A cross-shaped post docking device and its docking method

Abstract

This invention discloses a cross-shaped column docking device and its docking method. The device includes a cross-shaped column, a clamping structure one, and a clamping structure two. The cross-shaped column includes a web plate one and a web plate two. The web plate one has an opening, and a flange plate one is welded to the opening. A flange plate two is welded to the web plate two. A reserved space between the upper and lower flange plates one is used for welding a flange plate three. The method includes steps A, obtaining the cross-shaped column; step B, docking the two cross-shaped columns vertically; step C, clamping the flange plate two using the clamping structure two; step D, clamping the flange plate one using the clamping structure one; step E, welding the cross-shaped column vertically; step F, removing the clamping structure two and the clamping structure one; and step G, inserting the flange plate three into the reserved space. This invention increases the internal space at the docking position of the cross-shaped columns, preventing interference during welding. Sufficient space is provided for welding operations at the front and rear welding positions, ensuring the stability and integrity of the cross-shaped column connection.

Description

Technical Field

[0001] This invention belongs to the field of steel structure construction technology, specifically relating to a cross-column docking device and its docking method. Background Technology

[0002] Steel structures are favored for their light weight, good seismic performance, small footprint, excellent spatial feel, and unique environmental advantages. Therefore, an increasing number of high-rise buildings are using steel structures as their main structure. Cross-shaped columns are quite common in high-rise buildings, mainly due to their simple construction and high rigidity. Cross-shaped columns have no weak axis, and their failure mode is local buckling plastic failure, with plastic deformation mainly occurring on the flanges of the bending plane. They exhibit good flexural capacity, ductility, and seismic bearing capacity. However, the issue of cross-shaped column jointing has always existed in practical engineering applications. The cross-shaped columns used on construction sites are often too long, requiring segmented transportation and on-site assembly, necessitating welding at the joints.

[0003] After the cross columns are connected and limited, welding is carried out. However, due to the partial obstruction of the cross column flange plate, the internal space for welding operation is very narrow. The welding operation will cause interference, affecting the construction workers. At the same time, it is difficult to ensure the stability of the cross column connection, which poses a construction safety hazard. Summary of the Invention

[0004] The purpose of this invention is to solve the aforementioned technical problems in the prior art and to provide a cross-shaped column docking device and its docking method. During the material preparation and production process in the factory, the dimensions of one opposite flange plate section of the welding area are reserved according to the corresponding specifications. The flange plate of the other opposite side does not need to be reserved. By reducing the space of the flange plate on one opposite side, the internal space at the cross-shaped column docking position is increased, and there will be no interference problem during welding. There is sufficient space for welding operations at the front and rear welding positions, ensuring the stability and integrity of the cross-shaped column connection.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A cross-shaped column welding device is characterized by comprising a cross-shaped column, a clamping structure one, and a clamping structure two. The cross-shaped column includes a web plate one and a web plate two, which are welded together in a cross shape. The web plate one has an opening, at which a flange plate one is welded. The outer surface of the web plate two is welded with a flange plate two. When two adjacent cross-shaped columns are welded, clamping structure one clamps and fixes the upper and lower flange plates one, with a reserved space between them. The upper and lower web plates one are welded together, and the reserved space is used for welding a third flange plate. Clamping structure two clamps and fixes the upper and lower flange plates two, with the upper and lower flange plates two and the upper and lower web plates two also welded together.

[0007] Furthermore, both clamping structures one and two include an upper clamping plate, a lower clamping plate, and a bracket. The upper and lower clamping plates are connected by fixing bolts to form a clamping unit, which is used to clamp and fix flange plate one. A pad is provided between the upper and lower clamping plates, which serves as a connector, ensuring that the clamping thickness of the upper and lower clamping plates is consistent with the thickness of flange plate one. The bracket is fixed to the upper clamping plate between the two clamping units by fixing bolts, and the bracket serves to support, connect, and fix the flange. By using the above-mentioned clamping structures one and two, welding deformation during the welding process is prevented, ensuring the stability of the weld. Moreover, both clamping structures one and two can be used for butt joints of different sizes of cross-shaped columns.

