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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Shell Structures

Explorations in Structural Geometry: Jack Christiansen's Segmental Hyperbolic Paraboloids

< Table of Contents for Shell Structures
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Shell Structures
  • Pages: 10
  • Title: Explorations in Structural Geometry: Jack Christiansen's Segmental Hyperbolic Paraboloids
  • Author(s): Tyler Sprague
  • Keywords: shells, thin shell concrete, structural geometry, modern architecture, concrete
Abstract
Jack Christiansen has been rightly recognized as one of the top thin shell concrete designers in the modern period. At the core of his shell investigation was the geometrical combination of the warped, hyperbolic paraboloid shell segments into large-scale structural forms. This paper will focus on three signature hyperbolic paraboloid shell structures that Christiansen designed between 1958 and 1969, and describe their structural geometry in depth. These structures - a small-scale multipurpose room, a high school auditorium and an exhibition dome ・collectively portray his personal method of structural investigation and spatial creativity. Starting small, Christiansen designed shells with a distinctly different spatial condition than other designers like Felix Candela, and would later take the hyperbolic paraboloid shell to even longer spans. These three projects set the stage for Christiansen's design of the Seattle Kingdome, the largest freestanding concrete dome in the United States.

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