不同構(gòu)造和不同組合減震層高層結(jié)構(gòu)地震反應(yīng)分析*
周云，林紹明，鄧雪松
- 摘 要
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（廣州大學(xué)土木工程學(xué)院，廣州 510006）［摘要］對(duì)設(shè)置防屈曲減震層、黏滯減震層和黏彈性減震層的框架-核心筒高層結(jié)構(gòu)進(jìn)行地震反應(yīng)分析，研究不同構(gòu)造和不同組合減震層對(duì)高層結(jié)構(gòu)的減震效果，優(yōu)選具有良好減震效果的減震層構(gòu)造方案和組合方案。研究結(jié)果表明，設(shè)置伸臂桁架減震層對(duì)高層結(jié)構(gòu)的水平位移、層間位移角和層間剪力等地震反應(yīng)均具有良好的減震控制效果；基于構(gòu)造簡(jiǎn)單、耗能效率高和減震效果良好的原則，在伸臂桁架減震層中設(shè)置防屈曲支撐時(shí)，宜采用對(duì)角單斜撐型和雙斜撐型構(gòu)造；設(shè)置黏彈性阻尼器時(shí)，宜采用雙斜撐型構(gòu)造；設(shè)置黏滯阻尼器時(shí)，宜采用雙斜撐型和剪切連接型構(gòu)造；不同減震層組合方案對(duì)結(jié)構(gòu)變形的控制效果相差較小，對(duì)結(jié)構(gòu)基底剪力的控制效果相差較大，其中采用黏滯減震層和黏彈性減震層進(jìn)行優(yōu)化組合時(shí)，對(duì)結(jié)構(gòu)基底剪力的減震效果較好。［關(guān)鍵詞］框架-核心筒結(jié)構(gòu); 減震層; 防屈曲支撐; 黏滯阻尼器; 黏彈性阻尼器中圖分類(lèi)號(hào)：TU973.2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)01-0037-06Seismic response analysis of high-rise buildings with energy-dissipation stories of different details and combinationsZhou Yun, Lin Shaoming, Deng Xuesong(School of Civil Engineering, Guangzhou University, Guangzhou 510006, China)Abstract: Based on seismic response analysis on frame-corewall structure with buckling restrained energy-dissipation story, viscous energy-dissipation story and viscoelastic energy-dissipation story respectively, damping control effects of energy-dissipation stories with different details and combinations on high-rise buildings were studied. The optimal detail and combination scheme of energy-dissipation story with best energy-dissipation effect were investigated. The results show that outriggers set in energy-dissipation story are benefit for damping control on reducing horizontal displacement, inter-story drifts and shear forces. Based on the principle of simple detail, high energy-dissipation efficiency and well damping effect, details for buckling restrained braces set in outriggers in energy-dissipation story should be single diagonal brace scheme and double brace scheme. Details for viscoelastic dampers should be double brace scheme. Details for viscous dampers should be double brace scheme and shear connection scheme. Differences of structural deformation control effects of different combinations of energy-dissipation stories are small, while differences of base shear control effects are relatively large. Combination scheme of viscous energy-dissipation story and viscoelastic energy-dissipation story performs better for control effect on structural base shear.Keywords: frame-corewall structure; energy-dissipation story; buckling restrained brace; viscous damper; viscoelastic damper*廣東省自然科學(xué)基金團(tuán)隊(duì)項(xiàng)目(8351009101000001)，廣州市高校“羊城學(xué)者”首席科學(xué)家項(xiàng)目(10A026S)。作者簡(jiǎn)介：周云，博士，教授，Email：zhydxs@163.com。參考文獻(xiàn)［1］周云, 鄧雪松, 吳從曉. 高層建筑耗能減震新體系概念與實(shí)現(xiàn)［J］. 工程抗震與加固改造, 2007,29(6):1-9.［2］丁鯤, 周云, 鄧雪松. 框架-核心筒結(jié)構(gòu)耗能減震層的減震效果分析［J］. 工程抗震與加固改造, 2007,29(3):35-40.［3］鄧雪松, 丁鯤, 周云. 耗能減震層對(duì)框架-核心筒結(jié)構(gòu)的減震效果及影響分析［J］. 工程抗震與加固改造,2008,30(1):1-8.［4］丁鯤, 周云, 鄧雪松. 帶加強(qiáng)層和粘滯耗能減震層的超高層結(jié)構(gòu)地震反應(yīng)對(duì)比分析［J］. 工程抗震與加固改, 2009,31(1):35-43.［5］汪大洋, 周云, 王紹合. 耗能減振層對(duì)某超高層結(jié)構(gòu)的減振控制研究［J］. 振動(dòng)與沖擊, 2011,30(2):85-92.［6］ZHOU Y, LIN S M, WU C X, et al. Analysis of high-rise building with energy-dissipation story system［C］// Portugal：Proceedings of 15th World Conference on Earthquake Engineering, 2012.［7］林紹明, 周云, 鄧雪松. 帶黏滯減震層高層結(jié)構(gòu)的優(yōu)化分析［J］. 土木工程學(xué)報(bào), 2013, 46(10): 71-81.［8］林紹明. 帶耗能減震層高層結(jié)構(gòu)體系分析與設(shè)計(jì)方法研究［D］. 廣州: 廣州大學(xué), 2014.［9］GB 50011—2010 建筑抗震設(shè)計(jì)規(guī)范［S］. 北京: 中國(guó)建筑工業(yè)出版社, 2010.
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