Prefabricated pre-tensioned prestressed reinforced concrete outer wall concrete hanging plate

Abstract

The utility model discloses a prefabricated pre-tensioned prestressed reinforced concrete outer wall concrete hanging plate which comprises keels and a concrete hanging plate, the number of the keels is two, a plurality of first steel connectors are arranged on the two keels at intervals, a second steel connector is arranged on one side of each first steel connector, the concrete hanging plate is arranged on the two keels, and the second steel connector is arranged on the other side of each first steel connector. The concrete hanging plate is fixed through the second steel corner connector and comprises a rib framework and a concrete plate poured on the rib framework, and light holes are formed in the concrete plate. The concrete hanging plate has the advantages of being simple in structure, reasonable in design, convenient to install, time-saving and labor-saving in installation, meanwhile, the concrete hanging plate is additionally provided with a pre-tensioning prestress structure, the deflection of the concrete blocks is increased, the concrete blocks of the same size can be lightened, the capacity that one hanging plate covers multiple layers can be achieved, and the concrete hanging plate is worthy of being widely applied and popularized.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a precast pretensioned prestressed reinforced concrete external wall concrete hanging board. Background Technique

[0002] At present, in the assembly of houses, the hanging board columns are generally assembled with reference to the "Code for Construction of Building Engineering" DBJ14-032-2004 for the sub-project of concrete prefabricated structure, the installation process of steel structure, and the conventional practices of enterprises. Since the load-bearing frames and wall composite components of integrated houses are mainly divided into two types: light steel and concrete, only two structural forms of bolt connection and welding are adopted in the previous assembly process. Between various components, angle steel is generally used as an auxiliary strengthening connecting plate at their junctions, and then the concrete hanging board column is fixedly connected to the concrete lintel and the steel tie beam through expansion bolts and self-tapping screws respectively.

[0003] At present, the existing structure design of the precast reinforced concrete external wall concrete hanging board is unreasonable, only meeting the requirements of ordinary single-story buildings. If it is a multi-story building, the number of hoisting times must be increased, and it is very difficult to control the gaps between the concrete hanging boards to be consistent, resulting in time-consuming and laborious installation. Therefore, the inventor designed a precast pretensioned prestressed reinforced concrete external wall concrete hanging board. Content of the Utility Model

[0004] The purpose of the utility model is to provide a precast pretensioned prestressed reinforced concrete external wall concrete hanging board, which has the advantages of simple structure, reasonable design, convenient installation, time-saving and labor-saving during installation. At the same time, the concrete hanging board is provided with a pretensioned prestressed structure, which increases the deflection of the concrete block, can make the concrete block of the same size lighter, and can achieve the ability to cover multiple floors with one hanging board, solving the problems raised in the above technical background.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A precast pretensioned prestressed reinforced concrete external wall concrete hanging board, including keels and a concrete hanging board. There are two keels, and a plurality of first steel angle codes are arranged at intervals on both keels. A second steel angle code is arranged on one side of the first steel angle code. The concrete hanging board is arranged on the two keels and fixed by the second steel angle code. The concrete hanging board includes a steel bar framework and a concrete slab cast on the steel bar framework. Light-transmitting holes are opened on the concrete slab.

[0006] Preferably, a connecting steel plate is welded to any end of the keel, and a reinforced concrete corbel is cast on the connecting steel plate.

[0007] Preferably, screw holes are opened on both the first steel angle code and the second steel angle code, and galvanized layers are provided on both the first steel angle code and the second steel angle code.

[0008] Preferably, the rib framework includes two vertically arranged ribs arranged in parallel and a plurality of horizontal ribs arranged at intervals on the two vertically arranged ribs. Nuts are provided at the joints of the plurality of horizontal ribs and the two vertically arranged ribs, and a plurality of thin ribs are intertwined between two adjacent horizontal ribs.

[0009] Preferably, the nuts are embedded in the concrete slab, and the nuts form the lifting points of the precast pretensioned reinforced concrete exterior wall concrete hanging slab.

[0010] Preferably, the cross-section of the concrete slab gradually thins from the middle to both ends and forms an arch shape.

