A light steel structure end plate splicing reinforcement system

Abstract

This utility model belongs to the field of building steel structure reinforcement technology, and provides a light steel structure end plate splicing reinforcement system, including two sets of foundation end plates; the two sets of foundation end plates are attached together and fixedly connected by foundation high-strength bolts, and the foundation end plates and foundation stiffening ribs are fixed to the web of the steel beam; reinforcing end plates are fixed on both sides of the foundation end plates, and two reinforcing end plates on the same side are attached together and fixedly connected by reinforcing high-strength bolts, and reinforcing stiffening ribs are fixed on the reinforcing end plates, which are aligned and fixed with the corresponding foundation stiffening ribs. In this light steel structure end plate splicing reinforcement system, the foundation end plates, foundation high-strength bolts, and foundation stiffening ribs are the original end plate node structure. Without the need for large-scale demolition and reconstruction, by adding reinforcing end plates, reinforcing high-strength bolts, and reinforcing stiffening ribs on both sides of the foundation end plates, the load-bearing capacity of the original end plate node can be effectively improved, which is beneficial for the improvement and renovation of the load-bearing capacity of roof steel beam structures of industrial plants, warehouse buildings, etc.

Description

Technical Field

[0001] This utility model belongs to the field of building steel structure reinforcement technology, specifically relating to a light steel structure end plate splicing reinforcement system. Background Technology

[0002] Light steel structures (such as portal frames and steel frame structures) are widely used in industrial plants, warehouses, and public facilities due to their advantages such as light weight, fast construction speed, and environmental friendliness and energy saving. Their beam-column or beam-beam joints often employ end-plate splicing connections (such as end-plate-high-strength bolt connections). This connection method is characterized by its simple construction and convenient on-site installation.

[0003] When roof renovations are carried out or loads are increased (such as photovoltaic installations), the original design of the end plate connection nodes may have insufficient node stiffness or load-bearing capacity, resulting in excessive bending deformation of the end plate, slippage of the connection area, or breakage / loosening of high-strength bolts, which affects the overall safety and performance of the structure.

[0004] In cases where the internal forces of structural components increase, the existing technology typically involves dismantling and rebuilding the structure, and redesigning the end plates and high-strength bolts, which is time-consuming and labor-intensive. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a light steel structure end plate splicing and reinforcement system, which can solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a light steel structure end plate splicing and reinforcement system, comprising two sets of foundation end plates;

[0007] The two sets of foundation end plates are attached together and fixedly connected by foundation high-strength bolts. Foundation stiffening ribs are fixed on the foundation end plates. Both the foundation end plates and the foundation stiffening ribs are fixed to the web of the steel beam.

[0008] Both sides of the base end plate are fixed with reinforcing end plates. Two reinforcing end plates on the same side are attached together and fixedly connected by reinforcing high-strength bolts. Reinforcing stiffening ribs are fixed on the reinforcing end plates. The reinforcing stiffening ribs correspond one-to-one with the base stiffening ribs. The reinforcing stiffening ribs are aligned with and fixed to the corresponding base stiffening ribs.

[0009] Preferably, two sets of flange stiffening ribs are fixed on the reinforcing end plate, and the two sets of flange stiffening ribs are respectively fixed to the upper flange and the lower flange of the steel beam. The upper flange and the lower flange of the steel beam are both fixed to the foundation end plate.

[0010] Preferably, the reinforcing end plate has the same thickness as the base end plate.

[0011] Preferably, the reinforcing end plate is made of the same material as the base end plate.

[0012] Preferably, the number of reinforcing high-strength bolts is the same as the number of basic high-strength bolts.

[0013] Preferably, the reinforcing end plate has a bevel, and the reinforcing end plate is welded to the base end plate with equal strength.

[0014] Preferably, the reinforcing stiffener is fixed to the reinforcing end plate by a bevel weld or a fillet weld.

[0015] Preferably, the reinforcing stiffener is fixed to the basic stiffener by a bevel weld or a fillet weld.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model provides a light steel structure end plate splicing and reinforcement system, wherein the foundation end plate, foundation high-strength bolts, and foundation stiffening ribs are the original end plate node structure. Without the need for large-scale demolition and reconstruction, by adding reinforcing end plates, reinforcing high-strength bolts, and reinforcing stiffening ribs on both sides of the foundation end plate, the load-bearing capacity of the original end plate node can be effectively improved. This is very beneficial for the load-bearing capacity improvement and renovation of roof steel beam structures of industrial plants, warehouse buildings, etc.

