1, fixed foot bolt is also known as short foot bolt, it is poured with the foundation, used to fix the equipment without strong vibration and shock.
2, activity foot bolt is also known as long foot bolt, is a removable foot bolt, used to fix the work of strong vibration and shock of heavy machinery and equipment.
3, expansion anchor anchor bolt is often used to fix the static simple equipment or auxiliary equipment. Expansion anchor bolt installation should meet the following requirements: bolt center to the edge of the foundation distance is not less than 7 times the diameter of the expansion anchor bolt; installation of expansion anchor bolt foundation strength shall not be less than 10MPa; drilling holes shall not be cracked, pay attention to preventing the drill bit and the foundation of the rebar, the buried pipe collision; drilling diameter and depth should be matched with the expansion anchor bolt.
4, bonding anchor bolts for the last few years a commonly used anchor bolts, its methods and requirements with the expansion anchor anchor bolts. But when bonding, pay attention to the hole debris blowing clean, and shall not be affected by moisture.