终拧扭矩：

Final tightening torque:

高强螺栓最后紧固用的扭矩为终拧扭矩。考虑各种预应力的损失，终拧扭矩一般比按设计预拉力作理论计算的扭矩值大5%～10%。

Torque for final tightening of high strength bolt. Taking into account the loss of a variety of prestress, the final tightening torque is generally calculated by the theoretical calculation of the torque value of 10% ~ 5%.

初拧扭矩：

Initial tightening torque:

为了缩小螺栓紧固过程中钢板变形的影响，可用二次拧紧来减小先后拧紧螺栓之间的相互影响。高强螺栓第一次拧为初拧，使其轴力宜达到标准轴力的60%～80%。

In order to reduce the influence of the deformation of the steel plate in the process of bolt tightening, two times of tightening can be used to reduce the mutual influence between the bolt and the screw bolt. High strength bolts for the first time, so that the axial force should reach the standard axial force of 60% ~ 80%.

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