Telescopic rack is the main support element of the formwork and is used in the construction of reinforced concrete monolithic slabs. Works can be carried out at a wide temperature range and at a height of up to 4.5 meters. The device is designed for concreting various floors, including inclined, straight, supplemented with capitals and reinforced concrete beams. Most often, the telescopic pole is used in the construction of residential buildings.
The connecting frame and foldable tripod allow the system to be set up and brought to a vertical position. For laying timber and beams, various uniforks are used. All these components provide safety during construction and simplify work.
Telescopic poles: characteristics
These supporting elements allow the formwork of various types of slabs, such as round, cantilever and rectangular. At the same time, notthere is a need for special units, since all work is carried out using a standard set of components. The ceilings being erected can have a height of up to 5 meters, but it is still recommended not to exceed the parameter 4-4.5 meters.
It is worth noting the main characteristics that the telescopic stand has:
- The thread on the tensioner is made from high-quality material by plastic deformation. This technique prevents the loss of strength that is typical for threaded threads. As a result, the life of the tensioner is extended.
- The rack is cost-effective, which is especially noticeable in residential construction.
- Presence of anti-corrosion coating.
- Installing the structure to the required height is done using the simplest and most convenient adjustment system.
- Light weight of the telescopic rack, which directly depends on the height of the structure. For example, a device with a height of 3.1 m weighs about 11 kg, and with a height of 4.5 m, the weight reaches 15 kg.
Features
Today, monolithic buildings with a ceiling height of more than 4.5 meters are being erected more and more often. In this regard, there is a need for high-quality equipment for creating formwork. As an alternative, a framed formwork system is used, the design of which consists of a list of interconnected parts.
The telescopic pole can have different heights, which vary by moving the inner tube,supplemented with a hole with fixation in the form of a lock. Reaching the required level is possible due to the movement of the external threaded sleeve. The design made it possible to evenly distribute the resulting loads.
Design
The constituent elements of the racks are represented by the following details:
- wedge assembly required for tight fixation of horizontal and vertical elements;
- horizontal parts: braces and girders that connect the main parts of the structure;
- vertical elements: jacks and posts that carry the load of the formwork table.
Thanks to the connection of all parts, there is no chance of exceeding the load on individual elements, since the weight is distributed evenly throughout the fixture. This provides reliability and resistance to point high loads.
The wedge assembly is formed in such a way that in the presence of a load that significantly exceeds the set load, the load-bearing parts of the structure are deformed, and the probability of system failure is noticeably reduced. Thanks to this, it is possible to prevent the avalanche destruction of the formwork, in which some destroyed elements pull the neighboring ones along with them, by detecting and restoring the damaged node. At the same time, telescopic props for floor formwork can be quickly adapted to existing operating conditions.
Benefits
Convenience and ease of installation are achieved thanks tothe presence of the following characteristics:
- use of large compound elements;
- quick fixation of wedge knot;
- few details.
Long service life, load resistance, quick and easy installation, relatively low cost of structures can reduce the cost of concreting and speed up the work.
