摘要
在日积月累的自然、人力作用下,北海九龙壁存在着严重的变形。为研究北海九龙壁的变形幅度及变形原因,本文基于近五年北海九龙壁沉降、倾斜变形监测数据,采用理论计算与数值模拟方法,开展了北海九龙壁本体变形与环境温度场分布的相关性研究。结果表明:根据目前已有监测数据,北海九龙壁的倾斜变形值和温度变化之间的皮尔逊系数均大于0.7,双侧相伴系数接近于0,说明北海九龙壁的南北向周期性摆动与环境温度变化之间有显著的高相关性。
Cultural heritage monitoring is the key part of preventive conservation of cultural heritage.As an important cultural heritage,nine-dragon screen in Beihai Park has been seriously deformed due to nature processes and human activity over a long period of time.In order to study the deformation amplitude and causes of the nine-dragon screen in Beihai Park,based on the founda.tion settlement and tilt deforma.tion monitoring data of the nine-dragon screen in recent five years,the correlation between the tilt deformation and the distribution of ambient temperature field of the nine-dragon screen were studied by using theoretical calculation and numerical simulation methods.The results show that according to the existing monitoring data,the Pearson coefficient between the tilt value and temperature change is greater than 0.7,and concomitant probability is close to zero,which indicates that there is a significant high correlation between the two.
作者
白成军
傅程
崔泽楠
岳明
Bai Chengjun;Fu Cheng;Cui Zenan;Yue Ming(School of Architectural Engineering,Tianjin University,300072,China;Beihai Park Management Office,Beijing 100034,China)
出处
《特种结构》
2022年第2期29-34,共6页
Special Structures
基金
国家自然科学基金(51878440)。
关键词
文化遗产
预防性保护
温度变形
相关性
Cultural heritage
Preventive conservation
Temperature deformation
Correlation