[0008] Furthermore, stiffening plates are fixed to the upper clamping plate, lower clamping plate, and corbel, which increase the strength of the steel structure. The outer sides of the stiffening plates at the upper and lower clamping plates are chamfered to reduce interference from the fixing bolt connections and increase the usable space.

[0009] Furthermore, the bracket is provided with a groove, and the groove is correspondingly set with the welding points of the two adjacent cross columns above and below, which facilitates the welding operation.

[0010] Furthermore, a backing plate is welded between the web plate 1 and the flange plate 1. The backing plate serves to limit and supplement the fixation, while preventing the solder from flowing out during the welding process. The flange plate 3 is supported on the backing plate. The flange plate 3 has a bevel 1 and a bevel 2. Bevel 1 is welded and fixed to the web plate 1, and bevel 2 is welded and fixed to the flange plate 1, thereby increasing the welding strength between the flange plate 3 and the web plate 1, and also increasing the welding strength between the flange plate 3 and the flange plate 1.

[0011] Furthermore, a fixing structure is provided between flange plate three and flange plate one. This fixing structure includes fixing plate one and fixing plate two, which are fixedly connected by fixing bolts. Fixing plate one and fixing plate two simultaneously clamp and fix flange plate three and flange plate one. A pad two is provided between fixing plate one and fixing plate two, serving a connecting function to ensure that the clamping thickness of fixing plate one and fixing plate two, and the thickness of flange plate three, are consistent with the thickness of flange plate one. This prevents welding deformation during welding and also serves as a fixing and limiting function.

[0012] Furthermore, both fixing plate one and fixing plate two are equipped with rubber pads, which are used to press down flange plate three and flange plate one.

[0013] A docking method for a cross-shaped post docking device, characterized by comprising the following steps:

[0014] Step A: The materials are cut and welded at the processing plant to obtain the cross-shaped column.

[0015] Step B: By hoisting, the two cross-shaped columns are joined together vertically. At this time, there is a reserved space between the upper and lower flange plates, the upper and lower web plates are in contact with each other, the upper and lower flange plates are in contact with each other, and the upper and lower web plates are in contact with each other.

[0016] Step C: Clamp the two upper and lower flange plates using a clamping structure.

[0017] Step D: Use a clamping structure to clamp the upper and lower flange plates together.

[0018] Step E: Weld the contact points of the upper and lower distributed web plates, weld the contact points of the upper and lower distributed flange plates, and simultaneously weld the contact points of the upper and lower distributed web plates.

[0019] Step F: Remove clamping structure two and clamping structure one.

[0020] Step G: Insert flange plate 3 into the reserved space between the upper and lower flange plates 1, weld flange plate 3 and web plate 1 together, and weld flange plate 3 and flange plate 1 together.

[0021] Furthermore, in step A, the specific method for welding the cross-shaped post is as follows:

[0022] (1) Cut an opening on the outside of web plate one, and weld flange plate one to the opening to obtain steel section one. At the same time, weld flange plate two to the outside of web plate two to obtain steel section two.

[0023] (2) Set two support seats on the connecting rod, and then use a lock nut to limit each support seat on the connecting rod. The support seat is equipped with a connecting plate, and the support seat is threadedly connected to the support rod.

[0024] (3) Fix mounting seat one to the connecting plate of the front support seat with bolts, and then fix mounting seat two to the connecting plate of the rear support seat with bolts.

[0025] (4) Clamp the lower section steel 2: Fix the T-shaped seat on the mounting base 1 with bolts, and then set the connecting arm 1 on the T-shaped seat. The connecting arm 1 is welded with clamp 1 and clamp 2. The clamp 1 and the T-shaped seat are fixed with bolts. Then turn the support rod to raise the support rod to the set height. Then move the section steel 2 horizontally in, with the web plate 2 of section steel 2 facing upward. The flange plate 2 of section steel 2 is supported on the support rod. At the same time, the web plate 2 of section steel 2 is set between the clamp plates 2. Then insert the threaded rod 1 between the clamp plates 2. Then tighten the fixing nut 1 on the threaded rod 1. Clamp the web plate 2 of section steel 2 with clamp plate 2.

