Numerical Study on the Mechanical Properties of Transmission Tower K-Joints under Cyclic Loading

Table 1

Numerical scheme.

Case no.	Initial torque (N·m)	Friction coefficient of component	Friction coefficient of nut	Eccentric distance (mm)	Bolt hole diameter (mm)	Component material	Bolt spacing (mm)	Bolt grade
Case 1	100	0.3	0.3	50	22	Q345	100	6.8
Case 2	125	0.3	0.3	50	22	Q345	100	6.8
Case 3	150	0.3	0.3	50	22	Q345	100	6.8
Case 4	100	0.2	0.3	50	22	Q345	100	6.8
Case 5	100	0.4	0.3	50	22	Q345	100	6.8
Case 6	100	0.3	0.3	50	22	Q420	100	4.8
Case 7	100	0.3	0.3	50	22	Q420	100	6.8
Case 8	100	0.3	0.3	50	22	Q420	100	8.8
Case 9	100	0.3	0.3	50	22	Q420	100	10.9
Case 10	100	0.3	0.3	50	22	Q345	80	6.8
Case 11	100	0.3	0.3	100	22	Q345	100	6.8
Case 12	100	0.3	0.3	50	20	Q345	100	6.8
Case 13	100	0.3	0.2	50	22	Q345	100	6.8