Steel framework of overhanging horizontal outer net of high-rise housing

Abstract

The utility model discloses a steel skeleton of a cantilever horizontal outer net of a high-rise housing, which comprises two parallel I-beams, galvanized steel pipes are respectively welded at the tops of one ends of the I-beams, inclined steel pipes are inserted in the galvanized steel pipes, the inclined steel pipes are fixed in the galvanized steel pipes through bolts, first transverse steel pipes are arranged at the tops of the two I-beams at intervals, and second transverse steel pipes are arranged at the tops of the two I-beams at intervals. And a plurality of second transverse steel pipes are arranged on the two inclined steel pipes at intervals, steel bar lantern rings are fixedly welded to the top ends of the inclined steel pipes correspondingly, and an I-shaped steel connecting plate is fixedly welded to one end of the I-shaped steel principle galvanized steel pipe and fixed to a lower-layer building beam through split bolts. The steel framework of the cantilever horizontal outer net can be assembled outdoors, assembling is easy, convenient and rapid, the number of used steel pipe materials is small, and the material cost and the labor cost are saved. The overhanging steel framework horizontal overhanging net can be overhung and hoisted through a structural beam or a structural outer wall, indoor installation is not needed, and secondary structural construction and fine decoration are not affected.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated building construction, and specifically relates to a steel frame for a cantilevered horizontal external net of a high-rise residential building. Background Technology

[0002] Prefabricated modular buildings have garnered widespread attention from governments and businesses due to their ability to save significant amounts of raw materials and achieve industrialized and standardized construction. A key feature of prefabricated modular construction is its ability to eliminate the need for scaffolding on-site. In contrast, traditional construction methods that involve scaffolding not only waste substantial amounts of raw materials and increase construction costs, but also occupy significant construction space and have a considerable environmental impact.

[0003] Although prefabricated buildings do not require additional scaffolding for protection during construction, the risk of falling objects increases as construction progresses and the building's height increases. To prevent falling objects and construction debris from affecting the safety of personnel on the construction site, appropriate safety measures must be implemented to mitigate these hazards.

[0004] In prefabricated building construction, horizontal cantilevered netting typically uses traditional indoor steel pipe cantilever netting. This method incurs significant costs in terms of steel pipe materials and labor, and the assembly of the steel pipes is complex. A major drawback of traditional horizontal cantilevered netting is that the placement of the indoor assembled steel pipes affects the secondary structure construction, leading to increased construction costs. Utility Model Content

[0005] This utility model provides a steel frame for a cantilevered horizontal external net of a high-rise residential building, in order to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a steel frame for a cantilevered horizontal external mesh of a high-rise residential building, comprising two parallel I-beams, with galvanized steel pipes welded to the top of one end of each I-beam, the galvanized steel pipes forming an obtuse angle greater than 90° with the I-beams, and inclined steel pipes inserted inside the galvanized steel pipes, the inclined steel pipes being fixed inside the galvanized steel pipes with bolts, a first transverse steel pipe spaced apart at the top of the two I-beams, and several second transverse steel pipes spaced apart on the two inclined steel pipes, with reinforcing bar collars fixedly welded to the top of each inclined steel pipe, and an I-beam connecting plate fixedly welded to one end of each galvanized steel pipe of the I-beam, the I-beam connecting plate being fixed to the lower building beam by tie bolts, and a double-layer large-mesh mesh connected between the reinforcing bar collars and the upper building beam.

[0007] By adopting the above technical solution, the steel frame of the cantilevered horizontal external netting of this application can be assembled outdoors, and the assembly is simple, convenient, and quick. It uses less steel pipe material, saving material and labor costs. The cantilevered horizontal external netting can utilize structural beams or exterior walls for cantilevering and can be hoisted for installation, eliminating the need for indoor installation and not affecting secondary structural construction or interior decoration. It allows for comprehensive, fully integrated construction, accelerating the construction progress and thus saving costs. Because the cantilevered horizontal external netting is fixed to the structural beams with high-strength bolts, the installation is more secure and safer.

