A steel structure for increasing the beam section based on building engineering

Abstract

The utility model relates to the field of building engineering, especially increase the steel structure of beam section based on building engineering, including steel sheet, first negative muscle, second negative muscle and sleeve steel bar, the through -hole for the sleeve steel bar is passed and is set up on the steel sheet, the sleeve steel bar can be dismantled and install on the steel sheet, the sleeve steel bar is embraced with the side portion of beam body through the steel sheet, the side portion of sleeve steel bar is fixedly connected with the waist muscle, both ends of the waist muscle are fixedly inserted in the wall body, the first negative muscle is located between the beam body and the steel sheet, the second negative muscle is located below the beam body, and the second negative muscle is fixedly connected with the sleeve steel bar, and the end of first negative muscle and second negative muscle is fixedly inserted in the wall body. The application can increase the section of the original beam body, can improve the strength and the bearing capacity of the beam body, can improve the pattern utilization rate of the building, can reach the effect that the structure integrity is strong, the strength is high, the anti -seismic reinforcing grade is improved and the like.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and specifically relates to a steel structure based on increasing the beam cross-section for building engineering. Background Technology

[0002] Currently, a large number of historically significant old buildings have suffered from insufficient load-bearing capacity or unmet functional requirements due to various reasons, such as changes in structural use, increased load, natural disasters, and environmental erosion.

[0003] Therefore, we propose a steel structure based on increasing the beam cross-section for building engineering, which modifies the beams of the building on the basis of the original building layout to solve the above problems. Summary of the Invention

[0004] To address the aforementioned issues, this utility model provides a steel structure for increasing beam cross-section in building engineering, comprising a steel plate, a first negative reinforcement, a second negative reinforcement, and threaded steel bars. The steel plate has through holes for the threaded steel bars to pass through, and the threaded steel bars are detachably mounted on the steel plate. The threaded steel bars are wrapped around the side of the beam by the steel plate.

[0005] The threaded steel bar is fixedly connected to the side with a web reinforcement bar, and the two ends of the web reinforcement bar are fixedly inserted into the wall.

[0006] The first negative reinforcement is located between the beam and the steel plate;

[0007] The second negative reinforcement is located below the beam and is fixedly connected to the threaded steel bar.

[0008] The ends of the first and second negative reinforcement bars are both fixedly inserted into the wall.

[0009] In one embodiment of this application, a fine aggregate concrete layer is filled between the steel plate and the beam, and the strength grade of the fine aggregate concrete layer is C30.

[0010] In one embodiment of this application, a grouting layer is filled between the threaded steel bar and the beam body, and the strength grade of the grouting layer is C30.

[0011] In one embodiment of this application, the type of the lumbar support is set to HRB400Ø14.

[0012] In one embodiment of this application, the first negative reinforcement and the second negative reinforcement are configured as HRB400Ø16.

[0013] In one embodiment of this application, the type of the threaded steel bar is set to HRB400Ø8.

[0014] In one embodiment of this application, the threaded steel bar is fixedly connected with a hook, and one end of the hook is fixedly connected to the bottom of the beam.

[0015] The beneficial effects of this utility model are:

[0016] 1. Without removing the original structural beam, place a steel plate on top of the beam. Then, threaded steel bars are passed through the through holes and bolted to the steel plate, so that the threaded steel bars wrap around the beam. The use of web reinforcement allows multiple threaded steel bars to be connected together, increasing the strength of the beam after pouring. The use of the first negative reinforcement increases the strength of the fine aggregate concrete layer after solidification. The combination of the fine aggregate concrete layer and the first negative reinforcement provides some support to the beam and further enhances its strength. In terms of load-bearing capacity, the use of grouting material layers, with the formwork used for filling the grouting material layer, allows the grouting material to tightly encapsulate the beam together with the threaded steel bars, ensuring the strength of the beam while increasing the cross-section of the original beam. The use of second negative reinforcement, combined with the grouting material layer, can support the original beam, improving the strength and load-bearing capacity of the beam, increasing the utilization rate of the building's layout, and achieving the effects of strong structural integrity, high strength, and improved seismic reinforcement level.