[0018] 2. This utility model provides a light steel structure end plate splicing and reinforcement system. The newly added reinforcing ribs are tightly connected to the new reinforcing end plate and the existing foundation stiffening ribs via bevel welds or fillet welds, providing strong constraint for the new reinforcing end plate and ensuring its stability. The newly added flange stiffening ribs are fixed to the upper and lower flanges of the steel beam, further enhancing the stability of the reinforcing end plate. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the original end plate node;

[0020] Figure 2 This is one of the side view structural schematic diagrams of a light steel structure end plate splicing and reinforcement system provided in an embodiment of the present utility model;

[0021] Figure 3 A front view structural diagram of a light steel structure end plate splicing and reinforcement system provided in this embodiment of the utility model;

[0022] Figure 4 A second side view of a light steel structure end plate splicing and reinforcement system provided for an embodiment of this utility model;

[0023] Figure 5A side view of the foundation end plate and related parts of a light steel structure end plate splicing and reinforcement system provided for an embodiment of this utility model;

[0024] Figure 6 A three-dimensional structural schematic diagram of an auxiliary positioning component for a light steel structure end plate splicing and reinforcement system provided in an embodiment of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Foundation end plate;

[0027] 2. Basic stiffening ribs;

[0028] 3. High-strength bolts for the foundation;

[0029] 4. Reinforce the end plates;

[0030] 5. Steel beam web;

[0031] 6. Use high-strength bolts;

[0032] 7. Strengthen the stiffening ribs;

[0033] 8. Upper flange of steel beam;

[0034] 9. Lower flange of steel beam;

[0035] 10. Flange stiffening ribs;

[0036] 11. Auxiliary positioning components;

[0037] 12. Horizontal bar;

[0038] 13. Connecting rod;

[0039] 14. Clamping components. Detailed Implementation

[0040] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0041] This embodiment provides a light steel structure end plate splicing and reinforcement system, including two sets of basic end plates 1.

[0042] The two sets of foundation end plates 1 are attached together and fixedly connected by foundation high-strength bolts 3. Foundation stiffening ribs 2 are fixed on the foundation end plates 1. Both the foundation end plates 1 and the foundation stiffening ribs 2 are fixed to the web plate 5 of the steel beam.

[0043] For example, see Figure 1A set of foundation end plates 1 is fixed to the right end of the left steel beam, and a set of foundation end plates 1 is fixed to the left end of the right steel beam. The two sets of foundation end plates 1 are attached together and fixedly connected by foundation high-strength bolts 3, thus connecting the steel beams on both sides. The steel beam includes a web 5, an upper flange 8, and a lower flange 9, all of which are fixed to the foundation end plates 1 on the same side. Foundation stiffening ribs 2 are simultaneously fixed to the foundation end plates 1 and the steel beam web 5, enhancing the stability and integrity of the foundation end plates 1 and the steel beam web 5.

[0044] Both sides of the base end plate 1 are fixed with reinforcing end plates 4. The two reinforcing end plates 4 on the same side are attached together and fixedly connected by reinforcing high-strength bolts 6. Reinforcing stiffening ribs 7 are fixed on the reinforcing end plate 4. The reinforcing stiffening ribs 7 correspond one-to-one with the base stiffening ribs 2. The reinforcing stiffening ribs 7 are aligned with and fixed to the corresponding base stiffening ribs 2.

[0045] For example, see Figure 1 , Figure 3 The left foundation end plate 1 is fixed with reinforcing end plates 4 on both its front and rear sides, and the right foundation end plate 1 is also fixed with reinforcing end plates 4 on both its front and rear sides. The two front reinforcing end plates 4 are attached together and fixedly connected by reinforcing high-strength bolts 6, and the two rear reinforcing end plates 4 are attached together and fixedly connected by reinforcing high-strength bolts 6. By setting the reinforcing end plates 4, the end plates at the original node can be enlarged, and the number of high-strength bolts can be increased, thereby improving the load-bearing capacity of the node.

