A cross-shaped steel structure and a processing technology thereof

Abstract

This application relates to specific technical fields, and in particular to a cross steel structure and its processing technology; it includes an I-beam, two T-beams, and a limiting component; the two T-beams are positioned on both sides of the I-beam by the limiting component, and the cross section formed by the T-beams and the I-beam is cross-shaped; the limiting component includes a first limiting block and a second limiting block; the first limiting block is positioned on the I-beam; the second limiting block is movably positioned on the I-beam, and the first and second limiting blocks are located on the same side of the I-beam; wherein, the first and second limiting blocks form a limiting space for accommodating the T-beams; by placing the T-beams within the limiting space formed by the first and second limiting blocks, the phenomenon of relative displacement when the T-beams and the I-beams are fixed is reduced, the processing accuracy of the cross steel is improved, the stress of the cross steel is relatively balanced, and thus the structural strength of the cross steel is improved.

Description

Technical Field

[0001] This application relates to specific technical fields, and in particular to a cross-shaped steel structure and its processing technology. Background Technology

[0002] With the development of infrastructure construction, new requirements have been placed on the construction cycle of buildings, and steel structure buildings have emerged as a result. Due to the advantages of steel structure, such as convenient installation, fast installation speed and good stress performance, it is currently favored by the construction industry. The most commonly used structure in steel structure buildings is cross steel, which is named after its cross-shaped cross section.

[0003] In related technologies, when processing cross steel, first weld steel plates to both sides of a steel plate to form an I-beam, then weld steel plates to another steel plate to form a T-beam. Two T-beams are then made. One T-beam is welded to one side of the I-beam, and the other T-beam is welded to the other side of the I-beam. The T-beams on both sides are symmetrically welded to form a cross shape. Finally, multiple studs are welded to the outside of the welded steel plates to produce the cross steel.

[0004] The aforementioned technologies have the following technical defects: When processing cross steel, a T-shaped steel is welded to one side of an I-beam, and another T-shaped steel is welded to the other side of the I-beam. Since the I-beam has a certain length, when welding the T-shaped steel to the I-beam, there is a phenomenon of relative movement between the T-shaped steel and the I-beam, which causes stress concentration in the welded cross steel, thereby reducing the structural strength of the cross steel. Summary of the Invention

[0005] To improve the structural strength of cross steel, this application provides a cross steel structure and its processing technology.

[0006] Firstly, this application provides a cross-shaped steel structure, employing the following technical solution:

[0007] A cross-shaped steel structure includes an I-beam, two T-beams, and a limiting component;

[0008] Two T-shaped steel plates are disposed on both sides of the I-beam by the limiting component, wherein the two T-shaped steel plates are symmetrically arranged about the length direction of the I-beam, and the cross section formed by the T-shaped steel plates and the I-beam is cross-shaped;

[0009] The limiting component includes a first limiting block and a second limiting block;

[0010] The first limiting block is disposed on the I-beam plate;

[0011] The second limiting block is movably disposed on the I-beam plate, and the first limiting block and the second limiting block are located on the same side of the I-beam plate; wherein, the first limiting block and the second limiting block form a limiting space for accommodating the T-shaped steel plate.

[0012] By adopting the above technical solution, a T-shaped steel plate is placed within the limiting space formed by the first and second limiting blocks. The T-shaped steel plate is adjusted so that it is pressed against the first limiting block. The second limiting block is then moved closer to the T-shaped steel plate, pressing against it. The T-shaped steel plate is thus limited and fixed within the limiting space, achieving the purpose of limiting one T-shaped steel plate. The above operation is repeated to fix another T-shaped steel plate to the other side of the I-beam, thereby forming a cross steel. By placing the T-shaped steel plate within the limiting space formed by the first and second limiting blocks, on the one hand, the process of pre-setting a baseline on the I-beam is reduced in traditional cross steel processing, improving the efficiency of cross steel processing to a certain extent. On the other hand, it reduces the occurrence of relative displacement between the T-shaped steel plate and the I-beam when they are fixed, improving the processing accuracy of the cross steel and making the stress of the cross steel relatively balanced, thereby improving the structural strength of the cross steel.

