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钢管混凝土拱桥的挠度限值研究

, PP. 56-60

Keywords: 桥梁工程,钢管混凝土拱桥,理论分析,挠度限值

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Abstract:

？为了分析挠度限值是否能控制钢管混凝土拱桥结构的振动,在对桥梁活载挠度限值研究进行回顾的基础上,以3座不同结构形式的钢管混凝土拱桥为典型算例,分别采用挠度限值和动力参数限值对钢管混凝土拱桥的行车舒适性进行了分析。分析结果表明:挠度限值并不能有效地反映在活载作用下的实际振动和振感;建议在钢管混凝土拱桥的设计中,采用振动参数控制法取代活载挠度限值法来评价和控制钢管混凝土拱桥的行车舒适性。

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