[0046] See Figure 2 Six basic stiffening ribs 2 are fixed on the foundation end plate 1, with three basic stiffening ribs 2 distributed in the front area of ​​the steel beam web 5 and the other three basic stiffening ribs 2 distributed in the rear area of ​​the steel beam web 5. Three reinforcing stiffening ribs 7 are fixed on the reinforcing end plate 4. The reinforcing stiffening ribs 7 on the front reinforcing end plate 4 correspond one-to-one with the basic stiffening ribs 2 in the front area of ​​the steel beam web 5, and the reinforcing stiffening ribs 7 on the rear reinforcing end plate 4 correspond one-to-one with the basic stiffening ribs 2 in the rear area of ​​the steel beam web 5. The reinforcing stiffening ribs 7 are aligned and fixed with their corresponding basic stiffening ribs 2. The installation of the reinforcing stiffening ribs 7 effectively improves the stability and integrity of the reinforcing end plate 4 and the foundation end plate 1.

[0047] Based on the above structure, the light steel structure end plate splicing reinforcement system provided in this embodiment includes the original end plate node structure, which consists of the foundation end plate 1, foundation high-strength bolts 3, foundation stiffening ribs 2, and steel beams. Without the need for large-scale demolition and reconstruction, the load-bearing capacity of the original end plate node can be effectively improved by adding reinforcing end plates 4, reinforcing high-strength bolts 6, and reinforcing stiffening ribs 7 on both sides of the foundation end plate 1. This is very beneficial for improving and modifying the load-bearing capacity of roof steel beam structures in industrial plants, warehouse buildings, etc.

[0048] Based on the above technical solution, in the technical solution provided in this embodiment, two sets of flange stiffening ribs 10 are fixed on the reinforcing end plate 4. The two sets of flange stiffening ribs 10 are respectively fixed to the upper flange 8 and the lower flange 9 of the steel beam. The upper flange 8 and the lower flange 9 of the steel beam are both fixed to the foundation end plate 1.

[0049] For example, see Figure 4 A flange stiffening rib 10 is fixed to the upper region of the reinforcing end plate 4, and this flange stiffening rib 10 is aligned with and welded to the upper flange 8 of the steel beam. A flange stiffening rib 10 is also fixed to the lower region of the reinforcing end plate 4, and this flange stiffening rib 10 is aligned with and welded to the lower flange 9 of the steel beam. This can improve the integrity and stability of the reinforcing end plate 4 with the upper flange 8 and the lower flange 9 of the steel beam, thereby improving the integrity and stability of the reinforcing end plate 4 with the steel beam.

[0050] In the technical solution provided in this embodiment, the reinforcing end plate 4 and the basic end plate 1 have the same thickness and material;

[0051] For example, see Figure 5 The reinforcing end plate 4 is flush with the top and bottom ends of the base end plate 1. The width of the two reinforcing end plates 4 is the same, and the sum of the widths of the two reinforcing end plates 4 is the same as the width of the base end plate 1. At the same time, the thickness of the reinforcing end plate 4 is the same as that of the base end plate 1, and the material of the reinforcing end plate 4 is the same as that of the base end plate 1. In this way, the base end plate 1 can be enlarged by one time.

[0052] Furthermore, the number of reinforced high-strength bolts 6 is the same as that of the foundation high-strength bolts 3;

[0053] For example, see Figure 5 Each of the foundation end plate 1 has a row of vertically arranged high-strength foundation bolts 3 on both the front and rear sides. The front and rear reinforced end plates 4 also each have a row of vertically arranged reinforcing high-strength bolts 6. The reinforcing high-strength bolts 6 on the front reinforced end plate 4 correspond one-to-one with the foundation high-strength bolts 3 on the front side of the foundation end plate 1, and the reinforcing high-strength bolts 6 on the rear reinforced end plate 4 correspond one-to-one with the foundation high-strength bolts 3 on the rear side of the foundation end plate 1. Furthermore, the reinforcing high-strength bolts 6 are flush with their corresponding foundation high-strength bolts 3, and the spacing is fixed. This doubles the number of high-strength bolts, increasing the load-bearing capacity of the original end plate joint by at least 100%.

[0054] In the technical solution provided in this embodiment, the reinforcing end plate 4 is beveled, and the reinforcing end plate 4 is welded to the base end plate 1 with equal strength.

[0055] The stiffening rib 7 is fixed to the stiffening end plate 4 by a bevel weld or fillet weld.

[0056] The stiffening rib 7 is fixed to the basic stiffening rib 2 by a bevel weld or fillet weld.

