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David Scott
Principal, Arup, New York / CTBUH Immediate Past Chairman
“Elegant Efficiency for Complex Tall Towers"

In recent years, changes to the design and construction process have given architects, engineers, fabricators and builders the tools to design and build bigger and more complex towers than ever before. This has led to a boom of unusual tall buildings and tapered, tilted, twisted towers. But just because technology gives us the tools to create any arbitrary shape in a 3D virtual world, should we build them? In this presentation David explores the advantages of collaboration and argues that the more complex the tower the greater both the need and benefit of a close collaboration between architect and engineer.

DAVID SCOTT is a Principal at Arup, leader of Arup New York’s Building Engineering Business, and the Arup
Global Tall Buildings leader. In 2006, he became Chair of the Council on Tall Buildings and Urban Habitat, a
Chicago-based organization of architects, engineers, planners, developers and contractors, which exists
to maximize the international interaction of professionals involved in creating the
built environment in urban contexts throughout the world.

David graduated with a first class B.Sc. in Engineering from Edinburgh University and joined the London
office of Arup in 1977 as a structural engineer. During his career David has been based in Europe, Africa, Asia and the United States. He spent 15 years based in South East Asia, working on Arup’s first major building projects in China, Korea, Indonesia, Philippines and Taiwan. While based in Hong Kong he worked on many award
winning and innovative projects, such as the Hong Kong Bank Headquarters, the Biological Sciences Building at HKU, the International Airport Terminal Building in Hong Kong and the 300m Cheung Kong Center for Hong Kong’s largest developer. David moved to New York in 1998 to take up a key role in the Arup Buildings Business in the
United States. From New York he has worked with leading architects on a wide range of tall buildings, major infrastructure projects and long span structures.

In 2001 David was one of the team leaders working with the contractors in the search, recovery and clean-up of the World Trade Center site after 9-11, as part of the SEAoNY-led effort. Following 9-11 he was extensively involved in the industry review of building design and standards: presenting a paper on Fire Induced Progressive Collapse at the NIST Chicago conference, and being involved with the review of GSA’s new design requirements to mitigate
progressive collapse. He has also published papers on Seismic Design in Areas of Low to Moderate Seismicity, fire and structures, composite structures and the design of long-span roofs. In the last five years, David has worked on a series of articulated tall towers that were the inspiration for the CTBUH 2006 Conference “Thinking Outside the Box – Tapered, Tilted, Twisted Towers.” His work on super-tall and complex towers has continued and in 2007 he led
the Arup NY team that recently took out patents for a new, more efficient structural system for twisting towers, developed in collaboration with HOK. He has worked extensively on a series of complex towers with Asymptote, HOK, KPF, OMA, Studio Daniel Libeskind, and TVS.

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