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Taming Structural Vibrations

by Daniel A. Cuoco, (F.ASCE), Structural Engr.; Thornton-Tomasetti, P.C., New York, NY,
Charles H. Thornton, (M.ASCE), Structural Engr.; Thornton-Tomasetti, P.C., New York, NY,
Emmanuel E. Velivasakis, (M.ASCE), Structural Engr.; Thornton-Tomasetti, P.C., New York, NY,


Serial Information: Civil Engineering—ASCE, 1990, Vol. 60, Issue 11, Pg. 57-59


Document Type: Feature article

Abstract:

Vibration is a common problem in buildings that contain large spaces and long spans, especially gymnasiums and dance studios. Research shows that people respond more adversely to continuous vibration than to the transient type. While some acceptable vibration levels have been developed for various types of structures, no standards have been incorporated into U.S. building codes. Two buildings with vibration problems are discussed. In a high school, installing tuned mass damper (TMD) units into the gym floor lessened vibration throughout. For a college building, the authors recommended that tuned mass dampers be installed at several locations, although alternatives would involve stiffening various girders by adding steel trusses to them.

Subject Headings: Vibration | Standards and codes | Damping | Buildings | Trusses | Transient response | Stiffening

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