Prefabricated laminated slab

Abstract

The utility model relates to the field of building construction, in particular to a prefabricated laminated slab which comprises a laminated slab body, a core cylinder assembly and a plurality of prestressed steel bars are embedded in the laminated slab body, the core cylinder assembly is located in the middle of the laminated slab body, and the prestressed steel bars are distributed around the core cylinder assembly at intervals. The core cylinder assembly comprises at least three core steel cylinders extending front and back. The longitudinal section of each core steel cylinder is in a regular polygon shape, the two ends of each core steel cylinder penetrate through the front side face and the rear side face of the laminated slab body respectively, all the core steel cylinders are arranged in a broken line shape, and one core steel cylinder is clamped between the side walls of every two adjacent core steel cylinders located at the same height. And the end parts of the prestressed reinforcements respectively extend out of the front and rear side surfaces of the laminated slab body. The composite slab is light in weight, easy to transport and hoist and capable of effectively avoiding structural damage caused by embedded pipelines in the construction process of the composite slab.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a prefabricated composite board. Background Art

[0002] As a common building material, composite panels are widely used in various building structures due to their high efficiency, speed and reusability. However, the production process of traditional composite panels requires a large amount of steel bars and concrete raw materials, which has high manufacturing costs and heavy weight, which is not conducive to cost control and transportation.

[0003] At the same time, traditional composite panels often need to be constructed in parallel with mechanical and electrical engineering and decoration projects. In order to pre-embed water pipes, electricity pipes, network cables and other pipelines in the composite panels, it is usually necessary to drill holes in the composite panels twice, which not only increases the difficulty and cost of construction, but may also damage the structure and strength of the composite panels.

[0004] In addition, during the stacking or transportation process, traditional composite panels generally use wooden planks or pads to support two adjacent composite panels. This practice is inefficient and wastes manpower. If the composite panels are stacked directly, it will be inconvenient for subsequent lifting and handling, and it is very easy to cause damage to the surface of the composite panels, affecting the use effect. Utility Model Content

[0005] The utility model aims to provide a prefabricated composite board which is lightweight, easy to transport and lift, and can effectively avoid structural damage caused by pre-buried pipelines during the construction of the composite board.

[0006] The purpose of the utility model is achieved through the following technical solutions: a prefabricated composite board, which includes a composite board body, wherein a core barrel assembly and a plurality of prestressed steel bars are pre-buried inside the composite board body, wherein the core barrel assembly is located in the middle of the composite board body, and the prestressed steel bars are distributed around the core barrel assembly at intervals;

[0007] The core barrel assembly includes at least three core steel barrels extending forward and backward;

[0008] The longitudinal cross-section of the core steel cylinder is a hollow regular polygon, and its two ends respectively penetrate the front and rear side surfaces of the laminated plate body. The core steel cylinders are arranged in a broken line shape, and a core steel cylinder is sandwiched between the side walls of two adjacent core steel cylinders at the same height;

[0009] The prestressed steel bars extend forward and backward, and their ends also extend out of the front and rear sides of the composite plate body respectively.

[0010] Compared with the prior art, the advantages of the utility model are:

[0011] 1. By setting up the core tube assembly, the steel bars and concrete materials required for making the composite plate are reduced, and the lightweight of the composite plate is achieved while reducing the manufacturing cost; and the two ends of the core steel tube pass through the front and rear sides of the composite plate body, and the inner cavity of the core steel tube can be directly inserted into the lifting rope or hook, which is convenient for the lifting operation during the construction process; in addition, the inner cavity of the core steel tube after installation can also be directly inserted into the pre-buried wire groups such as water pipes, electric pipes and network cables, without the need for secondary drilling of the composite plate, which not only reduces the construction difficulty and cost, but also avoids the structural damage that may be caused by drilling.

[0012] 2. Through the cooperation of supporting steel cylinders and ribs, multiple prefabricated composite panels can be supported on the supporting steel cylinders through ribs when stacked or transported. This is not only easy to store, transport and lift, but also prevents brittle damage caused by direct contact between adjacent composite panel surfaces, thereby ensuring product quality and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of a prefabricated composite panel of the utility model;

[0014] Figure 2 It is a front view of a prefabricated composite board of the utility model;

[0015] Figure 3 It is a top view of a prefabricated composite board of the utility model;

[0016] Figure 4 It is a bottom view of a prefabricated composite board of the utility model;

[0017] Figure 5 It is a right view of a prefabricated composite board of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the core barrel assembly of the utility model;

[0019] Figure 7 The utility model is a schematic diagram of stacking a prefabricated composite board.

[0020] Explanation of reference numerals: 1 composite plate body, 2 core tube assembly, 201 core steel tube, 3 prestressed steel bars, 4 supporting steel tube, 5 ribs. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to the accompanying drawings and embodiments:

[0022] like Figure 1-6, which is a schematic diagram of an embodiment of a prefabricated composite board provided by the utility model, a prefabricated composite board, which includes a composite board body 1, wherein a core barrel assembly 2 and a plurality of prestressed steel bars 3 are pre-embedded inside the composite board body 1, wherein the core barrel assembly 2 is located in the middle of the composite board body 1, and the prestressed steel bars 3 are distributed around the core barrel assembly 2 at intervals;

[0023] The core barrel assembly 2 includes at least three core steel barrels 201 extending forward and backward;

[0024] The longitudinal cross-section of the core steel cylinder 201 is a hollow regular polygon, and its two ends respectively penetrate the front and rear side surfaces of the composite plate body 1. The core steel cylinders 201 are arranged in a broken line shape, and a core steel cylinder 201 is sandwiched between the side walls of two adjacent core steel cylinders 201 at the same height;

[0025] The prestressed steel bars 3 extend forward and backward, and their ends also extend out of the front and rear sides of the composite plate body 1 respectively.

