A double-angle steel combined T-shaped section reinforcing structure under axial force

Abstract

This invention discloses an axially loaded double-angle steel combined T-section reinforcement structure, including two sets of reinforced members. Each set of reinforced members has a node plate connected to its end, and a filler plate welded to the middle of each set. The reinforced members are spliced ​​together with first reinforced members, and the reinforced members are connected and fixed to the first reinforced members by intermittent welds. Fixed plates are symmetrically connected to the top and bottom of each reinforced member. The reinforced members are made of angle steel, and the combined cross-section of the two sets of reinforced members is a "T" shape. This axially loaded double-angle steel combined T-section reinforcement structure, using two symmetrical sets of first reinforced members, ensures uniform stress on the overall members, thereby effectively improving the overall load-bearing capacity. Furthermore, the centroid of the members remains essentially consistent before and after reinforcement, significantly improving the load-bearing capacity. Two calculation examples demonstrate that the structural load-bearing capacity can be increased by more than 70%, making it suitable for widespread application.

Description

Technical Field

[0001] This invention relates to the field of structural reinforcement technology for civil engineering, specifically a reinforced structure with a combined T-shaped section of axially stressed double angle steel. Background Technology

[0002] After testing and evaluating steel structural members with T-shaped cross-sections of double angle steel under axial stress, reinforcement is required due to increased load or weakened cross-section. Therefore, welding reinforcement is often used. However, the selection of welded parts and the welding splicing method have a significant impact on the bearing capacity of the reinforced members. The existing selection of welded parts and welding splicing methods have poor reinforcement effects. Therefore, this invention proposes a welded part cross-section form and welding splicing method to address the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a reinforced structure with a combined T-section of axially stressed double angle steel to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a reinforced structure of axially stressed double angle steel combined T-section, including a reinforced member, wherein two sets of reinforced members are provided, and the ends of the two sets of reinforced members are connected with node plates, and the middle of the two sets of reinforced members are welded with filler plates. The reinforced member is spliced ​​with a first reinforced member, and the reinforced member and the first reinforced member are connected and fixed by intermittent welds. The reinforced member is symmetrically connected with fixing plates on its upper and lower sides.

[0005] Preferably, the material of the reinforced component is angle steel, and the cross section of the two sets of reinforced components is a "T" shaped structure. By splicing the two sets of reinforced components, the structure of the entire device can be plasticized.

[0006] Preferably, the front end face of the node plate is also symmetrically fixed with limiting plates, and the limiting plates contact the reinforced parts to achieve positioning. Through the function of the limiting plates, the two sets of reinforced parts can be easily aligned when splicing, improving the convenience of processing.

[0007] Preferably, the material of the first reinforcing member is the same as that of the member being reinforced, and the asymmetry axis of the first reinforcing member coincides with the asymmetry axis of the member being reinforced. By limiting the positions of the first reinforcing member and the member being reinforced, it can be ensured that the entire member is subjected to uniform force.

[0008] Preferably, the length of the intermittent weld at the end between the first reinforcing member and the reinforced member is the same as the length of the end node plate between the first reinforcing member and the reinforced member along the length direction. By limiting the intermittent weld and the node plate, it can be ensured that the entire end of the member is subjected to the same force, thereby increasing the load of the member.

[0009] Preferably, the thickness of the filler plate is equal to the thickness of the node plate, and the filler plates are evenly distributed between the two sets of reinforced members. By limiting the thickness of the filler plate and the node plate, normal welding of the two sets of reinforced members can be ensured, thereby ensuring the flatness of the members.

[0010] Preferably, two sets of clamping plates are fixed on the fixing plate, and the two sets of fixing plates respectively contact the first reinforcing member and the reinforced member to achieve positioning. When assembling the first reinforcing member and the reinforced member, the fixing plate and clamping plate can achieve positioning of the first reinforcing member and the reinforced member, which facilitates the assembly of the first reinforcing member and the reinforced member.

[0011] Preferably, a pad is fixed on the fixing plate. The pad is disposed between the first reinforcing member and the reinforced member. By using the pad, the distance between the first reinforcing member and the reinforced member can be determined, thereby improving the ease of assembly of the first reinforcing member and the reinforced member.

