非線(xiàn)性黏滯阻尼器對(duì)某含較多短柱框架結(jié)構(gòu)的減震控制研究*
張永山，莊初立，汪大洋，蔡長(zhǎng)青，唐承志
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(廣州大學(xué)土木工程學(xué)院，廣州 510006)［摘要］以高烈度區(qū)某含較多短柱的鋼筋混凝土框架結(jié)構(gòu)為研究對(duì)象，針對(duì)結(jié)構(gòu)短柱受剪承載力及彈性層間位移角不滿(mǎn)足規(guī)范要求問(wèn)題，采用非線(xiàn)性黏滯阻尼器對(duì)該框架結(jié)構(gòu)進(jìn)行減震設(shè)計(jì)，進(jìn)行了多遇和罕遇地震作用下的非線(xiàn)性時(shí)程分析。分析結(jié)果表明,設(shè)置非線(xiàn)性黏滯阻尼器后，有效降低了短柱剪力，使之滿(mǎn)足規(guī)范受剪承載力設(shè)計(jì)要求；結(jié)構(gòu)層間位移角顯著減小，多遇和罕遇地震作用下的最大減震效果分別為56.43%和28.32%，非線(xiàn)性黏滯阻尼器在多遇和罕遇地震作用下均具有良好的耗能能力。［關(guān)鍵詞］短柱; 鋼筋混凝土框架; 非線(xiàn)性黏滯阻尼器; 減震效果; 剪力中圖分類(lèi)號(hào)：TU352.1 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)01-0043-04Damping study of the frame structure with many short columns using non-linear viscous dampersZhang Yongshan, Zhuang Chuli, Wang Dayang, Cai Changqing, Tang Chengzhi(School of Civil Engineering of Guangzhou University, Guangzhou 510006, China)Abstract: In order to solve the problem that shear resistant capacity and elastic inter-story drift angle of the short column fail to meet the requirements of code, the reinforced concrete frame structure with many short columns in high seismic fortification intensity zone was adopted as the study object. The damping design with non-linear viscous dampers was carried out on the frame as well as nonlinear time-history analysis under the frequent and rare earthquakes. Analysis results indicate that the shear resistant capacity of the short column reduces effectively with nonlinear viscous dampers and meets requirements of the code. The structural inter-story drift angle reduces significantly. Under the frequent and rare earthquakes, the maximum damping effects are 56.43% and 28.32% respectively. Therefore well energy dissipation ability of the non-linear viscous damper can be found under the frequent and rare earthquakes.Keywords: short column; reinforced concrete frame; non-linear viscous damper; damping effect; shear force*國(guó)家自然科學(xué)基金項(xiàng)目(51378135,51408140)，廣東省高校優(yōu)秀青年教師項(xiàng)目（Yq201402)。作者簡(jiǎn)介：張永山，教授，博士，Email:cholap@163.com。
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