A Railroad Track Structural Analysis Method for Work Planning: Developmentand Example Application by

This report documents the development of a railroad track structural analysis method, describes an example application, and includes an executable computer program on diskette. This method was originally developed for the Railroad Engineered Management System (RAILER).") The method is intended to help provide an esti-mate of an existing track's suitability to handle its expected loading and to permit an assessment of the potential effects of changes in the track--either improvements or deterioration. It employs D T IC five equations that provide values for rail bending E L E CT E stress, tie bending stress, tie reaction force,.,l ballast surface stress, and subgrade surfacei NOV9 stress. The equations are designed for con-, ventional track and will handle the full range of track conditions and loads normally encountered. Approved for public release; distribution is unlimited. The contents of this report are not to be used for advertising, publication, or promotional purposes. Citation of trade names does not constitute an official indorsement or approval of the use of such commercial products. The findings of this report are not to be construed as an official Depart-ment of the Army position, unless so designated by other authorized documents