Steel ring beam shaped like Chinese character'ri 'and full penetration welding forming and deformation control method thereof

Abstract

The invention discloses a B-shaped steel ring beam and a full penetration welding forming and deformation control method thereof.The B-shaped steel ring beam comprises a top plate and a bottom plate, an inner side web and an outer side web are welded between the top plate and the bottom plate, inner partition plates distributed annularly are arranged between the top plate and the bottom plate, and a first annular positioning rib and a second annular positioning rib of each inner partition plate are welded to the bottom plate; each inner partition plate is welded to the outer side web plate and the inner side web plate through the first web plate annular positioning rib and the second web plate annular positioning rib respectively, and a middle partition plate is arranged between every two adjacent spaced inner partition plates. By additionally arranging the inner partition plate and the middle partition plate, stress can be evenly transmitted to the annular component under the action of dynamic loads, energy can be dissipated through deformation, generation of concentrated stress is reduced, the safety of the structure is guaranteed, the control method adopts segmented prefabrication-integral forming and multi-layer control over the assembly precision, and the control method is suitable for large-scale popularization and application. Precise positioning is carried out locally, deformation is controlled integrally, deformation is controlled to be + / -1 mm, and the quality requirement is met.

Description

Technical Field

[0001] This invention relates to a H-shaped steel ring beam and its full penetration welding forming and deformation control method. Background Technology

[0002] The circular layout of the ultra-large ring beam composed of high-strength thick plates can effectively constrain the lateral displacement of the structure, maintain the integrity of the system shape, ensure consistent stiffness in all directions when external forces are applied, transmit bending moment evenly along the circumference, and form a continuous force ring, thereby enhancing the overall structure's resistance to deformation.

[0003] The slender frame of the existing ring beam structure is prone to significant swaying under dynamic loads such as earthquakes or strong winds. The vibration of the ring beam can cause dizziness among people inside. Continuous dynamic loads can easily damage the ring beam structure, thereby altering the transmission of force lines and causing damage to the connected structures.

[0004] Meanwhile, the smaller size of the steel columns increases the usable area, but the ring beams often require a large cross-sectional height to maintain rigidity. For aesthetic purposes, the cross-sectional height needs to be controlled, resulting in smaller diameter holes in the vertical partitions, making it impossible for people to pass through and increasing the complexity of the welding process. Summary of the Invention

[0005] The purpose of this invention is to provide a technical solution for a H-shaped steel ring beam and its full penetration welding forming and deformation control method, addressing the shortcomings of existing technologies. This steel ring beam has a simple structure and, through the addition of inner and middle partitions, can uniformly transfer stress to the circumferential components under dynamic loads. Furthermore, it can dissipate energy through deformation, reducing the generation of concentrated stress and ensuring structural safety. The control method employs segmented prefabrication-integral forming, multi-level control of assembly accuracy, precise local positioning, and overall control of deformation, keeping deformation within ±1mm to meet quality requirements.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] The H-shaped steel ring beam is characterized by comprising a top plate and a bottom plate arranged in parallel, with an inner web plate and an outer web plate welded between the top plate and the bottom plate, and an inner partition plate arranged in a ring between the top plate and the bottom plate. The bottom of each inner partition plate is welded to the bottom plate through a first ring positioning rib and a second ring positioning rib. Each inner partition plate is welded to the outer web plate and the inner web plate through a first web plate ring positioning rib and a second web plate ring positioning rib, respectively. A middle partition plate is provided between two adjacent inner partition plates.

[0008] The steel ring beam has a simple structure. By adding inner and middle partitions, it can uniformly transfer stress to the circumferential members under dynamic loads. Furthermore, it can dissipate energy through deformation, reduce the generation of concentrated stress, and ensure the safety of the structure.

[0009] Furthermore, the base plate is laid on the base frame, which is formed by several steel strips arranged in a ring.

[0010] Furthermore, the annular structure formed by splicing the inner web plates and the annular structure formed by splicing the outer web plates are concentric circles.

