Hard protection structure of precast beam

Abstract

The utility model discloses a precast beam hard protection structure which comprises angle steel and a square tube, the angle steel comprises a fixed section and a cantilever section connected with the fixed section, the fixed section is located on the beam surface of a precast beam, and the length of the fixed section is 3 / 4 of the total length of the angle steel; the square tube is arranged at the end, away from the fixed section, of the cantilever section, and a connecting piece is arranged at the upper end of the square tube and used for installing a hard protection plate. By means of the design, the hard protection structure for the precast beam allows the angle steel, the square tube and the connecting piece to be installed in advance on the ground before the precast beam is hoisted, and the angle steel, the square tube and the connecting piece are fixed to the precast beam. Thus, after the precast beam is hoisted in place, the edge protection is in place, the risks of high-place operation and edge operation of workers are greatly reduced, the difficulty of edge protection installation is lowered, it is ensured that constructors are in a safe protection environment in the whole construction process, and therefore the occurrence rate of safety accidents is effectively reduced; and the construction efficiency and the overall safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated building construction, and more specifically, to a hard protection structure for precast beams. Background Art

[0002] Prefabricated buildings are based on the model of prefabricated production in component factories and on-site prefabricated installation, characterized by standardized design, factory production, assembled construction, integrated decoration, and information management. They integrate various business fields from R & D design, production manufacturing, on-site assembly, etc., to achieve the sustainable development of building products with energy conservation, environmental protection, and maximized full-cycle value.

[0003] The term "assembly" was first used in the mechanical field, referring to the process of assembling parts according to specified technical requirements and making them into qualified products through debugging and inspection. Simply put, it is the process of assembling parts into a whole. Applied to the construction field, prefabricated buildings can be simply understood as buildings assembled directly on-site from various parts of the building. Its most basic components are columns, beams, floor slabs, stairs, etc. To achieve on-site assembly of building components, the prerequisite is that these components must be pre-produced in the factory, abbreviated as precast. Therefore, in many cases, prefabricated buildings are also called precast buildings or industrialized buildings.

[0004] In the construction process of prefabricated buildings, the installation of edge protection is often carried out after the installation of precast beams and other structural components. Specifically, the construction sequence of prefabricated buildings is as follows: first install steel columns and steel beams, then pour floor slab concrete. The edge protection structure generally needs to be erected after the floor slab concrete is poured, and the edge protection device cannot be set before the floor slab is poured, so it cannot play an effective protection role. Moreover, the edge protection structure is fixed to the floor slab through expansion bolts, which is likely to cause secondary damage to the floor slab and cannot guarantee the construction safety of this floor. In addition, due to the complex and changeable high-altitude operation environment, there are also many difficulties in installing edge protection, such as difficult to find fixed points and difficult to ensure installation accuracy, which further increases the construction difficulty and safety risks. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a hard protection structure for precast beams, which not only reduces the difficulty of installing edge protection, ensures that construction workers are in a safe protection environment throughout the construction process, thus effectively reducing the incidence of safety accidents and improving construction efficiency and overall safety.

[0006] The technical solution of the utility model is as follows: A hard protection structure for precast beams, comprising:

[0007] Angle steel, the angle steel includes a fixed section and a cantilever section connected to the fixed section, the fixed section is located on the beam surface of the precast beam, and the length of the fixed section is 3 / 4 of the total length of the angle steel;

[0008] Square pipe, the square pipe is arranged at one end of the cantilever section away from the fixed section, and a connecting piece is arranged at the upper end of the square pipe, and the connecting piece is used for installing a hard protection board.

[0009] Further, a plurality of expansion screws arranged at equal intervals are installed on the fixed section, each expansion screw passes through the fixed section and is embedded in the precast beam, and the distance between adjacent two expansion screws is 50mm - 70mm.

[0010] Further, from the end of the fixed section away from the cantilever section towards the direction close to the cantilever section, there are 3 expansion screws, and the 3 expansion screws are respectively the first expansion screw, the second expansion screw and the third expansion screw, and the distance between the first expansion screw and the end of the fixed section away from the cantilever section is 30mm.

[0011] Further, the expansion screw is an M8 expansion screw.

[0012] Further, a first galvanized iron sheet is arranged at the lower part of the cantilever section, and the first galvanized iron sheet is fixedly connected to the cantilever section through bolts.

[0013] Further, there are 3 bolts, from left to right, the bolts are respectively the first bolt, the second bolt and the third bolt, and the distance between the first bolt and the second bolt is equal to the distance between the second bolt and the third bolt.