[0026] The core steel cylinders 201 in the core cylinder assembly 2 are connected to each other by welding or riveting.

[0027] The longitudinal cross section of the core steel cylinder 201 is a regular pentagon or a regular hexagon.

[0028] It also includes two supporting steel cylinders 4 embedded in the composite plate body 1, and the two supporting steel cylinders 4 are respectively fixed on the left and right sides of the core cylinder assembly 2;

[0029] The supporting steel cylinder 4 extends forward and backward, and its two ends respectively penetrate the front and rear side surfaces of the composite plate body 1 . The top surface of the supporting steel cylinder 4 extends out of the top surface of the composite plate body 1 , and the top surface of the supporting steel cylinder 4 is parallel to the top surface of the composite plate body 1 .

[0030] The supporting steel cylinder 4 and the core cylinder assembly 2 are connected to each other by welding or riveting.

[0031] The inner cavity of the core steel tube 201 can accommodate the insertion of a hook, a lifting rope or a lifting pin of a lifting device, which is convenient for lifting operations during construction. During lifting, the core steel tube in the core tube assembly 2 is preferably inserted into the lifting device and lifted to a designated position. Pre-buried wire groups such as water pipes, electric pipes and network cables can also be inserted into the inner cavity of the core steel tube.

[0032] When the longitudinal cross-section of the core steel cylinder 201 is a regular hexagon, the plurality of core steel cylinders 201 in the core cylinder assembly 2 may also be arranged in a honeycomb shape to improve the overall structural stability of the core cylinder assembly 2 .

[0033] A plurality of anchor cones extending downward are provided at intervals at the front and rear of the bottom side of the core steel tube 201 to enhance the connection between the core steel tube 201 and the composite plate body 1 .

[0034] A plurality of ribs 5 extending leftward and rightward are provided at intervals at the bottom of the composite plate body 1 .

[0035] The ribs 5 are also reinforced concrete structures, and the ribs 5 are integrally cast with the composite slab body 1 .

[0036] like Figure 7 As shown, when multiple prefabricated composite panels are stacked or transported, the ribs 5 of the prefabricated composite panels are supported on the core steel cylinder 201 of the supporting steel cylinder 4. Without the use of external pads or square timbers, direct contact between the surfaces of adjacent composite panels is prevented, thereby avoiding brittle failure of the composite panel body 1.

[0037] During transportation, since the ribs 5 are supported on the supporting steel cylinder 4, the surface of the ribs 5 may be slightly damaged. After the composite board body 1 is installed in place, it can be filled and repaired with plain cement mortar without affecting the overall stress of the composite board body 1.

[0038] After the installation of the composite plate body 1 and the laying of pipelines are completed, the utility model needs to be combined with other load-bearing structures by secondary pouring to ensure the overall load-bearing strength of the composite plate body 1, until the poured concrete covers the upper side of the supporting steel cylinder 4 to prevent the supporting steel cylinder 4 exposed to the outside from rusting.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A prefabricated composite panel, comprising a composite panel body (1), characterized in that: A core barrel assembly (2) and a plurality of prestressed steel bars (3) are pre-buried inside the composite plate body (1); the core barrel assembly (2) is located in the middle of the composite plate body (1), and the prestressed steel bars (3) are distributed around the core barrel assembly (2) at intervals; The core barrel assembly (2) comprises at least three core steel barrels (201) extending forward and backward; The longitudinal cross-section of the core steel cylinder (201) is a hollow regular polygon, and its two ends respectively penetrate the front and rear side surfaces of the laminated plate body (1). The core steel cylinders (201) are arranged in a zigzag shape, and a core steel cylinder (201) is sandwiched between the side walls of two adjacent core steel cylinders (201) at the same height; The prestressed steel bars (3) extend forward and backward, and their ends also extend out of the front and rear side surfaces of the composite plate body (1) respectively.

2. The prefabricated composite panel according to claim 1, characterized in that: The longitudinal cross section of the core steel cylinder (201) is a regular pentagon or a regular hexagon.

3. The prefabricated composite panel according to claim 1 or 2, characterized in that: It also includes two supporting steel cylinders (4) pre-buried in the composite plate body (1), and the two supporting steel cylinders (4) are respectively fixed on the left and right sides of the core cylinder assembly (2); The supporting steel cylinder (4) extends forward and backward, and its two ends respectively penetrate the front and rear side surfaces of the composite plate body (1); the top surface of the supporting steel cylinder (4) extends out of the top surface of the composite plate body (1), and the top surface of the supporting steel cylinder (4) is parallel to the top surface of the composite plate body (1).

4. The prefabricated composite panel according to claim 3, characterized in that: A plurality of ribs (5) extending leftward and rightward are arranged at intervals at the bottom of the composite plate body (1).

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