[0013] Optionally, it also includes a stabilizing member for fixing the second limiting block to the I-beam plate;

[0014] The stabilizing component includes a first bolt;

[0015] The first bolt passes through the second limiting block and can be threadedly connected to the I-beam.

[0016] By adopting the above technical solution, the first bolt is rotated, the first bolt passes through the second limiting block, and the second bolt passes through the limiting block and is fixed to the I-beam, thereby achieving the purpose of fixing the second limiting block and thus achieving the limiting and fixing of the T-shaped steel plate.

[0017] Optionally, the limiting component further includes a calibration element for improving the perpendicularity of the second limiting block to the I-beam plate;

[0018] The calibration component includes a first calibration block, a second calibration block, and a fixing component;

[0019] The first calibration block is located on the side of the second limiting block;

[0020] The second calibration block is slidably disposed on the first calibration block, wherein the length direction of the first calibration block is perpendicular to the length direction of the second calibration block, and the second calibration block can abut against the I-beam plate;

[0021] The fastener is provided on the second calibration block and is used to fix the second calibration block to the I-beam plate.

[0022] By adopting the above technical solution, the second calibration block is adjusted so that it is close to the I-beam plate, and the second limiting block is pressed against the I-beam plate. The fixing component is adjusted to fix the second calibration block and the I-beam plate, thus achieving the purpose of fixing the second calibration block and the I-beam plate. Since the first calibration block and the second calibration block are set perpendicularly, by adjusting the second calibration block, the second calibration block drives the first calibration block to move, and the first calibration block drives the second limiting block to move, so that the second limiting block and the I-beam plate remain perpendicular, which improves the connection accuracy between the T-beam plate and the I-beam plate, and thus improves the accuracy of the cross steel processing.

[0023] Optionally, the fastener includes a second bolt;

[0024] The second bolt is threaded onto the second calibration block, and the second bolt is used to fix the second calibration block to the I-beam plate.

[0025] By adopting the above technical solution, the second bolt is rotated, the second bolt moves on the second west calibration block, and the second bolt extends into the I-beam plate, thereby fixing the second calibration block and the I-beam plate.

[0026] Optionally, it also includes a third bolt for securing the first calibration block to the second calibration block;

[0027] The third bolt is located on the first calibration block, passes through the first calibration block, and can abut against the second limiting block.

[0028] By adopting the above technical solution, rotating the third bolt causes it to move, pass through the first calibration block, and abut against the second limiting block, thereby achieving the purpose of fixing the first calibration block onto the second limiting block.

[0029] Optionally, it also includes a connecting assembly for extending the length of the cross steel;

[0030] The connection assembly includes a connecting block and a clamping component;

[0031] The connecting block is disposed on one side of the I-beam plate, and the other side of the I-beam plate is provided with a connecting groove for the connecting block on the adjacent I-beam plate to extend into. The connecting block extends into the connecting groove and is slidably connected to the I-beam plate.

[0032] The clamping member is provided on the I-beam plate and is used to fix the connecting block to the adjacent I-beam plate.

[0033] By adopting the above technical solution, when cross-shaped steel is needed for construction in a small space, the movement of the I-beams causes the connecting blocks to move. The connecting blocks extend into the connecting grooves of the upper I-beams. By adjusting the two I-beams and adjusting the clamping components, the clamping components fix the two adjacent I-beams, thereby extending the overall length of the cross-shaped steel. By adjusting the two adjacent I-beams, the connecting blocks extend into the connecting grooves, and the clamping components are adjusted to fix the adjacent I-beams, thereby extending the length of the cross-shaped steel. This makes it easier to construct cross-shaped steel in small spaces and reduces the occurrence of situations where conventional cross-shaped steel is difficult to build in small areas.

[0034] Optionally, the cross-sectional area of ​​the connecting block gradually increases from one side of the other I-beam to the other side, wherein the connecting groove is configured to cooperate with the connecting block.

[0035] By adopting the above technical solution, the connecting block is set such that the cross-section gradually increases from one side of the adjacent I-beam to the other side. On the one hand, this facilitates the connecting block to extend into the connecting groove, improving the installation efficiency between adjacent I-beams and thus improving the efficiency of cross steel extension. On the other hand, the setting of the connecting block increases the contact area between the connecting block and the side wall of the connecting groove, improving the connection strength between adjacent I-beams and thus improving the strength of the cross steel.

