Eventually this may lead to a revival of the thin concrete shell. Later, in 1958, he would organize the First Congress of International Association for Shell Structures. In addition, recent developments in concrete technology have led to ultra high performance fibre reinforced concrete with revolutionary performance in tension and compression. designs in concrete shell structures and along with Jose Maria Aguirre, founded the Experimental Institute for New Uses and Theories for Reinforced Concrete. The following stages in the design of concrete shell roofs can be identified. Similarly, Khaled Shawwaf, of DYWIDAG Systems This document governs the design of thin shell concrete structures, previously presented in ACI 318-11 Chapter 19. Analysis of internal stress resultants and dis placements 3. Where required for design of thin shell concrete structures, provisions of ACI 318 are to be used to complement the provisions of this Code. As part of the research "Design and Performance of Ultra-Thin Concrete Shells", the proposed study seeks to explore the architectural dimension of an ultra-thin free-form shell structure. The most popular types of thin-shell structures are: Concrete shell structures, often cast as a monolithic dome or stressed ribbon bridge or saddle roof; Lattice shell structures, also called gridshell structures, often in the form of a geodesic dome or a hyperboloid structure In the history of thin-shell structures, four of the major influences are: Anton Tedesko (1903-1994), who is attributed with much of the success of thin-shell structures in the U.S; Pier Luigi Nervi (1891-1979), who in Italy gave structural integrity to the complex curves and geometry of reinforced-concrete structures such as the Orbetello aircraft hangar (begun 1938) and Turin’s … However, he was a principal in the design and construction of the Georgia Dome in Atlanta, a lightweight tensegrity structure completed in 1992. Determination of the shell form, its supports and loads (limit states) 2. I. thin shells is over, however, nowadays natural free-form shapes and blobs attract more and more attention. involved in a thin concrete shell project since the late 1970s. 1.8 "Concrete Shell Structures Practice and Commentary" (1992) 1.9 "Contributions of André Paduart to the Art of Thin Concrete Shell Vaulting" (2003) 1.10 Analysis of Thin Concrete Shells Revisited (2008) 1.11 A Thin Shell Trolley Barn for Seattle's Water Front (2010) Organizing this was in part due Design/verification of shell reinforcement 4. Verification of the adequacy of concrete … He surmised that 40 years ago, this dome might have been built as a concrete shell.