應(yīng)用SMA控制空間結(jié)構(gòu)地震響應(yīng)振動(dòng)臺試驗(yàn)研究
發(fā)布時(shí)間:2018-10-26 10:41
【摘要】:形狀記憶合金是一種具有多種特性的新興功能材料,本文針對地震作用下空間結(jié)構(gòu)的主要受力和變形特點(diǎn),基于形狀記憶合金獨(dú)特的超彈性和形狀記憶效應(yīng)等,研發(fā)了形狀記憶合金被動(dòng)控制、主/被動(dòng)混合控制系統(tǒng),將其集成于空間結(jié)構(gòu)模型中,并進(jìn)行了相應(yīng)的模擬地震振動(dòng)臺試驗(yàn)和分析。研究結(jié)果表明,對空間結(jié)構(gòu)模型施加不同幅值的地震波,混合方案的控制效果明顯優(yōu)于優(yōu)化方案和隨機(jī)方案,加速度和層間位移明顯減小,提高了空間結(jié)構(gòu)的整體抗震性能。
[Abstract]:Shape memory alloy (SMA) is a new functional material with many characteristics. In this paper, according to the main stress and deformation characteristics of spatial structures under earthquake, based on the unique hyperelastic and shape memory effects of SMA, The shape memory alloy passive control active / passive hybrid control system is developed and integrated into the spatial structure model and the corresponding shaking table test and analysis are carried out. The results show that the control effect of the hybrid scheme is better than that of the optimization scheme and the random scheme, and the acceleration and the interstory displacement are reduced obviously, and the overall seismic performance of the spatial structure is improved by applying the seismic waves with different amplitudes to the spatial structure model.
【作者單位】: 西京學(xué)院土木工程學(xué)院;西安建筑科技大學(xué)土木工程學(xué)院;
【基金】:國家自然科學(xué)基金資助項(xiàng)目(51178388,51008245,51678480) 陜西省教育廳重點(diǎn)實(shí)驗(yàn)室科研計(jì)劃項(xiàng)目(11JS059,12JS055) 陜西省科技統(tǒng)籌創(chuàng)新計(jì)劃項(xiàng)目(2013SZS01-Z02,2013SZS01-K01) 陜西省工業(yè)攻關(guān)項(xiàng)目(2014K06-34)
【分類號】:TU352.1
[Abstract]:Shape memory alloy (SMA) is a new functional material with many characteristics. In this paper, according to the main stress and deformation characteristics of spatial structures under earthquake, based on the unique hyperelastic and shape memory effects of SMA, The shape memory alloy passive control active / passive hybrid control system is developed and integrated into the spatial structure model and the corresponding shaking table test and analysis are carried out. The results show that the control effect of the hybrid scheme is better than that of the optimization scheme and the random scheme, and the acceleration and the interstory displacement are reduced obviously, and the overall seismic performance of the spatial structure is improved by applying the seismic waves with different amplitudes to the spatial structure model.
【作者單位】: 西京學(xué)院土木工程學(xué)院;西安建筑科技大學(xué)土木工程學(xué)院;
【基金】:國家自然科學(xué)基金資助項(xiàng)目(51178388,51008245,51678480) 陜西省教育廳重點(diǎn)實(shí)驗(yàn)室科研計(jì)劃項(xiàng)目(11JS059,12JS055) 陜西省科技統(tǒng)籌創(chuàng)新計(jì)劃項(xiàng)目(2013SZS01-Z02,2013SZS01-K01) 陜西省工業(yè)攻關(guān)項(xiàng)目(2014K06-34)
【分類號】:TU352.1
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