A grid-shaped plug-in plate V-shaped column structure and a manufacturing process method thereof

Abstract

The application discloses a grid-shaped plug-in plate V-shaped column structure and a manufacturing process method thereof, and the overall form is a V-shaped box structure form, which comprises a main body component, two groups of corbel components are connected to one end of the main body component, a plurality of inner partition plates are arranged in the corbel components, longitudinal stiffening plates are arranged between adjacent inner partition plates, plug-in grooves are formed in the inner side flange plates of the corbel components, plug-in plates matched with the plug-in grooves are arranged in the main body component, and horizontal baffles for bearing pressure of the corbel components are arranged in the main body component. The inner partition plates and other modes arranged in the application optimize the structure form, increase the overall bearing capacity of the structure, and are safe and reliable, good in integrity, and clear in force transmission. Meanwhile, reasonable assembling sequences and efficient welding methods are adopted, the production efficiency is accelerated on the basis of ensuring the qualified quality, the production plan demand is met, and the machining of the grid-shaped plug-in plate V-shaped column structure is effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building steel structure, more particularly to a grid-shaped plug-in plate V-shaped column structure and a manufacturing process method thereof. BACKGROUND

[0002] With the vigorous promotion of prefabricated buildings by the state, more and more landmark buildings are built of steel structures. At the same time, due to the shape and structural requirements of landmark buildings, various structural column or beam steel members are often used. The joint design of steel structure is the key and difficulty of building, and the rationality of joint design directly determines the quality and progress of construction. V-shaped support structure has the advantages of strong bearing capacity and durability, and is widely used in building steel structure. The existing connection joint of V-shaped support structure and beam or column is easy to damage due to stress concentration, which leads to the collapse of the whole structure and causes safety risks. The conventional manufacturing process cannot meet the corresponding quality requirements, and the manufacturing difficulty is great, the manufacturing process is complicated, and the production efficiency is low. The steel bars in the beam-column joint area are dense. In order to ensure the bearing capacity and energy dissipation capacity of the joint, it is urgent to develop a connection joint that meets the structural stress and manufacturing progress requirements, is safe and reliable, has good integrity, and has clear force transmission. SUMMARY

[0003] In view of the shortcomings of the prior art, the present application provides a grid-shaped plug-in plate V-shaped column structure and a manufacturing process method thereof, which meets the structural stress and manufacturing progress requirements, optimizes the structural form, and at the same time adopts a reasonable assembly sequence and an efficient welding method, effectively solving the processing and manufacturing of the grid-shaped plug-in plate V-shaped column structure.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a grid-shaped plug-in plate V-shaped column structure, the overall form is a "V-shaped" box type structure form, comprising a main body member, one end of the main body member is connected with two groups of corbel members, a plurality of inner partition plates are arranged in the corbel members, longitudinal stiffeners are arranged between adjacent inner partition plates, a plug-in slot is formed in the inner side flange plate of the corbel member, a plug-in plate is arranged in the main body member and connected with the plug-in slot, and a horizontal baffle for bearing pressure of the corbel member is arranged in the main body member.

[0005] Further, the corbel member comprises a corbel lower web plate and a corbel upper web plate, the corbel is installed on the plug-in plate, outer side flange plates and inner side flange plates are arranged on both sides of the corbel lower web plate and the corbel upper web plate, the length of the inner side flange plate exceeds that of the corbel lower web plate and the corbel upper web plate, and the plug-in slot is formed in the inner side flange plate.

[0006] Further, the main body structure comprises a main body upper web plate, a main body lower web plate and two side main body flange plates, the main body flange plates are connected with the corbel outer flange plates, the length of the outer flange plate is shorter than the corbel upper web plate and the corbel lower web plate, the corbel flange web plate welds are staggered to avoid stress concentration, the main body flange plate is provided with a bending section, and a bending reinforcement plate is arranged at the bending section.

[0007] Further, the plug-in plate is a whole plate arranged inside the main body structure and is not segmented, the inner partition plate is symmetrically segmented into two upper and lower plates with the plug-in plate as the middle line, and the whole forms a grid-shaped form.

[0008] Further, the width direction extension member web plate surface of the corbel inner flange plate and the transverse baffle is designed as external welding.

[0009] Further, the main body structure is provided with a longitudinal partition plate perpendicular to the direction of the transverse baffle.

