Overview
STRUCTURAL TECHNOLOGIES manufactures and designs post-tensioning systems to increase or restore the load-carrying capacity of various structures. Bonded multistrand post-tensioning systems are widely used in bridge and transportation infrastructure, as well as commercial building construction.
Each multistrand tendon can accommodate up to fifty-five 0.5” or 0.6” strands encased in PT-Plus™ plastic or steel ducts, fully bonded using high-performance grout. This system is particularly effective for large structural members, offering enhanced span lengths, increased load-carrying capacity, and reduced deflection
STRUCTURAL TECHNOLOGIES is the exclusive manufacturer of VSL post-tensioning products and construction systems in the United States. Our manufacturing facilities in the United States are certified by PTI’s Plant Certification Program to ensure the highest quality fabrication of materials.
Multistrand Anchorages
Multistrand systems are tailored to meet diverse project specifications, including:
Sheathing & Corrosion Protection
Our PT-PLUS™ duct system features corrugated plastic ducts and couplers designed for easy installation and provide positive sealed mechanical connections for increased durability. Advantages of the PT-PLUS™ system include:
Installation Support
STRUCTURAL TECHNOLOGIES provides expert installation services in all aspects of post-tensioning, including stressing and grouting operations. Our field leadership, certified by the Post-Tensioning Institute (PTI) and the American Segmental Bridge Institute (ASBI), ensures top-quality installation. They offer on-site training, supervision, and installation services, guaranteeing meticulous stressing and grouting procedures. Our installation equipment is meticulously maintained and calibrated by skilled mechanics before delivery to the jobsite.
How Stressing Works
VSL Bonded Multistrand Products
Post Tensioning: Anchorages
| Product | Description | Technical Data |
|---|---|---|
| ECI | For 7, 12, or 19 strands | |
| K | Multistrand Coupler | |
| AF | Dead-End Anchorage for limited access | |
| N | Anchorage |
Post Tensioning: Ducts
| Product | Description | Technical Data |
|---|---|---|
| PT-PLUS™ | Proprietary plastic duct and coupler system |
Post Tensioning: Strand Properties
| Product | Description | Technical Data |
|---|---|---|
| Strand | Post-tensioning strand and tendon properties |
Post Tensioning: Equipment
| Product | Description | Technical Data |
|---|---|---|
| Stressing Equipment | Block out dimensions, clearance requirements, and stressing jack data |
Post-Tensioning Engineering Support
STRUCTURAL TECHNOLOGIES’ post-tensioning specialists are committed to bringing innovation to complex projects. Our in-house design professionals have extensive experience in structural design and are active members of technical organizations such as the Post Tensioning Institute (PTI) and the American Concrete Institute (ACI).
Planning
Design