[0017] 2. The use of hooks can provide support for threaded steel bars, thereby increasing the load-bearing capacity of the threaded steel bars and improving the strength of the beam after the cross-section is increased.

[0018] 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 objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of a steel plate according to an embodiment of the present invention is shown.

[0021] Figure 2 A schematic diagram of the threaded steel bar according to an embodiment of the present invention is shown.

[0022] Figure 3 A schematic cross-sectional view of the grouting layer according to an embodiment of the present invention is shown.

[0023] Figure 4 An exploded view of the threaded steel bar and steel plate according to an embodiment of the present invention is shown.

[0024] In the diagram: 1. Steel plate; 2. First negative reinforcement; 3. Second negative reinforcement; 4. Threaded steel bar; 5. Through hole; 6. Web reinforcement; 7. Fine aggregate concrete layer; 8. Grouting layer; 9. Tie hook; 10. Beam; 11. Floor slab. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] See Figures 1-4 This utility model embodiment provides a steel structure based on increasing the beam cross-section for building engineering, including a steel plate 1, a first negative reinforcement 2, a second negative reinforcement 3, and a threaded steel bar 4. The steel plate 1 has a through hole 5 for the threaded steel bar 4 to pass through. The threaded steel bar 4 is detachably installed on the steel plate 1. The threaded steel bar 4 is wrapped around the side of the beam body by the steel plate 1.

[0027] The threaded steel bar 4 is fixedly connected to the side with a waist bar 6, and the two ends of the waist bar 6 are fixedly inserted into the wall.

[0028] The first negative reinforcement 2 is located between the beam and the steel plate 1;

[0029] The second negative reinforcement 3 is located below the beam, and the second negative reinforcement 3 is fixedly connected to the threaded steel bar 4;

[0030] The ends of the first negative reinforcement 2 and the second negative reinforcement 3 are both fixedly inserted into the wall.

[0031] The space between the steel plate 1 and the beam is filled with a fine stone concrete layer 7, the strength grade of the fine stone concrete layer 7 being C30.

[0032] The space between the threaded steel bar 4 and the beam body is filled with a grout layer 8, and the strength grade of the grout layer 8 is C30.

[0033] The type of the lumbar tendon 6 is set to HRB400Ø14;

[0034] The first negative reinforcement 2 and the second negative reinforcement 3 are set to HRB400Ø16;

[0035] The type of the threaded steel bar 4 is set to HRB400Ø8.

[0036] It should be noted that the threaded steel bar 4 is frame-shaped, and the end of the threaded steel bar 4 is provided with external threads for installing bolts;

[0037] Several steel plates 1 are provided, and the number of steel plates 1 is the same as the number of threaded steel bars 4. The steel plates are erected on the floor slabs on both sides of the beam. The adjacent steel plates are arranged at equal intervals and along the entire length, which can provide support and reinforcement for the beam.

[0038] The threaded steel bar 4 passes through the floor slab and is fixed to the steel plate 1.

[0039] Using the above scheme, without chiseling the original structural beam, a steel plate 1 is placed on top of the beam. Threaded steel bars 4 are then passed through through holes 5 and bolted to the steel plate 5, so that the threaded steel bars 4 encircle the beam. The use of web reinforcement 6 connects multiple threaded steel bars 4 together, increasing the strength of the beam after pouring. The use of the first negative reinforcement 2 increases the strength of the fine aggregate concrete layer 7 after solidification, and the combination of the fine aggregate concrete layer 7 and the first negative reinforcement 7 provides structural support to the beam. It provides a certain degree of support and can improve the strength and load-bearing capacity of the beam. By using the grout layer 8, when filling the grout layer 8, the formwork is used for grout filling. The grout, through its own fluidity, together with the threaded steel bars 4, tightly covers the beam. While ensuring the strength of the beam, it can increase the cross-section of the original beam. Through the use of the second negative reinforcement 3, when combined with the grout layer 8, it can support the original beam and improve the strength and load-bearing capacity of the beam. The above structure can improve the utilization rate of the building layout.

