Tendon Systems delivers quality, service and value nationwide, specializing in cast-in-place post-tensioned concrete structures.
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This includes high rise, multi-family, parking garages, hotels, offices and condominiums. Supported with in-house engineering design support, Tendon Systems can provide its Clients responsive design and budgeting input at an early stage of project development.
Tendon Systems&#; Unbonded Monostrand System utilizes the latest extrusion technology to produce unbonded tendons with a uniform coating of abrasion resistant, high density polyethylene sheathing over a low friction, corrosion inhibiting lubricant. All unbonded post tension tendons are fabricated according to the governing ASTM and PTI Standards in our PTI Certified Plant.
Fabricated tendons are tagged, bundled and delivered by construction sequence for ease of field placement.
Tendon Systems&#; encapsulated system is designed for aggressive corrosive environments such as coastal areas and parking garages exposed to de-icing salts. The encapsulated system comprises plastic coated anchorages, 60 mil plastic sheathing and positive locking connection tubes and end caps ensuring complete isolation of the wedge cavity and strand from corrosive elements.
Stressing Equipment is serviced and calibrated prior to delivery to the jobsite. Technical Field Service Representatives provide our Clients with on-site assistance for Tendon Systems installation, stressing and construction sequencing.
For turn-key packages, Tendon system offers a cost effective labor force to provide complete installation services for all post-tensioning, ShearailsTM and rebar materials.
LEARN MOREPOST TENSIONING is a concrete reinforcement technique. Post tensioning tendons which provides pre-tensioning of steel ropes inside the plastic channels or couplers are placed in the forms before placing the concrete. After the concrete is strengthened, the ropes are swiftly pulled or stretched before applying the service loads and leaned against the outer edges of the concrete.
Contact us to discuss your requirements of post tensioning system services. Our experienced sales team can help you identify the options that best suit your needs.
The initial pressure simply means that the steel is stretched (pulled or stretched) before the concrete supports the service loads. Prestressed precast is actually pulled before the prestressed steel concrete is casted. Post-stressed concrete means that the concrete is casted and then stressed; however, it is still stretched before the loads are applied and stretching continues.
Stretching elements of stretching method consist of rope bundles with high breaking strength. With variations of number of ropes and if needed, variations of rope diameters and quality of the steel, it is possible to obtain a great diversity as rope units with breaking strength between 160 &#; 16.000 kN in standard units. Larger ropes can be manufactured for special applications.
After stretching, the cables are wedged in an anchor which allows the tensile force to be transferred to the structure. The basis of the post tension method is type anchors.
Tensioning Anchors:
Post Tension-type tensioning anchors help to anchor and stretch the ropes. These are designed according to the principle of anchoring each rope individually by means of compressors.
The prestressing force is transferred to concrete by a rigid anchor plate. The spirals surround too much concrete in the zone behind the anchor plate. The tensile forces in the anchor zone should be met with an additional soft reinforcement. The reinforcement is determined by considering the shape and dimensions of the anchor plate as well as the dimensions of the end region. Stretching anchors can also be used as fixed anchors. In this case, the anchor head must remain stable during the tensioning process.
For more information, please visit post tensioning system supplier.