[0011] Furthermore, the inner partitions are all provided with round holes. The inner partitions are straight plates or irregularly shaped plates. The design of the inner partitions with round holes makes it easier for construction personnel to move between the outer and inner webs, improving the flexibility during welding. The design of the inner partitions with straight plates and irregularly shaped plates makes the stress more even, improving the strength and stability of the entire steel ring beam.

[0012] Furthermore, it also includes steel pipe columns, the bottom of which is welded to the base plate, and the top of which vertically penetrates the top plate.

[0013] The method for full penetration welding and deformation control of the above-mentioned H-shaped steel ring beam is characterized by the following steps:

[0014] Step 1: Select a plane, set the center point O, draw a circular trajectory line around the center point O with radius L, and cut several steel strips of length L. Place the steel strips perpendicular to the bottom surface and arrange them in a ring with the center point O as the center to form a rigid base frame. Use a laser level to level the upper plane of the base frame.

[0015] Step 2: Draw the positioning trajectory line of the base plate with the center point O as the center and L1 as the radius, and lay the base plate on the base frame with L1 as the radius; the base plate is a ring plate formed by welding the first arc plate;

[0016] Step 3: With center point O as the center, draw the trajectory lines of the first positioning rib and the second positioning rib with radii L2 and L3 respectively. Mark the position of the inner partition on the trajectory line of the first positioning rib and the position of the middle partition on the trajectory line of the second positioning rib. With L2 as the radius of the first annular positioning rib, intermittently weld the first annular positioning rib to the base plate. With L3 as the radius of the second annular positioning rib, intermittently weld the second annular positioning rib to the base plate.

[0017] Step 4: Spot weld the inner partitions in sequence according to the positions marked in Step 3;

[0018] Step 5: Using center point O as the center and L4 and L5 as radii, draw the trajectory lines of the first and second web plate annular positioning ribs respectively. Then, using center point O as the center and L5 and L6 as radii, draw the inner web plate positioning trajectory lines and the outer web plate positioning trajectory lines respectively. Spot weld the first and second web plate annular positioning ribs in the order from the inside to the outside, and then perform full welding of the bottom plate and inner partition plate.

[0019] Step 6: Spot weld and assemble the middle partition plate, welding the positioning middle partition plate from both the inner and outer sides;

[0020] Step 7: Bend the outer outer web plate to attach it to the annular positioning rib of the first web plate and spot weld it in place. Attach the bottom of the outer web plate to the bottom plate and spot weld it from the inside. Then weld the outer outer web plate. The top and bottom surfaces of the outer web plate are provided with bevels for welding the top and bottom plates. The sides of the outer web plate are provided with bevels for welding adjacent outer web plates.

[0021] Step 8: Assemble the steel pipe columns and weld them to the base plate;

[0022] Step 9: Assemble the inner web plate and top plate;

[0023] Step 10: After welding, perform flame baking and verify the fabricated steel ring beam.

[0024] This control method adopts segmented prefabrication-integrated molding, multi-level control of assembly precision, precise positioning in local areas, and overall control of deformation, keeping the deformation within ±1mm to meet quality requirements.

[0025] Furthermore, in Step 8, when assembling the steel pipe column, full penetration bevel welding is used. A bevel is opened on the bottom surface of the steel pipe column, and the steel pipe column is welded to the base plate.

[0026] Furthermore, in Step 9, when assembling the inner web plate, a second arc plate is used for welding. The second arc plate is designed as two layers. First, the lower layer of the second arc plate is installed, and then the upper layer of the second arc plate is assembled. The upper layer of the second arc plate has a bevel, and the weld is left on the outside.

[0027] Furthermore, in Step 10, after welding is completed, flame baking is performed, and the fabricated steel ring beam is checked. Point and line baking methods are used. The welding stress is released by point-line gradient baking along the weld direction. A laser level is used for checking until the accuracy of the design is achieved.

[0028] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0029] The steel ring beam structure of the present invention is simple. Not only can it uniformly transfer stress to the circumferential members under dynamic load by adding inner and middle partitions, but it can also dissipate energy through deformation, reduce the generation of concentrated stress, and ensure the safety of the structure.