[0040] In this embodiment, the threaded steel bar 4 is fixedly connected to a hook 9, and one end of the hook 9 is fixedly connected to the bottom of the beam.

[0041] By adopting the above scheme, the use of hook 9 can provide support for the threaded steel bar 4, which can improve the bearing capacity of the threaded steel bar and increase the strength of the beam after the cross section is increased.

[0042] The working principle involves placing a steel plate on top of the original structural beam without removing any structural elements. Threaded steel bars are then passed through through holes and bolted to the steel plate, encircling the beam. Multiple threaded steel bars can be connected together using web reinforcement, increasing the beam's strength after pouring. The use of the first negative reinforcement enhances the strength of the fine aggregate concrete layer after solidification. The combination of the fine aggregate concrete layer and the first negative reinforcement provides support to the beam and improves its overall strength. The strength and load-bearing capacity are improved by using a grouting layer. When filling the grouting layer, a formwork support method is used. The grout, through its own fluidity, tightly covers the beam together with the threaded steel bars. While ensuring the strength of the beam, it can increase the cross-section of the original beam. The use of a second negative reinforcement bar, when combined with the grouting layer, can support the original beam, thereby improving the strength and load-bearing capacity of the beam, improving the utilization rate of the building's layout, and achieving the effects of strong structural integrity, high strength, and improved seismic reinforcement level.

[0043] By using hook 9, the threaded steel bar 4 can be supported, which can improve the bearing capacity of the threaded steel bar 4 and increase the strength of the beam after the cross section is increased.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel structure based on increasing beam cross-section for building engineering, comprising a steel plate (1), a first negative reinforcement (2), a second negative reinforcement (3), and threaded steel bars (4), characterized in that: The steel plate (1) has through holes (5) for threaded steel bars (4) to pass through. The threaded steel bars (4) are detachably installed on the steel plate (1). The threaded steel bars (4) wrap around the side of the beam through the steel plate (1). The side of the threaded steel bar (4) is fixedly connected with a waist bar (6), and the two ends of the waist bar (6) are fixedly inserted into the wall. The first negative reinforcement (2) is located between the beam and the steel plate (1); The second negative reinforcement (3) is located below the beam and is fixedly connected to the threaded steel bar (4); The ends of the first negative reinforcement (2) and the second negative reinforcement (3) are both fixedly inserted into the wall.

2. A steel structure based on increasing beam cross-section for building engineering according to claim 1, characterized in that: The space between the steel plate (1) and the beam is filled with a fine stone concrete layer (7), the strength grade of which is C30.

3. A steel structure based on increasing beam cross-section for building engineering according to claim 1, characterized in that: The threaded steel bar (4) is filled with a grouting layer (8) between itself and the beam body. The strength grade of the grouting layer (8) is C30.

4. A steel structure based on increasing beam cross-section for building engineering according to claim 1, characterized in that: The model of the waist tendon (6) is set as HRB400Ø14.

5. A steel structure based on increasing beam cross-section for building engineering according to claim 1, characterized in that: The first negative reinforcement (2) and the second negative reinforcement (3) are set to HRB400Ø16.

6. A steel structure based on increasing beam cross-section for building engineering according to claim 1, characterized in that: The type of the threaded steel bar (4) is set to HRB400Ø8.

7. A steel structure based on increasing beam cross-section for building engineering according to claim 1, characterized in that: The threaded steel bar (4) is fixedly connected to a hook (9), and one end of the hook (9) is fixedly connected to the bottom of the beam.

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