Tornado Design Winds Based on Risk

by Robert C. Garson, (M.ASCE), Research Assoc.; Dept. of Civ. Engrg., Massachusetts Inst. of Tech., Cambridge, Mass.,
C. Allin Cornell, (M.ASCE), Prof.; Dept. of Civ. Engrg., Massachusetts Inst. of Tech., Cambridge, Mass.,
Jose Morla Catalan, (A.M.ASCE), Struct. Engr.; Iglesias, Vasquez, and Del Nido, Puerto Rico; formerly, Grad. Student, Massachusetts Inst. of Tech., Cambridge, Mass.,


Serial Information: Journal of the Structural Division, 1975, Vol. 101, Issue 9, Pg. 1883-1897


Document Type: Journal Paper

Abstract: A procedure is presented for evaluating the probability of damage due to tornado wind velocities above a specified threshold. It implements theoretical velocity profiles to convert reported damage width data at low velocity thresholds to damage widths for velocities that might cause structural damage. A stationary uniform arrival process with geographically dependent rate is used along with joint statistical properties for damage width, damage length, peak wind velocity, and direction of travel. Design curves for evaluating the damage likelihood and examples of their application are included. A critical analysis of the procedure is also presented.

Subject Headings: Velocity profile | Damage (structural) | Tornadoes | Wind forces | Wind speed | Stationary processes | Joints

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