[0030] The control method of this invention adopts segmented prefabrication-integral molding, multi-level control of assembly accuracy, precise positioning of local parts, and overall control of deformation, keeping the deformation within ±1mm to meet quality requirements. Attached Figure Description

[0031] The present invention will be further described below in conjunction with the accompanying drawings:

[0032] Figure 1 This is a schematic diagram of the steel ring beam in the present invention, which is a shaped steel ring beam and its full penetration welding forming and deformation control method.

[0033] Figure 2 This is a schematic diagram showing the connection between the base frame, bottom plate, inner partition, and middle partition in this invention;

[0034] Figure 3 This is a schematic diagram of the structure of the inner web, outer web, and steel pipe column after welding in this invention;

[0035] Figure 4 This is a flowchart of the full penetration welding forming and deformation control method in this invention;

[0036] Figure 5 This is a schematic diagram of the circular trajectory line and the base plate positioning trajectory line in this invention;

[0037] Figure 6 This is a schematic diagram of the structure of the first positioning rib trajectory line and the second positioning rib trajectory line in this invention;

[0038] Figure 7 This is a schematic diagram showing the connection between the first annular positioning rib, the second annular positioning rib, the base plate, and the base frame in this invention.

[0039] Figure 8 This is a schematic diagram of the structure after the inner partition is installed in this invention;

[0040] Figure 9 This is a schematic diagram of the trajectory lines of the first and second annular positioning ribs of the web plate in this invention.

[0041] Figure 10 This is a schematic diagram of the positioning trajectory lines of the outer and inner web plates in this invention.

[0042] Figure 11 This is a schematic diagram of the structure after the installation of the intermediate partition plate, the first web plate annular positioning rib, and the second web plate annular positioning rib in the present invention.

[0043] Figure 12 for Figure 11 A partial schematic diagram of the connection point between three adjacent inner partitions;

[0044] Figure 13 for Figure 11 A magnified view of section I in the middle.

[0045] In the diagram: 1-steel strip; 2-base frame; 3-bottom plate; 4-first annular positioning rib; 5-second annular positioning rib; 6-inner partition; 7-first web annular positioning rib; 8-second web annular positioning rib; 9-middle partition; 10-outer web; 11-inner web; 12-bevel; 13-steel pipe column; 14-top plate. Detailed Implementation

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0048] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0049] like Figures 1 to 3 As shown, the H-shaped steel ring beam of the present invention includes a top plate 14 and a bottom plate 3 distributed in parallel. The bottom plate 3 is laid on the base frame 2, which is formed by a number of steel strips 1 arranged in a ring.

[0050] An inner web 11 and an outer web 10 are welded between the top plate 14 and the bottom plate 3. The annular structure formed by splicing the inner web 11 and the annular structure formed by splicing the outer web 10 are concentric circles.

[0051] An inner partition plate 6 is provided between the top plate 14 and the bottom plate 3 in a ring. Each inner partition plate 6 has a round hole. The inner partition plate 6 can be a straight plate or an irregular plate. The design of the inner partition plate 6 with round holes makes it easier for construction personnel to move between the outer web plate 10 and the inner web plate 11, improving the flexibility during welding. The design of the inner partition plate 6 with straight plate and irregular plate makes the stress more uniform and improves the strength and stability of the entire steel ring beam.

[0052] The bottom of each inner partition 6 is welded to the base plate 3 via the first annular positioning rib 4 and the second annular positioning rib 5. Each inner partition 6 is welded to the outer web plate 10 and the inner web plate 11 via the first web plate annular positioning rib 7 and the second web plate annular positioning rib 8, respectively. A middle partition 9 is provided between two adjacent inner partitions 6.

[0053] It also includes a steel pipe column 13, the bottom of which is welded to the base plate 3, and the top of which vertically penetrates the top plate 14.

[0054] The steel ring beam has a simple structure. By adding an inner partition 6 and a middle partition 9, it can uniformly transfer stress to the circumferential members under dynamic loads. Furthermore, it can dissipate energy through deformation, reduce the generation of concentrated stress, and ensure the safety of the structure.

