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AASHTO LRFDLTS

1st Edition, 2015

Complete Document

Interim Revisions to the LRFD Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals

Includes all amendments and changes through Interim Amendment 3, 2019


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INCLUDES IA1 AND IA2
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Description / Abstract:

The provisions of these load and resistance factor design specifications for structural supports for highway signs, luminaires, and traffic signals, hereinafter referred to as the Specifications, are applicable to the structural design of supports for highway signs, luminaires, and traffic signals (LRFD Structural Supports). The types of supports addressed in these Specifications are discussed in Article 1.4. The Specifications are intended to serve as a standard and guide for design, fabrication, construction, inspection, and asset management.

These Specifications are not intended to supplant proper training or the exercise of judgment by the Designer. They include only the minimum requirements necessary to provide for public safety. The Owner or the Designer may require the design, quality of materials, fabrication, construction, and asset management to be higher than the minimum requirements.

The design provisions of these Specifications employ the Load and Resistance Factor Design (LRFD) methodology. The factors have been developed from the theory of reliability based on current statistical knowledge of loads and structural performance, including materials properties.

Seismic design is not included in these Specifications, and such procedures should be prescribed by the Owner.

The commentary references other documents that provide suggestions for meeting the requirements and intent of these Specifications. However, those documents and the commentary are not intended to be a part of these Specifications.