Temporary fixing frame for adding T-shaped steel to lower flange of steel beam

Abstract

The utility model relates to a temporary fixing frame, belongs to the technical field of steel structure reinforcement, and particularly relates to a temporary fixing frame for adding T-shaped steel to a lower flange of a steel beam, which comprises the steel beam arranged on a floor slab and a fixing frame assembly. The T-shaped steel is fixedly mounted at the bottom of the steel beam; the multiple fixing frame assemblies comprise fixing frame hanging plates welded to the two sides of the steel beam. The utility model achieves the effects of shortening the construction period and reducing the work amount, and solves the problems that the existing construction method cannot deal with the reinforcement between the T-shaped steel and the steel beam during reconstruction and extension, the construction environment of the reconstruction and extension project is complicated, the temporary fixed operation range of the welded T-shaped steel is limited, and in addition, the welded T-shaped steel is large in length-width ratio, and the construction cost is low. And during welding, the positioning is difficult.

Description

Technical Field

[0001] This utility model relates to the field of steel structure reinforcement technology, and in particular to a temporary fixing frame for adding T-shaped steel to the lower flange of a steel beam. Background Technology

[0002] Renovation and expansion are the main means of urban renewal, which can effectively improve the functionality and value of the original building structure. Steel structure reinforcement, as the most basic construction technology for renovation and expansion, is an important means to ensure building safety and extend its service life.

[0003] A search revealed Chinese patent CN110605464B, which discloses a welding method for preventing deformation of T-shaped steel flanges. This method addresses the technical problems of existing technologies, such as the easy bending and deformation of the flanges after welding T-shaped steel, leading to large amounts of post-weld correction, and the need for separate temporary welding supports with frequent adjustments during submerged arc welding. This invention uses a flange deformation prevention fixture to connect two T-shaped steels into an H-shape for welding. The T-shaped steel includes flanges and webs. The flange deformation prevention fixture includes temporary connecting plates, with both ends of the temporary connecting plates spot-welded to the outer surfaces of the webs of the two T-shaped steels. All temporary connecting plates are equidistantly distributed. This invention effectively reduces the bending deformation of the T-shaped steel flanges during welding, reduces the amount of post-weld correction, and eliminates the need for temporary welding supports during submerged arc welding, thus reducing welding difficulty and significantly improving the efficiency of T-shaped steel welding.

[0004] Based on the above search methods combined with existing technologies;

[0005] While the aforementioned patents reduce the difficulty of welding, they cannot address the reinforcement between T-shaped steel and steel beams during renovation and expansion projects. Furthermore, the complex construction environment of renovation and expansion projects limits the scope of temporary fixing operations for the welded T-shaped steel. In addition, the welded T-shaped steel has a large length-to-width ratio, making it prone to twisting and slipping, and positioning is difficult during welding, thus presenting certain limitations. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model proposes a temporary fixing frame with T-shaped steel added to the lower flange of a steel beam, which eliminates the need for a support frame, shortens the construction period, reduces the amount of work, and improves construction efficiency.

[0007] The technical solution to achieve the purpose of this utility model is: a temporary fixing frame with T-shaped steel added to the lower flange of a steel beam, including a steel beam, the steel beam being set on a floor slab, and also including a fixing frame assembly;

[0008] T-shaped steel, which is fixedly installed at the bottom of the steel beam;

[0009] Multiple fixing frame assemblies are provided, and each fixing frame assembly includes fixing frame hanging plates welded to both sides of the steel beam.

[0010] Preferably, the bottom of the T-shaped steel is provided with a fixed frame base plate, the surface of the fixed frame base plate is provided with a jack, the top of the jack abuts against the bottom of the T-shaped steel, and multiple support blocks are fixedly installed between the bottom of the steel beam and the T-shaped steel.

[0011] Preferably, a plurality of hanging rods are threadedly installed between the fixed frame hanging plate and the fixed frame base plate. Each hanging rod has a pair of bolts threadedly installed between its top and the fixed frame hanging plate, and a pair of bolts threadedly installed between its bottom and the fixed frame base plate.

[0012] Compared with existing technologies, the significant advantages of this invention are:

[0013] Firstly, this utility model has a weak impact on welding construction, and the positioning is accurate, the welding effect is good, the installation and fixing parts effectively prevent the steel beam from twisting, and at the same time, it eliminates the need for support frames, shortens the construction period, reduces the amount of work, has high construction efficiency, and is less affected by the surrounding construction environment.

[0014] Secondly, the overall construction cost of this utility model is low, and it has good economic benefits and social value. In addition, the structure is highly practical and has broad application prospects.

