AASHTO Steel Bridge Bearing Design and Detailing Guidelines

American Association of State Highway and Transportation Officials (AASHTO) Document No: SBB-1 2004. 50p. This document is a standard developed by the AASHTO/ NSBA Steel Bridge Collaboration. The primary goal of the Collaboration is to achieve steel bridges of the highest quality and value through standardization of the design, fabrication, and erection processes. Each standard represents the consensus of a diverse group of professionals.
The purpose of this guide is to present steel bridge bearing details that are cost effective, functional, and durable. Three major types of bridge bearings are presented.
Elastomeric bearings
The details are for steel reinforced elastomeric pads; however, much of the content is directly applicable to fiberglass reinforced, plain, and cotton duck pads as well.
High Load Multi-Rotational bearings (HLMR)
The details include pot, disc, and spherical bearings
Steel bearings
The details are primarily used for fixed bearing lines.