[0036] Optionally, the clamping element includes a fourth bolt;

[0037] The fourth bolt is disposed on the I-beam plate, passes through the I-beam plate and the connecting block, and the axial direction of the fourth bolt is perpendicular to the installation direction of the adjacent I-beam plate.

[0038] By adopting the above technical solution, the fourth bolt is adjusted and rotated, and the fourth bolt passes through the I-beam and the connecting block to achieve the fixation between adjacent I-beams.

[0039] Optionally, the limiting component further includes an indicator for indicating two symmetrical second limiting blocks;

[0040] The indicator includes an indicator block; the indicator block is disposed on the second limiting block, and another indicator groove that cooperates with the indicator block is provided on the opposite second limiting block. When the indicator groove corresponds to the indicator block, the two second limiting blocks are located on the same horizontal line.

[0041] By adopting the above technical solution, the second limiting block moves, and the second limiting block drives the indicator block to move. When the indicator block is opposite to the indicator groove, the two symmetrical second limiting blocks are located on the same horizontal line, which improves the limiting and fixing accuracy of the T-shaped steel plate, and thus improves the machining accuracy of the cross steel.

[0042] Secondly, this application discloses a processing technology for a cross-shaped steel structure:

[0043] The processing steps include the following:

[0044] S1: Positioning of T-shaped steel plate and I-beam steel plate;

[0045] S11: Place the T-shaped steel plate in the limiting space formed by the first limiting block and the second limiting block, and press the T-shaped steel plate against the first limiting block. Adjust the second limiting block so that the second limiting block presses against the T-shaped steel plate.

[0046] S2: T-shaped steel plate is fixed to I-beam steel plate;

[0047] S21: Adjust the second limit block so that the second limit block is pressed against the other side of the T-shaped steel plate. Use a stabilizing component to press the second limit block against the I-beam steel plate.

[0048] S3: Calibration of the perpendicularity between T-shaped steel plate and I-beam steel plate;

[0049] S31: Use the third bolt to fix the first calibration block and the second limit block, adjust the second calibration block, the second calibration block is pressed against the I-beam, and use the fastener to fix the second calibration block to the I-beam;

[0050] S4: Connection and fixation between adjacent I-beams, with extended cross steel length;

[0051] S41: Adjacent I-beams move closer to each other, and the connecting block of the next I-beam extends into the connecting groove of the previous I-beam. The fourth bolt is used to fix the I-beam to the connecting block. The above operation is repeated to extend the length of the cross steel.

[0052] In summary, this application includes at least one of the following beneficial technical effects:

[0053] 1. This application places the T-shaped steel plate within the limiting space formed by the first limiting block and the second limiting block. On the one hand, it reduces the need to pre-set the baseline on the I-beam in the traditional processing of cross steel, which improves the efficiency of processing cross steel to a certain extent. On the other hand, it reduces the occurrence of relative displacement between the T-shaped steel plate and the I-beam when the T-shaped steel plate and the I-beam are fixed, which improves the processing accuracy of cross steel, makes the stress of the cross steel relatively balanced, and thus improves the structural strength of the cross steel.

[0054] 2. This application achieves the purpose of fixing the second calibration block and the I-beam by adjusting the second calibration block, which is close to the I-beam plate, and the second limiting block abutting against the I-beam plate. The fixing component is adjusted to fix the second calibration block and the I-beam plate. Since the first calibration block and the second calibration block are set perpendicularly, by adjusting the second calibration block, the second calibration block drives the first calibration block to move, and the first calibration block drives the second limiting block to move, so that the second limiting block and the I-beam plate remain perpendicular, which improves the connection accuracy between the T-beam plate and the I-beam plate, and thus improves the machining accuracy of the cross steel.

[0055] 3. This application achieves the fixation between adjacent I-beams by adjusting two adjacent I-beam plates, with the connecting block extending into the connecting groove and the clamping component adjusted, thereby extending the length of the cross steel. This facilitates the construction of cross steel in smaller spatial areas and reduces the occurrence of the problem that conventional cross steel is difficult to construct in smaller areas. Attached Figure Description

[0056] Figure 1 This is a schematic diagram of a cross-shaped steel structure according to an embodiment of this application;

[0057] Figure 2 yes Figure 1 Enlarged view of part A;

[0058] Figure 3 This is a schematic diagram of a cross-shaped steel structure from another perspective, according to an embodiment of this application.

