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Prediction and Measurement of Wind Response: Case Story of a Wind Sensitive Building

by C. Dobryn, DeSimone, Chaplin & Associates, New York, NY, USA,
N. Isyumov, DeSimone, Chaplin & Associates, New York, NY, USA,
A. Masciantonio, DeSimone, Chaplin & Associates, New York, NY, USA,



Document Type: Proceeding Paper

Part of: Dynamics of Structures

Abstract:

The wind-induced horizontal accelerations of a 43 story office tower in New York City were monitored during 11 occasions over a period of about six months. The building dates back to the early sixties and is of typical steel frame construction with a block core located eccentrically at one end. Records of wind-induced accelerations were made during both calm and windy conditions. The latter included strong winds during Hurricane Gloria in September of 1985 and during a relatively severe extra-tropical storm. The objectives of the monitoring program were twofold: i) to obtain estimates of building periods and its damping as required in the assessment of its resistance to wind loads; and ii) to compare the observed wind-induced response with predictions from a wind tunnel model study of the building carried out to assist in the re-evaluation of the building.

Subject Headings: Wind tunnel | Wind loads | Wind engineering | Wind forces | Dynamic structural analysis | Damping | Steel frames | New York City | New York | United States

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