[0008] Preferably, the angle between the inclined steel pipe and the I-beam is 120-130°.

[0009] By adopting the above technical solution, the angle is reasonable, which is conducive to the connection of double-layer large-mesh netting and the structure has high stability.

[0010] Preferably, the second transverse steel pipe is arranged on both sides of the oblique steel pipe, and the second transverse steel pipe and the oblique steel pipe are connected by fasteners.

[0011] By adopting the above technical solution, the structure is robust, easy to manufacture and connect, and easy to assemble and disassemble.

[0012] Preferably, an additional steel pipe is provided between the middle part of the I-beam and the middle part of the inclined steel pipe, and the additional steel pipe is welded to the I-beam and the inclined steel pipe respectively.

[0013] By adopting the above technical solutions, the overall structural strength was improved, structural stability was ensured, and construction safety was guaranteed.

[0014] Preferably, the length of the two I-beams is no more than 1700mm, the spacing between the I-beams is no more than 500mm, and the length of the inclined steel pipe is 2500mm.

[0015] By adopting the above technical solutions, the strength of the structure can be guaranteed.

[0016] Preferably, the spacing between the first transverse steel pipes is no more than 300mm, the spacing between the second transverse steel pipes is no more than 300mm, and the length of the galvanized steel pipe is no less than 250mm.

[0017] By adopting the above technical solutions, we can achieve excellent structural strength and ensure construction quality.

[0018] The beneficial effects of this utility model are as follows: The steel frame of the cantilevered horizontal external netting of this application can be assembled outdoors, and the assembly is simple, convenient, and quick. It uses less steel pipe material, saving material and labor costs. The cantilevered horizontal external netting can utilize structural beams or exterior walls for cantilever construction, requiring only hoisting. It does not require indoor installation and will not affect secondary structural construction or interior decoration. It allows for comprehensive, fully integrated construction, accelerating the construction progress and thus saving costs. Because the cantilevered horizontal external netting is fixed to the structural beams with high-strength bolts, the installation is more secure and safer.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention; the main objectives and other advantages of this invention may be realized and obtained by means of the methods particularly pointed out in the description. Attached Figure Description

[0020] Figure 1 This is a side view schematic diagram of the steel frame structure according to an embodiment of the present utility model;

[0021] Figure 2 This is a top view schematic diagram of the steel frame structure according to an embodiment of the present utility model;

[0022] Figure 3 This is a side view schematic diagram of the construction structure of the steel frame according to an embodiment of this utility model;

[0023] Figure 4 This is a top view schematic diagram of the construction structure of the steel frame according to an embodiment of this utility model.

[0024] Reference numerals: 1. I-beam; 2. Galvanized steel pipe; 3. Diagonal steel pipe; 4. First transverse steel pipe; 5. Second transverse steel pipe; 6. Rebar collar; 7. I-beam connecting plate; 8. Tie rod; 9. Lower building beam; 10. Upper building beam; 11. Double-layer large-mesh mesh; 12. Additional steel pipe. Detailed Implementation

[0025] The technical solution of this utility model will be described in detail below through embodiments. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of this utility model, and should not be construed as limiting the technical solution of this utility model.

[0026] Combination Figure 1-4A steel frame for a cantilevered horizontal external mesh of a high-rise residential building includes two parallel I-beams 1. Galvanized steel pipes 2 are welded to the top of one end of each I-beam 1, forming an obtuse angle greater than 90° with the I-beams 1. An inclined steel pipe 3 is inserted inside the galvanized steel pipe 2, and the inclined steel pipe 3 is fixed inside the galvanized steel pipe 2 with bolts. A first transverse steel pipe 4 is spaced apart at the top of the two I-beams 1. Several second transverse steel pipes 5 are spaced apart on the two inclined steel pipes 3. A reinforcing bar collar 6 is fixedly welded to the top of each inclined steel pipe 3. An I-beam connecting plate 7 is fixedly welded to one end of each I-beam 1 and the galvanized steel pipe 2. The I-beam connecting plate 7 is fixed to the lower building beam 9 by tie bolts 8. A double-layer large-mesh mesh 11 is connected between the reinforcing bar collar 6 and the upper building beam 10.

