@article{ref1,
title="Assessment of fatigue life of a steel girder bridge in service",
journal="Transportation research record",
year="1974",
author="Csagoly, Paul and Cicci, Fernando",
volume="507",
number="",
pages="26-44",
abstract="To assess the fatigue life of welded, cover-plated steel girders, strain gauges were placed in critical locations on the superstructure of the Leslie Street overpass on the Toronto Bypass. Data were gathered for 200 hours in 12-hour continuous tape recording sessions. Analysis of the data revealed that normal traffic caused a live-load stress peak of 4,000 psi (2757 MPa) only once in 10 hours, which is less than 50 percent design live-load stress. Stress data gathered by various agencies during the past few years seem to indicate that either design stress does not occur at all or it occurs with such a low frequency that the development of any fatigue situation is precluded. The phenomenon is associated with the low probability of the simultaneous, multiple presence of loaded commercial vehicles on a structure. The problem is therefore statistical in nature. Its recognition appears to be in conflict with the prevailing concept used in fatigue consideration of highway bridges.<p /><p>Language: en</p>",
language="en",
issn="0361-1981",
doi="",
url="http://dx.doi.org/"
}