The torque control method is mainly used as a clamping method for high-strength bolts in Korea and Japan. However, the torque coefficient affects the tension that is required during the process of tightening by torque. This makes it difficult to assume the direct tension induced into the bolt. The determinant factor that affects the clamping force is the ambient temperature, as indicated by the Korean standard B 2819. This study was planned to assess the expected clamping force of two types of high-strength bolts considering a temperature range of-10 to 50°C. Based on laboratory data subjected to temperature parameters, equations to estimate the clamping force were extracted by regression analysis.

中文翻译：

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估算温度变化对高强度螺栓夹紧力的方法

在韩国和日本，扭矩控制方法主要用作高强度螺栓的夹紧方法。然而，扭矩系数影响在通过扭矩紧固过程中所需的张力。这使得很难假设直接的张力被引入螺栓中。如韩国标准B 2819所示，影响夹紧力的决定性因素是环境温度。该研究计划在10至50°的温度范围内评估两种类型的高强度螺栓的预期夹紧力C。根据受温度参数影响的实验室数据，通过回归分析提取估计夹紧力的方程式。