Modularized prefabricated steel and concrete combined frame structure

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a modular prefabricated steel-concrete combined frame structure which comprises a main body, and a fixed steel beam assembly and a movable steel beam assembly are arranged at the top of the main body. According to the movable steel beam assembly, the bent steel pipes are inserted into the limiting holes in a penetrating mode and matched with locking of the second nuts, the local position of the movable steel beam assembly can be adjusted, the distance between the specified first prefabricated steel beam and the specified third prefabricated steel beam is selected, and the bent steel pipes are adjusted to be inserted and fixed in the limiting holes in different positions; a combined frame structure system of the first prefabricated steel beam, the second prefabricated steel beam, the third prefabricated steel beam and the fourth prefabricated steel beam is utilized, high-strength bolts are used in cooperation to serve as vertical stress components, and industrialized production and use of high-strength concrete materials are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically a modular precast steel-concrete composite frame structure. Background Technology

[0002] Modular building technology has expanded prefabrication technology from 2D to 3D, further improving prefabrication efficiency and demonstrating significant technical and economic advantages. It has also become one of the important directions for my country's current vigorous development of prefabricated buildings. Currently, mainstream modular buildings mainly use steel structures and are generally used in commercial buildings such as hotels and parking lots. However, the fire resistance, insulation, and comfort issues faced by steel structures limit their widespread application.

[0003] Currently, when casting precast steel-concrete composite structures into formwork, it is impossible to control the size of the pour. Fixed modular formwork cannot be used for multiple purposes. Due to the inherent impact of on-site assembly of modules on joint construction, modules cannot be fully connected. Wet work methods for post-cast concrete in beam-column joint areas cannot be eliminated, the quality of components in beam-column joint areas cannot be guaranteed, construction efficiency is reduced, and project construction cycle is delayed. Therefore, a modular precast steel-concrete composite frame structure is needed to improve the above problems. Utility Model Content

[0004] To address the current challenges in casting precast reinforced concrete into formwork, such as the inability to control the pouring size, the limitations of fixed modular formwork for multi-functional use, the inherent impact of on-site assembly of modules on joint construction, the inability to achieve adequate connections between modules, the continued need for wet-work operations involving post-cast concrete in beam-column joint areas, the inability to guarantee the quality of components in beam-column joint areas, reduced construction efficiency, and delayed project construction cycles, this utility model aims to provide a modular precast reinforced concrete composite frame structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A modular precast steel-concrete composite frame structure includes a main body, and a fixed steel beam assembly and a movable steel beam assembly are provided on the top of the main body;

[0007] The main body includes a crossbeam, and a limiting hole is formed inside the crossbeam;

[0008] The fixed steel beam assembly includes a first precast steel beam, the interior of which is provided with high-strength bolts, the bottom of which is threaded with a nut, and the bottom of the first precast steel beam is fixedly connected with a first baffle.

[0009] The moving steel beam assembly includes a third precast steel beam, on the side of which a bent steel pipe is fixedly connected. The bent steel pipe extends into the interior of a limiting hole, and a second nut is threaded to the bottom of the bent steel pipe.

[0010] As a preferred embodiment of this utility model, a plurality of high-strength bolts and nuts are provided, the high-strength bolts pass through the limiting holes, and a second precast steel beam is provided between the high-strength bolts and nuts.

[0011] As a preferred embodiment of this utility model, two crossbeams, a bent steel pipe, and a second nut are provided.

[0012] As a preferred embodiment of this utility model, the bottom of the third precast steel beam is fixedly connected to a second baffle, and a fourth precast steel beam is provided at the bottom of the second baffle. The fourth precast steel beam has a threaded hole inside.

[0013] As a preferred embodiment of this utility model, a stud is provided at the top of the fourth precast steel beam, and the stud extends to the top of the third precast steel beam.

[0014] As a preferred embodiment of this utility model, a first nut is provided on the top of the third precast steel beam, the stud is threadedly connected to the first nut, a reinforcing steel cylinder is provided between the third precast steel beam and the fourth precast steel beam, and the stud extends into the interior of the reinforcing steel cylinder.

[0015] As a preferred embodiment of this utility model, four reinforcing steel cylinders, studs, and first nuts are provided.