[0057] The newly added reinforcing ribs 7 are tightly connected to the newly added reinforcing end plate 4 and the original basic reinforcing ribs 2 through bevel welds or fillet welds, providing strong constraints for the newly added reinforcing end plate 4 and ensuring the stability of the newly added reinforcing end plate 4 without any problems.

[0058] In the technical solution provided in this embodiment, an auxiliary positioning component 11 is provided at the top of the reinforcing end plate 4, and the auxiliary positioning component 11 is clamped at the top of the base end plate 1.

[0059] Among them, the auxiliary positioning component 11 is attached to the top of the reinforcing end plate 4;

[0060] For example, see Figure 5-6 The auxiliary positioning component 11 includes a crossbar 12. A connecting rod 13 and a C-shaped clamping component 14 are fixed at the bottom of both ends of the crossbar 12. The bottom end of the connecting rod 13 is glued and fixed to the top end of the reinforcing end plate 4. The clamping component 14 has its opening facing downward. The clamping component 14 is adapted to the base end plate 1, so that the clamping component 14 can be stably clamped at the top end of the base end plate 1.

[0061] When welding the reinforcing end plate 4, the connecting rod 13 is pre-attached to the top of the reinforcing end plate 4, and then the clamping member 14 is clamped to the top of the base end plate 1. This allows the reinforcing end plate 4 and the base end plate 1 to be quickly aligned, facilitating subsequent welding. The auxiliary positioning member 11 also improves the relative stability of the reinforcing end plate 4 and the base end plate 1 during construction, preventing misalignment during welding and effectively improving construction efficiency and accuracy. After welding, the auxiliary positioning member 11 does not need to be removed and does not affect the stress on the end plate joint. It is especially suitable for end plate joints with complex structures and limited visibility, where workers cannot quickly and accurately determine whether the reinforcing end plate 4 and the base end plate 1 are aligned. By setting up the auxiliary positioning member 11, efficient and accurate connection between the reinforcing end plate 4 and the base end plate 1 can be achieved without dismantling the existing structure.

[0062] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0065] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A light steel structure end plate splicing and reinforcement system, characterized in that, Includes two sets of basic end plates (1); The two sets of foundation end plates (1) are attached together and fixedly connected by foundation high-strength bolts (3). Foundation stiffening ribs (2) are fixed on the foundation end plates (1). The foundation end plates (1) and the foundation stiffening ribs (2) are both fixed to the web plate (5) of the steel beam. The base end plate (1) is fixed with a reinforcing end plate (4) on both sides. The two reinforcing end plates (4) on the same side are attached together and fixedly connected by reinforcing high-strength bolts (6). The reinforcing end plate (4) is fixed with a reinforcing stiffening rib (7). The reinforcing stiffening rib (7) corresponds one-to-one with the base stiffening rib (2). The reinforcing stiffening rib (7) is aligned with and fixed to the corresponding base stiffening rib (2).

2. The light steel structure end plate splicing and reinforcement system according to claim 1, characterized in that, Two sets of flange stiffening ribs (10) are fixed on the reinforcing end plate (4). The two sets of flange stiffening ribs (10) are fixed to the upper flange (8) and the lower flange (9) of the steel beam, respectively. The upper flange (8) and the lower flange (9) of the steel beam are both fixed to the foundation end plate (1).

3. The light steel structure end plate splicing and reinforcement system according to claim 1, characterized in that, The reinforcing end plate (4) has the same thickness as the basic end plate (1).

4. The light steel structure end plate splicing and reinforcement system according to claim 1, characterized in that, The reinforcing end plate (4) is made of the same material as the basic end plate (1).

5. The light steel structure end plate splicing and reinforcement system according to claim 1, characterized in that, The number of the reinforcing high-strength bolts (6) is the same as the number of the basic high-strength bolts (3).

6. The light steel structure end plate splicing and reinforcement system according to claim 1, characterized in that, The reinforcing end plate (4) has a bevel, and the reinforcing end plate (4) is welded to the base end plate (1) with equal strength.

7. The light steel structure end plate splicing and reinforcement system according to claim 1, characterized in that, The reinforcing stiffener (7) and the reinforcing end plate (4) are fixed by a bevel weld or a fillet weld.

8. The light steel structure end plate splicing and reinforcement system according to claim 1, characterized in that, The reinforcing stiffener (7) and the basic stiffener (2) are fixed together by a bevel weld or a fillet weld.

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