Strengthening with Post-Tensioning
Post-Tensioning: Enhancing Structural Load Capacity and Performance
Post-tensioning consists of high-strength steel reinforcement that connects to the structure at the anchor points. Ideal for enhancing load capacity, addressing deflection issues, and preventing excessive cracking, these systems offer tailored levels of capacity and serviceability improvement.

Solution Use Cases
Our customizable strengthening solutions can be used for these various requirements.

External Post-Tensioning
Tendons are installed outside the structural element but may be placed in grouted ducts to improve durability and/or fire resistance.

Internal Post-Tensioning
Installed within a Tstrata Enlargement System or may be installed into an existing member through core drilling or other methods. These systems utilize the structural element itself, or the new enlargement, to provide required durability and fire protection.
Post-Tensioning Products & Systems
Tstrata is the exclusive manufacturer of VSL post-tensioning and construction systems in the United States. VSL systems have a well-earned reputation for their quality, reliability, and durability – and have been used throughout the world since 1956 to build, repair, and strengthen buildings, tanks, bridges, and special structures.
The manufacturing facilities in the United States are certified by PTI’s Plant Certification Program to ensure the highest quality fabrication of materials.

Monostrand Systems
We offer a variety of anchorages and custom-made post-tensioning components that can be utilized for a wide range of strength and protection requirements.

Multistrand Systems
Our multistrand systems and anchors can be designed to hold up to 55 strands encased in duct. The duct may be grouted for additional protection.

VStrand™ Heat Resistant Tendon
Our innovative heat-resistant tendons have been developed to mitigate the detrimental effects of fire on the strength of the prestressing steel.

Threaded Bars
Threaded bar systems are high-tensile steel bars that can be used for post-tensioning and strengthening applications.
Featured Projects
Design & Engineering Support
Tstrata’s staff of engineers, technical support, and field installation specialists integrate with engineers, architects, designers, and contractors to provide a diverse range of design support services for our products and technologies.
Design-Assist & Engineered Product Support
Product Installation Support
We provide technical support to our repair and maintenance companies, as well as other contractors in the field. Our installation support services include:
Get the Right Strengthening Solution
Tell us about your structure & we’ll help determine the right strengthening approach.