[0016] As a preferred embodiment of this utility model, a plurality of limiting holes are provided, a cast-in-place concrete layer is provided on the side of the crossbeam, and the interior of the cast-in-place concrete layer is provided with node stirrups and high-strength steel bars.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, by inserting a bent steel pipe through a limiting hole and locking it with a second nut, the local position of the moving steel beam assembly can be adjusted. The distance between the first and third precast steel beams has been selected, and the bent steel pipe is inserted and fixed through the limiting holes at different positions, thereby controlling the size of the cast-in-place concrete layer. This eliminates the need for wet work of post-cast concrete in the beam-column joint area on the construction site, ensuring the quality of the components in the beam-column joint area, improving on-site construction efficiency, and shortening the project construction cycle.

[0019] 2. In this utility model, by utilizing a combined frame structure system of the first, second, third, and fourth precast steel beams, and in conjunction with high-strength bolts as vertical load-bearing components, it is easy to manufacture in factories and use high-strength concrete materials. At the same time, it reduces the corrosion and fire prevention problems caused by steel columns or steel pipe columns, and has significant economic benefits. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the fixed steel beam assembly structure of this utility model;

[0022] Figure 3 This is a partially exploded structural diagram of the moving steel beam assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the interlocking fixing component structure of this utility model.

[0024] In the diagram: 1. Main body; 101. Crossbeam; 102. Limiting hole; 103. Cast-in-place concrete layer; 2. Fixed steel beam assembly; 201. First precast steel beam; 202. High-strength bolt; 203. Nut; 204. First baffle; 205. Second precast steel beam; 3. Moving steel beam assembly; 301. Third precast steel beam; 302. Reinforcing steel cylinder; 303. Second baffle; 304. Stud; 305. First nut; 306. Fourth precast steel beam; 307. Threaded hole; 308. Bent steel pipe; 309. Second nut. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example: Please refer to Figures 1-4 The modular precast steel-concrete composite frame structure shown includes a main body 1, and a fixed steel beam assembly 2 and a movable steel beam assembly 3 are provided on the top of the main body 1.

[0027] In this embodiment, reference is made to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the main body 1 includes a crossbeam 101, with a limiting hole 102 inside the crossbeam 101. The fixed steel beam assembly 2 includes a first precast steel beam 201, with a high-strength bolt 202 inside the first precast steel beam 201. A nut 203 is threaded to the bottom of the high-strength bolt 202. A first baffle 204 is fixedly connected to the bottom of the first precast steel beam 201. The movable steel beam assembly 3 includes a third precast steel beam 301, with a bent steel pipe 308 fixedly connected to the side of the third precast steel beam 301. The bent steel pipe 308 extends into the limiting hole 102, and its bottom is threaded. With a second nut 309, the bent steel pipe 308 is inserted into the limiting hole 102 and locked in conjunction with the second nut 309, so that the local position of the moving steel beam assembly 3 can be adjusted. The distance between the first precast steel beam 201 and the third precast steel beam 301 has been selected. The bent steel pipe 308 is inserted and fixed in the limiting hole 102 at different positions, thereby controlling the size of the cast-in-place concrete layer 103. This not only eliminates the wet operation method of post-cast concrete in the beam-column joint area on the construction site, ensuring the component quality in the beam-column joint area, but also improves the on-site construction efficiency and shortens the project construction cycle.

[0028] The system includes several high-strength bolts 202 and nuts 203. The high-strength bolts 202 penetrate the limiting hole 102. A second precast steel beam 205 is positioned between the high-strength bolts 202 and nuts 203. Two crossbeams 101, bent steel pipes 308, and second nuts 309 are provided. A second baffle 303 is fixedly connected to the bottom of the third precast steel beam 301. A fourth precast steel beam 306 is positioned at the bottom of the second baffle 303. The fourth precast steel beam 306 has threaded holes 307 inside. A stud 304 is positioned at the top of the fourth precast steel beam 306, extending to the top of the third precast steel beam 301. A first nut 305 is provided at the top of beam 301, and a stud 304 is threadedly connected to the first nut 305. A reinforcing steel cylinder 302 is provided between the third precast steel beam 301 and the fourth precast steel beam 306, and the stud 304 extends into the interior of the reinforcing steel cylinder 302. The combined frame structure system of the first precast steel beam 201, the second precast steel beam 205, the third precast steel beam 301 and the fourth precast steel beam 306, and the use of high-strength bolts 202 as vertical load-bearing components, facilitates factory production and the use of high-strength concrete materials. At the same time, it reduces the corrosion and fire prevention problems caused by steel columns or steel pipe columns, and has significant economic benefits.

