A no-beam composite floor

Abstract

The utility model discloses a kind of no truss composite floor, relate to building prefabricated component technical field, the no truss composite floor of this kind includes prefabricated concrete bottom plate, the inside of prefabricated concrete bottom plate is provided with structure bottom rib, the edge of prefabricated concrete bottom plate upper end is provided with several shear elements, the upper end of prefabricated concrete bottom plate is installed with component lifting hook, component lifting hook is provided with eight, and the bottom surface of component lifting hook is embedded in prefabricated concrete bottom plate, the shear element is recess structure, the present scheme solves the problem that existing steel bar truss composite floor exists material cost is high, production process is complex, construction is inconvenient.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building components, specifically a trussless composite floor slab. Background Technology

[0002] In the development of prefabricated buildings in China, most existing prefabricated structures use reinforced truss composite floor slabs, with a steel content in concrete mostly around 150 kg / m³. 3 The material cost is high because the production process is more complicated due to the need to process truss steel bars; because of the truss steel bars, the water and electricity pipelines need to be passed through the truss steel bars when laying them on the project construction site, which makes construction inconvenient.

[0003] Therefore, existing reinforced truss composite floor slabs have disadvantages such as high material costs, complex production processes, and inconvenient construction; therefore, we propose a trussless composite floor slab to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a trussless composite floor slab to solve the problems of high material cost, complex production process and inconvenient construction of existing steel truss composite floor slabs mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a trussless composite floor slab, comprising a precast concrete base slab, wherein structural bottom reinforcement is provided inside the precast concrete base slab, and a plurality of shear members are provided at the upper edge of the precast concrete base slab.

[0006] Preferably, the upper end of the precast concrete base slab is equipped with component hooks, eight of which are provided, and the bottom surface of the component hooks is embedded in the precast concrete base slab.

[0007] Preferably, the shear member has a groove structure.

[0008] Preferably, the bottom reinforcement of the structure is formed by interlacing several transverse and longitudinal reinforcements to form a mesh structure.

[0009] Preferably, the bottom of the precast concrete base slab is a smooth surface, while the top and sides are rough surfaces.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model eliminates the need for truss reinforcement. By adding shear grooves to the precast concrete base slab to replace truss reinforcement, it increases the bonding force between new and old concrete. At the same time, by setting vertical lifting points, it further enhances the bonding between new and old concrete, thereby reducing construction costs. Compared with traditional composite floor slabs, it reduces the steel content, reduces the production process of truss reinforcement, lowers production costs, and makes the construction site more convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the bottom reinforcement structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the component hook structure of this utility model;

[0016] In the diagram: 1. Precast concrete base slab; 2. Structural bottom reinforcement; 3. Shear member; 4. Component hook. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Please see Figure 1-4 An embodiment of this utility model is provided: a trussless composite floor slab, including a precast concrete base slab 1, a structural bottom reinforcement 2 is provided inside the precast concrete base slab 1, and a number of shear members 3 are provided at the upper edge of the precast concrete base slab 1. The structural bottom reinforcement 2 is formed by interlacing a number of horizontal and vertical reinforcements to form a mesh structure.

[0019] When concrete is poured at the construction site, the new, uncured concrete can flow into the grooved shear member 3 of the precast concrete base slab 1, and after curing, it can form a strong tie between the new and old concrete.

[0020] Please see Figure 1 and Figure 4 The upper end of the precast concrete base slab 1 is equipped with component hooks 4. There are eight component hooks 4, and the bottom surface of the component hooks 4 is embedded in the precast concrete base slab 1. The component hooks 4 are mainly used for lifting precast concrete components during demolding, transportation and hoisting. The material can be metal but is not limited to metal. The size and number of hooks are determined according to the weight of the precast components.

[0021] Furthermore, shear member 3 has a groove structure. Shear member 3 includes, but is not limited to, groove structures. Other shear-resistant members can be used. Its main purpose is to further enhance the connection stability between new and old concrete.

[0022] Furthermore, the bottom of the precast concrete base slab 1 is smooth, while the top and sides are rough. The rough surface further enhances the bonding between the new and old concrete, and its shape is determined according to the required shape of the floor slab.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A trussless composite floor slab, comprising a precast concrete base slab (1), characterized in that: The precast concrete base slab (1) is provided with structural bottom reinforcement (2) inside, and a number of shear members (3) are provided at the upper edge of the precast concrete base slab (1).

2. The trussless composite floor slab according to claim 1, characterized in that: The upper end of the precast concrete base plate (1) is equipped with component hooks (4), eight of which are provided, and the bottom surface of the component hooks (4) is embedded in the precast concrete base plate (1).

3. The trussless composite floor slab according to claim 1, characterized in that: The shear member (3) has a groove structure.

4. A trussless composite floor slab according to claim 1, characterized in that: The bottom reinforcement (2) of the structure is made of several horizontal and vertical reinforcements interwoven to form a mesh structure.

5. A trussless composite floor slab according to claim 1, characterized in that: The bottom of the precast concrete base plate (1) is smooth, while the top and sides are rough.

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