Sandwich panel
A technology of laminated slabs and bottom slabs, applied to floors, building components, buildings, etc., can solve the problems of short construction period, large longitudinal steel bar gap, and large thickness, and achieve improved strength and rigidity, good load-bearing performance, and not easy to damage Effect
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[0058] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0059] As shown in the accompanying drawings, the present invention includes reinforced concrete 1 and reinforced concrete ribbed prefabricated slab 2. The reinforced concrete ribbed prefabricated slab 2 is arranged at the bottom of the laminated slab, and the reinforced concrete ribbed prefabricated slab 2 includes a reinforced concrete strip bottom plate 3 and The longitudinal long rib 4 of reinforced concrete is characterized in that there are transverse grooves 5 or / and convex lines 6 on the long bottom plate 3, and there is at least one communicating hole 7 connected to both sides of the longitudinal long rib 4, and the hole 7 is higher or lower than the bottom plate 3 The surface is or parallel to the surface of the base plate 3 . In each drawing, 1 is reinforced concrete, 2 is reinforced concrete ribbed prefabricated slab, 3 is bottom plate, 4 is...
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