Construction and tests of reinforced concrete floor slabs and reinforced concrete floor system
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In the use of reinforced concrete for the construction of buildings, it is of importance that the structure be made as light as is consistent with strength. Especially is this true of concrete floors in concrete or steel structures where the dead load of the floor is an important item; being usually a large per cent of the designed working load. The cost of forms in the placing of concrete is one of the very important items in the construction of concrete floors. This is especially true for floors at elevated heights, such as the higher floors of office buildings, factories and warehouses. Where such floors are of "monolithic" or solid construction, the forms must be built in place and all material hoisted and poured into them. As these tight forms are often difficult to remove without injury, they can only be used a few times. In the following design of floor system, some of these difficulties are eliminated. The beams and columns are constructed in place, much the same as in the monolithic system, while the slabs may be built at any time or place and later hoisted into position. These slabs may be manufactured in sets of standard forms which can be used over and over again. When convenient, the slab's may be made at some locality other than the building site, and then be hauled or even shipped to the place of construction.
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