In order to obtain the true characteristics of ground motions acting on cultural relics, a soil-museum-showcase-cultural relics system model and a rigid foundation (museum-showcase-cultural relics) system model were established. Three seismic wave amplitude modulations were selected for time-history analysis. The analysis of parameters such as, displacement, and cultural relic angle considers the influence of soil-structure interaction (SSI). Taking the Class II site as an example, the analysis and consideration of the law of vibration transmission from soil to cultural relics under the soil-structure interaction provides more accurate data support for judging the safety of cultural relics under earthquake. The results show that for the structure, considering SSI makes the calculated seismic response smaller. For showcases and cultural relics, considering SSI under small earthquakes makes the calculated seismic response smaller. However, under the action of moderate and large earthquakes, the response of display cabinets and cultural relics when considering the SSI effect is often greater than that of rigid foundations. Based on the perspective of protecting cultural relics, the impact of SSI should be considered in earthquake analysis, especially large earthquake analysis. For the Class II site and the 4-story reinforced concrete frame structure, considering the influence of SSI, in the process of seismic wave transmission from the soil to the cultural relic, the structure enters plasticity under the earthquake, and the maximum dynamic amplification factor of the cultural relic is 5.70 (including soil, Structure, power amplification factor of the showcase), the maximum sliding amount is 129.69mm, and the phenomenon of overturning occurs. The spectrum components of each transmission link have certain differences. The structure, display cabinets and cultural relics will all have an impact on the seismic wave spectrum. The impact of each part should be taken into account in the analysis.
Key words
cultural relics /
system-wide model /
soil-structure interaction (SSI) /
rigid foundation /
vibration transmission law
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] 马伯涛, 王毅, 杨维国, 等.博物馆文物微振疲劳试验与分析研究[J]. 振动与冲击, 2015, 34(23): 62-66.
MA Bo-tao, WANG Yi, YANG Wei-guo, et al. Slight fatigue tests and numerical analysis for museum collections [J]. Journal of Vibration and Shock, 2015, 34(23): 62-66.
[2] PARISI F, AUGENTI N. Earthquake damages to cultural heritage constructions and simplified assessment of artworks [J]. Engineering Failure Analysis, 2013, 34(1): 735-760.
[3] Jin Bao Ji,Wei Ming Yan,Qian Zhou. Seismic Damage Causes and Strengthening Methods of Museum Free-Standing Cultural Relics [J]. Applied Mechanics and Materials,2013,2544.
[4] 葛家琪.博物馆防震全系统解决方案与措施研究[J].东南文化,2016(S1):13-15.
GE Jia-qi. Research on the Solutions and Measures of the Museum's Anti-seismic System [J]. Southeastern Culture, 2016(S1):13-15.
[5] 陈科,刘彤,盛鹰.展陈浮放文物振动台试验[J].西南科技大学学报,2019,34(01):57-62.
CHEN Ke, LIU Tong, SHENG Ying. Shaking table test on display of floating cultural relics [J]. Journal of Southwest University of Science and Technology, 2019,34(01):57-62.
[6] 周乾,闫维明,纪金豹.馆藏浮放陶瓷文物地震摇晃响应振动台试验[J].文物保护与考古科学,2013,25(03):48-54.
ZHOU Qian, YAN Wei-ming, JI Jin-bao. Shaking table test of seismic response of floating ceramic cultural relics [J]. Conservation of Cultural Relics and Archaeological Science, 2013,25(03):48-54.
[7] 马伯涛,葛家琪,吴来明,等.《馆藏文物防震规范》关键技术——博物馆楼层水平动力放大系数研究[J].建筑结构,2018,48(19):19-23.
MA Bo-tao, GE jia-qi, WU Lai-ming, et al. The key technology of "Code for Anti-seismic of Cultural Relics in Collections"——Study on the horizontal dynamic amplification factor of museum floors [J]. Building Structure, 2018,48(19):19-23.
