884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

(大連理工大學(xué)土木水利學(xué)院，大連 116024)

［摘要］提出利用磁流變阻尼器（MRD）對(duì)有損傷結(jié)構(gòu)進(jìn)行智能加固。根據(jù)MRD的特點(diǎn)，結(jié)合我國(guó)抗震設(shè)計(jì)規(guī)范，給出MRD智能加固的三個(gè)等級(jí)性能目標(biāo)，對(duì)其進(jìn)行量化，并確定MRD智能加固的設(shè)計(jì)要點(diǎn)。利用MRD對(duì)一有損傷鋼筋混凝土框-剪偏心結(jié)構(gòu)進(jìn)行抗震加固，并進(jìn)行振動(dòng)臺(tái)試驗(yàn)。結(jié)果表明，采用MRD智能加固后的結(jié)構(gòu)抗震性能大大提高，優(yōu)于用被動(dòng)控制方法加固的結(jié)構(gòu)。

［關(guān)鍵詞］抗震加固；磁流變阻尼器；性能目標(biāo)；振動(dòng)臺(tái)試驗(yàn)

Experimental research on MRD intelligent seismic retrofitting of structure

Li Hongnan, Li Xiuling(School of Civil and Hydraulic Engineering, Dalian University of Technoogy, Dalian 116024,China)

Abstract:The analysis and design method of seismic retrofitting for earthquake damaged RC frame shear wall structure using magnetorheological damper (MRD) is proposed. Three levels of fortification objects are put forward for intelligent retrofitting of RC frame shear wall structure using MRD, and the fortification objects are quantified. A concrete procedure is developed for seismic retrofit using MRD. The shaking table experiment of seismic retrofitting of earthquake damaged RC frame shear wall structure using MRD is implemented. The experimental results indicate that MRD can significantly enhance aseismic performance level of the seismic damaged RC frame shear wall structure, and meet all the earthquake fortification levels.

Keywords:seismic retrofitting; magnetorheological damper; performance level; shaking table experiment

*國(guó)家杰出青年科學(xué)基金項(xiàng)目(50025823)，海外青年學(xué)者合作研究基金資助項(xiàng)目(50328807)。

作者簡(jiǎn)介：李宏男，長(zhǎng)江學(xué)者特聘教授，博導(dǎo)，Email:hnli@dlut.edu.cn。

參考文獻(xiàn)

［1］GB50011—2001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,2001.

［2］AHMED GHOBARAH. Performance based design in earthquake engineering: state of developed［J］. Engineering Structures, 2001, 23: 878-884.

［3］小谷俊介. 日本基于性能結(jié)構(gòu)抗震設(shè)計(jì)方法的發(fā)展［J］. 建筑結(jié)構(gòu), 2000，30(6): 3-9.

［4］吳波,李惠,李玉華. 結(jié)構(gòu)損傷分析的力學(xué)方法［J］. 地震工程與工程振動(dòng), 1997, 17(1): 14-22.

［5］丁春花，周云，鄧雪松，等.耗能減震加固結(jié)構(gòu)的性能水準(zhǔn)與設(shè)防目標(biāo)［J］.工程抗震與加固改造，2004(6)：35-40.

［6］ATC-40. Seismic evaluation and retrofit of concrete building［R］. Applied Technology Council. Red Wood City, California, 1996.

［7］魏璉,鄭久建, 韋承基，等. 論粘滯阻尼減震結(jié)構(gòu)及其抗震設(shè)計(jì)方法［J］. 建筑結(jié)構(gòu), 2004, 34(10): 10-16.

［8］李秀領(lǐng).非對(duì)稱建筑結(jié)構(gòu)的磁流變阻尼器半主動(dòng)控制［D］. 大連: 大連理工大學(xué), 2006.