Coupled Motion of Wind-Loaded Multi-Story Building

by J. N. Yang, (M.ASCE), Prof.; Dept. of Civ., Mech., and Environmental Engrg., George Washington Univ., Washington, D.C. 20052,
B. Samali, Grad. Student; Dept., of Civ., Mech., and Environmental Engrg., George Washington Univ., Washington, D.C. 20052,
Y. K. Lin, (M.ASCE), Prof.; Dept. of Aeronautical and Astronautical Engrg., Univ. of Illinois, Urbana, Ill. 61801,


Serial Information: Journal of the Engineering Mechanics Division, 1981, Vol. 107, Issue 6, Pg. 1209-1226


Document Type: Journal Paper

Abstract: An analytical procedure is developed to compute the statistical properties of structural response of a slender tall building under the excitation of a random wind flow field which is statistically stationary in time and nonhomogeneous in space. The mass, elastic, and aerodynamic axes of the building are assumed to be different. Therefore, the translational and the torsional motions of the building are coupled. The problem is formulated in terms of transfer matrices, which relate the response at one floor to the next floor. A numerical example of a 40-story building is given to illustrate the applications.

Subject Headings: Coupling | Floors | Structural behavior | Structural response | Structural analysis | Excitation (physics) | Wind engineering

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