[0010] The manufacturing process method of the grid-shaped plug-in plate V-shaped column structure comprises the following steps:

[0011] I. Corbel component assembly,

[0012] 1. Corbel electroslag welding inner partition plate and longitudinal stiffener assembly, the clamp strip of the electroslag welding inner partition plate should be pre-milled and processed, the assembly is constructed by a flow line, and attention should be paid to ensure the flatness of the electroslag welding clamp strip;

[0013] 2. Corbel upper web plate assembly, pay attention to ensure the dimensional accuracy during assembly to prevent the misalignment phenomenon caused by the depression of the corbel web plate, after the assembly is completed, the gas shielded welding position of the internal electroslag welding inner partition plate and longitudinal stiffener is welded, and after the welding is completed and the UT flaw detection is qualified, the next operation is performed;

[0014] 3. Complete the assembly of the outer flange plate and the inner flange plate, after the assembly is completed, the main body weld is welded, during welding, first, the gas shielded welding is bottomed, continuous welding is required, and the electroslag welding hole is not reserved, then the submerged arc welding is filled, the electroslag welding hole is opened after the filling is completed, and the submerged arc welding is performed to cover the surface after the welding of the electroslag welding inner partition plate is completed;

[0015] II. Overall assembly,

[0016] 1. The inner flange plate insertion slots of the two assembled corbel components are respectively inserted into the plug-in plate of the component body from the left and right sides, while ensuring that the size of the plug-in plate and the main body flange plate is perpendicular, after the insertion of the plug-in plate into the corbel component is completed, full penetration welding is respectively performed between the plug-in plate and the main body flange plate on both sides of the main body structure and between the plug-in plate and the steel column inner partition plate.

[0017] 2, the four pairs of inner partition plates are pushed into the four cavities between the bracket components and the inserted plates in sequence, respectively, full penetration welding and flaw detection are carried out, and it is noted that the inner partition plates in the previous process are qualified in flaw detection, and then the inner partition plates in the latter process can be spliced and welded;

[0018] 3, after the four pairs of inner partition plates are welded and detected, the main flange plates on both sides of the steel column main component are assembled and welded, and the perpendicularity between the middle inserted plate and the main flange plate needs to be ensured during assembly, and after welding, full penetration flaw detection is carried out on the main weld;

[0019] 4, after the main flange plates on both sides are welded, two pairs of bent area reinforcing plates are assembled, respectively, and after assembly and welding, the four plates are detected, respectively;

[0020] 5, for the remaining non-embedded hidden partition plate construction, first, the positioning lines of the remaining part plates are drawn on the inserted plates, then the remaining inner partition plates are assembled on the inserted plates, and the perpendicularity of the part plates and the inserted plates needs to be ensured during assembly, and the corresponding grooves are opened before assembly, and after assembly, full penetration welding is carried out between the part plates and the main component;

[0021] 6, after the part plates are welded, the remaining main upper web plates and main lower web plates are assembled, and the main upper web plates and the main lower web plates are welded with the main flange plates, and the inner side flange plates of the bracket, the horizontal baffle plates and the vertical partition plates are welded outside the web plates, and the remaining embedded partition plates are welded with the remaining web plate surfaces from the upper and lower holes;

[0022] 7, after the main component is welded, the bracket, the column upper middle position sealing plate and other parts on the component are assembled and welded, and UT flaw detection is carried out after welding, and unqualified parts are repaired.

[0023] As described above, the inner partition plates and the like are arranged inside, the structure is optimized, the overall load-bearing capacity of the structure is increased, it is safe and reliable, has good integrity, and the force transmission is clear; meanwhile, reasonable assembly sequence and efficient welding method are adopted, the production efficiency is improved on the basis of ensuring the qualified quality, the production plan demand is met, and the machining of the grid-shaped inserted plate V-shaped column structure is effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0025] Figure 2 It is an exploded view of the embodiment of the application;

[0026] Figure 3 It is a schematic diagram of the inner part of the bracket component in the embodiment of the application;

[0027] Figure 4 This is a schematic diagram showing the arrangement of the inner flange and the transverse baffle in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the built-in insert plate in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the internal partition arrangement in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram showing the arrangement of the inner partition and longitudinal stiffening plate of the corbel component in this invention;

[0031] Figures 8-16 The following is a step-by-step illustration of an embodiment of the present invention.

