Steel composite beam
By installing inclined reinforcement plates and Z-shaped reinforcement plates on the main body of the I-shaped steel beam of the steel composite beam, the problem of insufficient support caused by corrosion in high-temperature corrosion environments is solved, and the structural strength is improved and the construction convenience is achieved.
Patent Information
- Application Number
- CN202422134744.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-09-02
AI Technical Summary
Long-term exposure of steel beams in high-temperature corrosion environments leads to corrosion, resulting in cross-sectional losses, which cannot meet the requirements of stress ratio, high-thickness ratio, width-thickness ratio, etc., resulting in insufficient support.
A steel composite beam is designed, the main body of the steel beam adopts an I-shaped structure, and an inclined reinforcement plate is installed at the upper flange, and a Z-shaped reinforcement plate is installed at the lower flange, so that the structural strength is improved through these reinforcement plates.
By strengthening the design of the plate, the structural strength of the main body of the steel beam is improved, the service life of the steel beam is extended, the installation process is simplified, and the construction period is shortened.
Smart Images
Figure CN222771736U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel beams, in particular to a steel composite beam. Background Art
[0002] During the production process, some industrial plants produce high-temperature gases containing corrosive substances. In winter, the high-temperature gases condense into liquid when they get cold and adhere to the surface of steel beams. If steel beams are exposed to this environment for a long time, corrosion will occur, causing cross-sectional loss.
[0003] After structural calculation, the cross-section of the corroded steel beam can no longer meet the requirements of stress ratio, height-to-thickness ratio, width-to-thickness ratio, etc. Therefore, it is necessary to redesign the paired steel composite beams to solve the above problems. In view of this, in-depth research was conducted on the above problems, which led to this case. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a steel composite beam, which solves the existing background technical problems.
[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a steel composite beam, including a steel beam body, the steel beam body is an I-shaped steel beam, and the upper and lower flanges of the steel beam body are both rounded transitions;
[0006] A pair of oblique reinforcement plates are symmetrically arranged on both sides of the upper flange of the steel beam body;
[0007] A pair of Z-shaped reinforcement plates are symmetrically arranged on both sides of the lower flange of the steel beam body;
[0008] A pair of connection seams are extended from both sides of the oblique reinforcing plate, and a plurality of insertion holes are provided on the pair of connection seams. A plurality of docking holes are provided on the top of the steel beam body, and the plurality of insertion holes correspond to the plurality of docking holes. A plurality of anti-tension bolts are installed in the plurality of insertion holes and connected with the plurality of docking holes.
[0009] A baffle extends from the upper part of the lower flange of the steel beam body, and the baffle is attached to one side of the Z-shaped reinforcing plate. A tensioning plate is correspondingly provided on one side of the baffle, and a plurality of tensioning rods are arranged in a linear array on the tensioning plate.
[0010] Preferably, the plurality of tension rods are a plurality of bolt rods, and the plurality of tension rods are integrally formed with the tension plate.
[0011] Preferably, a plurality of tensioning grooves are provided in a linear array on one side of the Z-shaped reinforcing plate, and the widths of the plurality of tensioning grooves match those of the plurality of tensioning rods.
[0012] Preferably, a plurality of fixing nuts are connected to the plurality of tensioning rods, and the plurality of fixing nuts are pulled back on the plurality of tensioning grooves.
[0013] Preferably, the baffle plate is arranged in parallel with the tensioning plate, and the outer upper edge of the baffle plate is a sloped edge structure.
[0014] Preferably, one side edge of the Z-shaped reinforcing plate is attached to the side surface of the steel beam body and welded thereto.
[0015] The utility model provides a steel composite beam. It has the following beneficial effects: the steel composite beam has an I-shaped structure as the main body of the steel beam, an oblique reinforcing plate is installed at the upper flange of the main body of the steel beam, and a Z-shaped reinforcing plate is installed at the lower flange of the main body of the steel beam, the structural strength of the main body of the steel beam is improved by the oblique reinforcing plate and the Z-shaped reinforcing plate, and the oblique reinforcing plate and the Z-shaped reinforcing plate have only one welding position, and the rest are fixed based on the position of the main body of the steel beam, the construction is convenient, the use of the original structure is not affected, and the construction period is shortened. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of a steel composite beam described in the utility model.
[0017] Figure 2 The utility model is a schematic diagram of the side structure of a steel composite beam.
[0018] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a steel composite beam.
