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POST-TENSIONING INSTITUTE

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Established in 1976, the Post-Tensioning Institute (PTI) is recognized as the world-wide authority on post-tensioning. PTI is dedicated to expanding post-tensioning applications through marketing, education, research, teamwork, and code development while advancing the quality, safety, efficiency, profitability, and use of post-tensioning systems.

Members of the Institute include major post-tensioning materials fabricators, manufacturers of prestressing materials, and companies supplying materials, services and equipment used in post-tensioned construction. In addition, PTI has more than 500 professional engineers, architects and contractors.

PUBLICATIONS

One of PTIís principal functions is to provide technical guidance on the design, construction, maintenance and repair/rehabilitation of post-tensioned concrete structures. PTI has published many state-of-the-art consensus documents such as specifications, manuals and technical guides covering most aspects of post-tensioning. In addition, PTI publishes newsletters, Technical Notes, Frequently Asked Questions, and Technical Updates which give an in-depth discussion and/or analysis of issues pertinent to designers and other users in the post-tensioning field.

CERTIFICATION

One of the goals of the Institute is to ensure that specifiers and purchasers of post-tensioning materials receive products and services which meet a recognized standard of quality. PTI has established certification programs both for manufacturing plants and for field personnel. Current programs include:

Plants:
  • Plants Producing Unbonded Tendons
  • Plants Producing Prestressed Concrete (PC) Strand
Field Personnel:
  • Level 1 Unbonded PT Ė Field Installation
  • Level 1&2 Unbonded PT Inspector
  • Level 1&2 Unbonded PT Ironworker (Accelerated)
  • Slab-on-Ground Installer Ė Stressor
  • Level 1&2 Bonded PT Field Specialist

These certification programs are specified in many standard codes and specifications, including the International Building Code, and the American Concrete Instituteís Specifications for Structural Concrete (301) and Specification for Unbonded Single-Strand Tendon Materials (423.7).

EDUCATION

PTI sponsors technical sessions at the annual Convention and education seminars for design and construction professionals. PTI's Education Committee has developed prototype college curriculums that can be used to teach post-tensioning technology to engineers and architects.

COMMITTEES

PTI has 15 technical committees, including: Bonded Tendon; Grouting; Bridges; Cable-Stayed Bridges; Unbonded Tendon; Building Design, Repair, Rehabilitation and Strengthening; Slab-on-Ground; Sustainability; Building Information Modeling (BIM), Rock & Soil Anchors; Special Topics; Education; and Professional Member. The Technical Advisory Board reviews and oversees all technical activities of the Institute.

PTI also has 7 certification committees, including: Bonded PT Field Personnel; Unbonded PT Field Personnel; Repair, Rehabilitation and Strengthening Field Personnel; Slab-on-Ground Geotechnical Engineers; Unbonded Tendon Plant; and PC Strand Plant . The Certification Advisory Board reviews and oversees all certification activities of PTI.

PTI committees are open to all members and are instrumental in providing guidance to producers and users of post-tensioning including design practitioners, specifiers, inspectors and others; and in advancing industry practices.

RESEARCH

PTI sponsors research to improve industry practices and to advance the state-of-art. Although historically a small part of PTIís programs, research is a growing and increasingly significant function. For example, PTIís sponsored research on slab-on-ground foundations lead to a new design procedure that is now the standard across the country.

MARKETING

PTI is committed to increasing the use of post-tensioning in a variety of construction and repair applications. PTIís Marketing Committee has developed a plan to increase usage in existing construction markets and to develop new markets such as post-tensioned pavements and bridge decks.

ANTITRUST COMPLIANCE

A free exchange of idea on matters of mutual interest to the members is necessary for the success of all meetings. Indeed, such an exchange of views is essential to the successful operation of every trade association. However, certain areas of communication between competitors or between manufacturers and their suppliers and customers must be avoided, as posing potential antitrust problems.

PTI is committed to ensuring that its members comply with all applicable antitrust laws and regulations. To this end, PTI has adopted a Policy Statement on Compliance with Antitrust Laws that sets forth guidance for members in conjunction with all activities within the scope of, and related to, the official functions of PTI. Click here to view the latest Antitrust Policy Statement.

 

 

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