[0055] like Figures 4 to 13 The method for full penetration welding and deformation control of the H-shaped steel ring beam of the present invention is shown, including the following steps:

[0056] Step 1: Select a plane, set the center point O, draw a circular trajectory line around the center point O with radius L, and cut several steel strips 1 of length L. Place the steel strips 1 perpendicular to the bottom surface and arrange them in a ring with the center point O as the center to form a rigid base frame 2. Use a laser level to level the upper plane of the base frame 2.

[0057] Step 2: Draw the positioning trajectory line of the base plate 3 with the center point O as the center and L1 as the radius, and lay the base plate 3 on the base frame 2 with L1 as the radius; the base plate 3 is an annular plate formed by welding the first arc plate.

[0058] Step 3: With center point O as the center, draw the first positioning rib trajectory line and the second positioning rib trajectory line with radii L2 and L3 respectively. Mark the position of the inner partition 6 on the first positioning rib trajectory line and the position of the middle partition 9 on the second positioning rib trajectory line. With L2 as the radius of the first annular positioning rib 4, intermittently weld the first annular positioning rib 4 to the base plate 3. With L3 as the radius of the second annular positioning rib 5, intermittently weld the second annular positioning rib 5 to the base plate 3.

[0059] Step 4: Spot weld the inner partition 6 in sequence according to the positions marked in Step 3;

[0060] Step 5: Using center point O as the center and radii L4 and L5 as the radius, draw the trajectory lines of the first web annular positioning rib 7 and the second web annular positioning rib 8 respectively. Then, using center point O as the center and radii L5 and L6 as the radius, draw the positioning trajectory lines of the inner web 11 and the outer web 10 respectively. Spot weld the first web annular positioning rib 7 and the second web annular positioning rib 8 in the order from the inside to the outside. In order to ensure the outer contour dimensions of the structure, when assembling the positioning ribs and webs, the slots in the webs are 2-8mm longer than the design dimensions to facilitate the adjustment of the positioning ribs to align with the trajectory lines.

[0061] After Step 5 is completed and before Step 6, the base plate 3 and inner partition plate 6 are fully welded.

[0062] Step 6: Spot weld and assemble the middle partition plate 9. Weld the middle partition plate 9 from both the inner and outer sides to position it.

[0063] Step 7: Bend the outer outer web plate 10 to attach it to the first web plate annular positioning rib 7 and spot weld it in place. Attach the bottom of the outer web plate 10 to the bottom plate 3 and spot weld it from the inside. Then weld the outer outer web plate 10 in place.

[0064] The top and bottom surfaces of the outer web plate 10 are respectively provided with bevels 12 for welding the top plate 14 and the bottom plate 3.

[0065] The outer web plate 10 has a bevel 12 on its side for welding to the adjacent outer web plate 10.

[0066] Step 8: Assemble the steel pipe column 13 and weld it to the base plate 3. Use full penetration bevel welding 12 to open the bevel 12 on the bottom surface of the steel pipe column 13 and weld the steel pipe column 13 to the base plate 3.

[0067] Step 9: Assemble the inner web plate 11 and the top plate 14. Welding is performed using the second arc plate. The second arc plate is designed in two layers. First, install the lower second arc plate, and then assemble the upper second arc plate to ensure welding quality. The upper second arc plate has a bevel 12 and leaves the weld seam on the outside for easy welding by workers.

[0068] Step 10: After welding, flame baking is performed, and the fabricated steel ring beam is checked. Point and line baking methods are used. The welding stress is released by point-line gradient baking along the weld direction. A laser level is used for checking until the design accuracy is achieved.

[0069] This control method adopts segmented prefabrication-integrated molding, multi-level control of assembly precision, precise positioning in local areas, and overall control of deformation, keeping the deformation within ±1mm to meet quality requirements.

[0070] 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 achieve substantially the same technical effect are all covered within the protection scope of the present invention.

Claims

1. A H-shaped steel ring beam, characterized in that: The device includes a top plate and a bottom plate that are arranged in parallel. An inner web and an outer web are welded between the top plate and the bottom plate. An inner partition is provided between the top plate and the bottom plate in a ring. The bottom of each inner partition is welded to the bottom plate through a first ring positioning rib and a second ring positioning rib. Each inner partition is welded to the outer web and the inner web through a first web ring positioning rib and a second web ring positioning rib, respectively. A middle partition is provided between two adjacent inner partitions.