[0032] Labeling instructions: 1. Bracket component; 2. Main component; 3. Slot; 4. Inner flange plate; 5. Upper web plate of the bracket; 6. Lower web plate of the bracket; 7. Inner partition plate; 8. Outer flange plate; 9. Transverse baffle; 10. Insert plate; 11. Upper web plate of the main body; 12. Longitudinal stiffening plate; 13. Bending reinforcement plate; 14. Main flange plate; 15. Longitudinal partition plate; 16. Corresponding inner partition plate of the outer bracket. Detailed Implementation

[0033] Reference Figures 1-16 The specific implementation method of the grid-shaped insert plate V-shaped column structure and its manufacturing process of the present invention will be further described.

[0034] A grid-like insert plate V-shaped column structure, the overall form of which is a "V-shaped" box structure (e.g.) Figure 1 As shown, it includes a main component 2, one end of which is connected to two sets of bracket components 1. The bracket component 1 has several internal partitions 7 inside, and a longitudinal stiffening plate 12 is provided between adjacent internal partitions 7. A slot 3 is opened on the inner side of the bracket component 1. An insert plate 10 that cooperates with the slot 3 is provided in the main component 2. A transverse baffle 9 is provided in the main component 2 to bear the pressure of the bracket component 1.

[0035] To improve production efficiency, accelerate turnover, and maximize the number of production teams referencing the design, this grid-like insert plate 10V-shaped column structure can be divided into three parts: upper and lower parent components (two sets of bracket components 1 and a main component 2). The inner partition 7 of bracket component 1 is electroslag welded to ensure mechanized production. Slots 3 are provided on the inner side of bracket component 1 for subsequent insertion into the main component 2, as detailed below. Figure 2 , Figure 3The bracket component 1 is connected to the remaining components. In order to improve the stress strength of the bracket component 1, a whole transverse baffle 9 is arranged at the root position of the inner flange plate 4 of the bracket component 1 to bear the pressure from the upper bracket component 1. The specific arrangement is shown in Figure 4 A large structural reinforcement insert plate 10 is arranged at the central position inside the main body component 2 to cooperate with the insert slot 3 for connection. The specific arrangement is shown in Figure 5

[0036] In this embodiment, the bracket component 1 includes a bracket lower web plate 6 and a bracket upper web plate 5. The bracket is arranged on the insert plate 10. The bracket lower web plate 6 and the bracket upper web plate 5 are respectively provided with an outer flange plate 8 and an inner flange plate 4. The length of the inner flange plate 4 exceeds that of the bracket lower web plate 6 and the bracket upper web plate 5. The insert slot 3 is arranged on the inner flange plate 4.

[0037] In this embodiment, the main body structure includes a main body upper web plate 11, a main body lower web plate, and main body flange plates 14 arranged on both sides. The main body flange plates 14 are connected to the outer flange plates 8. The length of the outer flange plates 8 is shorter than that of the bracket upper web plate 5 and the bracket lower web plate 6. The main body flange plates 14 are provided with a bending section. The bending section is provided with a bending reinforcement plate 13. In order to ensure the structural bearing capacity, a reinforcement plate is additionally arranged between the two bracket components 1 (between the inner flange plates 4 of the two brackets). In order to ensure the welding quality of the inner partition plate 7, the outer flange plate of the steel column main body component is divided into the outer flange plate 8 and the main body flange plate 14. The segmented position is located at the upper part of the bending section of the outer flange plate 8. The welding space of the inner partition plate 7 during subsequent assembly is increased. The specific arrangement is shown in Figure 4 Segmented view.

[0038] In this embodiment, the insert plate 10 is a whole plate arranged inside the main body structure and is not segmented. The inner partition plate inside the main body component 2 is symmetrically segmented into upper and lower two blocks with the insert plate 10 as the middle line. The whole forms a grid-shaped form, which can ensure the continuity of force transmission inside the component. The specific arrangement is shown in Figure 6

[0039] In this embodiment, the cross-sectional width of the inner flange plate 4 and the transverse baffle 9 extends out of the surface of the component and is designed to be externally welded, thereby increasing the welding space and improving the pass rate of qualified welds. The specific arrangement can be seen in Figure 4

[0040] In this embodiment, the main body structure is provided with a longitudinal partition plate 15 perpendicular to the direction of the transverse baffle 9. The longitudinal partition plate 15 and the transverse baffle 9 are arranged in a “T” shape inside the main body structure, thereby improving the bearing capacity of the structure and increasing the stability.

