Use of Vibration Tests to Determine Lateral Load Paths in Medium Rise Buildings

by Peter R. Sparks, Clemson Univ, Clemson, SC, USA,

Document Type: Proceeding Paper

Part of: Dynamic Response of Structures


A structural system identification procedure is described in which an initial analytical model of a building is modified until it predicts accurately the mode shapes and natural frequencies observed in a forced vibration test on the structure. The nature of such tests and possible experimental errors are discussed together with the implications of using an inaccurate structural model when checking the seismic capacity of an existing building. The procedure is illustrated by its application to an eleven story reinforced concrete building.

Subject Headings: Lateral loads | Load tests | Buildings | Vibration | Load factors | Mid-rise buildings | Reinforced concrete | Structural system identification

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