Field Tests of Railway Bridges

by D. A. Foutch, Univ of Illinois, Urbana, United States,
D. H. Tobias, Univ of Illinois, Urbana, United States,
J. Choros, Univ of Illinois, Urbana, United States,



Document Type: Proceeding Paper

Part of: Structures Congress XII

Abstract:

A research program focused on the evaluation of railway bridges has been underway for the past five years. The objectives of a research are as follows: (1) determine the loading spectra to which railway bridges are subjected under today's operating conditions; (2) determine how older riveted steel bridges respond to those loads; (3) develop a model for predicting the remaining life of steel railway bridges. A description of the types of measurements taken and a summary of important results for five bridge tests are given. In spite of longer-than-expected loads,the levels of stress in these bridges are quite low, and the accumulation of fatigue damage is minimal.



Subject Headings: Steel bridges | Railroad bridges | Bridge tests | Load tests | Load factors | Structural steel | Field tests | Rivets

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