[0026] (5) Positioning the first section of steel onto the second section of steel in step (4): Place the H-shaped first section of steel, with the web of the first section of steel supported on the first clamping plate and the web of the second section of steel. The web of the first section of steel is set horizontally. Then, a positioning element is set in the notch of the second mounting seat. Then, threaded rod 2 is inserted into the through hole of the second mounting seat and the sliding hole of the positioning element. The positioning element moves toward the first section of steel and abuts against the flange of the first section of steel. Then, a fixing nut 2 is screwed into the threaded rod 2 and locked. At this time, the web of the first section of steel and the web of the second section of steel below form a weld joint 1 and a weld joint 2 at the contact point.

[0027] (6) Clamping the first section steel and the second section steel above it: Install the second connecting arm on the first clamping plate. The second connecting arm is welded with the third clamping plate and the fourth clamping plate. Insert the third threaded rod between the third clamping plate and the first clamping plate. Tighten the third fixing nut on the third threaded rod. The third clamping plate and the first clamping plate clamp the web of the first section steel. Then, place the second web of the second section steel between the fourth clamping plates. Insert the fourth threaded rod between the fourth clamping plates. Tighten the fourth fixing nut on the fourth threaded rod. Clamp the second web of the second section steel with the fourth clamping plate. At this time, the second web of the second section steel above is vertically set. The contact point between the first web of the first section steel and the second web of the second section steel above forms the third and fourth welds, forming a welding unit.

[0028] (7) Weld and fix welding joints three and four of the welding unit simultaneously.

[0029] (8) Flip the welding unit 180° and place it on the ground. Then remove the threaded rod 2 and the fixing nut 2 between the mounting base 2 and the positioning part. Remove the positioning part, then unscrew the bolt between the clamp plate 1 and the T-shaped seat, remove the two support seats, and then weld and fix the welding point 1 and welding point 2 of the welding unit at the same time. Then remove the connecting arm 1 and connecting arm 2 to obtain the cross column.

[0030] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0031] 1. In the production process of this invention, one of the opposite flange plate sections of the welding area is reserved with the corresponding size during the material cutting process in the processing plant. The flange plate of the other opposite side does not need to be reserved. By reducing the space of the flange plate on one opposite side, the internal space at the joint of the cross column is increased, so that there will be no interference problem during welding. There is enough space for welding operations at the front and rear welding positions, ensuring the stability and integrity of the cross column connection.

[0032] 2. This invention is easy to assemble and disassemble, can be used for on-site construction operations, and can be reused; at the same time, it is easy to maintain and convenient for manual operation.

[0033] 3. The connecting arms one and two of this invention clamp one end of the steel sections one and two, exposing most of the weld joint and facilitating full-section welding. Simultaneously, they maintain the cross shape of the steel sections one and two, preventing them from tilting or moving during welding and improving welding quality. Furthermore, weld sections three and four are positioned upwards at a 90° angle. When weld sections three and four are welded simultaneously, the left and right sides of the web two are evenly stressed without deformation, allowing for rapid weld formation. The applied weld is uniform, and the weld fullness meets design requirements. By rotating the welding unit 180°, weld sections one and two are positioned upwards at a 90° angle. When weld sections one and two are welded simultaneously, the left and right sides of the web two are evenly stressed without deformation, allowing for rapid weld formation. The applied weld is uniform, and the weld fullness meets design requirements. Attached Figure Description

[0034] The present invention will be further described below with reference to the accompanying drawings:

[0035] Figure 1 This is a schematic diagram of the structure of a cross-shaped column docking device according to the present invention;

[0036] Figure 2 This is a schematic diagram of the clamping structure of the present invention;

[0037] Figure 3 This is a schematic diagram of the upper clamping plate in the clamping structure of the present invention;

[0038] Figure 4 This is a schematic diagram of the lower clamping plate in the clamping structure of the present invention;