2. The H-shaped steel ring beam according to claim 1, characterized in that: The base plate is laid on the base frame, which is formed by several steel strips arranged in a ring.

3. The H-shaped steel ring beam according to claim 1, characterized in that: The annular structure formed by splicing the inner web plates and the annular structure formed by splicing the outer web plates are concentric circles.

4. The H-shaped steel ring beam according to claim 1, characterized in that: Each inner partition is provided with a round hole, and the inner partition is a straight plate or an irregularly shaped plate.

5. The H-shaped steel ring beam according to claim 1, characterized in that: It also includes steel pipe columns, the bottom of which is welded to the base plate, and the top of which vertically penetrates the top plate.

6. The method for full penetration welding and deformation control of the H-shaped steel ring beam as described in any one of claims 1 to 5, characterized in that... Includes the following steps: Step 1: Select a plane, set the center point O, draw a circular trajectory line around the center point O with radius L, and cut several steel strips of length L. Place the steel strips perpendicular to the bottom surface and arrange them in a ring with the center point O as the center to form a rigid base frame. Use a laser level to level the upper plane of the base frame. Step 2: Draw the positioning trajectory line of the base plate with the center point O as the center and L1 as the radius, and lay the base plate on the base frame with L1 as the radius. Step 3: Using center point O as the center and radii L2 and L3, draw the trajectory lines for the first and second positioning ribs respectively. Mark the position of the inner partition on the first positioning rib trajectory line and the position of the middle partition on the second positioning rib trajectory line. Using L2 as the radius of the first annular positioning rib, ... The first annular positioning rib is intermittently welded to the base plate, and the second annular positioning rib is intermittently welded to the base plate with L3 as the radius. Step 4: Spot weld the inner partitions in sequence according to the positions marked in Step 3; Step 5: Using center point O as the center and L4 and L5 as radii, draw the trajectory lines of the first and second web plate annular positioning ribs respectively. Then, using center point O as the center and L5 and L6 as radii, draw the inner web plate positioning trajectory lines and the outer web plate positioning trajectory lines respectively. Spot weld the first and second web plate annular positioning ribs in the order from the inside to the outside, and then perform full welding of the bottom plate and inner partition plate. Step 6: Spot weld and assemble the middle partition plate, welding the positioning middle partition plate from both the inner and outer sides; Step 7: Bend the outer outer web plate to attach it to the annular positioning rib of the first web plate and spot weld it in place. Place the bottom of the outer web plate against the base plate and spot weld it from the inside. Then weld the outer outer web plate. The top and bottom surfaces of the outer web plate are respectively provided with bevels for welding the top plate and the base plate. The side of the outer web plate is provided with bevels for welding the adjacent outer web plate. Step 8: Assemble the steel pipe column and weld it to the base plate. Step 9: Assemble the inner web plate and top plate; Step 10: After welding, perform flame baking and verify the fabricated steel ring beam.

7. The method for full penetration welding and deformation control of the H-shaped steel ring beam according to claim 1, characterized in that: In Step 8, when assembling the steel pipe column, full penetration bevel welding is used. A bevel is opened on the bottom surface of the steel pipe column, and the steel pipe column is welded to the base plate.

8. The method for full penetration welding and deformation control of the H-shaped steel ring beam according to claim 1, characterized in that: In Step 9, when assembling the inner web plate, the second arc plate is used for welding. The second arc plate is designed as two layers. First, the lower second arc plate is installed, and then the upper second arc plate is installed. The upper second arc plate has a bevel and the weld is left on the outside.

9. The method for full penetration welding and deformation control of the H-shaped steel ring beam according to claim 1, characterized in that: In Step 10, after welding is completed, flame baking is performed, and the fabricated steel ring beam is checked. Point and line baking methods are used. The welding stress is released by point-line gradient baking along the weld direction. A laser level is used for checking until the accuracy of the design is achieved.

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