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Classification Of Anchor Bolts For Buildings

The anchor bolt is the anchoring component which will be bolted to the hardened concrete base, and is divided into 3 types according to its working principle and structure: expansion anchor Bolt, reaming type anchor bolt and bonding type anchor bolt.

The expansion anchor Bolt is the relative displacement of the expansion cone and the sleeve, the expansion of the sleeve is caused by the expansion and extrusion pressure of the concrete hole wall, the tensile force is produced by shearing friction, the anchoring of the fixing piece is realized, and the different expansion type of the expanded anchor Bolt is divided into: Torque control type and displacement control type.

The reaming type anchor bolt is the mechanical interlock between the concrete inclined hole formed by reaming and the bolt expansion cone through the reaming of the bottom concrete of the drilling hole. To achieve the anchoring of the structure fixed parts, the production of the Anchorage force of the reaming type anchor bolt is mainly the direct pressure between the expansion cone and the concrete cone hole, not only the indirect expansion friction, therefore, the swelling squeeze pressure is smaller.

Bonding Anchor Bolt is a special chemical binder (anchoring glue), the screw and the internal thread pipe cementation fixed in the concrete base material drilling, through the binder and the anchor Bolt and the bonding agent and the concrete hole wall between the bonding and locking effect, to achieve the anchoring of the fixed parts.


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