[0039] Figure 5 This is a schematic diagram of the structure of the pad in the clamping structure of the present invention;

[0040] Figure 6 This is a schematic diagram of the bracket structure in the clamping structure of the present invention;

[0041] Figure 7 This is a schematic diagram of the second clamping structure of the present invention;

[0042] Figure 8 This is a schematic diagram of the bracket structure in the second clamping structure of the present invention;

[0043] Figure 9 This is a schematic diagram of the upper clamping plate in the second clamping structure of the present invention;

[0044] Figure 10 This is a schematic diagram of the lower clamping plate in the second clamping structure of the present invention;

[0045] Figure 11 This is a schematic diagram of the structure of the pad in the second clamping structure of the present invention;

[0046] Figure 12 This is a schematic diagram of the structure of the present invention when the third flange plate is inserted;

[0047] Figure 13 This is a schematic diagram of the structure of the liner of the present invention;

[0048] Figure 14 This is a schematic diagram of the structure of the flange plate three of the present invention;

[0049] Figure 15 This is a schematic diagram of the fixing structure of the present invention;

[0050] Figure 16 This is a schematic diagram of the structure of the fixing plate of the present invention;

[0051] Figure 17 This is a schematic diagram of the structure of the fixing plate two of the present invention;

[0052] Figure 18 This is a schematic diagram of the structure of the second pad of the present invention;

[0053] Figure 19 This is a schematic diagram of the structure of the second type of steel in this invention;

[0054] Figure 20 This is a schematic diagram of the structure of the steel section 1 in this invention;

[0055] Figure 21 This is a schematic diagram of the present invention with two support seats mounted on the connecting rod.

[0056] Figure 22 This is a structural diagram of the present invention when it is mounted on the first and second mounting bases;

[0057] Figure 23 This is a schematic diagram of the structure of mounting base one in this invention;

[0058] Figure 24 This is a schematic diagram of the structure of mounting base two in this invention;

[0059] Figure 25 This is a schematic diagram of the structure of the present invention when the lower section of steel is clamped;

[0060] Figure 26 This is a schematic diagram of the structure of connecting arm one in this invention;

[0061] Figure 27 This is a schematic diagram of the structure of the present invention when the steel section is positioned.

[0062] Figure 28 This is a schematic diagram of the structure of the present invention when the upper steel section is clamped;

[0063] Figure 29 This is a schematic diagram of the structure of connecting arm two in this invention;

[0064] Figure 30 This is a schematic diagram of the structure of the present invention when the two support bases are removed;

[0065] Figure 31 This is a schematic diagram of the cross-shaped column structure in this invention.

[0066] In the diagram, 1-cross post; 2-clamping structure one; 3-clamping structure two; 4-web plate one; 5-web plate two; 6-flange plate one; 7-flange plate two; 8-upper clamping plate; 9-lower clamping plate; 10-bracket; 11-pad plate one; 12-stiffening plate; 13-groove; 14-fixing structure; 15-flange plate three; 16-lining plate; 171-bevel two; 172-bevel one; 18-fixing plate one; 19-pad plate two; 20-rubber pad; 21-fixing plate II; 22-Support base; 23-Connecting plate; 24-Connecting rod; 25-Support rod; 26-Locking nut; 27-Mounting base one; 28-Mounting base two; 29-Connecting arm one; 30-Clamping plate one; 31-Clamping plate two; 32-T-shaped seat; 33-Sliding hole; 34-Threaded rod two; 35-Connecting arm two; 36-Clamping plate three; 37-Clamping plate four; 38-Positioning component; a-Welding joint one; b-Welding joint two; c-Welding joint three; d-Welding joint four. Detailed Implementation

[0067] like Figures 1 to 31 As shown, a cross-shaped column docking device of the present invention includes a cross-shaped column 1, a clamping structure 1 2, and a clamping structure 2 3.