[0041] The manufacturing process method of the grid-shaped insert plate 10 V-shaped column structure includes the following steps:​​​

[0042] I. Corbel assembly 1:

[0043] 1. Assemble the inner partition plate 7 and the longitudinal stiffener 12 of the corbel by electroslag welding. The clamping strip of the inner partition plate 7 should be pre-milled and processed. The assembly should be performed by a flow line. Pay attention to ensure the flatness of the electroslag welding clamping strip. Details are shown in Figure 7 ;

[0044] 2. Assemble the upper web plate 5 of the corbel. Pay attention to ensure the dimensional accuracy during assembly to prevent the misalignment caused by the concave of the upper web plate 5 of the corbel. After the assembly, perform gas shield welding on the inner partition plate 7 and the longitudinal stiffener 12. After the welding is completed and the UT inspection is qualified, proceed to the next step. Details are shown in Figure 8 ;

[0045] 3. Complete the assembly of the outer flange plate 8 and the inner flange plate 4. After the assembly is completed, perform welding on the main weld. During welding, first perform gas shield welding for backing welding. Require continuous welding and do not leave electroslag welding holes. Then perform submerged arc welding for filling. After the filling is completed, open the electroslag welding holes. After the welding of the inner partition plate 7 is completed, perform submerged arc welding for covering. Details are shown in Figure 9 ;

[0046] II. Overall assembly:

[0047] 1. Insert the inner flange plates of the assembled corbel component 1 from the left and right sides into the large insertion plate 10 of the component body respectively. Ensure the perpendicularity between the insertion plate 10 and the corbel flange plates 4 and 8. After the corbel component 1 is inserted into the insertion plate 10 and the assembly is completed, perform welding between the insertion plate 10 and the main flange plates 14 on both sides of the main body structure. Ensure full penetration welding between the inner partition plates 7. Details are shown in Figure 10 . (In the figure, a represents welding with the inner partition plate 7; b represents welding with the outer flange plate 8; and c represents welding with the inner flange plate 4.)

[0048] 2. Push the four pairs of outer corbel corresponding inner partition plates 16 into the four cavities formed between the corbel component 1 and the insertion plate 10 in sequence. Perform full penetration welding and perform inspection. Pay attention to that the inner partition plate 7 should be inspected before the outer corbel corresponding inner partition plate 16 is welded. Details are shown in Figure 11 .

[0049] 3. After the welding and inspection of the four pairs of outer corbel corresponding inner partition plates 16 are completed, assemble and weld the main flange plates 14 on both sides of the steel column main component 2. Pay attention to ensure the perpendicularity between the middle insertion plate 10 and the main flange plate 14 during assembly. After the welding is completed, perform full penetration inspection on the main weld. Details are shown in Figure 12 .

[0050] 4. After welding the main flange plates 14 on both sides, assemble two pairs of bending reinforcement plates 13 for the bending areas. During assembly, after welding, perform flaw detection on all four plates, as detailed below. Figure 13 As shown;

[0051] 5. For the remaining non-built-in concealed partitions, draw the positioning lines for the remaining part plates on the insert plate 10. Assemble the remaining inner partitions onto the insert plate 10, ensuring the perpendicularity of the part plates to the insert plate 10 during assembly. Before assembly, prepare the corresponding bevels. After assembly, perform full penetration welding between each part plate and the main component 2, as detailed below. Figure 14 As shown;

[0052] 6. After the component plates are assembled and welded, assemble the remaining upper and lower web plates 11 of the main body, and weld the upper and lower web plates 11 of the main body to the main body flange plates 14. For the flange plates 4, transverse baffles 9, and longitudinal partitions 15 extending from the inner side of the upper and lower web plates 11 of the main body, weld them to the web plates from the outside. The remaining internal partitions are welded to the remaining web plate surfaces from the upper and lower openings, as detailed below. Figure 15 As shown;

[0053] 7. After the main component assembly and welding are completed and pass the flaw detection, the brackets, the end plate at the middle position of the upper part of the column, and other components are assembled and welded. After welding, UT flaw detection is performed, and any unqualified parts are repaired. Specific details are as follows: Figure 16 As shown.