[0015] This solution addresses the limitations of existing construction methods in reinforcing T-beams and steel beams during renovation and expansion projects. It also addresses the challenges posed by the complex construction environment of renovation and expansion projects, which restricts the temporary fixing range of the welded T-beams. Furthermore, the welded T-beams have a large length-to-width ratio, making them prone to twisting and slipping, and pose difficulties in positioning during welding. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural schematic diagram provided by this utility model;

[0018] Figure 2 This is a side view structural diagram provided by this utility model;

[0019] Figure 3 This is a front view structural diagram provided by this utility model;

[0020] Figure 4 This is a schematic diagram of the fixing frame assembly provided by this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Steel beam; 2. T-shaped steel; 3. Jack; 4. Fixing frame hanging plate; 5. Fixing frame base plate; 6. Support block; 7. Hanging rod; 8. Bolt 1; 9. Bolt 2. Detailed Implementation

[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. 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 protection scope of the present invention.

[0024] This utility model provides an improved temporary fixing frame with T-shaped steel added to the lower flange of a steel beam. The technical solution of this utility model is as follows:

[0025] like Figures 1-4 As shown, a temporary fixing frame with a steel beam lower flange and a T-shaped steel is provided, including a steel beam 1, which is installed on the floor slab and maintains the stability of the floor slab and the building. It also includes a fixing frame assembly.

[0026] T-shaped steel 2 is fixedly installed at the bottom of steel beam 1. T-shaped steel 2 has strong load-bearing capacity and regular shape, making it easy to install and connect.

[0027] Multiple fixing frame assemblies are provided. The fixing frame assembly includes fixing frame hanging plates 4 welded to both sides of the steel beam 1. The overall construction cost of the fixing frame assembly is low, and it has good economic and social value and broad application prospects.

[0028] Furthermore, a fixed frame base plate 5 is provided at the bottom of the T-shaped steel 2, and a jack 3 is provided on the surface of the fixed frame base plate 5. The top of the jack 3 abuts against the bottom of the T-shaped steel 2. Multiple support blocks 6 are fixedly installed between the bottom of the steel beam 1 and the T-shaped steel 2. The jack 3 has a fine adjustment function, which can accurately control the lifting height and ensure stability during the lifting process.

[0029] Furthermore, multiple hangers 7 are threadedly installed between the fixed frame hanging plate 4 and the fixed frame base plate 5. Each hanger 7 has a pair of bolts 8 threadedly installed between its top and the fixed frame hanging plate 4, and a pair of bolts 9 threadedly installed between its bottom and the fixed frame base plate 5. This facilitates disassembly and installation, benefits workers, shortens the construction period, and improves construction efficiency.

[0030] The specific working method is as follows: First, the T-shaped steel 2 is placed at the bottom of the steel beam 1. The fixing bracket plate 4 and the fixing bracket base plate 5 of the fixing bracket assembly are connected to the hanger 7 by bolt 1 8 and bolt 2 9 respectively. The fixing bracket plate 4 is welded above the lower flange plate of the steel beam 1. The jack 3 is placed between the fixing bracket base plate 5 and the lower flange plate of the T-shaped steel 2. The T-shaped steel 2 is pressed tightly against the lower flange plate of the steel beam 1 by the jack 3. The support block 6 is placed on both sides of the web of the T-shaped steel 2 to restrict the T-shaped steel 2 from twisting to both sides. The support block 6 is fixedly installed between the steel beam 1 and the T-shaped steel 2 to improve the support force and maintain the stability of the structure.

[0031] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A temporary fixing frame with T-shaped steel added to the lower flange of a steel beam, comprising a steel beam (1), characterized in that: The steel beam (1) is installed on the floor slab and also includes; T-shaped steel (2), which is fixedly installed at the bottom of the steel beam (1); The fixing frame assembly is provided in multiple ways, and the fixing frame assembly includes fixing frame hanging plates (4) welded to both sides of the steel beam (1).

2. The temporary fixing frame with T-shaped steel added to the lower flange of a steel beam according to claim 1, characterized in that: The bottom of the T-shaped steel (2) is provided with a fixed frame base plate (5), and the surface of the fixed frame base plate (5) is provided with a jack (3). The top of the jack (3) abuts against the bottom of the T-shaped steel (2), and multiple support blocks (6) are fixedly installed between the bottom of the steel beam (1) and the T-shaped steel (2).

3. A temporary fixing frame with T-shaped steel added to the lower flange of a steel beam according to claim 1, characterized in that: Multiple hangers (7) are threaded between the fixed frame hanging plate (4) and the fixed frame base plate (5). Each hanger (7) has a pair of bolts (8) threaded between its top and the fixed frame hanging plate (4), and each hanger (7) has a pair of bolts (9) threaded between its bottom and the fixed frame base plate (5).

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