[0068] The cross-shaped column 1 includes a first web plate 4 and a second web plate 5. The first web plate 4 and the second web plate 5 are welded together in a cross shape. The first web plate 4 has an opening, and a first flange plate 6 is welded to the opening. A second flange plate 7 is welded to the outer side of the second web plate 5.

[0069] When two adjacent cross-shaped columns 1 are welded, the upper and lower distributed web plates 4 are welded to each other, the upper and lower distributed web plates 5 are welded to each other, and the upper and lower distributed flange plates 7 are welded to each other. At this time, clamping structure 2 is used to clamp and fix the upper and lower distributed flange plates 6. There is a reserved space between the upper and lower distributed flange plates 6. The reserved space is used for welding flange plate 15. Clamping structure 3 is used to clamp and fix the upper and lower distributed flange plates 7.

[0070] Both clamping structures 1 (2) and 2 (3) include an upper clamping plate 8, a lower clamping plate 9, and a bracket 10. The bracket 10 has a slot 13, which corresponds to the welding joints of two adjacent cross-shaped posts 1, facilitating welding operations. The upper clamping plate 8 and the lower clamping plate 9 are connected by fixing bolts to form a clamping unit, which is used to clamp and fix the flange plate 6. A pad 11 is provided between the upper clamping plate 8 and the lower clamping plate 9, serving a connecting function to ensure that the clamping thickness of the upper clamping plate 8 and the lower clamping plate 9 is consistent with the thickness of the flange plate 6. The bracket 10 is fixed to the upper clamping plate 8 between the two clamping units by fixing bolts, serving a supporting, connecting, and fixing function. Using the above-mentioned clamping structures 1 (2) and 2 (3) prevents welding deformation during the welding process, ensuring the stability of the weld. Furthermore, both clamping structures 1 (2) and 2 (3) can be used for butt welding of cross-shaped posts 1 of different sizes.

[0071] The upper clamping plate 8, lower clamping plate 9, and corbel 10 are all fixed with stiffening plates 12, which can increase the strength of the steel components. The outer side of the stiffening plates 12 at the upper clamping plate 8 and lower clamping plate 9 is chamfered to reduce interference caused by the fixing bolt connection and increase the usable space.

[0072] A backing plate 16 is welded between the web plate 4 and the flange plate 6. The flange plate 15 is supported on the backing plate 16. The backing plate 16 serves to limit and supplement the fixation, while preventing the solder from flowing out during the welding process. The flange plate 15 has a bevel 172 and a bevel 171. The bevel 172 is welded and fixed to the web plate 4, and the bevel 171 is welded and fixed to the flange plate 6, which increases the welding strength between the flange plate 15 and the web plate 4, and also increases the welding strength between the flange plate 15 and the flange plate 6. A fixing structure 14 is provided between flange plate three 15 and flange plate one 6. The fixing structure 14 includes fixing plate one 18 and fixing plate two 21, which are fixedly connected by fixing bolts. Both fixing plate one 18 and fixing plate two 21 are provided with rubber pads 20. The rubber pads 20 of fixing plate one 18 and fixing plate two 21 simultaneously clamp and fix flange plate three 15 and flange plate one 6. A pad two 19 is provided between fixing plate one 18 and fixing plate two 21. Pad two 19 serves as a connector, ensuring that the clamping thickness of fixing plate one 18 and fixing plate two 21, the thickness of flange plate three 15, and the thickness of flange plate one 6 are consistent. The fixing structure 14 can prevent welding deformation during welding and also serves as a fixing and limiting function.

[0073] A method for connecting a cross-shaped post-connecting device includes the following steps:

[0074] Step A: The materials are cut and welded at the processing plant to obtain the cross post 1.

[0075] The specific welding method for cross post 1 is as follows:

[0076] (1) Cut an opening on the outside of the web 4, and weld the flange 6 to the opening to obtain the steel section (e.g. Figure 20 Simultaneously, flange plate 7 is welded to the outer side of web plate 25 to obtain section steel 2 (e.g. Figure 19 Section steel one and section steel two are processed and welded separately. At this time, the welding space is large, which makes the weld between section steel one and section steel two strong.