[0059] Figure 4 This is a schematic diagram of the structure of the calibration component in the embodiment of this application.

[0060] Reference numerals: 1. I-beam plate; 11. Moving groove; 12. Fixing hole; 13. Connecting groove; 2. T-shaped steel plate; 3. Limiting component; 31. First limiting block; 32. Second limiting block; 321. Indicator groove; 33. Stabilizer; 331. First bolt; 34. Calibration component; 341. First calibration block; 342. Second calibration block; 343. Fixing component; 3431. Second bolt; 344. Third bolt; 35. Indicator; 351. Indicator block; 4. Connecting component; 41. Connecting block; 42. Fourth bolt; 5. Stud. Detailed Implementation

[0061] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0062] This application discloses a cross-shaped steel structure.

[0063] Example 1:

[0064] Reference Figure 1A cross-shaped steel structure includes an H-beam 1, two T-beams 2, studs 5, a limiting component 3, and a connecting component 4. The two T-beams 2 are mounted on both sides of the H-beam 1 via the limiting component 3. The two T-beams 2 are symmetrically arranged about the length of the H-beam 1, and the cross-section formed by the T-beams 2 and the H-beam 1 is cross-shaped. The limiting component 3 is used to limit the T-beams 2 onto the H-beam 1, thereby reducing the need for pre-drawing reference points on the H-beam 1 and improving efficiency. On the one hand, the processing efficiency of the cross steel plate is improved, and on the other hand, the T-shaped steel plate 2 can be limited, reducing the phenomenon of reverse displacement between the T-shaped steel plate 2 and the I-shaped steel plate 1 when the T-shaped steel plate 2 and the I-shaped steel plate 1 are fixed, which improves the processing accuracy of the cross steel to a certain extent; the connecting component 4 is installed between adjacent I-shaped steel plates 1 to extend the length of the cross steel so that the cross steel can be assembled and used in a smaller space; the stud 5 is fixed to the outside of the I-shaped steel plate 1 and the T-shaped steel plate 2 by welding.

[0065] Reference Figure 1 , Figure 2 The limiting component 3 includes a first limiting block 31, a second limiting block 32, and a stabilizing member 33 for fixing the second limiting block 32 to the I-beam plate 1. The first limiting block 31 is fixed to the I-beam plate 1 by welding. The second limiting block 32 is movably installed on the I-beam plate 1, wherein the movement direction of the second limiting block 32 is perpendicular to the length direction of the I-beam plate 1, and the first limiting block 31 and the second limiting block 32 are located on the same side of the I-beam plate 1. The first limiting block 31 and the second limiting block 32 form a limiting space for accommodating the T-shaped steel plate 2.

[0066] Reference Figure 1 , Figure 2 To facilitate the subsequent re-fixation of the I-beam plate 1 and the T-beam plate 2, in this embodiment, the first limiting block 31 and the second limiting block 32 in a set of cross steel are set into three sets, and the three sets of first limiting blocks 31 and second limiting blocks 32 are evenly arranged along the length direction of the I-beam plate 1. A first welding space is left between adjacent first limiting blocks 31 for subsequent welding, and a second welding space is left between adjacent second limiting blocks 32 for subsequent welding.

[0067] Reference Figure 2 In this application, the stabilizing component 33 is preferably a first bolt 331; the first bolt 331 passes through the second limiting block 32 and can be threadedly connected to the I-beam plate 1; the second limiting block 32 is moved and pressed against one side of the T-shaped steel plate 2; the first bolt 331 is rotated and moves on the second limiting block 32; the first bolt 331 extends into the I-beam plate 1, thereby fixing the second limiting block 32 to the I-beam plate 1.

[0068] Reference Figure 2To facilitate the sliding of the second limiting block 32 on the I-beam plate 1, a sliding groove 11 for the second limiting block 32 is provided on the I-beam plate 1. The length direction of the sliding groove 11 is perpendicular to the length direction of the I-beam plate 1. At the same time, to facilitate the fixing of the first bolt 331 on the I-beam plate 1, a plurality of fixing holes 12 are provided on the groove wall of the sliding groove 11. The plurality of fixing holes 12 are evenly arranged along the length direction of the sliding groove 11.