[0011] Preferably, a plurality of light-transmitting holes are provided, and the plurality of light-transmitting holes are evenly distributed on the concrete slab.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The present utility model provides a precast pretensioned reinforced concrete exterior wall concrete hanging slab, which includes a keel and a concrete hanging slab. The overall structure is simple and reasonably designed. There are two keels, and a plurality of first steel angle codes are arranged at intervals on both keels. A second steel angle code is arranged on one side of the first steel angle code. The first steel angle code is used to fix to the building exterior wall, and the second steel angle code is used to fix to the concrete hanging slab. At the same time, the second steel angle code can also play a positioning role to achieve the purpose of convenient installation. The concrete hanging slab in this embodiment includes a rib framework and a concrete slab cast on the rib framework. The cross-section of the concrete slab gradually thins from the middle to both ends and forms an arch shape. Such a design can reduce the weight of the concrete hanging slab, increase its stiffness, add pre-tension, increase the deflection of the concrete member, and extend its service life. By embedding nuts in the concrete slab, the nuts form the lifting points of the precast pretensioned reinforced concrete exterior wall concrete hanging slab, which is convenient for its lifting, saving time and effort during lifting. At the same time, it can be fixed by the nuts during installation, improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view structural schematic diagram of the present utility model;

[0015] Figure 2 is the structural diagram of the keel of the present utility model;

[0016] Figure 3 is the perspective view of the concrete hanging slab of the present utility model;

[0017] Figure 4 is the present utility model Figure 3 the sectional view taken along A-A in;

[0018] Figure 5 is the present utility model Figure 3 the enlarged view of B in.

[0019] The reference numerals and names in the figures are as follows:

[0020] 1. Keel; 11. First steel angle code; 12. Second steel angle code; 13. Connecting steel plate; 14. Reinforced concrete corbel; 15. Screw hole; 2. Concrete hanging plate; 21. Reinforcement cage; 211. Vertical reinforcement; 212. Horizontal reinforcement; 213. Nut; 214. Thin reinforcement; 22. Concrete slab; 23. Light-transmitting hole. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0023] In the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0024] Please refer to Figure 1, an embodiment provided by the present utility model: a precast pretensioned prestressed reinforced concrete exterior wall concrete hanging board, the precast pretensioned prestressed reinforced concrete exterior wall concrete hanging board includes a keel 1 and a concrete hanging board 2, the overall structure is simple and the design is reasonable. There are two keels 1, and the two keels 1 are arranged in parallel, and the concrete hanging board 2 is arranged on the two keels 1.

[0025] Please refer to Figure 2 , a plurality of first steel angle codes 11 are arranged at intervals on both of the two keels 1 in the figure. A second steel angle code 12 is arranged on one side of the first steel angle code 11. Among them, the plurality of first steel angle codes 11 are used to fix to the building exterior wall, and the second steel angle code 12 is used to fix to the concrete hanging board 2. A connecting steel plate 13 is welded at any end of the keel 1, and a reinforced concrete corbel 14 is cast on the connecting steel plate 13. Such a design facilitates the fixing of the end of the keel 1 with the reinforced concrete corbel 14 to the building wall, and the other end is used to splice the precast pretensioned prestressed reinforced concrete exterior wall concrete hanging board.

[0026] Specifically, screw holes 15 are opened on both the first steel angle code 11 and the second steel angle code 12, and galvanized layers are provided on both the first steel angle code 11 and the second steel angle code 12.

[0027] Please refer to Figure 3 , the concrete hanging board 2 in the figure includes a rib cage 21 and a concrete slab 22 cast on the rib cage 21. Light-transmitting holes 23 are opened on the concrete slab 22. The high-precision rib cage 21 is used as a steel formwork to achieve the lightweight of precast components. At the same time, the rib cage 21 can be welded according to actual size requirements, and the size can be large or small. The surface of the concrete slab 22 is smooth and does not require secondary treatment. In specific implementation, the concrete hanging board 2 can be made into various shapes and colors to meet the diverse use requirements of users.

