Concrete composite slab floorslab with shear key and prefabricated construction and construction method
A technology of shear key and concrete, which is applied in the direction of floors, building structures, building components, etc., can solve the problems of increasing the amount of steel bars, high project cost, and floor thickness, etc., and achieve the effect of reducing the thickness of the plates and the amount of steel bars
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[0034] like Figure 1-4 As shown, the present invention is provided with shear keys 1 on the prefabricated base plate 2, and the shear keys 1 are evenly distributed on the prefabricated base plate 2 according to the shear force and tensile force that the shear key 1 needs to bear. Among them, the section of the shear key 1 is designed as an I-shaped ( Figure 2-4 ); or, the shear key 1 may be a ring type, a hexagonal type or other shapes.
[0035] like Figure 5-7 As shown, the concrete laminate floor slab with shear key of the present invention mainly includes a cast-in-place layer 3 and a prefabricated bottom plate 2 arranged up and down. The pouring layer 3 is connected to form a firm bonding structure. One end of the shear key 1 is buried in the prefabricated bottom plate, and the other end is buried in the cast-in-place layer.
[0036] like Figure 8-9 As shown, the prefabricated structure of the concrete laminated floor slab with shear key of the present invention m...
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