基于SMA拉索的单索面拱桥桥面多维振动控制方法
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摘要
首次提出了利用NiTi形状记忆合金伪弹性、高耗能、大阻尼、抗疲劳、耐腐蚀的特性来抑制单索面拱桥桥面横向扭转、纵飘和竖弯等多维振动方法.并利用Midas/Civil软件建立了安装NiTi形状记忆合金拉索前后的单索面拱桥的全桥有限元对比计算分析模型,进行了验证校核.研究结果表明:安装NiTi拉索可大幅度减小单索面拱桥纵向位移和横向扭转位移,并明显提高行车舒适度.
NiTi shape memory alloys(SMA),flexibility,energy-intensive,large damping,antifatigue,corrosion,are first applied to restrain deck torsional,longitudinal floating and vertical bending of multidimensional vibration.The comparative analysis models of single cable plane arch bridge,installing NiTi shape memory alloy cable or not,are established by the Midas/Civil software to validate its effects.The results of the study show that installing NiTi SMA cable can greatly reduce longitudinal displacement and horizontal torsional displacement and obviously improve the driving comfort for the single cable plane arch bridge.
NiTi shape memory alloys(SMA),flexibility,energy-intensive,large damping,antifatigue,corrosion,are first applied to restrain deck torsional,longitudinal floating and vertical bending of multidimensional vibration.The comparative analysis models of single cable plane arch bridge,installing NiTi shape memory alloy cable or not,are established by the Midas/Civil software to validate its effects.The results of the study show that installing NiTi SMA cable can greatly reduce longitudinal displacement and horizontal torsional displacement and obviously improve the driving comfort for the single cable plane arch bridge.
引文
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[1]刘颖浩,王永倬.一种异型钢管混凝土拱桥设计[J].辽宁交通科技,2004(12):46-48.
[2]潘湘文,马坤全,张欣欣.单拱肋结合梁组合拱桥稳定分析[J].结构工程师,2009,25(6):41-46.
[3]刘庆锁.形状记忆合金及其工程应用[J].天津理工学院学报,2001,17(3):68-72.
[4]薛素铎,卞晓芳.SMA-MR阻尼器在大跨度挑篷结构中的减振控制研究[J].空间结构,2005,21(2):19-26.
[5]李黎,陈元坤,朱宏平,等.行车荷载作用下隔震双层连续梁桥的舒适度评价[J].工程抗震与加固改造,2009,31(6):103-107.
[6]王旭军,钟明全,刘建波,等.简支梁桥上拱度对高速行车舒适性影响研究[J].重庆交通大学学报:自然科学版,2007,26(6):60-63.
[7]李正英,李正良.空间地震动作用下大跨度拱桥地震响应分析[J].重庆大学学报,2009,32(8):920-924.
[8]王健,沈亚鹏,王社良.形状记忆合金的本构关系[J].上海力学,1998,19(3):185-195.
[11]李黎,叶志雄,王欣,等.移动荷载作用下特大悬索桥的行车舒适性[J].公路交通科技,2007,24(9):46-50.
[2]PAN Xiang-wen,MA Kun-quan,ZHANG Xin-xin.Stability analysis of a steel-concrete composite tied-arch bridge with combined slab[J].Structural Engineers,2009,25(6):41-46.(in Chinese)
[3]LIU Qing-suo.Shape memory alloy and its applications on the engineering[J].Journal of Tianjin Institute of Technology,2001,17(3):68-72.(in Chinese)
[4]XUE Su-duo,BIAN Xiao-fang.Vibration control in long-span canopy roof structures using composite SMA-MR damper[J].Spatial Structure,2005,21(2):19-26.(in Chinese)
[5]LI Li,CHEN Yuan-kun,ZHU Hong-ping,et al.Riding comfort evaluation of isolated double-decker continuous bridge un-der moving vehicle loads[J].Earthquake Resistant Engineering and Retrofitting,2009,31(6):103-107.(in Chinese)
[6]WANG Xu-jun,ZHONG Ming-quan,LIU Jian-bo,et al.Analysis of high speed driving comfort impacted by deflection up-wards of PC bridges[J].Journal of Chongqing Jiaotong University:Natural Science Edition,2007,26(6):60-63.(in Chi-nese)
[7]LI Zheng-ying,LI Zheng-liang.Random response of long-span arch bridge under the spatial variation of seismic ground Mo-tions[J].Journal of Chongqing University,2009,32(8):920-924.(in Chinese)
[8]WANG Jian,SHEN Ya-peng,WANG She-liang.The development of the constitutive relation of a shape memory alloy[J].Shanghai Journal of Mechanics,1998,19(3):185-195.(in Chinese)
[9]Ozdemir H.Nonlinear transient dynamic analysis of yielding structures[D].Berkeley:University of California,1976.
[10]Graesser E J,Cozzarelli F A.Shape memory alloys as new materials for seismic isolation[J].Journal of Engineering Me-chanics,1991,117(11):2590-2608.
[11]LI Li,YE Zhi-xiong,WANG Xin,et al.Riding comfort of long-span suspension bridge under moving loads[J].Journal of Highway and Transportation Research and Development,2007,24(9):46-50.(in Chinese)
[1]刘颖浩,王永倬.一种异型钢管混凝土拱桥设计[J].辽宁交通科技,2004(12):46-48.
[2]潘湘文,马坤全,张欣欣.单拱肋结合梁组合拱桥稳定分析[J].结构工程师,2009,25(6):41-46.
[3]刘庆锁.形状记忆合金及其工程应用[J].天津理工学院学报,2001,17(3):68-72.
[4]薛素铎,卞晓芳.SMA-MR阻尼器在大跨度挑篷结构中的减振控制研究[J].空间结构,2005,21(2):19-26.
[5]李黎,陈元坤,朱宏平,等.行车荷载作用下隔震双层连续梁桥的舒适度评价[J].工程抗震与加固改造,2009,31(6):103-107.
[6]王旭军,钟明全,刘建波,等.简支梁桥上拱度对高速行车舒适性影响研究[J].重庆交通大学学报:自然科学版,2007,26(6):60-63.
[7]李正英,李正良.空间地震动作用下大跨度拱桥地震响应分析[J].重庆大学学报,2009,32(8):920-924.
[8]王健,沈亚鹏,王社良.形状记忆合金的本构关系[J].上海力学,1998,19(3):185-195.
[11]李黎,叶志雄,王欣,等.移动荷载作用下特大悬索桥的行车舒适性[J].公路交通科技,2007,24(9):46-50.
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