[0014] Further, a diagonal brace is arranged below the cantilever section, one end of the diagonal brace is fixedly connected to the second bolt, and the other end of the diagonal brace is fixedly connected to the precast beam through a fourth expansion screw.

[0015] Further, a second galvanized iron sheet is arranged on the cantilever section, the second galvanized iron sheet is arranged vertically, and the second galvanized iron sheet is fixedly connected to the square pipe.

[0016] Further, the thicknesses of both the first galvanized iron sheet and the second galvanized iron sheet are 2mm.

[0017] Further, the square pipe and the cantilever section are fixedly connected by a welding process.

[0018] For the utility model according to the above scheme, its beneficial effects are as follows:

[0019] (1) A precast beam rigid protection structure provided by the present utility model includes an angle steel and a square tube. The angle steel includes a fixed section and a cantilever section connected to the fixed section. The fixed section is located on the beam surface of the precast beam, and the length of the fixed section is 3 / 4 of the total length of the angle steel. The square tube is arranged at one end of the cantilever section away from the fixed section, and a connecting piece is arranged at the upper end of the square tube for installing a rigid protection board. With such a design, the precast beam rigid protection structure allows the installation of the angle steel, the square tube and the connecting piece to be completed in advance on the ground and fixed to the precast beam before the precast beam is hoisted. In this way, when the precast beam is hoisted in place, the edge protection is already in place, greatly reducing the risks of high-altitude work and edge work for workers, not only reducing the difficulty of installing edge protection, ensuring that construction personnel are in a safe protection environment throughout the construction process, thereby effectively reducing the incidence of safety accidents and improving construction efficiency and overall safety.

[0020] (2) In a precast beam rigid protection structure provided by the present utility model, the length of the fixed section of the angle steel is set to 3 / 4 of the total length, ensuring that there is sufficient contact area between the angle steel and the precast beam, so that the angle steel can be firmly fixed on the beam surface of the precast beam through expansion bolts. With such a design, the adhesion between the angle steel and the beam surface is enhanced, making the entire protection structure more stable and not likely to loosen or fall off due to external factors (such as wind force, construction vibration, etc.). BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the precast beam rigid protection structure in Embodiment 1 of the present utility model;

[0023] Figure 2 It is a schematic diagram of the partial structure of the precast beam rigid protection structure in Embodiment 1 of the present utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the connecting piece in Embodiment 1 of the present utility model;

[0025] Figure 4 It is a schematic diagram of the overall structure of the precast beam rigid protection structure in Embodiment 2 of the present utility model;

[0026] Figure 5 It is a schematic diagram of the partial structure of the precast beam rigid protection structure in Embodiment 2 of the present utility model.

[0027] In the figure, 1 is an angle steel; 11 is a fixed section; 12 is a cantilever section; 2 is a square pipe; 3 is a precast beam; 4 is a connecting piece; 41 are holes; 5 is a rigid protection plate; 6 are expansion screws; 61 is the first expansion screw; 62 is the second expansion screw; 63 is the third expansion screw; 71 is the first galvanized iron sheet; 72 is the second galvanized iron sheet; 8 are bolts; 81 is the first bolt; 82 is the second bolt; 83 is the third bolt; 9 is a diagonal brace; 10 is the fourth expansion screw; D is the distance between the first expansion screw and the right end of the fixed section. Specific embodiments

[0028] The following further describes in detail the embodiments of the present utility model in conjunction with the accompanying drawings and examples. The detailed description and drawings of the following examples are used to exemplarily illustrate the principle of the present utility model, but cannot be used to limit the scope of the present utility model, that is, the present utility model is not limited to the described embodiments.

[0029] For a better understanding of the present utility model, the following further describes the present utility model in conjunction with the accompanying drawings and embodiments:

[0030] Embodiment 1

[0031] See Figures 1 to 3 As shown, a rigid protection structure for a precast beam provided in Embodiment 1 of the present utility model includes an angle steel 1 and a square pipe 2.

[0032] In this Embodiment 1, the angle steel 1 includes a fixed section 11 and a cantilever section 12 connected to the fixed section 11. The fixed section 11 is located on the beam surface of the precast beam 3, and the length of the fixed section 11 is 3 / 4 of the total length of the angle steel 1; the square pipe 2 is provided at one end of the cantilever section 12 away from the fixed section 11, and a connecting piece 4 is provided at the upper end of the square pipe 2. The connecting piece 4 is used to install the rigid protection plate 5. With such a design, the rigid protection structure for the precast beam allows the installation of the angle steel 1, the square pipe 2, and the connecting piece 4 to be completed in advance on the ground before the precast beam 3 is hoisted and fixed to the precast beam 3. In this way, when the precast beam 3 is hoisted in place, the edge protection is already in place, greatly reducing the risks of high-altitude work and edge work for workers, not only reducing the difficulty of installing edge protection, ensuring that construction workers are in a safe protection environment throughout the construction process, thereby effectively reducing the incidence of safety accidents and improving construction efficiency and overall safety.

