About Careers Contact Us Shop t’pot™ COMMERCIAL & PUBLIC WATER & WASTEWATER TRANSPORTATION INDUSTRIAL POWER Bonded Multistrand Post-Tensioning Bonded Multistrand Post-Tensioning Systems Bonded Multistrand Post-Tensioning Systems Extensively used in bridge and transportation structures, bonded multistrand post-tensioning systems have also been successfully applied to commercial building construction. A single multistrand tendon can hold up to fifty-five 0.5″ or 0.6″ strands encased in PT-Plus™ plastic or steel duct and is fully bonded using a high-performance grout. When bonded multistrand post-tensioning systems are used for large structural members, such as beams and transfer girders, design advantages include increased span lengths and load-carrying capacity and reduced deflection. Additionally, because the strands are stressed simultaneously, less labor is required resulting in cost savings. 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 Our multistrand systems are tailored to meet a variety of unique project specifications, including: Encapsulated for optimum corrosion protection Couplers to connect tendons that are already installed Inspectable for post-grouting inspection Electrically Isolated to eliminate corrosion or monitor tendon integrity Loops where there is no access to the dead-end Sheathing & Corrosion Protection PT-PLUS™ is our proprietary duct system, utilizing corrugated plastic duct and couplers that are designed for easy installation and provide positive sealed mechanical connections for increased durability. Advantages of the PT-PLUS™ system include: Enhanced corrosion protection Improved tendon fatigue resistance Reduced sensitivity to stray electric currents Reduced tendon friction Electrical isolation when used with special anchorages Airtight / Watertight Installation Support Our highly trained field leadership provides expertise in all areas of post-tensioning installation services– including stressing and grouting operations. Our technicians are certified by the Post-Tensioning Institute (PTI) and American Segmental Bridge Institute (ASBI) for quality installation. They are also available to provide on-site training and supervision or to install systems and perform stressing and grouting services as needed. We also provide installation equipment that is expertly maintained and calibrated by skilled mechanics prior to jobsite delivery. How Can We Assist You? Contact Call More How Stressing Works The unique feature of our P-T system is its special wedge locking procedure. The wedges always remain in contact with the strands during the stressing operation. As the pressure in the jack is released, the wedges automatically seat into the conical holes of the anchor head. 1) Placing of anchor head and wedges 2) Positioning of jack 3) Stressing 4) Seating of wedges VSL Bonded Multistrand Products Post Tensioning: Anchorages Product Description Technical Data ECI For 7, 12, or 19 strands PDF ES For 22 or 37 strands PDF K Multistrand Coupler PDF Z Intermediate Anchorage PDF L Dead-End Loop Anchorage PDF AF Dead-End Anchorage for limited access PDF N Anchorage PDF Post Tensioning: Ducts Product Description Technical Data PT-PLUS™ Proprietary plastic duct and coupler system PDF Post Tensioning: Strand Properties Product Description Technical Data Strand Post-tensioning strand and tendon properties PDF Post Tensioning: Equipment Product Description Technical Data Stressing Equipment Block out dimensions, clearance requirements, and stressing jack data PDF Post-Tensioning Engineering Support Post-Tensioning Expertise 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). Post-Tensioning Team Leader Read more about our products and applications on our post-tensioning solution builder page Design-Assist & Engineered Product Support • Investigation Support • Solution Development • Budget Development • Specification Assistance • Constructability Consulting • Application Engineering • Quality Control Programs • Project-Specific Design-Assist Planning Planning • Preliminary Designs • Feasibility Studies • Budget Development • Optimization of Structural Geometry • Specification Development Design Design • P-T System Selection • Customized P-T System Design • P-T Element Design & Detailing Support • Integrated Shop Drawings & Building Information Modeling (BIM) • Quality Control Plan Development Construction Construction • P-T System Installation Support • Project Coordination • Manufacturing & Material Supply • Equipment Rental • Safety Planning Company Contact Us About Careers Locations Markets Commercial & Public Water & Wastewater Transportation Industrial Power Resources Solution Builders Case Studies Continuing Education Events SHOP Privacy Policy Terms of Use © Copyright 2021 Structural Group Inc. | EOE/M/F/D/V