[0012] Preferably, the pad is further fixed with a locking block, and the locking block is nested in the gap formed by the first reinforcing member and the reinforced member. Through the nesting and positioning function of the locking block, the first reinforcing member and the reinforced member can be positioned again, ensuring the normal assembly of the first reinforcing member and the reinforced member.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the axially stressed double angle steel combined T-section reinforcement structure adopts two sets of first reinforcement components that are symmetrical on the left and right, which can ensure that the overall members are subjected to uniform stress, thereby effectively improving the overall members’ bearing capacity. Moreover, the centroids of the members before and after reinforcement are basically consistent, which can significantly improve the members’ bearing capacity. Furthermore, two calculation examples show that the structural bearing capacity can be increased by more than 70%, making it suitable for widespread application. Attached Figure Description

[0014] Figure 1 This is a frontal three-dimensional structural diagram of the axially stressed double angle steel combined T-section reinforcement structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall front view of the axially stressed double angle steel combined T-section reinforcement structure of the present invention;

[0016] Figure 3 This is a top view schematic diagram of the axially stressed double angle steel combined T-section reinforcement structure of the present invention;

[0017] Figure 4 This is a three-dimensional exploded view of the overall composition of the axially stressed double angle steel combined T-section reinforcement structure of the present invention;

[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the fixing plate of the present invention;

[0019] Figure 6 This is a schematic diagram of the stress ratio detection process for the axially stressed double angle steel combined T-section reinforcement structure of the present invention;

[0020] Figure 7 The diagram shows the influence of different initial stress ratios on the load-displacement curves and related data tables of the axially stressed double angle steel combined T-section reinforced structure of the present invention.

[0021] In the figure: 1. Reinforced component; 2. Node plate; 201. Limiting plate; 3. First reinforcement component; 4. Intermittent weld; 5. Filler plate; 6. Fixing plate; 601. Clamping plate; 7. Pad; 701. Locking block. Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-6 The present invention provides a technical solution: a T-shaped cross-section reinforcement structure of axially stressed double angle steel, including a reinforced member 1, which is provided in two sets, and the ends of the two sets of reinforced members 1 are connected to node plates 2, and the middle of the two sets of reinforced members 1 are welded to filler plates 5. The reinforced member 1 and the first reinforced member 3 are spliced ​​together, and the reinforced member 1 and the first reinforced member 3 are connected and fixed by intermittent welds 4. The reinforced member 1 is symmetrically connected with fixing plates 6 on the upper and lower sides.

[0024] The material of the reinforced component 1 is angle steel, and the cross section of the two sets of reinforced components 1 is a "T" shaped structure; the front end face of the node plate 2 is also symmetrically fixed with a limiting plate 201, and the limiting plate 201 contacts the reinforced component 1 to achieve positioning; the thickness of the filler plate 5 is equal to the thickness of the node plate 2, and the filler plate 5 is evenly distributed between the two sets of reinforced components 1.

[0025] When using this axially loaded double angle steel combined T-section reinforcement structure, such as Figures 1-4 As shown, the entire member is first assembled. The node plate 2 is aligned with the two ends of the two sets of reinforced parts 1. With the positioning function of the limiting plate 201, the installation positions of the two sets of reinforced parts 1 are the same. Welding is then performed to assemble the two sets of reinforced parts 1. Then, welded filler plates 5 are filled at equal intervals in the gap between the two sets of reinforced parts 1 for support, so as to prevent the two sets of reinforced parts 1 from deforming, thus completing the shaping of the "T"-shaped member.

[0026] The first reinforcing member 3 is made of the same material as the reinforced member 1, and the asymmetry axis of the first reinforcing member 3 coincides with the asymmetry axis of the reinforced member 1. The length of the intermittent weld 4 at the end between the first reinforcing member 3 and the reinforced member 1 is the same as the length of the end node plate 2 at the end between the first reinforcing member 3 and the reinforced member 1 along the length direction. Two sets of clamping plates 601 are fixed on the fixing plate 6, and the two sets of fixing plates 6 respectively contact the first reinforcing member 3 and the reinforced member 1 to achieve positioning. A pad 7 is fixed on the fixing plate 6, and the pad 7 is set between the first reinforcing member 3 and the reinforced member 1. A locking block 701 is also fixed on the pad 7, and the locking block 701 is nested in the gap formed by the first reinforcing member 3 and the reinforced member 1.

