
| May 16, 2012
Architecture Billings Index reverts to negative territory
Decline is possibly a brief pause from unusually strong winter activity.
| May 16, 2012
AEG releases 3D video of L.A.'s Farmers Field
The Los Angeles Convention Center footage depicts the new convention center hall spaces, including a new lobby above Pico Boulevard, pre-function space, and what will be the largest multi-purpose ballroom in Los Angeles.
| May 16, 2012
Balfour Beatty Construction taps Kiger as VP of operations
Kiger will manage current relationships and pursue other strategic clients, including select healthcare clients and strategic project pursuits in the Central Tennessee region.
| May 15, 2012
One World Trade Center goes to new height of sustainability
One of the biggest challenges in developing this concrete mixture was meeting the Port Authority of New York/New Jersey’s strict requirement for the replacement of cement.
| May 15, 2012
Suffolk selected for Rosenwald Elementary modernization project
The 314-student station elementary school will undergo extensive modernization.
| May 15, 2012
Don’t be insulated from green building
Examining the roles of insulation and manufacturing in sustainability’s growth.
| May 15, 2012
National Tradesmen Day set for Sept. 21
IRWIN Tools invites the nation to honor "The Real Working Hands that Build America and Keep it Running Strong".
| May 15, 2012
SAGE Electrochromics to become wholly owned subsidiary of Saint-Gobain
This deal will help SAGE expand into international markets, develop new products and complete construction of the company’s new, state-of-the-art manufacturing facility in Faribault, Minn.
| May 14, 2012
Codes harvest rainwater
IAPMO’s Green Plumbing and Mechanical Code Supplement could make rainwater harvesting systems commonplace by clearly outlining safe installation and maintenance practices.