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Cap of Concrete

by Lawrence G. Griffis, P.E., (M.ASCE), Sr. Vice Pres. and Dir. of Struct. Engrg.; Walter P. Moore & Assoc., Inc. Houston, TX,


Serial Information: Civil Engineering—ASCE, 1999, Vol. 69, Issue 3, Pg. 52-55


Document Type: Feature article

Abstract:

The roof of a new $84 million arena in New Orleans was built using techniques usually seen in tied-arch concrete bridges. The concrete components of the roof carry the large compression loads while the steel ties resist thrusts. Designers modified the curved parabolic arch typical of this type of concrete bridge into a mansard roof. One challenge in designing the structure came from the arena's proximity to Louisiana's Superdome, which had a great impact on wind forces reversing uplifts and pressures from what would typically be expected.

Subject Headings: Concrete bridges | Roofs | Bridge components | Arch bridges | Wind pressure | Wind forces | Uplifting behavior

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