[0027] The cantilevered horizontal external netting steel frame of this application can be assembled outdoors, and the assembly is simple, convenient, and quick. It uses less steel pipe material, saving on material and labor costs. The cantilevered horizontal external netting steel frame can be cantilevered from structural beams or exterior walls and can be hoisted for installation, eliminating the need for indoor installation and not affecting secondary structural construction or interior finishing. It allows for fully integrated construction, accelerating the construction progress and thus saving costs. Because the cantilevered horizontal external netting steel frame is fixed to the structural beams with high-strength bolts, the installation is more secure and safer.

[0028] The angle between the inclined steel pipe 3 and the I-beam 1 is 120-130°, which is reasonable and facilitates the connection of the double-layer large-mesh net 11, resulting in high structural stability.

[0029] The second transverse steel pipe 5 is arranged on both sides of the oblique steel pipe 3. The second transverse steel pipe 5 and the oblique steel pipe 3 are connected by fasteners, which makes the structure sturdy, easy to manufacture and connect, and easy to disassemble and assemble.

[0030] An additional steel pipe 12 is provided between the middle of the I-beam 1 and the middle of the inclined steel pipe 3. The additional steel pipe 12 is welded to the I-beam 1 and the inclined steel pipe 3 respectively, which improves the overall structural strength, ensures structural stability, and guarantees construction safety.

[0031] The length of the two I-beams 1 is no more than 1700mm, the spacing between the I-beams 1 is no more than 500mm, and the length of the inclined steel pipe 3 is 2500mm, so that the strength of the structure can be guaranteed.

[0032] The spacing between the first transverse steel pipes 4 and the second transverse steel pipes 5 is no more than 300mm. The length of the galvanized steel pipe 2 is no less than 250mm, which can provide good structural strength and ensure construction quality.

[0033] The construction process is as follows:

[0034] Step 1: Steel Frame Design: A steel frame is constructed using two I-beams (1) and steel pipes. The I-beams (1) can be either 16# or 18#. The length of each I-beam should be ≤1700mm, and the spacing between the two I-beams should be ≤500mm. The I-beams are cantilevered and connected to the structure using high-strength bolts. Steel pipes are welded to the I-beams, with a spacing of ≤300mm between the pipes. The spacing between a set of cantilevered steel frames is ≤10m. Based on the positioning of the steel frames, steel wire ropes and mesh netting are used to connect the frames into a unified whole. The mesh netting is tied to the steel wire ropes and connected to the structure. The mesh netting is constructed with a higher outer edge and a lower inner edge, forming a complete horizontal cantilevered steel frame.

[0035] Step 2, Steel Frame Processing: Cut and fabricate the I-beam 1 according to the design dimensions of the steel frame. The length of the I-beam 1 should not exceed 1700mm. Weld a DN60 galvanized steel pipe 2 with a length of not less than 250mm to the end of the I-beam 1. The weld must be full and meet the first-class weld standard. A hole is drilled at the top end of the DN60 galvanized steel pipe 2.

[0036] Step 3: Steel Frame Assembly: Two I-beams 1, with a diameter not exceeding 500mm, are assembled and fully welded to the first transverse steel pipe 4 on both sides. The welding spacing of the first transverse steel pipe 4 is not greater than 300mm. A DN60 galvanized steel pipe 2 is inserted into a diagonal steel pipe 3. The diagonal steel pipe 3 and the DN60 galvanized steel pipe 2 are connected by screws, and both ends are fixed with double nuts. The diagonal steel pipe 3 is connected to the second transverse steel pipe 5 using fasteners. The ends of the diagonal steel pipe 3 are fully welded with reinforcing bar collars 6. An additional steel pipe 12 is set between the diagonal steel pipe 3 and the I-beam 1 and welded firmly at both ends. All welds must be full.

