Method of Separating Temperature Effect of Daily Solar Radiation from Strain Monitoring of a Concrete Bridge

被引：0
|
作者：
Wang, Yubin [1 ]
Wang, Lei [1 ]
Yan, Kai [2 ]
机构：
[1] Univ Jinan, Sch Civil Engn & Architecture, Jinan 250022, Peoples R China
[2] Shandong Jianzhu Univ, Sch Civil Engn, Jinan 250101, Peoples R China
来源：
HEALTH MONITORING OF STRUCTURAL AND BIOLOGICAL SYSTEMS XV | 2021年 / 11593卷
基金：
中国国家自然科学基金;
关键词：
structural health monitoring; concrete bridge; strain; solar radiation; unary linear fitting; temperature effect;
D O I：
10.1117/12.2589002
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
The monitoring value of strain of a concrete bridge is mainly affected by concrete shrinkage and creep, temperature, vehicle loads, etc. Seasonal temperature, daily solar radiation and cold current are the main influencing factors of temperature. Among them, temperature effect of daily solar radiation has a significant impact on the monitoring value of strain. Based on the monitoring data of the concrete bridge in Dongying City, Shandong Province, China, a method to separate the temperature effect of daily solar radiation from the monitoring value of strain of the bridge health monitoring system is obtained. Based on the analysis of the monitoring data of strain and temperature in the concrete girder, a model of the relationship between strain and temperature was established by using the unary linear fitting method. The strain separated from temperature effect of daily solar radiation can provide an effective basis for safety assessment of a concrete bridge.
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页数：8
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