（中国建筑科学研究院， 北京 100013）

［摘要］以两个框架结构为研究对象，在题设“消能器最大出力相同、总出力接近”的条件下，分析对比金属、摩擦、线性黏滞和非线性黏滞四种消能器对结构抗震性能的改善作用。结果表明，对于题设条件的两个框架结构，全楼所有消能器出力总和占无消能结构基底剪力比处于60%～135%，钢框架结构加装消能器后顶点位移减小了50%、基底剪力减小了30%、底层柱水平剪力之和减小了40%，钢筋混凝土框架结构加装消能器后顶点位移、基底剪力及底层柱水平剪力之和减小了30%左右，消能器具有良好的减震效果；沿楼层均匀布置消能器能有效缩小不同楼层间的变形差异；四种消能器中，摩擦消能器对位移变形的控制效率最高，非线性黏滞消能器对地震力的削减作用最为突出，两者对柱水平剪力的削减作用大致相当。

［关键词］消能减震； 钢框架； 钢筋混凝土框架； 减震效果； 消能器

中图分类号：TU352-11文献标识码：A文章编号：1002-848X(2016)18-0071-04

Damping effect comparison of  different kinds of  dampers under the rare earthquakes

Wu Zhenhong, Xue Yantao, Wang Cuikun

(China Academy of Building Research, Beijing 100013, China)

Abstract:With the two frame structures as the object of study, on the assumption that "energy-dissipated dampers have same maximum output and similar total output", four kinds of energy-dissipated dampers of metals, friction, linear viscous and nonlinear viscous dampers were analyzed and compared to study their improvements on the seismic performance of the structure. The results show that for the two frame structures on the given assumption, the ratio of sum of the maximum outputs of the whole building′s energy-dissipated dampers to base shear of the structure without energy-dissipated dampers is between 60%～135%. After installing energy-dissipated dampers in steel frame structure, vertex displacement decreases 50%, base shear decreases 30% and total horizontal shears of bottom layer columns decrease 40%; after installing energy-dissipated dampers in reinforced concrete frame structure, vertex displacement, base shear and total horizontal shears of bottom layer columns decrease about 30% respectively. Energy-dissipated dampers have good damping effects. The deformation differences between different floors can be effectively reduced by uniformly arranging energy-dissipated dampers along the floors. Among four kinds of energy-dissipated dampers, friction energy-dissipated damper has the highest efficiency in controlling displacement, and nonlinear viscous energy-dissipated damper has the most prominent reduction effect on seismic forces, and both dampers have similar effects on reduction of horizontal shear forces of columns.

Keywords:energy dissipation design; steel frame; reinforced concrete frame; damping effect; damper

*中国建筑科学研究院自筹基金科研项目（20150122330740028）。

作者简介：巫振弘，硕士，助理工程师，Email:wuzhenhong@foxmail.com。