This paper presents the structure scheme and vibration specific of top floor of double-decked train.
讨论了双层客车上层客室地板的结构方案及振动特性。
This paper states structure design scheme of architecture adding-floor from two aspects of direct adding and adding a floor at out structure.
本文从直接增层方案和外套结构增层方案两方面，论述了建筑物增层的结构设计方案及要求。
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