地震工程与工程振动（英文版）
地震工程與工程振動（英文版）
지진공정여공정진동（영문판）
EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION
2009年
4期
537-546
,共10页
tuned liquid damper%density-variable tuned liquid damper%seismic response%seismic effectiveness%robustness
In this paper, the seismic effectiveness of a density-variable tuned liquid damper (DVTLD) with a sloping bottom is experimentally investigated through a series of shake table tests on a 1/4-scale, 3-story frame structure and numerically simulated by a new semi-analytical model. Special attention was given to reducing the first peak and maximum response under near- and far-field ground motions, and the robustness of a density-variable control system consisting of multiple DVTLDs with closely-spaced frequencies. Adaptable to earthquake excitations, the density-variable control system has been demonstrated to be more effective and more robust than its corresponding traditional tuned liquid damper in suppressing story drift and floor acceleration of the structure. Numerical simulations of the DVTLD-controlled structure agreed very well in phase with experimental results but somewhat overestimated the amplitude of the structural response.
