Heavy Axle Load Effects on Fatigue Life of Steel Bridges

Author:

Unsworth John F.1

Affiliation:

1. Structures Planning and Design, Canadian Pacific Railway, 401 9th Avenue SW, Suite 700, Calgary, Alberta T2P 4Z4, Canada

Abstract

Heavy axle railway loads (freight equipment with more than a 100-ton capacity and gross vehicle weights exceeding 263,000 lb) have been introduced extensively on North American Class I freight railroads in the past decade. An overview is presented of the effects of heavy axle loads on the fatigue life of steel bridges in the North American freight railroad infrastructure. Also outlined are life extension and rehabilitation techniques typically used to maintain the safety and reliability of existing steel railway bridges.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Civil and Structural Engineering

Reference47 articles.

1. Train Loadings for Railroad Bridges

2. Evaluation of remaining fatigue life for riveted truss bridges

3. DickS. M. Bending Moment Approximation Analysis for Use in Fatigue Life Evaluation of Steel Railway Girder Bridges. Ph.D. dissertation. University of Kansas, Lawrence, 2002.

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