[0027] When assembling the reinforced component 1 and the first reinforced component 3, such as Figures 1-5 As shown, the fixing plate 6 is fitted with the reinforced part 1. At this time, the reinforced part 1 is nested between the clamping plate 601 and the pad 7. Then, the first reinforced part 3 is nested with the gap between the clamping plate 601 and the pad 7 on the other side, thereby realizing the positioning and assembly of the reinforced part 1 and the first reinforced part 3. With the nesting and positioning function of the locking block 701, the asymmetric axis (xx) of the first reinforced part 3 and the asymmetric axis (xx) of the reinforced part 1 coincide with each other. That is, the parallel legs of the first reinforced part 3 and the reinforced part 1 are symmetrical about the asymmetric axis (xx). The length of the end weld between the first reinforced part 3 and the reinforced part 1 and the length of the end node plate 2 are the same along the length direction. The first reinforced part 3 and the reinforced part 1 are connected by the intermittent weld 4, thereby completing the welding assembly of the first reinforced part 3 and the reinforced part 1, effectively improving the load-bearing capacity of the entire member. After the entire member is assembled, the actual experimental test data is as follows: the load-bearing capacity of the modified structure can be increased by more than 70%, which is suitable for widespread promotion. This is the working principle of the axially loaded double angle steel combined T-section reinforcement structure.

[0028] During testing, the load-displacement curves of the axially loaded double-angle steel composite T-section reinforced structure of this invention, showing the effect of different initial stress ratios, were observed. Figure 6 As shown, considering the mechanical properties at temperature, boundary conditions are set, residual stress and deformation are considered, initial stress is applied to the original structure, and welding reinforcement is carried out while keeping the load constant. The welding effect is input into the structure, and the failure simulation of the structure is carried out after welding is completed, so as to obtain relevant test data.

[0029] The load-displacement curves and related data of the axially loaded double-angle steel composite T-section reinforced structure of this invention are as follows: Figure 7 As shown.

[0030] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double angle section combined T-section reinforced structure under axial force, comprising a reinforced member (1), characterized in that: The reinforced component (1) is provided in two sets, and the ends of the two sets of reinforced components (1) are connected to node plates (2), and the middle of the two sets of reinforced components (1) is welded to filler plates (5). The reinforced component (1) and the first reinforced component (3) are spliced ​​together. The reinforced component (1) and the first reinforced component (3) are connected and fixed by intermittent welds (4). The reinforced component (1) is symmetrically connected with fixing plates (6) on the top and bottom. Two sets of clamping plates (601) are fixed on the fixing plates (6), and the two sets of fixing plates (6) respectively contact the first reinforced component (3) and the reinforced component (1) to achieve positioning. A pad (7) is fixed on the fixing plate (6), and the pad (7) is disposed between the first reinforcing member (3) and the reinforced member (1); The pad (7) is also fixed with a locking block (701), and the locking block (701) is nested in the gap formed by the first reinforcing member (3) and the reinforced member (1).

2. The combined T-section reinforcement structure of claim 1, wherein: The material of the reinforced component (1) is angle steel, and the cross section of the two sets of reinforced components (1) is a "T" shaped structure.

3. The axially loaded double angle steel combined T-section reinforcement structure according to claim 1, characterized in that: The front end face of the node plate (2) is also symmetrically fixed with a limiting plate (201), and the limiting plate (201) contacts the reinforced part (1) to achieve the positioning function.

4. The axially loaded double angle steel combined T-section reinforcement structure according to claim 1, characterized in that: The material of the first reinforcement member (3) is the same as that of the reinforcement member (1), and the asymmetry axis of the first reinforcement member (3) coincides with the asymmetry axis of the reinforcement member (1).

5. The axially loaded double angle steel combined T-section reinforcement structure according to claim 1, characterized in that: The length of the end intermittent weld (4) between the first reinforcement (3) and the reinforcement (1) is the same as the length of the end node plate (2) between the first reinforcement (3) and the reinforcement (1) along the length direction.

6. The axially loaded double angle steel combined T-section reinforcement structure according to claim 1, characterized in that: The thickness of the filler plate (5) is equal to the thickness of the node plate (2), and the filler plate (5) is evenly distributed between the two sets of reinforced parts (1).

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