展陈浮放文物振动台试验
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摘要
为研究博物馆展陈浮放文物地震反应特征,以浮放文物高宽比γ和质量m为试验变量,进行了振动台试验,研究了不同频谱特性、不同强度地震动作用下浮放文物的地震反应,分析了浮放文物加速度响应时程曲线及加速度传导比曲线。结果表明,展陈浮放文物地震反应复杂,与地震动频谱特性、强度及文物自身特性(质量、高宽比、接触面摩擦系数及动力特性)显著相关;浮放文物地震反应频谱丰富,主要以较高频和高频为主;浮放文物加速度响应随地震强度基本呈单调递增,进行防震设计时可考虑增大浮放文物质量以降低其地震反应。
The shaking table test of floating culture relics with different aspect ratio and mass were conducted to investigate the characteristics of seismic response under different frequency spectrum and intensity ground motions. The acceleration response time history curves and acceleration transmission ratio curves of floating relic were analyzed. The experimental results show that seismic response of floating cultural relics are complex,which is significantly related to the earthquake frequency spectrum,intensity and characteristics of cultural relics themselves( mass,aspect ratio,friction coefficient of contact surface and dynamic characteristics); the seismic response spectrum is mainly higher frequency and high frequency;the acceleration response increases monotonously with the earthquake intensity. The quality of floating antiquities can be increased to reduce the seismic response when seismic design is carried out.
The shaking table test of floating culture relics with different aspect ratio and mass were conducted to investigate the characteristics of seismic response under different frequency spectrum and intensity ground motions. The acceleration response time history curves and acceleration transmission ratio curves of floating relic were analyzed. The experimental results show that seismic response of floating cultural relics are complex,which is significantly related to the earthquake frequency spectrum,intensity and characteristics of cultural relics themselves( mass,aspect ratio,friction coefficient of contact surface and dynamic characteristics); the seismic response spectrum is mainly higher frequency and high frequency;the acceleration response increases monotonously with the earthquake intensity. The quality of floating antiquities can be increased to reduce the seismic response when seismic design is carried out.
引文
[1]周乾,闫维明.传统方法加固馆藏浮放文物抗震性能试验[J].文物保护与考古科学,2015,5(2):63-72.
[2]周乾,闫维明.汶川地震可移动文物震害研究[J].文物保护与考古科学,2010,(3):36-43.
[3]韦荃,陈显丹.汶川大地震对四川可移动文物的损坏与启示[J].四川文物,2008,(8):10-13.
[4]四川省文物考古研究院."4. 20"芦山地震四川文物保护单位受损情况调查报告[J].四川文物,2013,(3):3-8.
[5]吴来明,王忠良,高华平.博物馆文物的防震保护研究(三)———陈列文物的地震安全性分析[J].文物保护与考古科学,2005,(S1):139-151.
[6]王林.日本博物馆展览的地震受害与防护研究[J].中国博物馆通讯,2008,(7):10-11.
[7]王彦林,唐德高.冲击作用下浮放物体倾倒分析[J].西部探矿工程,2005,(2):119-120.
[8]吴伟.浮放设备地震反应数值模拟研究[D].黑龙江哈尔滨:中国地震局工程力学研究所,2006.
[9] YADAV D,GIRDHAR P,KUMAR V. Earthquake vulnerability of free standing monolithic statues[J]. Europ J Sci Res,2010 144(2):355-373.
[10] WW/T 0669-2015,馆藏文物防震规范[S].
[2]周乾,闫维明.汶川地震可移动文物震害研究[J].文物保护与考古科学,2010,(3):36-43.
[3]韦荃,陈显丹.汶川大地震对四川可移动文物的损坏与启示[J].四川文物,2008,(8):10-13.
[4]四川省文物考古研究院."4. 20"芦山地震四川文物保护单位受损情况调查报告[J].四川文物,2013,(3):3-8.
[5]吴来明,王忠良,高华平.博物馆文物的防震保护研究(三)———陈列文物的地震安全性分析[J].文物保护与考古科学,2005,(S1):139-151.
[6]王林.日本博物馆展览的地震受害与防护研究[J].中国博物馆通讯,2008,(7):10-11.
[7]王彦林,唐德高.冲击作用下浮放物体倾倒分析[J].西部探矿工程,2005,(2):119-120.
[8]吴伟.浮放设备地震反应数值模拟研究[D].黑龙江哈尔滨:中国地震局工程力学研究所,2006.
[9] YADAV D,GIRDHAR P,KUMAR V. Earthquake vulnerability of free standing monolithic statues[J]. Europ J Sci Res,2010 144(2):355-373.
[10] WW/T 0669-2015,馆藏文物防震规范[S].