[0028] Specifically, the rib cage 21 includes two parallel vertical ribs 211 and a plurality of horizontal ribs 212 arranged at intervals on the two vertical ribs 211. Nuts 213 are provided at the connection parts of the plurality of horizontal ribs 212 and the two vertical ribs 211. The nuts 213 are embedded in the concrete slab 22, and the nuts 213 form the lifting points of the precast pretensioned prestressed reinforced concrete exterior wall concrete hanging board. A plurality of thin ribs 214 are interwoven between two adjacent horizontal ribs 212. In this embodiment, the vertical ribs 211 are formed by hinging a plurality of steel bars.

[0029] Specifically, the cross-section of the concrete slab 22 gradually thins from the middle to both ends and forms an arch shape. Such a design can improve the pre-tension of the concrete hanging board 2 and extend its service life.

[0030] Specifically, a plurality of light-transmitting holes 23 are provided, and the plurality of light-transmitting holes 23 are evenly distributed on the concrete slab 22.

[0031] Please refer to again Figures 1 to 3 When installing the precast pretensioned prestressed reinforced concrete external wall concrete hanging board in the present utility model, first fix the first steel angle code 11 on the two keels 1 to the beam of the wall body, then lift the concrete hanging board 2 by a crane, and fix it on the two keels 1 through the second steel angle code 12. During hoisting, the lifting rope is installed on the nut 213 to achieve the purpose of convenient hoisting. At the same time, the nut 213 can also play a positioning role, saving time and effort during installation. During specific implementation, precast pretensioned prestressed reinforced concrete external wall concrete hanging boards of various sizes can be precast according to the building external wall to achieve the purpose of facilitating diverse use by users.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A prefabricated prestressed reinforced concrete exterior wall concrete hanging board, characterized in that: The invention comprises a keel (1) and a concrete hanging plate (2), wherein two keels (1) are provided, a plurality of first steel angle brackets (11) are arranged at intervals on the two keels (1), a second steel angle bracket (12) is arranged on one side of the first steel angle bracket (11), the concrete hanging plate (2) is arranged on the two keels (1) and is fixed by the second steel angle bracket (12), and the concrete hanging plate (2) comprises a rib frame (21) and a concrete plate (22) cast on the rib frame (21), and a light-transmitting hole (23) is opened on the concrete plate (22).

2. The prefabricated prestressed reinforced concrete exterior wall concrete hanging board according to claim 1, characterized in that: A connecting steel plate (13) is welded to either end of the keel (1), and a reinforced concrete corbel (14) is cast on the connecting steel plate (13).

3. The prefabricated prestressed reinforced concrete exterior wall concrete hanging board according to claim 1, characterized in that: The first steel angle bracket (11) and the second steel angle bracket (12) are both provided with screw holes (15), and the first steel angle bracket (11) and the second steel angle bracket (12) are both provided with a galvanized layer.

4. The prefabricated prestressed reinforced concrete exterior wall concrete hanging board according to claim 1, characterized in that: The rib frame (21) comprises two vertical ribs (211) arranged in parallel and a plurality of transverse ribs (212) arranged at intervals on the two vertical ribs (211); nuts (213) are provided at the connection points between the plurality of transverse ribs (212) and the two vertical ribs (211); and a plurality of thin ribs (214) are interlaced between two adjacent transverse ribs (212).

5. The prefabricated prestressed reinforced concrete exterior wall concrete hanging board according to claim 4, characterized in that: The nut (213) is pre-buried in the concrete slab (22), and the nut (213) forms a hoisting point for the prefabricated pre-tensioned prestressed reinforced concrete exterior wall concrete hanging slab.

6. The prefabricated prestressed reinforced concrete exterior wall concrete hanging board according to claim 1, characterized in that: The cross section of the concrete slab (22) gradually becomes thinner from the middle to both ends, forming a bow and arrow shape.

7. The prefabricated prestressed reinforced concrete exterior wall concrete hanging board according to claim 1, characterized in that: A plurality of light-transmitting holes (23) are provided, and the plurality of light-transmitting holes (23) are evenly distributed on the concrete slab (22).

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