Test Of In-situ Concrete Hollow Floor And In Engineering Applications

With the persistent development of science and technology, a lot of new technologies for structure have been produced. Site-mixed-hollow concrete slab is one of the examples. The technology for Site-mixed-hollow concrete slab applies the principle of pre-mixed-hollow concrete slab, which embeddings hollow tubes into Site-mixed-hollow concrete slabs according to certain directional arrangement and then pours them on the site. So this method can change the former concrete into hollow slab. The key point of this technology is how to mould and manufacture concrete member ( BDF) . This item of technology has been obtained the national patent.My article presents the ideas as follows:It summarizes the application and development of the patent technology for Site-mixed-hollow concrete slab and also introduces some engineering examples and the alteration of calculational methods. It gives the comparison of economic index for several kinds of structural forms among the slabs. And it presents an analysis of the model experiment for slabs as well as the points for attention under construction.I think along with the extensive application of site-mixed-hollow concrete slab, this structural technology will be improved and developed continuously and at the same time get more social benefits.