64 m栓焊钢桁梁重载适应性分析及强化对策

Railway Engineering(2015)

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Abstract
根据神华铁路既有路网扩能改造计划,将在朔黄铁路规模化开行2 万 t 重载列车,达到年运量4亿t及以上的生产目标.发展重载运输须研究既有桥梁的重载适应性问题.本文通过对重载列车作用下既有64 m栓焊钢桁梁在承载能力适应性和疲劳累积损伤的分析、计算,提出在轴重30 t列车作用下既有64 m钢桁梁的薄弱环节,并针对薄弱环节进行了强化改造措施研究,提出了强化对策.
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