Title

Mass-Variable TLD Systems and Their Seismic Performance

Abstract

A conventional tuned liquid damper (TLD) generates a relatively small control force associated with low density of sloshing water. To overcome this main drawback, proposed in this study is a new TLD system composed of water and fine particles in a rectangular tank of sloping bottom. The effectiveness of the proposed mass-variable TLD system was demonstrated with shake table tests. In comparison with a conventional TLD, the mass-variable TLD can more effectively reduce structural responses particularly under large external excitations. The mass-variable TLD can also be effective in the earlier stage of an earthquake event due to the increasing mass nature as the excitation increases. This attribute makes the new TLD particularly attractive under impulsive loads such as near-field ground motions.

Meeting Name

Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems (2007: Mar. 19-22, San Diego, CA)

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Mass-Variable Tuned Liquid Damper; Seismic Effectiveness; Seismic Response; Tuned Liquid Damper; Impulsive Loads; Mass-Variable TLD Systems; Near-Field Ground Motions; Sloshing Water; Earthquakes; Force Control; Intelligent Structures

International Standard Book Number (ISBN)

0819466506; 9780819466501

International Standard Serial Number (ISSN)

0277786X

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2007 SPIE, All rights reserved.

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