The high-strength bolt connection layout has been widely used in steel layouts such as industrial plants, large and medium-sized power plant boilers, multi-storey buildings, and highway bridges. Point-to-point analysis of the performance of high-strength bolts for steel structure layouts. Steel structure high-strength bolts are also called high-strength bolt connection pairs, which are bolts with very high strength. They are usually used on steel structure construction equipment and have a fixed connection effect. The layout of high-strength bolt joints has very obvious economic advantages when used in manufacturing and equipment practice. So far, it has been widely used in steel structure equipment at home and abroad. The application of contradictory connection in high-strength bolts is currently the most widely used. However, due to its own characteristics, the connection of high-strength bolts has many interference factors in its shear resistance, such as the anti-movement index, and the pre-tension value of high-strength bolts also has high-strength bolt grades (10.9 grades or 8.8 grades) ), bolt diameter, stainless steel thickness and its compressive strength level, etc. Maijin pointed out that in the current society, some authoritative experts from all over the world use the method of testing, or the finite element analysis solid model of the solid line to carry out various tests of high-strength bolts, but because the cost of the test is very precious, high-strength Bolt joints have limited physical lines, and meta-analysis models also involve the contact aspect ratio of the material itself and its discrete system behavior, which can lead to calculating the value of use by an amount that exceeds the budget, and is often limited to the layout of the connection points. Imitation cannot be applied to the overall layout. Therefore, we have been trying to find a simple and accurate high-strength bolt connection bending resistance simplified solid model. When connecting high-strength bolts, two nuts with different rotation directions are used. Nuts on the support surface for safe operation are called jam nuts, and nuts on the non-support surface are called lock nuts. When using, tighten the tightening nut first, and then tighten the locking nut. In the case of vibration and impact, the tightening nut will have a tendency to loosen. However, because the loosening and retreating direction of the tightening nut is the tightening direction of the lock nut, the tightening of the lock nut just blocks the loosening of the tightening nut. back, causing the tightening nuts to be unable to loosen.