[0069] Reference Figure 3 , Figure 4 To improve the perpendicularity of the connection between the T-shaped steel plate 2 and the I-beam steel plate 1, and thus improve the processing accuracy of the cross steel, the limiting assembly 3 also includes a calibration component 34 for improving the perpendicularity between the second limiting block 32 and the I-beam steel plate 1. The calibration component 34 includes a first calibration block 341, a second calibration block 342, and a fixing component 343. The first calibration block 341 is installed on the side of the second limiting block 32. The second calibration block 342 is slidably installed on the first calibration block 341, wherein the length direction of the first calibration block 341 is perpendicular to the length direction of the second calibration block 342, and the second calibration block 342 can abut against the I-beam steel plate 1. The fixing component 343 is installed on the second calibration block 342 and is used to fix the second calibration block 342 to the I-beam steel plate 1.

[0070] Reference Figure 4 In this embodiment, the fixing member 343 is preferably the second bolt 3431; the second bolt 3431 is threadedly connected to the second calibration block 342, and the second bolt 3431 is used to fix the second calibration block 342 to the I-beam plate 1; by rotating the second bolt 3431, the second bolt 3431 moves on the second calibration block 342 and passes through the I-beam plate 1, thereby fixing the second calibration block 342 to the I-beam plate 1. Since the movement of the second calibration block 342 drives the first calibration block 341 to move, the first calibration block 341 is perpendicular to the second calibration block 342, and the first calibration block 341 applies force to the second limiting block 32 to calibrate the perpendicularity of the second limiting block 32, thereby improving the processing accuracy of the cross steel.

[0071] Reference Figure 4 To facilitate the movement of the second limiting block 32 and reduce interference between the second calibration block 342 and the I-beam plate 1, this embodiment of the application further includes a third bolt 344 for fixing the first calibration block 341 and the second calibration block 342. The third bolt 344 is threaded onto the first calibration block 341, passes through the first calibration block 341, and can abut against the second limiting block 32. By rotating the third bolt 344, the third bolt 344 passes through the first calibration block 341 and is fixed to the second calibration block 342, thereby achieving the purpose of fixing the first calibration block 341 and the second calibration block 342.

[0072] Reference Figure 1 , Figure 3 The connecting component 4 includes a connecting block 41 and a clamping member; the connecting block 41 is fixed on one side of the I-beam plate 1, and a connecting groove 13 is provided on the other side of the I-beam plate 1 for the connecting block 41 on the adjacent I-beam plate 1 to extend into. The connecting block 41 extends into the connecting groove 13 and is slidably connected to the I-beam plate 1; the clamping member is installed on the I-beam plate 1 and is used to fix the connecting block 41 to the adjacent I-beam plate 1.

[0073] Reference Figure 1 , Figure 3 The connecting block 41 and the I-beam plate 1 can be fixed by welding, by bonding, by bolting, or by integral molding. Considering the connection strength between the connecting block 41 and the I-beam plate 1, as well as the processing efficiency of the connecting block 41 and the I-beam plate 1, this application adopts an integral molding casting method for the connecting block 41 and the I-beam plate 1.

[0074] Reference Figure 1 , Figure 3 To improve the connection efficiency between the connecting block 41 and the connecting groove 13, and to increase the connection strength between two adjacent I-beams 1, the cross-sectional area of ​​the connecting block 41 gradually increases from the side closest to the other I-beam 1 to the other side. The connecting groove 13 is configured to cooperate with the connecting block 41.

[0075] Reference Figure 3 In this embodiment, the clamping component is preferably a fourth bolt 42; the fourth bolt 42 is threadedly connected to the I-beam plate 1, and passes through the I-beam plate 1 and the connecting block 41. The axial direction of the fourth bolt 42 is perpendicular to the installation direction of the adjacent I-beam plate 1; by rotating the fourth bolt 42, the fourth bolt 42 moves on the I-beam plate 1, and passes through the I-beam plate 1 and the connecting block 41, thereby achieving the purpose of fixing the adjacent I-beam plate 1.

