本文選題：動(dòng)力能力譜方法 + 靜力能力譜方法��； 參考：《振動(dòng)與沖擊》2016年24期

【摘要】：結(jié)構(gòu)位移放大系數(shù)是預(yù)測(cè)結(jié)構(gòu)在某一地震設(shè)防水準(zhǔn)作用下的最大彈塑性變形,從而指導(dǎo)結(jié)構(gòu)設(shè)計(jì)的參數(shù)。我國(guó)現(xiàn)行抗震設(shè)計(jì)規(guī)范尚未引入結(jié)構(gòu)位移放大系數(shù)�？紤]6、7、8三個(gè)設(shè)防烈度,設(shè)計(jì)了3、5、8、10、12層共15個(gè)鋼筋混凝土框架結(jié)構(gòu),建立其有限元模型,并采用結(jié)構(gòu)振動(dòng)臺(tái)試驗(yàn)對(duì)有限元模型進(jìn)行驗(yàn)證,進(jìn)而對(duì)結(jié)構(gòu)在地震作用下的反應(yīng)進(jìn)行分析。采用文中提出的動(dòng)力能力譜方法,研究按我國(guó)抗震設(shè)計(jì)規(guī)范設(shè)計(jì)的RC框架結(jié)構(gòu)在不同設(shè)防水準(zhǔn)下的位移放大系數(shù)需求值,并與傳統(tǒng)靜力能力譜法得到的位移放大系數(shù)需求值進(jìn)行對(duì)比分析。6、7、8度設(shè)防的RC框架結(jié)構(gòu)的位移放大系數(shù)需求值在中震作用下分別為0.51~1.91、0.49~1.93、0.56~2.24;在大震作用下分別為1.28~4.82、1.40~4.89、1.37~5.56。中震作用下,按我國(guó)抗震設(shè)計(jì)規(guī)范設(shè)計(jì)的鋼筋混凝土框架結(jié)構(gòu)未發(fā)生整體屈服,表明我國(guó)抗震設(shè)計(jì)規(guī)范比較保守。
[Abstract]:The structural displacement magnification factor (DMF) is used to predict the maximum elastoplastic deformation of the structure under the action of a certain earthquake fortification leveling, so as to guide the structural design parameters. The structural displacement magnification factor has not been introduced into the current seismic design code in China. Considering three fortification intensities, 15 reinforced concrete frame structures were designed and their finite element model was established. The finite element model was verified by vibration table test, and the response of the structure under earthquake was analyzed. The dynamic capacity spectrum method proposed in this paper is used to study the displacement magnification factor requirements of RC frame structures designed according to the seismic design code of China under different fortification levels. The results are compared with those obtained by traditional static capacity spectrum method. The displacement magnification factor of RC frame structure with 6 ~ 7 ~ 8 degree fortification is 0.51 ~ 1.91 ~ 0.49 ~ 1.93 ~ 0.56 ~ 2.24 under moderate earthquake respectively, and 1.284.821.40 ~ 4.890 ~ 1.37 ~ (1.37) ~ 5.56 under the action of a large earthquake respectively, and the displacement magnification coefficient of RC frame structure under moderate earthquake is 1.284.821.40 ~ 4.890 ~ (1.37) ~ (1.37) ~ 5.56 respectively under the action of moderate earthquake. Under the action of moderate earthquake, the reinforced concrete frame structure designed according to the seismic design code of our country did not yield as a whole, which indicates that the seismic design code of our country is conservative.
【作者單位】： 福州大學(xué)土木工程學(xué)院;東南大學(xué)土木工程學(xué)院;福建工程學(xué)院土木工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金(51408131;51478118;51508099) 福建省科技廳引導(dǎo)性項(xiàng)目(2016Y0061) 福建省教育廳科技項(xiàng)目(JA15351)
【分類號(hào)】：TU375;TU352.11

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