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AMBIENT RESPONSE OF A UNIQUE PERFORMANCE-BASED DESIGN BUILDING WITH DYNAMIC RESPONSE MODIFICATION FEATURES

by Mehmet Çelebi, Moh Huang, Antony Shakal, John Hooper and Ron Klemencic

Mehmet Çelebi, Moh Huang, Antony Shakal, John Hooper and Ron Klemencic (2012). AMBIENT RESPONSE OF A UNIQUE PERFORMANCE-BASED DESIGN BUILDING WITH DYNAMIC RESPONSE MODIFICATION FEATURES SMIP12 Seminar on Utilization of Strong-Motion Data, p. 97 - 110.

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Abstract

A 64-story, performance-based design building with reinforced concrete core shear-walls and unique dynamic response modification features (tuned liquid sloshing dampers and buckling-restrained braces) has been instrumented with a monitoring array of 72 channels of accelerometers. Ambient vibration data recorded are analyzed to identify modes and associated frequencies and damping. The low-amplitude dynamic characteristics are considerably different than those computed from design analyses, but serve as a baseline against which to compare with future strong shaking responses. Such studies help to improve our understanding of the effectiveness of the added features to the building and help improve designs in the future.