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（中國(guó)建筑科學(xué)研究院， 北京 100013）

［摘要］以?xún)蓚€(gè)框架結(jié)構(gòu)為研究對(duì)象，在題設(shè)“消能器最大出力相同、總出力接近”的條件下，分析對(duì)比金屬、摩擦、線(xiàn)性黏滯和非線(xiàn)性黏滯四種消能器對(duì)結(jié)構(gòu)抗震性能的改善作用。結(jié)果表明，對(duì)于題設(shè)條件的兩個(gè)框架結(jié)構(gòu)，全樓所有消能器出力總和占無(wú)消能結(jié)構(gòu)基底剪力比處于60%～135%，鋼框架結(jié)構(gòu)加裝消能器后頂點(diǎn)位移減小了50%、基底剪力減小了30%、底層柱水平剪力之和減小了40%，鋼筋混凝土框架結(jié)構(gòu)加裝消能器后頂點(diǎn)位移、基底剪力及底層柱水平剪力之和減小了30%左右，消能器具有良好的減震效果；沿樓層均勻布置消能器能有效縮小不同樓層間的變形差異；四種消能器中，摩擦消能器對(duì)位移變形的控制效率最高，非線(xiàn)性黏滯消能器對(duì)地震力的削減作用最為突出，兩者對(duì)柱水平剪力的削減作用大致相當(dāng)。

［關(guān)鍵詞］消能減震； 鋼框架； 鋼筋混凝土框架； 減震效果； 消能器

中圖分類(lèi)號(hào)：TU352-11文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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

*中國(guó)建筑科學(xué)研究院自籌基金科研項(xiàng)目（20150122330740028）。

作者簡(jiǎn)介：巫振弘，碩士，助理工程師，Email:wuzhenhong@foxmail.com。