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摘要

The first five papers in the May 2010 issue of the Journal of Bridge Engineering are focused on the behavior of bridges subject to various types of dynamic loads, such as traffic, wind, earthquakes, etc. "Dynamic Performance Simulation of Long-Span Bridge under Combined Loads of Stochastic Traffic and Wind" by Chen and Wu presents a new "semideterministic" bridge dynamic analytical model that considers dynamic interactions between bridge, wind, and stochastic "real" traffic by integrating the equivalent dynamic wheel load (EDWL) approach and the cellular automaton (CA) traffic flow simulation. Using this approach, statistical dynamical behavior of long-span bridges can be predicted with a more realistic and adaptive consideration of combined loads of traffic and wind. In addition to slender long-span bridges, which are sensitive to wind, this model can also be used for other conventional long-span bridges as well as roadway pavement to achieve more realistic understanding of the structural performance under probabilistic traffic and dynamic interactions.
机译:在2010年5月出版的《桥梁工程杂志》上,前五篇论文重点讨论了桥梁在各种类型的动态载荷(例如交通,风,地震等)作用下的行为。“大跨度桥梁的动态性能仿真” Chen和Wu的“随机交通与风的组合荷载”提出了一种新的“半确定性”桥梁动力分析模型,该模型通过将等效动轮荷载(EDWL)方法与EDWL方法相结合来考虑桥梁,风和随机“真实”交通之间的动力相互作用。元胞自动机(CA)交通流仿真。使用这种方法,可以通过对交通和风的联合负荷进行更现实和自适应的考虑来预测大跨度桥梁的统计动力学行为。除了对风敏感的细长大跨度桥梁之外,该模型还可以用于其他常规大跨度桥梁以及道路路面,以在概率交通和动力相互作用下更真实地了解结构性能。

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