Control principle and role of anchor bolts
How to control the accuracy of anchor bolts? What does the anchor bolt do? Let ’s take a look at the control principle and role of anchor bolts together.
Control principle of anchor bolt
An anchor bolt is characterized in that an adjusting sleeve is provided between a portion of the anchor bolt higher than the foundation and the bottom hole of the equipment. An upper end is provided with an adjusting cap, and the buried portion of the foundation bolt is covered with an anchor sleeve. It consists of upper and lower support blocks, casings, and tendons. The lower end of the adjusting sleeve and the root of the anchor bolt are respectively connected with the upper and lower supporting blocks. The utility model eliminates the oblique iron when adjusting the level of the equipment, and the adjustment is rapid and convenient. The stress state of the anchor bolt is improved. The replacement of the anchor bolt is convenient, and it is especially suitable for the installation and use of large equipment.
The inner diameter of the hole on the surface of the slot steel plate is only 1mm larger than the outer diameter of the design anchor bolt, and its center is consistent with the design. When the anchor bolt is placed in it, the maximum displacement deviation of each bolt can be 0.5mm, any two The maximum displacement deviation that bolts can produce is 1mm, so that it can ensure that the center displacement between any bolts in the same bolt group reaches the construction pre-control target ≤1mm. Because the precision control of the special fixture itself is better, as long as the independent bracket for the special fixture is accurate through the total station, the accuracy of the anchor bolts inserted into the fixture can be controlled within the design range.
Anchor bolts are widely used in large construction industries, and were then introduced and manufactured by China's anchor bolts. If the bolt diameter is large (such as 45mm) and the buried depth is too deep, you can weld a square plate at the end of the bolt, that is, make a large head (but there are certain requirements). The burial depth and the hook are to ensure the friction between the bolt and the foundation, so that the bolt will not be pulled out and damaged.
The role of anchor bolts
Fixed anchor bolts are also called short anchor bolts, which are poured with the foundation to fix the equipment without strong vibration and impact.
Movable anchor bolts, also known as long anchor bolts, are a type of removable anchor bolts used to fix heavy machinery and equipment with strong vibration and impact.
Anchor anchor bolts are often used to fix simple or auxiliary equipment that is standing still. The installation of expansion anchor anchor bolts should meet the following requirements: the distance from the center of the bolt to the edge of the foundation is not less than 7 times the diameter of the expansion anchor anchor bolts; the foundation strength of the installation anchor bolts must not be less than 10 MPa; there must be no cracks in the drilled holes. The drill bit collided with the reinforcement and buried pipe in the foundation; the diameter and depth of the drilled hole should match the anchor bolts. Bonded anchor bolts are a commonly used anchor bolt in recent years. The methods and requirements for anchor bolts are the same. But when bonding, pay attention to blow off the debris in the hole and do not get wet.
The above is an introduction to the control principle and function of anchor bolts. I hope everyone will understand the control principle and function of anchor bolts and help you.
