TY  - JOUR
PY  - 2019//
TI  - Dynamic stress analysis for fatigue damage prognosis of long-span bridges
JO  - Structure and infrastructure engineering: maintenance, management, life-cycle design and performance
A1  - Wang, Feng-Yang
A1  - Xu, You-Lin
A1  - Sun, Bin
A1  - Zhu, Qing
SP  - 582
EP  - 599
VL  - 15
IS  - 5
N2  - For fatigue damage prognosis of a long-span steel bridge, the dynamic stress analysis of critical structural components of the bridge under the future dynamic vehicle loading is essential. This paper thus presents a framework of dynamic stress analysis for fatigue damage prognosis of long-span steel bridges under the future dynamic vehicle loading. The multi-scale finite element (FE) model of the bridge is first developed using shell/plate elements to simulate the critical structural components (local models) and using beam/truss elements to simulate the rest part of the bridge (global model). With the appropriate coupling of the global and local models, the multi-scale FE model can accurately capture simultaneously not only the global behavior in terms of displacement and acceleration but also the local behavior in terms of stress and strain. A vehicle traffic load model is then developed for forecasting the future vehicle loading based on the recorded weigh-in-motion (WIM) data and using the agent-based traffic flow microsimulation. The forecasted future vehicle loading is finally applied on the multi-scale model of a real long-span cable-stayed bridge for dynamic stress analysis and fatigue damage prognosis. The obtained results show that the proposed framework is effective and accurate for dynamic stress analysis and fatigue damage prognosis.<p />  <p>Language: en</p>
LA  - en
SN  - 1573-2479
UR  - http://dx.doi.org/10.1080/15732479.2019.1569072
ID  - ref1
ER  -