Technical and Economic Research on Cast-in-place Concrete Hollow Floor Structure (City Building Engineering)

摘要

As a new type of construction technology, the hollow girderless floor structure has been widely used in many projects. The paper studied economic efficiency of the new hollow girderless floor structure system (with thin-walled bellows) and the common beam-slab structure system as the standard floor for city building projects. By comparison and analysis, it is concluded that the new hollow girderless floor structure technology would substantially cut construction material consumption and direct project cost and outperform the common beam-slab structure system. The longer the column span is and the larger the vertical load is, the more obvious the economic benefits are.