[0029] In this embodiment, reference is made to Figure 1 and Figure 3As shown, there are four reinforcing steel cylinders 302, studs 304 and first nuts 305, and several limiting holes 102 are provided. A cast-in-place concrete layer 103 is provided on the side of the crossbeam 101. The interior of the cast-in-place concrete layer 103 is provided with node stirrups and high-strength steel bars. The frame composed of node stirrups and high-strength steel bars is made of large-diameter steel bars, which can reduce the number of steel bars, increase the spacing between steel bars, improve the assembly construction efficiency, ensure construction quality and reduce costs.

[0030] In this solution, a modular precast steel-concrete composite frame structure is used. High-strength bolts 202 and nuts 203 are used to connect the first precast steel beam 201 and the second precast steel beam 205 to the crossbeam 101. Before pouring, a bent steel pipe 308 can be used to locate the designated limiting hole 102, and a second nut 309 can be used to fix the third precast steel beam 301. A stud 304 passes through the reinforcing steel cylinder 302 and the third precast steel beam 301, and the first nut 305 is threaded into the stud 304 to fix the fourth precast steel beam 306. This fixing and moving method expands the pouring area while improving the convenience of installation and disassembly. This new prefabricated steel and concrete composite frame structure system, which jointly bears vertical and horizontal loads, improves pouring efficiency.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular prefabricated steel-concrete composite frame structure comprising a main body (1), characterized in that: The top of the main body (1) is provided with a fixed steel beam assembly (2) and a movable steel beam assembly (3); The main body (1) comprises a cross beam (101), and a limiting hole (102) is formed in the inside of the cross beam (101); The fixed steel beam assembly (2) comprises a first prefabricated steel beam (201), a high-strength bolt (202) is arranged in the inside of the first prefabricated steel beam (201), a nut (203) is threadedly connected to the bottom of the high-strength bolt (202), and a first baffle (204) is fixedly connected to the bottom of the first prefabricated steel beam (201); The movable steel beam assembly (3) comprises a third prefabricated steel beam (301), a bent steel pipe (308) is fixedly connected to the side surface of the third prefabricated steel beam (301), the bent steel pipe (308) extends into the inside of the limiting hole (102), and a second nut (309) is threadedly connected to the bottom of the bent steel pipe (308).

2. A modular precast steel-concrete composite framed structure according to claim 1, characterized in that: The high-strength bolt (202) and the nut (203) are provided with a plurality of high-strength bolts (202) penetrating through the limiting hole (102), and a second prefabricated steel beam (205) is arranged between the high-strength bolt (202) and the nut (203).

3. The modular precast steel-concrete composite framed structure according to claim 1, wherein: The cross beam (101), the bent steel pipe (308) and the second nut (309) are provided with two.

4. The modular precast steel-concrete composite framed structure according to claim 1, wherein: The bottom of the third prefabricated steel beam (301) is fixedly connected with a second baffle (303), the bottom of the second baffle (303) is provided with a fourth prefabricated steel beam (306), and a threaded hole (307) is formed in the inside of the fourth prefabricated steel beam (306).

5. A modular precast steel reinforced concrete composite frame structure according to claim 4, wherein: The top of the fourth prefabricated steel beam (306) is provided with a peg (304), and the peg (304) extends to the top of the third prefabricated steel beam (301).

6. A modular precast steel reinforced concrete composite frame structure according to claim 5, wherein: The top of the third prefabricated steel beam (301) is provided with a first nut (305), the peg (304) is threadedly connected with the first nut (305), a reinforcing steel cylinder (302) is arranged between the third prefabricated steel beam (301) and the fourth prefabricated steel beam (306), and the peg (304) extends to the inside of the reinforcing steel cylinder (302).

7. A modular precast steel reinforced concrete composite frame structure according to claim 6, wherein: The reinforcing steel cylinder (302), the peg (304) and the first nut (305) are provided with four.

8. The modular precast steel-concrete composite framed structure according to claim 1, wherein: The limiting hole (102) is provided with a plurality of limiting holes (102), the side surface of the cross beam (101) is provided with a cast-in-place concrete layer (103), and node stirrups and high-strength steel bars are arranged in the inside of the cast-in-place concrete layer (103).

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