Novel assembly type support-free composite floor plate

Abstract

The utility model relates to the technical field of composite floor plates, and discloses a novel assembly type support-free composite floor plate which comprises a hidden beam, a heat preservation plate, a surface layer and a foundation pillar, an assembly hole is formed in the hidden beam, the beam is flush with the bottom of a bottom plate, the beam end and the assembly hole exceed the plate end by a supporting length, and a reinforcing mesh is arranged at the top of the heat preservation plate. A concrete surface layer is poured on the meshes and is flush with the top of the beam, steel bars of the meshes extend out of the edge of the beam, the steel bars extend out of a seam of two plates to be lapped and bound, then longitudinal steel bars are bound and extend into a floor to reach the anti-seismic anchoring length, and the anti-anchoring effect of the plate edges is achieved; due to the fact that an anti-seismic structure of hidden beam supports and foundation pillars is adopted, various requirements of Hangzhou earthquake design can be met, support-free can be achieved, and the measure cost that a current laminated slab needs to be supported is reduced; meanwhile, more production and construction links of secondary steel bar installation and concrete pouring are reduced, the construction efficiency is improved, the management cost of various links is effectively reduced, and the comprehensive efficiency and project benefits are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of composite floor slab technology, specifically a novel prefabricated support-free composite floor slab. Background Technology

[0002] Prefabricated buildings are facing challenges due to high costs and low awareness of quality and safety. Given the persistently high production and installation costs of composite slabs, coupled with the significant additional work involved in secondary reinforcement installation and concrete pouring, many companies are attempting to improve them. However, these improvements are often limited to eliminating the need for supports, and the seismic design remains inadequate. This still necessitates extensive secondary reinforcement installation and concrete pouring, further increasing construction time and failing to effectively reduce overall costs. Utility Model Content

[0003] The purpose of this utility model is to provide a novel prefabricated, support-free composite floor slab to solve the problems mentioned in the background art, such as imperfect seismic structure, the need for secondary large-scale steel reinforcement installation and concrete pouring, which increases construction time and makes it impossible to effectively reduce overall costs.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel prefabricated support-free composite floor slab, comprising a concealed beam and a bottom beam, wherein the concealed beam has an assembly hole inside, a connecting strip is fixed to the bottom of the concealed beam, an insulation board is assembled between the concealed beams, a steel mesh is formed inside the top of the insulation board, and a reserved hole is provided inside the insulation board.

[0005] As a further technical solution of this utility model, the hidden beams are symmetrically distributed about the central axis of the connecting plate strip, and the assembly holes are symmetrically distributed about the central axis of the connecting plate strip.

[0006] As a further technical solution of this utility model, the reserved holes are evenly distributed in three groups inside the insulation board, the steel mesh is crisscrossed inside the top of the insulation board and extends into the edge of the board, and horizontal and vertical steel bars are tied at the board joints to extend into the floor to achieve the seismic anchorage length, thus playing a double-insurance anti-anchoring effect.

[0007] As a further technical solution of this utility model, a base column is fixed to the top of the bottom beam of the plate, and the base column is adapted to the assembly hole.

[0008] As a further technical solution of this utility model, concrete is poured at the position of the reserved hole to connect and fix it with the connecting plate strip, and concrete is poured and fixed between the bottom beam of the plate and the base column.

[0009] Compared with the prior art, the beneficial effects of this utility model are: this new type of prefabricated support-free composite floor slab improves assembly convenience and seismic resistance, realizes support-free installation, and significantly saves costs;

[0010] (1) The assembly hole is fixed to the base column by pouring, and the reserved hole is fixed to the base column at the actual working surface position. Then, the connecting plate is fixed at the bottom of the hidden beam, and the insulation board is added between the hidden beams. The reserved holes are evenly distributed in the insulation board. After pouring concrete at the reserved hole position, the connection and fixation between the insulation board and the connecting plate is completed. The top of the insulation board is opened with steel mesh and concrete is poured to form an integral whole, which facilitates filling and pouring. The assembly hole is opened in the hidden beam. Therefore, when the connecting plate, the hidden beam and the insulation board are formed as a whole, the base column is assembled through the assembly hole position, and then concrete is poured to reinforce it. Then, the second plate is installed. The steel bars extending between the two plates are lapped in the formwork direction, and then the longitudinal bars are tied and extended into the opposite floor for seismic anchoring, which achieves the seismic effect of the floor.

[0011] (2) This makes the overall operation simpler and more convenient, reduces many secondary steel bar installation and concrete pouring production and construction links, improves construction efficiency, saves construction period, effectively reduces management costs of various links, and greatly improves comprehensive efficiency and project benefits. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the base column of this utility model.

