@article{ref1,
title="Multi-scale fatigue damage prognosis for long-span steel bridges under vehicle loading",
journal="Structure and infrastructure engineering: maintenance, management, life-cycle design and performance",
year="2019",
author="Sun, Bin and Xu, You-Lin and Wang, Feng-Yang and Li, Zhaoxia and Zhu, Qing",
volume="15",
number="4",
pages="524-538",
abstract="Fatigue damage prognosis for long-span steel bridges is of the utmost importance in bridge maintenance and management. In this study, a multi-scale fatigue damage prognosis algorithm is developed to calculate the trans-scale fatigue damage accumulation of newly-built long-span steel bridges under vehicle loading. The necessity and procedure of establishing a multi-scale finite element (FE) model of a newly-built long-span bridge for fatigue damage prognosis are first introduced. The future vehicle loading on the bridge is forecasted using the recorded weigh-in-motion (WIM) data and the agent-based traffic flow micro-simulation method. Then, the multi-scale fatigue damage prognosis algorithm is developed based on the multi-scale FE model and using the future vehicle loading. Finally, the proposed algorithm is applied to a newly-built long-span cable-stayed bridge for the time period from 2010 to 2020. The results show that the macro-scale fatigue damage accumulation and micro-scale short crack evolution of the critical components of the bridge can be simultaneously predicted and visualized. The proposed algorithm can be used as a numerical tool for fatigue damage prognosis of steel bridges where (or near where) WIM station is installed.<p /> <p>Language: en</p>",
language="en",
issn="1573-2479",
doi="10.1080/15732479.2018.1562478",
url="http://dx.doi.org/10.1080/15732479.2018.1562478"
}