[0033] In this Embodiment 1, the connecting piece 4 has 4 reserved holes 41 for installing the rigid protection plate 5.

[0034] An anti - hard - structure for precast beams provided in Embodiment 1 of the utility model. The length of the fixed section 11 of the angle steel 1 is set to 3 / 4 of the total length, ensuring sufficient contact area between the angle steel 1 and the precast beam 3, so that the angle steel 1 can be firmly fixed on the beam surface of the precast beam 3 through expansion bolts 6. With such a design, the adhesion between the angle steel 1 and the beam surface is enhanced, making the entire protective structure more stable and not easily loosened or detached due to external factors (such as wind force, construction vibration, etc.).

[0035] See Figure 1 As shown, a plurality of expansion bolts 6 arranged at equal intervals are installed on the fixed section 11. Each expansion bolt 6 passes through the fixed section 11 and is embedded in the precast beam 3. The distance between two adjacent expansion bolts 6 is 50 mm - 70 mm. With such a design, multi - point fixation of the angle steel 1 is achieved, which can significantly increase the connection strength between the angle steel 1 and the precast beam 3, preventing the angle steel 1 from displacing or loosening when stressed. Secondly, the equally - spaced expansion bolts 6 make the force on the angle steel 1 uniform on the fixed section 11, reducing the stress concentration phenomenon, thereby improving the stability of the overall structure.

[0036] In this Embodiment 1, the distance between two adjacent expansion bolts 6 is preferably 70 mm. This spacing setting not only ensures a sufficient number of fixing points but also avoids the increase in construction difficulty and cost caused by over - dense installation. At the same time, an appropriate spacing is also beneficial to the uniform distribution and force balance of the expansion bolts 6 in the concrete.

[0037] See Figure 2 As shown, from the end of the fixed section 11 far from the cantilever section 12 towards the direction close to the cantilever section 12, there are 3 expansion bolts 6. The 3 expansion bolts 6 are the first expansion bolt 61, the second expansion bolt 62, and the third expansion bolt 63 respectively. The distance between the first expansion bolt 61 and the end of the fixed section 11 far from the cantilever section 12 is 30 mm. In this Embodiment 1, see Figure 2 As shown, the end of the fixed section 11 far from the cantilever section 12 is the right end of the fixed section 11, that is, the distance D between the first expansion bolt 61 and the right end of the fixed section 11 is 30 mm.

[0038] In this Embodiment 1, the expansion bolt 6 is an M8 expansion bolt. Specifically, the M8 expansion bolt has good load - bearing capacity and tensile strength. In the installation of the anti - hard - structure for precast beams, using M8 expansion bolts can ensure a firm connection between the protective structure and the precast beam 3, preventing loosening or detachment due to factors such as wind force and construction load.

[0039] See Figure 2As shown, a first galvanized iron sheet 71 is provided below the cantilever section 12. The first galvanized iron sheet 71 is fixedly connected to the cantilever section 12 by bolts 8. In this Embodiment 1, there are 2 bolts 8, and the 2 bolts 8 are respectively inserted into the first galvanized iron sheet 71 and the cantilever section 12 to ensure the firmness of the installation between the first galvanized iron sheet 71 and the cantilever section 12.

[0040] In this Embodiment 1, a second galvanized iron sheet 72 is provided on the cantilever section 12. The second galvanized iron sheet 72 is vertically arranged and is fixedly connected to the square pipe 2. In this Embodiment 1, the square pipe 2 is fixedly connected to the cantilever section 12 by a welding process. Such a design can enhance the firmness of the installation of the square pipe 2.

[0041] Specifically, the thicknesses of both the first galvanized iron sheet 71 and the second galvanized iron sheet 72 are 2 mm.

[0042] Embodiment 2

[0043] Different from Embodiment 1, as shown in Figures 4 to 5 In this Embodiment 2, there are 3 bolts 8 provided. From left to right, the bolts 8 are respectively the first bolt 81, the second bolt 82, and the third bolt 83. The distance between the first bolt 81 and the second bolt 82 is equal to the distance between the second bolt 82 and the third bolt 83. The first bolt 81, the second bolt 82, and the third bolt 83 are respectively inserted into the first galvanized iron sheet 71 and the cantilever section 12 to ensure the firmness of the installation between the first galvanized iron sheet 71 and the cantilever section 12.