[0014] In the diagram: 1. Connecting strip; 2. Hidden beam; 3. Insulation board; 4. Steel mesh; 5. Assembly hole; 6. Reserved hole; 7. Bottom beam of slab; 8. Foundation column. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-2 An embodiment of this utility model is provided: a novel prefabricated support-free composite floor slab, including a hidden beam 2 and a bottom beam 7. The hidden beam 2 has an assembly hole 5 inside. A connecting strip 1 is fixed to the bottom of the hidden beam 2. An insulation board 3 is assembled between the hidden beams 2. A steel mesh 4 is formed inside the top of the insulation board 3. A reserved hole 6 is opened inside the insulation board 3.

[0017] As a further technical solution of this utility model, the hidden beam 2 is symmetrically distributed about the central axis of the connecting plate strip 1, and the assembly holes 5 are symmetrically distributed about the central axis of the connecting plate strip 1.

[0018] As a further technical solution of this utility model, the reserved holes 6 are evenly distributed in three groups inside the insulation board 3, and the steel mesh 4 is crisscrossed inside the top of the insulation board 3.

[0019] As a further technical solution of this utility model, a base column 8 is fixed on the top of the bottom beam 7, and the base column 8 and the assembly hole 5 are mutually adapted to each other.

[0020] As a further technical solution of this utility model, concrete is poured at the position of the reserved hole 6 to connect and fix it with the connecting plate strip 1, and concrete is poured and fixed between the bottom beam 7 and the base column 8.

[0021] It should be noted that multiple beams, including double T-beams and wide, flat beams, are used in the construction process, with adjustments made according to the slab width. The bottom slab of the beam is 40-50mm thick, and the upper part is filled with lightweight materials or insulation boards. The surface layer consists of 4 layers of composite steel mesh and 30-60mm thick concrete. This achieves lightweight insulation and energy-saving effects. At the same time, it effectively reduces the self-weight of the components and the total building load, and also facilitates transportation and installation.

[0022] Further, connecting strips 1 are set on the three sides of the insulation board. After installation, the first and second seismic continuous reinforcing bars are configured, and concrete is poured to meet the seismic fortification requirements of the structural floor slab.

[0023] The costs of the above-mentioned construction, transportation, and installation processes are significantly lower compared to the stacked slab method. At the same time, it reduces many secondary steel reinforcement installation and concrete pouring production and construction processes, improves construction efficiency, saves construction time, effectively reduces management costs in various aspects, and greatly improves overall efficiency and project benefits.

[0024] Using standard sizes of 1500, 1800, and 2100, they can be combined to form conventional bay sizes such as 3.1m, 3.3m, 3.6m, 3.9m, 4.2m, 4.5m, 4.8m, and 5.1m. By adjusting the width of the board joints, they can be adjusted to various sizes, thereby achieving large-scale mass production.

[0025] Working principle: First, during operation, the bottom beam 7 and the base column 8 are pre-fixed by pouring concrete, and the bottom beam 7 and the base column 8 are fixed at the actual working surface position. Then, the connecting strip 1 is connected and fixed at the bottom of the hidden beam 2, and the insulation board 3 is added and assembled between the hidden beams 2. The reserved holes 6 are evenly distributed in the insulation board 3. After pouring concrete at the reserved holes 6, the connection and fixation between the insulation board 3 and the connecting strip 1 are completed. After the steel mesh 4 is opened in the top of the insulation board 3, the filling is poured to form the surface layer. The assembly holes 5 are opened in the hidden beam 2. Therefore, after the connecting strip 1, the hidden beam 2, and the insulation board 3 are formed as a whole, the base column 8 is assembled through the assembly hole 5, and then concrete is poured for reinforcement. After the slab is installed, the transverse connecting steel bars and the longitudinal seismic anchor steel bars are tied between the slab joints. Finally, concrete is poured together with the entire slab surface to form a complete seismic-resistant floor structure system.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A novel prefabricated, support-free composite floor slab, comprising a concealed beam (2) and a bottom beam (7), characterized in that: The hidden beam (2) has an assembly hole (5) inside, a connecting plate strip (1) is fixed at the bottom of the hidden beam (2), an insulation board (3) is assembled between the hidden beams (2), a steel mesh (4) is formed in the top of the insulation board (3), and a reserved hole (6) is opened in the insulation board (3).

2. The novel prefabricated support-free composite floor slab according to claim 1, characterized in that: The hidden beam (2) is symmetrically distributed about the central axis of the connecting plate (1), and the assembly holes (5) are symmetrically distributed about the central axis of the connecting plate (1).

3. The novel prefabricated support-free composite floor slab according to claim 1, characterized in that: The reserved holes (6) are evenly distributed in multiple groups within the insulation board (3), and the steel mesh (4) is crisscrossed within the top of the insulation board (3).

4. The novel prefabricated support-free composite floor slab according to claim 1, characterized in that: The top of the bottom beam (7) is fixed with a base column (8), and the base column (8) is adapted to the assembly hole (5).

5. A novel prefabricated support-free composite floor slab according to claim 1, characterized in that: Concrete is poured at the location of the reserved hole (6) to connect and fix it with the connecting plate strip (1), and concrete is poured and fixed between the bottom beam (7) and the base column (8).

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