Post Tensioning System

Post Tensioning System
Product Description
Prestressing force is the compressive stress applied to a structure in advance
during construction in order to improve the service performance of the
structure.
Prestressing force is the compressive stress applied to a structure in advance
during construction in order to improve the service performance of the
structure. Pre-added compressive stress during the service period of the
structure can fully or partially offset the tensile stress caused by the load,
avoiding the destruction of the structure, and is commonly used in concrete
structures.
The Concept of Prestressing Force
1. Prestressing force is the stress applied to the member before loading;
2. Prestressing force makes full use of the compressive strength and tensile
strength of the material, and can improve the crack resistance of concrete, but
will not improve the load carrying capacity of the member;
4. The inverted arch of the member caused by prestressing can offset the
deflection of the constant load, but it has almost no effect on the deformation
caused by variable loads;
5. prestressing is an internal force in the member, which does not destabilize
the member, but rather improves the stability of the member. For example,
prestressing can be applied to precast piles to improve the stability of the
piles during transportation and pile driving;
A prestressing system usually consists of several components, including anchor,
wedge, strand, and bellows.

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