•  EN 
  •  فـا
  • وستادژ نگاهی نو به دنیای تاسیسات

Anchorage system

 

An anchor bolt is a device used to attach any foreign object to concrete. There are different types of anchor bolts and the designs of each one are different and specific according to their manufacturer. Anchor bolts have a threaded head that can be installed with washers and nuts. Anchor bolts can be used for a variety of applications, from conventional buildings to dams and nuclear power plants.

Anchor bolts can also be used to fasten steel columns to a concrete foundation. For example, when you want to install factory machines, depending on the size of the machines and the amount of vibration, anchor bolts are planted in the foundation and the machines are closed to them. However, at the time of reinforcement and before concreting, if the location of the anchor bolts is predicted, they can be placed.

Structural applications:

  • In the installation of metal plates on concrete or other building materials in order to perform welding operations on the plate and add a new piece on the plate is installed: for example, covering an opening using IPE sections and creating a new roof in the openings of concrete structures it was made. (Bolt implantation)
  • In strengthening and repairing concrete structures such as connecting two pieces of strip foundation in an old structure to increase the foundation surface (reinforcement planting)
  • Continuation of structural operations in a concrete structure where there are no waiting reinforcements to overlap with subsequent reinforcements. For example, covering an opening in an old concrete structure with the method of concrete slab (reinforcement planting)

 

Non-structural applications:

In installing electrical and mechanical supports on the concrete body

In the installation of handrails and guardrails

In the installation of light equipment bases on the floor, wall or ceiling such as CCTV cameras, speed cameras

Types of anchor bolts:

1. Anchor chemical bolts

Chemical anchor is a general term used to refer to bolts or rods that are inserted into concrete or masonry layers using resin-based chemicals. These anchors are used for heavy loads and in almost all cases, the connection obtained is stronger than the main material itself. The advantage of using this type of anchors is that there is no restriction on the diameter and depth of planting. Also, due to the fact that the system is based on chemical adhesives, no additional stress is applied to the base material compared to mechanical anchors. Their quality is not clear or their compressive strength is low, it makes them more than before.

In chemical plantings, the steel element that is embedded in concrete or so-called can be reinforcement, all-thread rod or bolt. The placement of residual or displaced reinforcement in the foundation is of the type of chemical planting with structural performance. Although there are different types of anchors on the market, but all systems have the same basis and their components are a resin as a base material and a material. The other thing that causes it to get stuck.

2. Mechanical anchor bolts (roll bolts):

Mechanical bolt anchors are actually a group of anchors that are planted mechanically in a hole created in the base material. In mechanical planting, due to the mechanism of action of this type of anchor, which is frictional, the implantable element must have a wedge or impeller engaged due to torsional pressure. Placing some metal elements in concrete to install installation support or hangers or creating risers are mainly mechanical anchors with installation function. Anchor components of mechanical bolts include a screw with a conical head, a cylindrical piece, nuts and washers is.