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九江公铁长江大桥卸载——趣味建筑学（213）

2017-11-13 10:49:18| 分类：趣味桥梁学 | 标签： |举报 |字号大中小订阅

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九江公铁长江大桥，更换公路桥面系；

既治理了病害，又减轻了自重提高承载能力；

开口的正交异性板，日常防腐维护工作量也可观；

但是，几十年后再来一次，也就快一百岁啦。

1.拆除较重的混凝土板

2.更换为较轻的正交异性钢板梁

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