展陈浮放文物振动台试验  

Experimental Study on Shaking Table Test of Floating Cultural Relics

作　　者：陈科 刘彤[2] 盛鹰 CHEN Ke;LIU Tong;SHENG Ying(School of Civil Engineering and Architecture,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China;China Academy of Engineering Physics,Mianyang 621900,Sichuan,China)

机构地区：[1]西南科技大学土木工程与建筑学院,四川绵阳621010 [2]中国工程物理研究院,四川绵阳621900

出　　处：《西南科技大学学报》2019年第1期57-62,共6页Journal of Southwest University of Science and Technology

基　　金：西南科技大学研究生创新基金项目(18ycx090)

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.

关 键 词：浮放文物 地震反应 加速度传导比 功率谱密度 振动台 

分 类 号：TU352[建筑科学—结构工程] TU242.5