[0054] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A grid-like insert plate V-shaped column structure, characterized in that: The overall form is a "V-shaped" box structure, including a main component. One end of the main component is connected to two sets of bracket components. The bracket components have several internal partitions inside. A longitudinal stiffening plate is provided between adjacent internal partitions. The inner flange of the bracket components has a slot. The main component has a plug plate that connects with the slot. The main component has a transverse baffle that bears the pressure of the bracket components. The cow leg component includes a lower cow leg web plate and an upper cow leg web plate. The cow leg component is installed on the insert plate. The lower cow leg web plate and the upper cow leg web plate are respectively provided with an outer flange plate and an inner flange plate on both sides. The length of the inner flange plate exceeds the lower cow leg web plate and the upper cow leg web plate. The slot is opened on the inner flange plate. The main component includes an upper main web, a lower main web, and two main flange plates on both sides. The main flange plates are connected to the outer flange plates. The length of the outer flange plates is shorter than that of the upper and lower webs of the corbel, ensuring that the welds of the corbel components are staggered to avoid stress concentration. The main flange plates are provided with bending sections, and bending reinforcement plates are provided at the bending sections. The inner partition is symmetrically divided into upper and lower sections with the insert plate as the center line, forming a grid-like structure.

2. The grid-like insert plate V-shaped column structure according to claim 1, characterized in that: The insert plate is a single, undivided plate located inside the main body component.

3. The grid-like insert plate V-shaped column structure according to claim 1, characterized in that: The cross-sectional width of the inner flange plate and the transverse baffle extends beyond the surface of the component and is designed to be externally welded.

4. The grid-like insert plate V-shaped column structure according to claim 1, characterized in that: The main component is provided with a longitudinal partition perpendicular to the direction of the transverse baffle.

5. The manufacturing process of the grid-like insert plate V-shaped column structure according to any one of claims 1-4, characterized in that: Includes the following steps, I. Assembly of corbel components 1. The electroslag welded inner partition and longitudinal stiffening plate of the corbel component are assembled. The clamping strips of the electroslag welded inner partition should be pre-milled. The assembly is carried out by the assembly line. Attention should be paid to ensuring the fit between the electroslag weld and the clamping strip.

2. Assemble the upper web plate of the corbel. When assembling, pay attention to ensuring dimensional accuracy and prevent misalignment caused by the concavity of the upper web plate of the corbel. After the assembly is completed, weld the internal electroslag welded inner partition and the gas shielded welding position of the longitudinal stiffening plate. After the welding is completed and passes the UT flaw detection, proceed to the next step.

3. Complete the assembly of the outer flange plate and the inner flange plate. After the assembly is completed, weld the main weld. When welding, first perform gas shielded welding for the root pass, and continuous welding is required. Do not leave electroslag welding holes in advance. Then perform submerged arc welding for the fill pass. After the fill pass is completed, open the electroslag welding holes. After completing the electroslag welding of the inner partition plate, perform submerged arc welding for the cover pass. II. Overall assembly 1. Insert the inner flange plates of the two assembled corbel components into the insert plates of the main body from the left and right sides respectively, while ensuring that the insert plates are perpendicular to the main flange plates. After the corbel components are assembled, perform full penetration welding between the insert plates and the main flange plates on both sides of the main body, and between the insert plates and the inner partition plates of the steel column.

2. Push the four pairs of inner partitions into the four cavities formed between the bracket component and the insert plate in sequence, and perform full penetration welding and flaw detection respectively. Note that the inner partitions of the previous stage can only be welded after the flaw detection of the previous inner partition is qualified.

3. After the above four pairs of inner partition plates have been welded and inspected, the main flange plates on both sides of the main steel column component shall be assembled and welded. During assembly, attention should be paid to ensuring the perpendicularity between the middle insert plate and the main flange plate. After the welding is completed, the main weld shall be inspected for full penetration.

4. After completing the welding of the main flange plates on both sides, assemble two pairs of bending reinforcement plates for the bending area. After the welding is completed, the four plates are subjected to flaw detection.

5. For the construction of the remaining non-built-in concealed partitions, first draw the positioning lines of the remaining parts plates on the insert plate, and then assemble the remaining inner partitions onto the insert plate. During assembly, ensure the perpendicularity of the parts plates to the insert plate. At the same time, prepare the corresponding bevels before assembly. After assembly, perform full penetration welding between each part plate and the main component.

6. After the parts plates are assembled and welded, assemble the remaining upper and lower web plates of the main body respectively, and weld the upper and lower web plates of the main body to the main flange plates. At the same time, weld the inner flange plates, transverse baffles, and longitudinal partitions of the bracket components extending from the upper / lower web plates of the main body to the web plates on the outside. The remaining internal partitions are welded to the remaining web plate surfaces from the upper and lower openings respectively.

7. After the main body of the component is assembled and welded and passes the flaw detection, the bracket components and the sealing plate at the middle position of the upper part of the column are assembled and welded. After welding, UT flaw detection is performed, and the unqualified parts are repaired.

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