【摘要】：為研究耗能段長(zhǎng)度對(duì)Y形偏心支撐鋼框架滯回性能的影響,應(yīng)用ABAQUS 13.0建立了8個(gè)不同耗能段長(zhǎng)度的Y形偏心支撐鋼框架模型并對(duì)其進(jìn)行了數(shù)值分析,研究了耗能段長(zhǎng)度變化對(duì)Y形偏心支撐鋼框架承載力、剛度、耗能能力和延性的影響。結(jié)果表明:Y形偏心支撐鋼框架具有良好的滯回性能,耗能段長(zhǎng)度變化對(duì)Y形偏心支撐鋼框架的承載力、剛度、耗能能力及延性均有較大影響;隨著耗能段長(zhǎng)度的增大,Y形偏心支撐鋼框的承載力及剛度呈降低趨勢(shì),功比指數(shù)和延性系數(shù)先增大后降低。此外,根據(jù)有限元分析結(jié)果確定了Y形偏心支撐鋼框架耗能段長(zhǎng)度的合理取值。
[Abstract]:In order to study the effect of energy dissipation length on hysteretic behavior of Y-shaped eccentrically braced steel frame, eight Y-shaped eccentrically braced steel frames with different energy dissipation lengths were established by ABAQUS 13.0 and analyzed numerically. The influence of the length of energy dissipation section on the bearing capacity, stiffness, energy dissipation capacity and ductility of Y-shaped eccentrically braced steel frame is studied. The results show that the Y-shaped eccentrically braced steel frame has good hysteretic performance, and the variation of energy dissipation section length has great influence on the bearing capacity, stiffness, energy dissipation capacity and ductility of Y-shaped eccentrically braced steel frame. With the increase of the length of the energy dissipation section, the bearing capacity and stiffness of the Y-shaped eccentric braced steel frame tend to decrease, while the power ratio index and ductility coefficient increase first and then decrease. In addition, according to the results of finite element analysis, the reasonable value of energy dissipation section length of Y-shaped eccentrically braced steel frame is determined.
【作者單位】： 陜西理工大學(xué)土木工程與建筑學(xué)院;西安建筑科技大學(xué)土木工程學(xué)院;
【分類(lèi)號(hào)】：TU391

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本文編號(hào)：2384387