[0076] Reference Figure 2 , Figure 3 To further improve the precision of machining cross steel, the limiting component 3 of this application embodiment also includes an indicator 35 for indicating two symmetrical second limiting blocks 32; the indicator 35 includes an indicator block 351; the indicator block 351 is fixed on the second limiting block 32, and the other second limiting block 32 is provided with an indicator groove 321 that cooperates with the indicator block 351. When the indicator groove 321 corresponds to the indicator block 351, the two second limiting blocks 32 are located on the same horizontal line.

[0077] Reference Figure 1In this embodiment, the indicator block 351 is fixed on the side of the adjacent second limiting blocks 32 that are far apart from each other along the length direction of the I-beam plate 1. Since the second limiting blocks 32 in a set of cross steel structures in this application are set into three sets, in order to reduce material consumption and reduce the cost of processing the cross steel, the second limiting blocks 32 are set on the second limiting blocks 32 on both sides.

[0078] Reference Figure 2 , Figure 3 Since the adjacent I-beams in this embodiment adopt a splicable structure, in order to ensure that the connection is flush and reduce the connection gap, the indicator block 351 is slightly protruding on the second limiting block 32, so as to reduce the gap between the adjacent I-beams 1 while keeping the two symmetrical T-shaped steel plates 2 in the same straight line.

[0079] Example 2

[0080] This application discloses a processing technology for a cross-shaped steel structure:

[0081] The processing steps include the following:

[0082] S1: Positioning of T-shaped steel plate 2 and I-beam steel plate 1;

[0083] S11: Place the T-shaped steel plate 2 in the limiting space formed by the first limiting block 31 and the second limiting block 32, and press the T-shaped steel plate 2 against the first limiting block 31. Adjust the second limiting block 32 so that the second limiting block 32 presses against the T-shaped steel plate 2.

[0084] S2: T-shaped steel plate 2 is fixed to I-beam steel plate 1;

[0085] S21: Adjust the second limiting block 32 so that the second limiting block is pressed against the other side of the T-shaped steel plate 2. Use the stabilizing member 33 to press the second limiting block 32 against the I-beam steel plate 1.

[0086] S3: Calibration of the perpendicularity between T-shaped steel plate 2 and I-beam steel plate 1;

[0087] S31: Use the third bolt 344 to fix the first calibration block 341 and the second limit block 32, adjust the second calibration block 342, the second calibration block 342 abuts against the I-beam plate 1, and use the fastener 343 to fix the second calibration block 342 to the I-beam plate 1.

[0088] S4: The connection and fixation between adjacent I-beam plates 1 is extended by lengthening the cross steel.

[0089] S41: Adjacent I-beams 1 move closer to each other, and the connecting block 41 of the next I-beam 1 extends into the connecting groove 13 of the previous I-beam 1. The fourth bolt 42 is used to fix the I-beam 1 to the connecting block 41. The above operation is repeated to extend the length of the cross steel.

[0090] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cruciform steel construction, characterised in that: It includes an I-beam (1), two T-beams (2) and a limiting assembly (3); Two T-shaped steel plates (2) are disposed on both sides of the I-beam (1) by the limiting component (3), wherein the two T-shaped steel plates (2) are symmetrically arranged about the length direction of the I-beam (1), and the cross section formed by the T-shaped steel plates (2) and the I-beam (1) is cross-shaped; The limiting component (3) includes a first limiting block (31) and a second limiting block (32); The first limiting block (31) is disposed on the I-beam plate (1); The second limiting block (32) is movably disposed on the I-beam plate (1), and the first limiting block (31) and the second limiting block (32) are located on the same side of the I-beam plate (1); wherein, the first limiting block (31) and the second limiting block (32) form a limiting space for the T-shaped steel plate (2) to be accommodated; It also includes a stabilizing member (33) for fixing the second limiting block (32) to the I-beam (1); The stabilizing member (33) includes a first bolt (331); The first bolt (331) passes through the second limiting block (32) and can be threadedly connected to the I-beam (1); The limiting component (3) also includes a calibration component (34) for improving the perpendicularity of the second limiting block (32) to the I-beam (1). The calibration component (34) includes a first calibration block (341), a second calibration block (342), and a fixing component (343). The first calibration block (341) is located on the side of the second limiting block (32); The second calibration block (342) is slidably disposed on the first calibration block (341), wherein the length direction of the first calibration block (341) is perpendicular to the length direction of the second calibration block (342), and the second calibration block (342) can abut against the I-beam (1); The fastener (343) is provided on the second calibration block (342) and is used to fix the second calibration block (342) to the I-beam plate (1).