[0044] In this Embodiment 2, a diagonal brace 9 is provided below the cantilever section 12. One end of the diagonal brace 9 is fixedly connected to the second bolt 82, and the other end of the diagonal brace 9 is fixedly connected to the precast beam 3 by a fourth expansion screw 10. The diagonal brace 9 serves as an additional support structure and forms a triangular support with the cantilever section 12 and the precast beam 3, effectively enhancing the stability and load-bearing capacity of the entire protective structure. Such a design enables the protective structure to better disperse and resist external forces when subjected to external forces, reducing the risk of structural damage caused by excessive single-point stress. Other structures are the same as those in Embodiment 1 and will not be elaborated here.

[0045] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing this application 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 therefore should not be construed as a limitation to this application.

[0046] It should be understood that those of ordinary skill in the art can make improvements or transformations according to the above description, and all such improvements and transformations shall fall within the protection scope of the appended claims of this utility model.

[0047] The above has described the patent of this utility model by way of example in conjunction with the accompanying drawings. Obviously, the implementation of the patent of this utility model is not limited by the above methods. As long as various improvements are made by adopting the method concept and technical solution of the patent of this utility model, or the concept and technical solution of the patent of this utility model are directly applied to other occasions without improvement, they are all within the protection scope of this utility model.

Claims

1. A prefabricated beam hard protection structure, characterized in that: include: An angle steel (1), the angle steel (1) comprising a fixed section (11) and a cantilever section (12) connected to the fixed section (11), the fixed section (11) being located on the beam surface of the prefabricated beam (3), and the length of the fixed section (11) being 3 / 4 of the total length of the angle steel (1); A square tube (2) is arranged on one end of the cantilever section (12) away from the fixed section (11), and a connecting piece (4) is arranged at the upper end of the square tube (2), and the connecting piece (4) is used to install a hard protective plate (5).

2. A prefabricated beam hard protective structure as claimed in claim 1, characterized in that: A plurality of expansion screws (6) arranged at equal intervals are installed on the fixing section (11), each of the expansion screws (6) passes through the fixing section (11) and is buried in the prefabricated beam (3), and the distance between two adjacent expansion screws (6) is 50 mm to 70 mm.

3. A prefabricated beam hard protective structure as claimed in claim 2, characterized in that: From the end of the fixed section (11) away from the cantilever section (12) towards the direction close to the cantilever section (12), three expansion screws (6) are provided, and the three expansion screws (6) are respectively a first expansion screw (61), a second expansion screw (62) and a third expansion screw (63), and the distance between the first expansion screw (61) and the end of the fixed section (11) away from the cantilever section (12) is 30 mm.

4. A prefabricated beam hard protective structure as claimed in claim 2, characterized in that: The expansion screw (6) is an M8 expansion screw.

5. The prefabricated beam hard protection structure according to claim 1, characterized in that: A first galvanized iron sheet (71) is provided at the lower part of the cantilever section (12), and the first galvanized iron sheet (71) is fixedly connected to the cantilever section (12) via bolts (8).

6. A prefabricated beam hard protective structure as claimed in claim 5, characterized in that: The bolts (8) are provided in three numbers. From left to right, the bolts (8) are respectively a first bolt (81), a second bolt (82) and a third bolt (83). The distance between the first bolt (81) and the second bolt (82) is equal to the distance between the second bolt (82) and the third bolt (83).

7. A prefabricated beam hard protective structure as claimed in claim 6, characterized in that: A diagonal bracing member (9) is provided below the cantilever section (12), one end of the diagonal bracing member (9) is fixedly connected to the second bolt (82), and the other end of the diagonal bracing member (9) is fixedly connected to the prefabricated beam (3) via a fourth expansion screw (10).

8. A prefabricated beam hard protective structure as claimed in claim 7, characterized in that: A second galvanized iron sheet (72) is arranged on the cantilever section (12), the second galvanized iron sheet (72) is arranged vertically, and the second galvanized iron sheet (72) is fixedly connected to the square tube (2).

9. A prefabricated beam hard protective structure as claimed in claim 8, characterized in that: The thickness of the first galvanized iron sheet (71) and the thickness of the second galvanized iron sheet (72) are both 2 mm.

10. The prefabricated beam hard protective structure according to claim 1, characterized in that: The square tube (2) and the cantilever section (12) are fixedly connected by a welding process.

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