American Society of Civil Engineers

Load Factor Resistant Design (LFRD)

The Pultrusion Industry Council (PIC) of the American Composites Manufacturers Association (ACMA) and the American Society of Civil Engineers (ASCE) worked together to develop the first design standard for pultruded composites. This 3-year project, financially supported by the PIC members, resulted in the development of a “Pre-Standard for Load & Resistance Factor Design (LRFD) of Pultruded Fiber Reinforced Polymer (FRP) Structures,” ASCE served as the project manager in the development of the standard.

Currently, this Pre-Standard document is following the standards development process by ASCE and ANSI to promulgate this into an official ASCE Standard. The ASCE Fiber Composites and Polymers Standards Committee has the responsibility to review and ballot the Pre-Standard.

The LRFD standard will establish material properties for pultruded FRP composites that will allow architects and structural engineers to use pultruded FRP products with confidence.

LRFD Standard Outline

Pre-Standard Authors

Engineers, architects, and designers may request a complimentary copy of the LRFD PreStandard by contacting John Busel at

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