According to the weigao Bolt Factory today, we learned that the deviation of anchor bolts is a very dangerous thing, and it also damages the life of the infrastructure. Today, we will share with you based on the four elements we have learned from the weigao Bolt Factory. Certain help.
1. When the center deviation diameter of the local anchor bolt is less than 30mm and the center line is within 30mm, the bolt can be burnt red with oxyacetylene, and then bend the bolt with a sledgehammer or bend with a jack to correct the steel plate and prevent the bolt from recovering. . If the bolt spacing is not correct, you can use an oxyacetylene flame to bake the red color, then bend with a sledgehammer, weld the steel plate in the middle, and then pour it into the subsequent grouting. For large bolts with a diameter exceeding 30mm, the anchor bolts should be cut first, and the middle of the bolts should be welded with a steel plate. If the bolt is not strong enough, two reinforcing steel plates can be welded on both sides of the bolt. The length shall not be less than 3 to 4 times the diameter of the bolt.
　　 2. Treatment of the elevation deviation of anchor bolts 1. When the bolts are too high, the higher part must be divided and threaded. When threading, it is necessary to prevent oily substances from dripping onto the concrete foundation to corrode and affect the quality of the foundation. 2. When the anchor bolt is low and the deviation value is not large, it is within 15mm, and the bolt can be baked red with oxyacetylene and then stretched. The method of elongation is to use two stacks of pads as a support, and then a steel plate with a hole in the middle is placed on the anchor bolt, and the nut is tightened on it. With the help of the tightening nut, the red part of the bolt is elongated. . The thinned part of the bolt diameter must be reinforced by welding 2~3 steel plates. If the equipment is already placed on the foundation and it is inconvenient to move, if the flange of the machine base is strong enough, you can directly tighten the nuts on the base to elongate the bolts. When screwed to an appropriate length, the nut must be loosened to avoid excessive tension after the bolt cools, or even fracture the flange of the base. If the bolt is too low and 15mm lower than its required height, and cannot be stretched by heating method, a deep hole can be dug around the bolt, and the bolt can be cut at a distance of about 100mm from the bottom of the pit. Requirements, and then reinforced with round steel. The length of the reinforced round bar is generally 4 to 5 times the bolt diameter.
　　 3. When the anchor bolts are tightened, the anchor bolts in the foundation may loosen when they are loose. In this case, the bolt should be adjusted to the original position, and the foundation around the bolt should be scooped out, and then welded on the bolt. Two U-shaped steel bars longitudinally and transversely. Finally, the anchor bolt pits are cleaned and grouted, and the concrete is cured to the design strength before tightening the nuts.
　　 Fourth, the treatment of the deviation of the live bolt, except that the anchor bolt can be pulled out, the method of dealing with the deviation of the live bolt is roughly the same as that of the anchor bolt. If the bolt is too long, you can cut a thread on the machine; if the bolt is too short, you can extend it by hot forging; if the position is inconsistent, you can correct it by bending.
　　 The above are the four methods to deal with the deviation of anchor bolts in the use of anchor bolts based on the four points learned by the weigao China Nut manufacturer. I hope that I can help you in your future infrastructure career.