2. A cruciform steel construction according to claim 1, characterised in that: The fastener (343) includes a second bolt (3431); The second bolt (3431) is threaded onto the second calibration block (342), and the second bolt (3431) is used to fix the second calibration block (342) to the I-beam plate (1).

3. A cruciform steel construction according to claim 1, characterised in that: It also includes a third bolt (344) for fixing the first calibration block (341) and the second calibration block (342). The third bolt (344) is located on the first calibration block (341), the third bolt (344) passes through the first calibration block (341), and can abut against the second limiting block (32).

4. A cruciform steel construction according to claim 1, characterised in that: It also includes a connecting assembly (4) for extending the length of the cross steel; The connecting assembly (4) includes a connecting block (41) and a clamping element; The connecting block (41) is provided on one side of the I-beam plate (1), and the other side of the I-beam plate (1) is provided with a connecting groove (13) for the connecting block (41) on the adjacent I-beam plate (1) to extend into. The connecting block (41) extends into the connecting groove (13) and the connecting block (41) is slidably connected to the I-beam plate (1). The clamping member is provided on the I-beam plate (1) and is used to fix the connecting block (41) to the adjacent I-beam plate (1).

5. A cruciform steel construction according to claim 4, wherein: The cross-sectional area of ​​the connecting block (41) gradually increases from one side near the other I-beam (1) to the other side, wherein the connecting groove (13) is configured to cooperate with the connecting block (41).

6. A cruciform steel construction according to claim 4, characterised in that: The fastening element includes a fourth bolt (42); The fourth bolt (42) is provided on the I-beam plate (1), the fourth bolt (42) passes through the I-beam plate (1) and the connecting block (41), and the axial direction of the fourth bolt (42) is perpendicular to the installation direction of the adjacent I-beam plate (1).

7. A cross-shaped steel structure according to claim 1, characterized in that: The limiting component (3) further includes an indicator (35) for indicating two symmetrical second limiting blocks (32); The indicator (35) includes an indicator block (351); the indicator block (351) is disposed on the second limiting block (32), and another indicator groove (321) that cooperates with the indicator block (351) is disposed on the opposite second limiting block (32). When the indicator groove (321) corresponds to the indicator block (351), the two second limiting blocks (32) are located on the same horizontal line.

8. A processing technology for a cross-shaped steel structure disclosed in claims 1-7, characterized in that: The processing steps include the following: S1: Positioning of T-shaped steel plate (2) and I-beam steel plate (1); S11: Place the T-shaped steel plate (2) in the limiting space formed by the first limiting block (31) and the second limiting block (32), and make the T-shaped steel plate (2) abut against the first limiting block (31). Adjust the second limiting block (32) so that the second limiting block (32) abuts against the T-shaped steel plate (2). S2: T-shaped steel plate (2) is fixed to I-beam steel plate (1); S21: Adjust the second limiting block (32) so that the second limiting block abuts against the other side of the T-shaped steel plate (2) and use the stabilizing member (33) to abut against the second limiting block (32) and the I-beam steel plate (1); S3: Calibration of the perpendicularity between the T-shaped steel plate (2) and the I-beam steel plate (1); S31: Use the third bolt (344) to fix the first calibration block (341) and the second limit block (32), adjust the second calibration block (342), the second calibration block (342) abuts against the I-beam (1), and use the fastener (343) to fix the second calibration block (342) and the I-beam (1); S4: The connection between adjacent I-beams (1) is fixed, and the length of the cross steel is increased; S41: Adjacent I-beams (1) are brought close to each other. The connecting block (41) of the next I-beam (1) is inserted into the connecting groove (13) of the previous I-beam (1). The fourth bolt (42) is used to fix the I-beam (1) and the connecting block (41). The above operation is repeated to extend the length of the cross steel.

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