工程振动对馆藏大型石造像文物的影响评估与减振控制  

Assessment of the Impact of Engineering Vibrations on the Large Stone Statue in Museum and Anti-vibration Control

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作  者:许卫晓[1] 韩东霖 于德湖 邱玉胜 邱玲玲 XU Weixiao;HAN Donglin;YU Dehu;QIU Yusheng;QIU Lingling(School of Civil Engineering,Qingdao University of Technology,Qingdao 266033,Shandong,China;Shandong Jianzhu University,Jinan 250010,Shandong,China;Qingdao Museum,Qingdao 266061,Shandong,China;Qingdao Dingtai Changrong Innovation Technology Co.,Ltd.,Qingdao 266799,Shandong,China)

机构地区:[1]青岛理工大学土木工程学院,山东青岛266033 [2]山东建筑大学,山东济南250010 [3]青岛市博物馆,山东青岛266061 [4]青岛鼎泰常容创新科技有限公司,山东青岛266799

出  处:《地震研究》2025年第3期460-471,共12页Journal of Seismological Research

基  金:山东自然科学基金(ZR2022ME029);山东省重点研发计划(2021CXGC011204).

摘  要:为了解决在实际施工活动中工程振动对馆藏石造像文物的潜在危胁,基于ABAQUS有限元分析,建立了青岛市博物馆4尊大型石造像的有限元模型。对石造像有限元模型基底施加实测施工振动,通过有限元逐步增量动力时程分析,结合石造像抗拉强度本构关系、长期振动监测,得到合理的石造像文物振动安全阈值。提出大型石造像文物的数值建模方法,开展了修缮材料水硬性石灰抗拉强度试验。结果表明:4尊石造像的脖颈处、足部为振动敏感区域,可采用有针对性的保护措施。右侧石佛造像因其体量及本构参数的不同,对工程振动最为敏感,建议工程振动安全阈值设为1.5 mm/s。To address the possible influence to the four stone Buddha statues in the Qingdao Museum brought by construction activities,we use the Finite Element Analysis software,ABAQUS,to build the Finite Element models of these statues.Then we apply the measured vibration to the bases of the Finite Element models,and do incremental dynamic analysis.Referring to the tensile-strength constitutive relations of the statues and the results from their long-term vibration monitoring,we propose vibration safety threshold for these stone statues.In addition,we put forward a numerical modeling method for large-scale stone statues,and carry out a tensile-strength test of hydraulic lime,a kind of restoration material.The results indicate that the neck and the feet of the stone Buddha statues are vulnerable to vibration,and need special protective measures.The Buddha statue on the right side is most sensitive to engineering vibration due to its unique volume and special constitutive parameters.The recommended safety threshold of engineering vibration for this statue is 1.5 mm/s.

关 键 词:石造像文物 工程振动 振动响应 文物保护 有限元分析 

分 类 号:P315.92[天文地球—地震学]

 

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