[8] 王亚,杨维国,王萌,等.地震作用下某大型隔震博物馆楼层波及楼层反应谱研究[J].振动与冲击,2019,38(08):203-209.
WANG Ya, YANG Wei-guo, WANG Meng, et al. Floor wave and floor response spectrum research of one large base-isolated museum under earthquake [J]. Vibration and Shock, 2019,38(08):203-209.
[9] 王亚,杨维国,王萌,等.博物馆结构隔震前后楼层反应谱及设计谱[J].哈尔滨工业大学学报,2018,50(12):125-132.
WANG Ya, YANG Wei-guo, WANG Meng, et al. Floor response spectrum and design spectrum before and after the museum structure is isolated [J]. Journal of Harbin Institute of Technology, 2018,50(12):125-132.
[10] 赵守江,杨永强,戴君武.故宫雨花阁动力特性及地震响应分析[J].世界地震工程,2020,36(01):85-92.
ZHAO Shou-jiang, YANG Yong-qiang, DAI Jun-wu. Dynamic Characteristics and Seismic Response Analysis of Yuhua Pavilion of the Forbidden City [J]. World Earthquake Engineering, 2020,36(01):85-92.
[11] 于建军. 博物馆结构—文物陈列系统的防震性能研究[D].西安建筑科技大学,2017.
YU Jian-jun. Research on the seismic performance of museum structure-cultural relics display system [D]. Xi'an University of Architecture and Technology, 2017.
[12] 苏晓雪. 馆藏可移动文物防震性能研究[D].北京交通大学,2013.
SU Xiao-xue. Research on Anti-seismic Performance of Movable Cultural Relics in Collection [D]. Beijing Jiaotong University, 2013.
[13] Qian Zhou,Wei Ming Yan. Oscillation Response of Museum Cultural Relics under Earthquake by Shaking Table Tests [J]. Applied Mechanics and Materials,2012,1473.
[14] 刘晶波,谷音,杜义欣.一致粘弹性人工边界及粘弹性边界单元[J].岩土工程学报,2006(09):1070-1075.
LIU Jing-bo, GU Yin, DU Yi-xin. Consistent viscoelastic artificial boundary and viscoelastic boundary element [J]. Chinese Journal of Geotechnical Engineering, 2006(09):1070-1075.
[15] 丛龙. 考虑土—结构相互作用的地震反应分析[D].东北大学,2013.
CONG Long. Earthquake response analysis considering soil-structure interaction [D]. Northeastern University, 2013.
[16] 中华人民共和国建设部. 建筑抗震设计规范: GB50011-2010[S]. 北京: 中国建筑工业出版社, 2010.
Ministry of Housing and Urban-Rural Development of the People’s Republic of China. Code for seismic design of buildings: GB50011-2010 [S]. Beijing: China Architecture & Building Press, 2010. (in Chinese)
[17] 张望喜,刘睿,曹亚栋,等.考虑土-独立基础-结构相互作用的钢筋混凝土框架结构抗震性能研究[J].地震工程与工程振动,2019,39(04):86-97.
ZHANG Wang-xi, LIU Rui, CAO Ya-dong, et al. Research on seismic performance of reinforced concrete frame structure considering soil-independent foundation-structure interaction [J]. Earthquake Engineering and Engineering Vibration, 2019,39(04):86-97.
[18] 邝文浩. 考虑土—结构相互作用的筏基框架结构地震反应分析[D].华南理工大学,2016.
KUANG Wen-hao. Seismic response analysis of raft frame structure considering soil-structure interaction [D]. South China University of Technology, 2016.
[19] 范刚,张建经,周立荣,等.水平成层场地动力特性研究[J].西南交通大学学报,2016,51(06):1121-1130.
FAN Gang, ZHANG Jian-jing, ZHOU Li-rong, et al. Research on Dynamic Characteristics of Horizontal Stratified Site [J]. Journal of Southwest Jiaotong University, 2016,51(06):1121-1130.
{{custom_fnGroup.title_en}}
Footnotes
{{custom_fn.content}}