Post Tensioning
Applications
Additional Post-Tensioning & Strengthening
Additional Post-Tensioning is an active strengthening method consisting of introducing forces that oppose the permanent and/or live loads. This technique can be applied in most cases in highly congested areas and is the only technique that can be used to relieve over-stressed structures. This application is extremely cost effective for large structural members and for heavy alterations such as transfer girders which are required when columns are being removed in a structure. They can be applied to virtually any structure and any material such as concrete, steel, or timber. As shown in the photos below, Additional PT can be installed in congested areas, under operation with minimal disruption, dust or noise. It can be successfully implemented to all sorts of structures including industrial, buildings, and bridges.
Bridge Post-Tensioning
Barrier Cable Systems, Inc has been active on the small bridge market for the last 15 years, especially when it comes to Precast Box or Hollow Core deck sections transversally post-tensioned with 150 Ksi PT Bars. We can assist in designing, supply, and install bridge post-tensioning systems using mono-strand, multi-strand or 150 Ksi bar based tendon systems for small and medium bridges or buildings.
Circular Structures, Large Diameter Pipes and Silos
Post-Tensioning is extremely effective in strengthening circular structures (tanks, silos and pipelines) that require additional strength due to deterioration or change of use. Cables applied externally induce compression in the cylinder walls that impede cracking from its deterioration or to allow for a higher pressure or denser contents.
Post-Tensioning is extremely effective in strengthening circular structures (tanks, silos and pipelines) that require additional strength due to deterioration or change of use. Precast Prestressed pipes (PCCP) are very common in the water transportation networks for their ability to handle high volumes at very high pressures. When corrosion damages the prestressing wires to the point of failures, local strength may be lost resulting in a violent burst.
Cables applied externally induce compression in the cylinder walls that impede cracking from the prestress wire loss or to allow for a higher pressure or denser contents. Our staff has a long experience providing such external strengthening systems and will be happy to assist at any stage of the project.
