Post-Tension in Concrete

Definition: method of prestressing reinforced concrete in which tendons are tensioned after the concrete has attained a specified minimum strength or a specified minimum age.- ACI Concrete Terminology


Post-tensioning is a method of reinforcing (strengthening) concrete or other materials with high-strength steel strands or bars, typically referred to as tendons. The materials used to post-tension concrete members are ultra-high-strength steel strands and bars. Horizontal applications (such as beams, slabs, bridges, and foundations) typically employ strands. Walls, columns, and other vertical applications usually use bars. The steel reinforcing strands are installed in a way that protects them from bonding with the concrete. Slabs and girder sections are the most common post-tensioned member found in buildings and parking structures.

Practice oriented papers and articles ON POST-TENSION IN CONCRETE

Minimizing the Risk for Portland-Limestone Cement Concrete Slabs

Publication: Concrete International
Date: 1/1/2024

Riverworks at Eastern Wharf Fire Repair

Publication: Concrete International
Date: 9/29/2023

Active Confinement of RC Columns with External Post-tensioned Clamps

Publication: Special Publication
Date: 9/1/2023

Review of Key Parameters Affecting Punching Shear Strength of Post-Tensioned Slabs

Publication: Special Publication
Date: 4/1/2023

Tech Spotlight: Understanding Structural Thermal Breaks

Publication: Concrete International
Date: 2/1/2023

Effect of Prestressing Ratio on Concrete-Filled FRP Rectangular Tube Beams Tested in Flexure

Publication: Special Publication
Date: 10/1/2022

High-Performance Concrete Flat-Plate Floor System

Publication: Concrete International
Date: 1/1/2022

Designing for Construction Productivity and Safety

Publication: Concrete International
Date: 6/1/2021

Torsion Design Example: Prestressed Concrete Girder Bridge

Publication: Special Publication
Date: 10/1/2020

Design of Variable Depth Single-Span Post-Tensioned Concrete Bridges

Publication: Concrete International
Date: 10/1/2020

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