Excerpt from Tests of Cellular Sheet-Steel Flooring
Where the top and bottom sheets of a panel were in contact between the cells, they were joined by two rows of -'three-eighths-inch spot welds, the welds being about 1g inches apart in each row. The horizontal portion of the assembled section where these welds occur will be spoken of subsequently as the web. In all specimens the bottom sheet was made in two parts separated down the center web. In all the specimens numbered X through XXIV the top sheet was in one piece, this representing the latest manufacturing method. The top sheets of specimens I through IX were made in two pieces with the separation occurring down the center web, this type of construction being clearly shown in the type A panel of Figure 1. In all type B specimens the top sheets were in one piece.
The top sheet of the panels was bent down on either side for a lateral connection to adjacent panels when erected.
The specimens were uncoated showing the mill scale on the sheets except for numbers I, VI, X, XI, and XII, which had been given one coat of paint, inside the cells as well as on the outside surface.
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