[0077] (2) Two support seats 22 are mounted on the connecting rod 24, and each support seat 22 is limited on the connecting rod 24 by the locking nut 26 on the connecting rod 24, so that the two support seats 22 are connected into an integral structure. The support seat 22 is provided with a connecting plate 23, and the support seat 22 is threadedly connected to the support rod 25.

[0078] (3) Mounting seat 1 27 is fixed to the connecting plate 23 of the front support 22 with bolts. Mounting seat 1 27 is used as the load-bearing component for connecting arm 1 and connecting arm 2 later. Then, mounting seat 28 is fixed to the connecting plate 23 of the rear support 22 with bolts. Mounting seat 28 is used for the later installation of positioning components.

[0079] (4) Clamping the lower section steel: Fix the T-shaped seat 32 to the mounting seat 27 with bolts to increase the installation area. Then set the connecting arm 29 on the T-shaped seat 32. The connecting arm 29 is welded with clamping plate 30 and clamping plate 31. The clamping plate 30 and the T-shaped seat 32 are fixed with bolts. Then turn the support rod 25 to raise the support rod 25 to the set height. Then move the section steel 2 horizontally in, with the web plate 25 of section steel 2 facing upward. The flange plate 27 of section steel 2 is supported on the support rod 25. At the same time, the web plate 25 of section steel 2 is set between the clamping plates 31. Then insert the threaded rod 1 between the clamping plates 31. Then tighten the fixing nut 1 on the threaded rod 1. Clamp the web plate 25 of section steel 2 with clamping plate 31. The web plate 25 of section steel 2 at the bottom is set vertically. The lower section of steel can bear the force on the two support seats 22, and can clamp one end of the web plate 25 of the lower section of steel, so that the web plate 25 of the lower section of steel is set vertically (e.g. Figure 25 ).

[0080] (5) Positioning the first section of steel onto the second section of steel in step (4): Place the H-shaped first section of steel, with the web 4 of the first section of steel supported on the clamping plate 30 and the web 5 of the second section of steel. The web 4 of the first section of steel is set horizontally. Then, a positioning element 38 is set in the notch of the mounting base 28. Then, a sliding threaded rod 34 is inserted into the through hole of the mounting base 28 and the sliding hole 33 of the positioning element 38. The positioning element 38 moves toward the first section of steel and abuts against the flange 6 of the first section of steel. Then, a fixing nut 2 is screwed into the sliding threaded rod 34 and locked. At this time, the web 4 of the first section of steel and the web 5 of the second section of steel below form a weld joint 1a and a weld joint 2b (e.g., Figure 27 Considering that the entire section needs to be welded, positioning piece 38 is used to limit the left and right sides of section steel one, so that it is stably supported on the clamping plate 30 and the web plate 5 of section steel two. At the same time, section steel one, which is welded into an integral structure, is placed in the middle position of section steel two to ensure the welding quality of cross column 1 in the later stage.

[0081] (6) Clamping the first section steel and the second section steel above it: Install the second connecting arm 35 on the first clamping plate 30. The second connecting arm 35 is welded with the third clamping plate 36 and the fourth clamping plate 37. Insert the third threaded rod between the third clamping plate 36 and the first clamping plate 30. Then tighten the fixing nut 3 on the third threaded rod. The third clamping plate 36 and the first clamping plate 30 clamp the web of the first section steel.

[0082] Then, the web plate 25 of section steel 2 is placed between the clamping plates 4 and 37. A threaded rod 4 is then inserted between the clamping plates 4 and 37, and a fixing nut 4 is tightened onto the threaded rod 4. The clamping plates 4 and 37 clamp the web plate 25 of section steel 2. At this point, the web plate 25 of section steel 2 at the top is vertically positioned, and the upper and lower sections of section steel 2 are positioned vertically corresponding to each other. The contact points between the web plate 1 of section steel 1 and the web plate 25 of section steel 2 at the top form weld joint 3c and weld joint 4d, forming a welding unit (e.g., ...). Figure 28 Connecting arm 2 (35) clamps steel section 1 and steel section 2 above it, keeping them in a cross shape to prevent them from tilting or moving during welding, thus improving welding quality.

