Onset of Motion of Curved Surface Sliders Used in Seismic-Isolation Systems

被引：5

作者：

Ormando, Chiara ^{[1
]}

Clemente, Paolo ^{[2
]}

Ianniruberto, Ugo ^{[1
]}

Scafati, Federico ^{[3
]}

机构：

[1] Univ Tor Vergata, Dept Civil Engn & Comp Sci Engn, Via Politecn 1, I-001333 Rome, Italy

[2] Italian Natl Agcy New Technol Energy & Sustainabl, Casaccia Res Ctr, Via Anguillarese 301, I-00123 Rome, Italy

[3] Univ Aquila, Dept Civil Construct Architectural & Environm, Via Giovanni Gronchi 18, I-67100 Laquila, Italy

来源：

PRACTICE PERIODICAL ON STRUCTURAL DESIGN AND CONSTRUCTION | 2021年 / 26卷 / 03期

关键词：

Seismic isolation; Curve surface slider; Friction; FRICTION; BEARINGS;

D O I：

10.1061/(ASCE)SC.1943-5576.0000580

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Curved surface sliders are generally preferred for the seismic isolation of buildings because of their technical features, such as the fact that the value of the vibration period is theoretically independent of the mass. Given the experimental evidence that indicates that the isolated system did not work under low seismic actions, in this paper, the influence of the static friction on the global behavior of some structures is studied in detail. By adopting a suitable model of friction, the onset of motion is analyzed with reference to simple isolation systems in which the influence of the friction values and its variability among the isolation devices are analyzed. The results pointed out that the behavior of curved surface sliders is not independent of the vertical load and highlights the importance of a suitable choice of the design friction, which must be different for devices with different vertical loads. (C) 2021 American Society of Civil Engineers.

引用

页数：10

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