Abstract
According to the design of underground garage roof structure for a practical project, this paper introduces basic structure and designing method of the honeycombed core hollow floor , compared with the multi-ribbed floor design . Then it calculates economic and technical indexes of two kinds of floor scheme. The results shows that the garage roof with honeycombed core hollow floor has better technical and economic advantages .What’s more, it behaves with large space as well as span more especially.
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