[0019] In the figure: 1. Steel beam body; 2. Upper flange; 3. Oblique reinforcement plate; 4. Lower flange; 5. Z-shaped reinforcement plate; 6. Connection seam; 7. Docking hole; 8. Counter-tension bolt; 9. Baffle; 10. Tension plate; 11. Tension rod; 12. Tension groove; 13. Fixing nut. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-3 The utility model provides an implementation scheme: in the use of modern steel composite beams, high-temperature gas containing corrosive substances will be generated during the production process in the factory; and in winter, the high-temperature gas condenses into liquid when it is cold and adheres to the surface of the steel beam; the steel beam will be corroded if it is exposed to this environment for a long time, resulting in section loss. After the section loss, the stress ratio, height-to-thickness ratio, and width-to-thickness ratio cannot meet the requirements, resulting in insufficient supporting force of the steel composite beam.
[0022] In view of the above problems, the present application discloses a steel composite beam, including a steel beam body 1, the steel beam body 1 is an I-shaped steel beam, the upper and lower flanges of the steel beam body 1 are both rounded, and the two ends of the I-shaped steel beam are arranged across the shear wall of the factory building, and the upper and lower flanges of the steel beam body 1 are rounded, so that the structural strength of the upper and lower flanges 4 of the steel beam body 1 can be improved;
[0023] Since the steel beam body 1 adopts an I-shaped structure, an upper flange 2 and a lower flange 4 are formed on both sides of the steel beam body 1. However, the upper and lower flanges 4 are prone to retain condensed water droplets of high-temperature gas under long-term use, so that the upper and lower flanges 4 of the steel beam body 1 are easily corroded, resulting in the structural strength failing to meet the requirements. Therefore, a pair of oblique reinforcing plates 3 are symmetrically arranged on both sides of the upper flange 2 of the steel beam body 1; a pair of Z-shaped reinforcing plates 5 are symmetrically arranged on both sides of the lower flange 4 of the steel beam body 1; the upper flange 2 of the steel beam body 1 is reinforced by a pair of oblique reinforcing plates 3, and the lower flange 4 of the steel beam body 1 is reinforced and supported by a pair of Z-shaped reinforcing plates 5, so as to play a supporting and strengthening role for the steel beam body 1. The oblique reinforcing plates 3 and the Z-shaped reinforcing plates 5 are installed later, and have a simple structure and strong bearing capacity, and are easy to install. They can effectively improve the structural strength of the upper and lower flanges 4 of the steel beam body 1, and wrap and protect the flange joint position of the steel beam body 1, thereby slowing down the corrosion of the main position and extending the service life of the steel beam.
[0024] Specifically, in order to facilitate the installation of the oblique reinforcing plate 3, a pair of connecting seams 6 are respectively extended on both sides of the oblique reinforcing plate 3, and a plurality of plug holes are opened on the pair of connecting seams 6. A plurality of docking holes 7 are opened on the top of the steel beam body 1, and the plurality of plug holes correspond to the plurality of docking holes 7. A plurality of reverse pull bolts 8 are installed in the plurality of plug holes to connect with the plurality of docking holes 7. By presetting the docking holes 7 with threaded structures on the upper flange 2 of the steel beam body 1 and the side of the body, when installing the oblique reinforcing plate 3, the reverse pull bolts 8 are reversely pulled with the docking holes 7 to reversely pull and fix the pair of connecting seams 6 extending from the oblique reinforcing plate 3, which is convenient for installation and saves installation materials.
[0025] The lower part of the steel beam body 1 is not installed with an oblique reinforcement plate 3, but with a Z-shaped reinforcement plate 5. Firstly, the Z-shaped reinforcement plate 5 can increase the bonding area with the side of the steel beam body 1 to improve the structural strength. Secondly, the Z-shaped reinforcement plate 5 is easy to install and there is no need to adjust the angle like the oblique reinforcement plate 3.
[0026] Therefore, for the installation of the Z-shaped reinforcement plate 5, a baffle 9 is extended from the upper part of the lower flange 4 of the steel beam main body 1, and the baffle 9 is attached to one side of the Z-shaped reinforcement plate 5. A tensioning plate 10 is correspondingly provided on one side of the baffle 9, and a plurality of tensioning rods 11 are arranged in a linear array on the tensioning plate 10. A plurality of tensioning tubes are passed through one side of the Z-shaped reinforcement plate 5 to achieve the preliminary positioning and fixation of the Z-shaped reinforcement plate 5, and then the other side of the Z-shaped reinforcement plate 5 is connected to the steel beam main body 1 to fix the Z-shaped reinforcement plate 5 to one side of the steel beam main body 1, and then the baffle 9 and the tensioning plate 10 are integrally formed with the flange of the steel beam main body 1, which can further improve the structural strength of the steel beam main body 1.