[0083] (7) Welding joints 3c and 4d of the welding unit are fixed at the same time. Welding joints 3c and 4d are set facing upwards and at the same time, welding joints 3c and 4d form a 90° angle. When welding joints 3c and 4d are welded at the same time, the left and right sides of the web 25 are evenly stressed and do not deform. The welding material can be kept at the welding joint and can quickly form a weld. At this time, the applied weld is uniform and the weld fullness meets the design requirements.

[0084] (8) Rotate the welding unit 180° and place it on the ground. Then remove the threaded rod 34 and fixing nut 2 between the mounting base 28 and the positioning piece 38. Remove the positioning piece 38, then unscrew the bolts between the clamping plate 30 and the T-shaped seat 32, and remove the two support seats 22 (e.g., Figure 30 Then, weld joint 1a and weld joint 2b of the welding unit are simultaneously fixed. At this time, weld joint 1a and weld joint 2b are set upwards and form a 90° angle. When weld joint 1a and weld joint 2b are welded simultaneously, the left and right sides of the web 25 are evenly stressed without deformation. The weld can be held at the weld joint, and the weld can be formed quickly. The weld applied at this time is uniform, and the weld fullness meets the design requirements. Then, the connecting arm 129 and connecting arm 235 are removed to obtain the cross column 1 that meets the design requirements.

[0085] In steps (7) and (8), when the lengths of web plate one and web plate two are relatively long, jacks can be set up on the ground to support web plate one and prevent deformation.

[0086] The connecting arm 29 and connecting arm 35 of the present invention clamp one end of the first steel section and the second steel section, so that most of the weld joint is exposed, which facilitates the welding of the entire weld joint.

[0087] Step B: By hoisting, the two cross columns 1 are joined together vertically. At this time, there is a reserved space between the upper and lower flange plates 6, the upper and lower web plates 4 are in contact with each other, the upper and lower flange plates 7 are in contact with each other, and the upper and lower web plates 5 are in contact with each other.

[0088] Step C: Clamp the upper and lower flange plates 7 using clamping structure 23.

[0089] Step D: Clamp the upper and lower flange plates 6 using a clamping structure.

[0090] Step E: Weld the contact points of the upper and lower distributed web plates 4, weld the contact points of the upper and lower distributed flange plates 7, and simultaneously weld the contact points of the upper and lower distributed web plates 5.

[0091] Step F: Remove clamping structure 2 (3) and clamping structure 1 (2).

[0092] Step G: Insert flange plate 3 15 into the reserved space between the upper and lower flange plates 1 6, weld flange plate 3 15 and web plate 4 together, and weld flange plate 3 15 and flange plate 6 together.