[0037] Step 4: Steel Frame Hoisting and Installation: During the main construction, according to the horizontal cantilever netting plan, sleeves are pre-installed on the structure. The cantilever steel frame is hoisted once the main structure reaches the required strength. A tower crane is used to hoist the assembled cantilever steel frame. During hoisting, the four corners of the cantilever steel frame are used to lift it to the installation position, and then it is slowly positioned. The steel frame is manually and slowly connected to the pre-reserved holes. Once the stability is confirmed, the tower crane ropes are released.

[0038] Step 5: Installation of horizontal cantilevered mesh of steel frame: The large mesh can be installed only after the steel frame is installed. When installing the large mesh, according to the spacing between the two sets of steel frames, use steel wire ropes to tie the large mesh into a square. Use a tower crane to hoist the four corners of the square large mesh. Fix two corners of the square large mesh to the steel bar collars 6 at the top of the two sets of steel frames, and fix the other two corners to the structure respectively. Install two layers of large mesh in the same way.

[0039] Step Six: Dismantling of the Cantilevered Steel Frame: When dismantling the cantilevered steel frame, first remove the wire ropes and large mesh netting, then use a tower crane to assist in the hoisting of the cantilevered steel frame. After removing the high-strength bolts, the entire cantilevered steel frame is hoisted and dismantled to the ground.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel frame for a cantilevered horizontal external netting system in a high-rise residential building, characterized in that: It includes two side-by-side I-beams (1), with galvanized steel pipes (2) welded to the top of one end of each I-beam (1). The galvanized steel pipes (2) and the I-beams (1) form an obtuse angle greater than 90°. An oblique steel pipe (3) is inserted into the galvanized steel pipe (2). The oblique steel pipe (3) is fixed inside the galvanized steel pipe (2) by bolts. A first transverse steel pipe (4) is spaced apart at the top of the two I-beams (1). Several second transverse steel pipes (5) are spaced apart on the two oblique steel pipes (3). A steel bar collar (6) is fixedly welded to the top of each oblique steel pipe (3). An I-beam connecting plate (7) is fixedly welded to one end of the galvanized steel pipe (2) of each I-beam (1). The I-beam connecting plate (7) is fixed to the lower building beam (9) by tie bolts (8). A double-layer mesh (11) is tied between the steel bar collar (6) and the upper building beam (10).

2. The steel frame of a cantilevered horizontal external net for a high-rise residential building according to claim 1, characterized in that: The angle between the inclined steel pipe (3) and the I-beam (1) is 120-130°.

3. The steel frame of a cantilevered horizontal external net for a high-rise residential building according to claim 2, characterized in that: The second transverse steel pipe (5) is arranged on both sides of the oblique steel pipe (3), and the second transverse steel pipe (5) and the oblique steel pipe (3) are connected by fasteners.

4. The steel frame of a cantilevered horizontal external net for a high-rise residential building according to claim 3, characterized in that: An additional steel pipe (12) is provided between the middle of the I-beam (1) and the middle of the inclined steel pipe (3), and the additional steel pipe (12) is welded to the I-beam (1) and the inclined steel pipe (3) respectively.

5. The steel frame of a cantilevered horizontal external net for a high-rise residential building according to claim 4, characterized in that: The length of the two I-beams (1) is no more than 1700mm, the spacing between the I-beams (1) is no more than 500mm, and the length of the inclined steel pipe (3) is 2500mm.

6. The steel frame of a cantilevered horizontal external netting for a high-rise residential building according to claim 5, characterized in that: The spacing of the first transverse steel pipe (4) is no more than 300mm, the spacing of the second transverse steel pipe (5) is no more than 300mm, and the length of the galvanized steel pipe (2) is no less than 250mm.

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