Impact of seismic excitation characteristics on the efficiency of tuned liquid column dampers

被引：1

作者：

Kavand A. ^{[1
]}

Zahrai S.M. ^{[2
]}

机构：

[1] School of Civil Engineering, Sharif University of Technology, Tehran

[2] School of Civil Engineering, University of Tehran, Tehran

来源：

Earthquake Engineering and Engineering Vibration | 2006年 / 5卷 / 2期

关键词：

Frequency content; Passive control; Seismic excitation characteristics; Seismic performance; Subsoil conditions; Tuned liquid column dampers;

D O I：

10.1007/s11803-006-0639-5

中图分类号：

学科分类号：

摘要：

Various types of passive control systems have been used to suppress the seismic response of structures in recent years. Among these systems, Tuned Liquid Column Dampers (TLCDs) dissipate the input earthquake energy by combining the effects of the movement of the liquid mass in the container, the restoring force on the liquid due to the gravity loads and the damping due to the liquid movement through orifices. In this study, the effects of seismic excitation characteristics such as frequency content and soil condition on the seismic performance of TLCDs are investigated using nonlinear time-history analyses. In this regard, among the past earthquake ground motion records of Iran, 16 records with different parameters were selected. In the structural model developed, the attached TLCD is simulated as a Tuned Mass Damper (TMD) having the same vibration period and damping ratio as the original TLCD. The numerical results show that the seismic excitation characteristics have a substantial role on the displacement reduction capability of TLCDs and they should be considered accordingly in the design of TLCDs.

引用

页码：235 / 243

页数：8

共 13 条

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