[0093] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A method for connecting a cross-shaped column docking device, the cross-shaped column docking device comprising a cross-shaped column, a clamping structure one, and a clamping structure two, the cross-shaped column comprising a web plate one and a web plate two, the web plate one and the web plate two being welded and fixed in a cross shape, the web plate one having an opening, a flange plate one being welded to the opening, and a flange plate two being welded to the outer side of the web plate two, the clamping structure one being used to clamp and fix the upper and lower distributed flange plates one when two adjacent cross-shaped columns are welded, the upper and lower distributed flange plates one having a reserved space between them, the upper and lower distributed flange plates one being... The web plates of the fabric are welded together in contact; the reserved space is used for welding the flange plate three; the clamping structure two is used for clamping and fixing the flange plates two distributed vertically; the flange plates two distributed vertically are welded together in contact; the web plates two distributed vertically are welded together in contact; a liner plate is welded between the web plate one and the flange plate one; the flange plate three is supported on the liner plate; the flange plate three has a bevel one and a bevel two; the bevel one is welded and fixed to the web plate one; the bevel two is welded and fixed to the flange plate one; characterized in that… Includes the following steps: Step A: The materials are cut and welded at the processing plant to obtain the cross-shaped column. (1) Cut an opening on the outside of web plate one, and weld flange plate one to the opening to obtain steel section one. At the same time, weld flange plate two to the outside of web plate two to obtain steel section two. (2) Set the two support seats on the connecting rod, and then use the locking nut on the connecting rod to limit each support seat on the connecting rod. The support seat is provided with a connecting plate, and the support seat is threadedly connected to the support rod. (3) Fix mounting seat one to the connecting plate of the front support seat with bolts, and then fix mounting seat two to the connecting plate of the rear support seat with bolts; (4) Clamp the lower section steel 2: Fix the T-shaped seat on the mounting seat 1 with bolts, and then set the connecting arm 1 on the T-shaped seat. The connecting arm 1 is welded with clamp 1 and clamp 2. The clamp 1 and the T-shaped seat are fixed with bolts. Then turn the support rod to raise the support rod to the set height. Then move the section steel 2 horizontally in, with the web plate 2 of section steel 2 facing upward. The flange plate 2 of section steel 2 is supported on the support rod. At the same time, the web plate 2 of section steel 2 is set between the clamp 2. Then insert the threaded rod 1 between the clamp 2. Then tighten the fixing nut 1 on the threaded rod 1. Clamp the web plate 2 of section steel 2 with clamp 2. The web plate 2 of section steel 2 at the bottom is set vertically. (5) Positioning the first section of steel onto the second section of steel in step (4): Place the H-shaped first section of steel, with the web of the first section of steel supported on the first clamping plate and the web of the second section of steel. The web of the first section of steel is set horizontally. Then, a positioning element is set in the notch of the second mounting seat. Then, threaded rod 2 is inserted into the through hole of the second mounting seat and the sliding hole of the positioning element. The positioning element moves toward the first section of steel and abuts against the flange of the first section of steel. Then, a fixing nut 2 is screwed into the threaded rod 2 and locked. At this time, the web of the first section of steel and the web of the second section of steel below form a weld joint 1 and a weld joint 2 at the contact point. (6) Clamping the first section steel and the second section steel above: Install the second connecting arm on the first clamping plate. The second connecting arm is welded with the third clamping plate and the fourth clamping plate. Insert the third threaded rod between the third clamping plate and the first clamping plate. Tighten the third fixing nut on the third threaded rod. The third clamping plate and the first clamping plate clamp the web of the first section steel. Then, the second web of the second section steel is placed between the fourth clamping plates. Insert the fourth threaded rod between the fourth clamping plates. Tighten the fourth fixing nut on the fourth threaded rod. Clamp the second web of the second section steel with the fourth clamping plate. At this time, the second web of the second section steel above is vertically set. The contact point between the first web of the first section steel and the second web of the second section steel above forms the third and the fourth welding point, forming a welding unit. (7) Weld and fix welding joints three and four of the welding unit simultaneously; (8) Flip the welding unit 180° and place it on the ground. Then remove the threaded rod 2 and the fixing nut 2 between the mounting base 2 and the positioning part. Remove the positioning part. Then unscrew the bolt between the clamp plate 1 and the T-shaped seat. Remove the two support seats. Then weld and fix the welding point 1 and welding point 2 of the welding unit at the same time. Then remove the connecting arm 1 and connecting arm 2 to obtain the cross column. Step B: By hoisting, the two cross columns are joined together vertically. At this time, there is a reserved space between the upper and lower flange plates, the upper and lower web plates are in contact with each other, the upper and lower flange plates are in contact with each other, and the upper and lower web plates are in contact with each other. Step C: Clamp the two upper and lower flange plates using a clamping structure; Step D: Clamp the upper and lower flange plates together using a clamping structure; Step E: Weld the contact points of the upper and lower distributed web plates, weld the contact points of the upper and lower distributed flange plates, and weld the contact points of the upper and lower distributed web plates at the same time. Step F: Remove clamping structure two and clamping structure one; Step G: Insert flange plate 3 into the reserved space between the upper and lower flange plates 1, weld flange plate 3 and web plate 1 together, and weld flange plate 3 and flange plate 1 together.

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