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基础隔震结构扭转减震评价
The damping evaluation of the base-isolated structures
【摘要】 对不同隔震层偏心率的基础隔震结构进行了分析,提出了扭转减震系数的概念。通过对比水平减震系数与扭转减震系数,得到如下结论:隔震层偏心率在5%以下时,上部结构水平减震系数要大于扭转减震率;当隔震层偏心率大于5%时,上部结构水平减震系数要小于扭转减震系数,此时结构减震效果不能用水平减震系数来表示。
【Abstract】 Analyzed the different isolation layer eccentrictiy of the base-isolated structures,proposed the concept of the torsion damping coefficient.By comparing the horizontal damping coefficient with the torsion damping coefficient,conclusions are drawn: when the isolation layer eccentricity < 5%,the damping coefficient of upperstruc ture is greater than the torsion damping coefficient,when the isolation layer eccentricity > 5%,the horizontal damping coefficient of upperstruc ture is less than the torsion damping coefficient,the structure damping effect can’t be represented by the horizontal damping coefficient at this time.
【Key words】 ETABS; torsion angle; the horizontal damping coefficient; the torsion damping coefficient;
- 【文献出处】 山西建筑 ,Shanxi Architecture , 编辑部邮箱 ,2013年03期
- 【分类号】TU352.12
- 【下载频次】57