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首页> 外文期刊>Intelligent automation and soft computing >Discussing the Initial Temperature Difference Correction Method for Vibrational Chord Strain Gauge in Bridge Construction Monitoring
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Discussing the Initial Temperature Difference Correction Method for Vibrational Chord Strain Gauge in Bridge Construction Monitoring

机译：桥梁施工监测中振动弦应变仪初始温差校正方法的探讨。

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摘要

Strain monitoring is an important part of the bridge construction monitoring. The strain obtained from field measurements is usually affected by a variety of factors, an important one of which is temperature difference between the initial temperature and measured temperature. Based on the in-depth introduction of vibrational chord strain gauge's working principle, this part of error is analyzed. Through experiments, it is found that there is a significant linear relationship for initial temperature difference effect. On this basis the temperature difference correction fitting values are calculated and linear regression model is established for analysis. Finally, a field project application for a continuous rigid-frame bridge in Province Yunnan, China was conducted, and the results showed that using strain test fitting values to revise, the calculated stress is quite close to the theory one of structure. This correction method effectively eliminated this part of strain caused by temperature difference.
机译：应变监测是桥梁施工监测的重要组成部分。从现场测量获得的应变通常受多种因素影响，其中重要的一个因素是初始温度和测量温度之间的温差。在深入介绍振动弦应变计的工作原理的基础上，分析了这部分误差。通过实验发现，初始温差效应存在明显的线性关系。在此基础上，计算出温差校正拟合值，并建立线性回归模型进行分析。最后，在云南省进行了连续刚构桥的现场工程应用，结果表明，利用应变试验拟合值进行修正，计算得出的应力与结构理论相当接近。这种校正方法有效地消除了由温差引起的这部分应变。

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