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What is the purpose and work flow of the anchor bolts?

Update:08-11-2021
Summary:

1. Purpose: 1. The fixed anchor bolts are also called s […]

1. Purpose:
1. The fixed anchor bolts are also called short anchor bolts, which are poured together with the foundation to fix equipment without obvious vibration and impact.
2. Movable anchor bolts are also called long anchor bolts. They are detachable anchor bolts used to fix heavy machinery and equipment with obvious vibration and impact.
3. Expansion anchor bolts are usually used as simple equipment or auxiliary equipment for fixing and standing. The installation of expansion anchor anchor bolts should meet the following requirements: the distance from the bolt center to the edge of the foundation should not be less than 7 times the diameter of the expansion anchor anchor bolt; the foundation strength of the installation expansion anchor anchor bolt should not be less than 10MPa; there should be no cracks at the drilled hole, and pay attention to prevent it The drill bit collides with the steel bars and buried pipes in the foundation; the diameter and depth of the drill hole should match the expansion anchor bolts.
4. Adhesive anchor bolt is a kind of anchor bolt commonly used in recent years, and its method and requirements are the same as that of anchor anchor bolt. But pay attention to blowing out the sundries in the hole when bonding, and not get damp.

2. Work flow:
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 for compaction. . The distance from the center of the anchor bolt to the edge of the foundation should not be less than 2d (d is the diameter of the anchor bolt), and should not be less than 15mm (when d≤20, it should not be less than 10mm), and it should not be 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.
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