Static Wind Loads on Circular Concave Cable Roofs

by Gerald R. Seeley, (A.M.ASCE), Asst. Prof.; Dept. of Civ. Engrg., Tri-State Coll., Angola, IN,
Heinz Stefan, (A.M.ASCE), Assoc. Prof.; Dept. of Civ. and Mineral Engrg., Univ. of Minnesota, Minneapolis, MN,
Paul Christiano, (A.M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg., Carnegie-Mellon Univ., Pittsburgh, PA,

Serial Information: Journal of the Structural Division, 1974, Vol. 100, Issue 8, Pg. 1593-1609

Document Type: Journal Paper

Abstract: Experimentally determined time-smoothed wind pressure distributions on a rigid model of a circular concave roof are presented. The loadings are then used in an analytical investigation of the static response of a cable network. It is observed that the flow separates from the leading edge of the structure and may or may not reattach, depending on the height-to-diameter ratio of the building and on the relative boundary layer thickness. Also, ground roughness has a significant effect on the velocity profile of the approaching flow and on the resulting pressure distribution. For a circular concave cable roof subjected to the experimentally determined asymmetric wind loading, nonlinear effects are important in determining the load-deformation behavior. As the magnitude of the loading increases, nonlinear effects become more pronounced.

Subject Headings: Cables | Wind loads | Pressure distribution | Load factors | Roofs | Boundary layers | Wind pressure | Static loads |

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