Reinforced concrete hollow floor slab and construction method
A technology for reinforced concrete and hollow floor slabs, which is applied to slabs, building components, buildings, etc., can solve the problems of poor slab integrity, high concrete consumption, and increased slab cost.
Inactive Publication Date: 2010-10-20
吴方伯
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Problems solved by technology
This kind of hollow floor has the following disadvantages: the consumption of steel bars and concrete is large, the self-heavyness increases the cost of the floor, and the integrity of the floor is not good
Method used
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Embodiment Construction
[0020] The present invention will be further described below in conjunction with accompanying drawing.
[0021] The invention is attached Figure 1-8 As shown, a reinforced concrete hollow floor slab includes cast-in-place dense ribs 1 , prefabricated side walls 2 , prefabricated bottom slab 3 , and cast-in-place roof slab 4 . One or more holes 18 are arranged on the prefabricated bottom plate 3, and nuts 16 and sleeves 17 are pre-embedded in the holes 18. When pouring concrete, since there is a sleeve 17 in the hole 18, it is ensured that the concrete will not block the hole 18. After pouring the concrete, after the concrete reaches a certain strength, the bolt 13 is inserted into the sleeve 17, and the nut 16 is engaged. The prefabricated floor 3 is placed on the bottom projection 7 of the prefabricated side wall 2 .
[0022] The hollow floor slab is composed of a prefabricated side wall 2 , a prefabricated bottom slab 3 , and a cast-in-place top slab 4 to form a cavity 5 ...
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The invention discloses a reinforced concrete hollow floor slab and a construction method. The hollow floor slab comprises a cast-in-situ multi-rib (1), a prefabricated side wall (2), a prefabricated soleplate (3) and a cast-in-situ crest slab (4). The prefabricated soleplate (3) is provided with one or more holes (18), and a screw cap (16) and a bushing (17) are pre-buried inside the hole (18). The construction method comprises the following steps: erecting a molding plate (11), binding reinforced bars (12), and placing the prefabricated side wall (2); placing the prefabricated soleplate (3) on a holding piece (9), pouring the concrete, inserting a bolt (13) into the bushing (17) after the concrete reaches a given strength, removing the holding piece (9), and placing the prefabricated soleplate (3) on a bottom projection (7) through a bolt (13); and painting mortar (15) on the prefabricated soleplate (5) to form an integral hollow floor slab. The cast-in-situ concrete and the prefabricated component of the hollow floor slab form the common-stressed structural system, so the floor slab has light weight, low cost and good stress performance and integrity.
Description
Technical field: [0001] The invention relates to the field of building construction, in particular to a reinforced concrete hollow floor slab and a construction method. Background technique: [0002] Reinforced concrete cast-in-place hollow slabs consume less material than reinforced concrete solid slabs, and the slabs are lighter in weight. The existing reinforced concrete hollow slabs (patent application number 200420035588.6) adopt the technology of placing reinforced concrete hollow prefabricated components vertically and horizontally on the bottom reinforced concrete On the top, the gaps between the vertical and horizontal hollow prefabricated components are filled with reinforced concrete to form dense ribs to form a hollow floor slab. This hollow floor slab has the following disadvantages: steel bars and concrete consume a lot of material, and it is heavy, which increases the cost of the floor slab, and the integrity of the floor slab is not good. Invention content:...
Claims
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Login to View More IPC IPC(8): E04B5/17E04B5/23
Inventor 周绪红吴方伯黄婷徐静邓利斌
Owner 吴方伯