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    Foundation bolts installation method

    2020-06-27

    1. One-time burying method: When pouring concrete, bury the anchor bolts. When high towers are controlled by overturning, the anchor bolts should be embedded in one step.

    2. Reserved hole method: the equipment is in place, the holes are cleaned, the anchor bolts are put into the holes, and the equipment is positioned and corrected, and then poured with non-shrinkage fine stone concrete one level higher than the original foundation, and tamped tightly . The distance from the center of the anchor bolt to the edge of the foundation should not be less than 4d (d is the diameter of the anchor bolt), and should not be less than 150mm (when d≤20, it should not be less than 100mm), and not less than half of the width of the anchor plate Add 50mm. When the above requirements cannot be met, appropriate measures should be taken to strengthen it. The diameter of the anchor bolts used for the structure should not be less than 20mm. When subjected to earthquakes, double nuts should be used for fixing, or other effective measures to prevent loosening should be adopted, but the anchoring length of the anchor bolts should be 5d longer than the non-seismic anchoring length.

    Anchor bolt installation planning. Treatment of loosening of anchor bolts in the foundation. When the anchor bolts are tightened, the bolts may be pulled out. At this time, the bolts should be adjusted to the original position and the foundation around the bolts should be shoveled out enough. , And then weld two U-shaped steel bars in the vertical and horizontal directions on the bolts. Finally, clean the pit with water and grouting. After the concrete has solidified to the design strength, tighten the live anchor bolts to deal with the deviation of the live anchor bolts. The method of the anchor bolt is the same, except that the anchor bolt can be pulled out for processing. If the bolt is too long, it can be cut off on the machine tool and threaded; if the bolt is too short, it can be extended by hot forging; if the position is not consistent, it can be corrected by bending.  

    Application industry: suitable for various equipment fixation, steel structure foundation embedded parts, street lights, traffic signs, pumps, boiler installation, heavy equipment embedded fixation, etc.  

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