void slab spiral tube

The void slab structure is the answer to problems in steel concrete such as heavy weight, difficult span installation and long construction period. The void slab has been used in other countries. As one of RC construction methods, it is used for schools, buildings, apartments, government offices, and bridges.In this method, a spiral tube is inserted into the void slab to increase secondary moment by making the pipe lighter and building a slab section as shown in the picture. Therefore, it has strong resistance to bending, 4m or longer cantilevers without a bow and spans can be made. Also, as load is applied in the same direction as the slab, it can support load in a slant direction. Since slab has a one-direction difference between stiffness, load transfer calculation can be very simple. It is suitable for long spans. - As small bows are not needed, vast space can be made. - 4m or longer cantilever slabs are possible. - As it delivers load in one direction, it is suitable for directional structures. - It is suitable for stair-typed floors. - The slab void can be used as a duct. - It can reduce the total height of building by reducing story height. - Since it insulates heat effectively, it is an economical choice especially for cold storage warehouses. Slabs for general building, apartment, government building, public building, bridge, and overpass - Install the molding form - Locate the void pipe - Install the bottom steel beam - Install the support - Install the facility pipe and wire pipe(bottom) - Install the void pipe (binding to prevent injuries) - Install the upper steel beam - Bind the strap - Install the pipe (Top) - Place concrete SLAB Thichness Pipe Pitch Pipe Diameter Pipe Plate Thickness Pipe Spacing Average Slab Thickness Optimal Span Slab Weight Concrete Sectional Moment for 1P D(?) P(?)

The void slab structure is the answer to problems in steel concrete such as heavy weight, \