The Post-Tensioning Institute (PTI) is an American

nonprofit organization A nonprofit organization (NPO), also known as a nonbusiness entity, nonprofit institution, not-for-profit organization, or simply a nonprofit, is a non-governmental (private) legal entity organized and operated for a collective, public, or so ...

committed to advancing the quality, safety, efficiency, profitability, and use of post-tensioning systems. PTI's manuals and technical guides are designed to provide guidance on the design, construction, maintenance, and repair/rehabilitation of post-tensioned concrete structures. In addition , PTI aims to ensure that specifiers and purchasers of post-tensioning materials receive best products and services that meet a standard of quality through its plant and field personnel certification programs. Members of the Institute include major post-tensioning companies, as well as more than 500 professional members,

engineer Engineers, as practitioners of engineering, are professionals who Invention, invent, design, build, maintain and test machines, complex systems, structures, gadgets and materials. They aim to fulfill functional objectives and requirements while ...

architect An architect is a person who plans, designs, and oversees the construction of buildings. To practice architecture means to provide services in connection with the design of buildings and the space within the site surrounding the buildings that h ...

s, and contractors from around the globe.

History

PTI was founded in {{start date and age, 1976, p=y. Members of the Institute include major post-tensioning materials fabricators. Material manufacturers for prestressing, and companies supplying materials, services, and equipment used in post-tensioned construction. Additionally, members include professional engineers, architects and contractors.

Technical committees

The Technical Advisory Board reviews and oversees all technical activities of the Institute, including education and certification. * Barrier Cable * Bonded Tendon *

Bridge A bridge is a structure built to Span (engineering), span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the path underneath. It is constructed for the purpose of providing passage over the obstacle, whi ...

s *

Building Design Building design, also called architectural design, refers to the broadly based architectural, engineering and technical applications to the design of buildings. All building projects require the services of a building designer, typically a licen ...

Cable-Stayed Bridges A cable-stayed bridge has one or more ''towers'' (or ''pylons''), from which cables support the bridge deck. A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fan-like pattern o ...

* Grouting * Rock and Soil Anchors * Repair, Rehabilitation, and Strengthening * Slab-on-Ground * Unbonded Tendon

References

*
Post-Tensioning Institute website
, Post-Tensioning Institute. Trade associations based in the United States