[0027] As a preferred solution, further, the plurality of tension rods 11 are a plurality of bolt rods, and the plurality of tension rods 11 and the tension plate 10 are integrally formed to facilitate production.
[0028] As a preferred solution, further, a plurality of tensioning grooves 12 are provided in a linear array on one side of the Z-shaped reinforcing plate 5 , and the widths of the plurality of tensioning grooves 12 match those of the plurality of tensioning rods 11 .
[0029] As a preferred solution, further, a plurality of fixing nuts 13 are connected to the plurality of tension rods 11 , and the plurality of fixing nuts 13 are pulled back on the plurality of tension grooves 12 , so as to play a role in limiting the installation of the Z-shaped reinforcement plate 5 .
[0030] As a preferred solution, further, the baffle plate 9 is arranged in parallel with the tension plate 10, and the outer upper edge of the baffle plate 9 is a slope structure to facilitate the water droplet diversion.
[0031] As a preferred solution, further, one side edge of the Z-shaped reinforcing plate 5 is welded to the side of the steel beam body 1 to increase the connection area between the Z-shaped reinforcing plate 5 and the steel beam body 1, and there is only one welding position, which is convenient and efficient to operate.
[0032] From the above, it can be generally known that the main body of the steel composite beam adopts an I-shaped structure, an oblique reinforcement plate 3 is installed behind the upper flange 2 of the steel beam main body 1, and a Z-shaped reinforcement plate 5 is installed behind the lower flange 4 of the steel beam main body 1. The structural strength of the steel beam main body 1 is improved by the oblique reinforcement plate 3 and the Z-shaped reinforcement plate 5, and the oblique reinforcement plate 3 and the Z-shaped reinforcement plate 5 have only one welding position, and the rest are fixed based on the position of the steel beam main body 1, which is convenient for construction, does not affect the use of the original structure, and shortens the construction period.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A steel composite beam, comprising a steel beam body (1), wherein the steel beam body (1) is an I-shaped steel beam, and the upper and lower flanges of the steel beam body (1) are both rounded transitions. It is characterized by: A pair of oblique reinforcement plates (3) are symmetrically arranged on both sides of the upper flange (2) of the steel beam body (1); A pair of Z-shaped reinforcing plates (5) are symmetrically arranged on both sides of the lower flange (4) of the steel beam body (1); A pair of connection seams (6) are respectively extended from both sides of the oblique reinforcing plate (3), a plurality of insertion holes are provided on the pair of connection seams (6), a plurality of docking holes (7) are provided on the top of the steel beam body (1), a plurality of the insertion holes correspond to the plurality of docking holes (7), and a plurality of anti-tension bolts (8) are installed in the plurality of the insertion holes and connected to the plurality of docking holes (7); A baffle (9) extends from the upper portion of the lower flange (4) of the steel beam body (1), and the baffle (9) is attached to one side of the Z-shaped reinforcing plate (5). A tensioning plate (10) is correspondingly provided on one side of the baffle (9), and a plurality of tensioning rods (11) are arranged in a linear array on the tensioning plate (10).
2. A steel composite beam according to claim 1, characterized in that: The plurality of tension rods (11) are a plurality of bolt rods, and the plurality of tension rods (11) and the tension plate (10) are integrally formed.
3. A steel composite beam according to claim 2, characterized in that: A plurality of tensioning grooves (12) are provided in a linear array on one side of the Z-shaped reinforcing plate (5), and the widths of the plurality of tensioning grooves (12) match those of the plurality of tensioning rods (11).
4. A steel composite beam according to claim 3, characterized in that: A plurality of fixing nuts (13) are connected to the plurality of tension rods (11), and the plurality of fixing nuts (13) are pulled back on the plurality of tension grooves (12).
5. A steel composite beam according to claim 4, characterized in that: The baffle plate (9) is arranged in parallel with the tension plate (10), and the outer upper edge of the baffle plate (9) is a sloped edge structure.
6. A steel composite beam according to claim 5, characterized in that: One side edge of the Z-shaped reinforcing plate (5) is attached to the side surface of the steel beam body (1) and is welded thereto.