A frame column and oblique support connection node structure and construction method thereof

Abstract

The present invention discloses a connection node structure between a frame column and an oblique support and a construction method thereof. The connection node structure comprises a frame column, a crossbeam vertically connected to the frame column, a conversion plate vertically connected to the frame column, and oblique supports connected to the upper and lower ends of the conversion plate; the frame column comprises a spherical column connected to the conversion plate, a column plate distributed in a rectangular shape, and a cross column connected to the interior of the column plate and the upper and lower ends of the spherical column; the frame column, the conversion plate and the oblique support are arranged in a K shape as a whole. During construction, the setting of the conversion plate facilitates the convenient installation of the frame column and the oblique support, and the design of the circular plate in the conversion plate facilitates the axial connection of the oblique support; the setting of the baffle plate on the conversion plate and the connected lap plate facilitates the lap connection of the stirrups in the frame column; in addition, the design of the connecting plate and the stiffening rib plate helps to fix and bear the baffle; the thickened design of the spherical column at the connection node ensures the connection performance and load-bearing performance of the frame column.

Description

Technical Field

[0001] The present invention belongs to the field of building technology, and in particular relates to a frame column and oblique support connection node structure and a construction method thereof. Background Art

[0002] In construction, steel frames are an important form of framework used in housing construction. Steel house frames are easy to install and save assembly time. Steel house frames consist of steel frame columns, beams, and diagonal braces. Traditionally, fixed connections at the junctions between diagonal braces and frame columns have been inconvenient for construction operations and installation adjustments. Furthermore, the strength of these connections is often low, necessitating tailored design. Furthermore, to improve the load-bearing capacity and durability of frame columns, steel bars are often tied around them and concrete is poured. Therefore, the design of the structure at the junctions between frame columns and diagonal braces must meet the requirements for subsequent formwork support. Summary of the Invention

[0003] The present invention provides a frame column and diagonal support connection node structure and a construction method thereof, which are used to solve technical problems such as the conversion connection between frame columns and diagonal supports, the formwork at the connection nodes between frame columns and diagonal supports, and the structural connection of frame columns at the connection nodes.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A frame column and diagonal support connection node structure includes a frame column, a crossbeam vertically connected to the frame column, a transfer plate vertically connected to the frame column, and diagonal supports connected to the upper and lower ends of the transfer plate;

[0006] The frame columns, conversion plates and oblique supports are arranged in a K-shape as a whole. The frame columns include a sun-shaped column connected to the conversion plate, a cross column connected to the upper and lower ends of the sun-shaped column, and column plates distributed in a rectangular shape and connected to the outside of the cross column.

[0007] The conversion plate comprises a rectangular plate connected to the frame column, circular plates connected to the upper and lower ends of the rectangular plate, and coupling holes respectively provided on the two circular plates; there are three conversion plates, which are arranged in parallel; pins are inserted into the coupling holes of the three conversion plates to connect with the oblique supports;

[0008] The sun-shaped bone column includes a side bone column in the shape of a mouth and a horizontal bone column connected to the inside of the mouth; the thickness of the side bone column is greater than the thickness of the column plate, and one side of the side bone column is connected to the conversion plate;

[0009] The rectangular plate in the conversion plate is connected to the side frame column, the rectangular plate is connected to the overlap plate on the inner side of the supporting template, and baffles are connected between adjacent conversion plates.

[0010] Furthermore, a connecting plate is connected to the internal corner where the rectangular plate is connected to the baffle, and a stiffening rib plate is also connected between one side of the connecting plate and the rectangular plate.

[0011] Furthermore, positioning bars are arranged at the upper and lower ends between adjacent rectangular plates, and the length of the positioning bars is adapted to the designed width of the adjacent rectangular plates; reinforcing strip plates are respectively connected to the tops and bottoms of the adjacent rectangular plates.

[0012] Furthermore, the height of the H-shaped column is adapted to the height of the conversion plate, and an angle-shaped part is connected to the internal corner where the side column in the H-shaped column is connected to the rectangular plate, and a stiffening rib plate is connected to the angle-shaped part.

[0013] Furthermore, the inclined support has a box-shaped cross-section and two insertion plates are connected to the side connected to the conversion plate; the insertion plates are arranged in parallel, and the thickness of the insertion plates is adapted to the horizontal distance between adjacent conversion plates.

[0014] Furthermore, the frame column further includes vertical longitudinal bars, stirrups connecting the vertical longitudinal bars, and tie bars connecting between the longitudinal bars; the longitudinal bars are arranged at intervals inside the baffle at the rectangular plate, and the stirrups are connected to the overlapping plate at the rectangular plate.

[0015] Furthermore, fixing parts are correspondingly connected to the tie bars on both the H-shaped column and the rectangular plate connected inside the column plate.

[0016] Furthermore, ear plates are connected to the top of the column plate, and there are at least two ear plates and they are symmetrically arranged.

[0017] Furthermore, for the connection node structure between a frame column and an inclined support, the specific steps are as follows:

[0018] Step 1: According to the dimensions of the frame column at the designed K-shaped connection node, fabricate the column plate, cross-shaped column, and H-shaped column; and according to the elevations of the two inclined supports, design and fabricate the conversion plate and the insertion plates connected to one side of the inclined support; among them, the coupling holes on the conversion plate are fabricated together.

[0019] Step 2: Weld the cross-shaped column inside the column plate, and weld the column plate and the cross-shaped column to both ends of the H-shaped column, and then weld the conversion plate at the H-shaped column; weld two insertion plates to one side of the inclined support, and check and verify whether the thickness of the insertion plates and the width between the corresponding conversion plates are suitable, and adjust in time if not suitable.

[0020] Step 3: Weld ear plates on the top column plate and lift it by a crane; mark the horizontal elevation and column axis position of the top of the already installed bottom frame column in advance with a marker pen; and install the lifted frame column on the bottom frame column.

[0021] Step 4: After the installation and alignment is completed, use a total station to calibrate the verticality and horizontal elevation according to the coordinate position of the frame column; set four directional coordinate points on the top of the frame column to verify the verticality and horizontal elevation. After reaching the design value, fix the four sides of the frame column;

[0022] Step 5: Insert the diagonal support with the plug-in plate on the transfer plate through the pin shaft, and tighten it after confirming the position; tie the longitudinal reinforcement, stirrups and tension bars around the frame column, and support the formwork; weld the lap plate at the connection between the transfer plate and the formwork, and connect the stirrups on the lap plate;

[0023] Step 6: Connect baffles between the rectangular plates of adjacent conversion plates, and connect connecting plates and stiffening ribs between the baffles and rectangular plates; then, check the sealing of the overall formwork and its connections, complete the support after meeting the design requirements, and finally pour concrete.

[0024] Furthermore, before hoisting in step three, focus on inspecting the overall dimensions of the components, the hole position and diameter of the pin shaft, the appearance quality of the welds, the size of the frame column joint grooves and the size of the gap, etc. If the components are unqualified, they must be corrected and trimmed on the ground, and then installed after they are qualified.

[0025] The beneficial effects of the present invention are embodied in:

[0026] 1) The present invention facilitates the convenient installation of frame columns and diagonal supports through the provision of a conversion plate, and the circular plate design in the conversion plate facilitates the axial connection of the diagonal supports, thereby facilitating adjustment and disassembly;

[0027] 2) The present invention facilitates sealing at the connection nodes and lap joints of the stirrups within the frame columns when supporting formwork on the outside of the frame columns through the provision of baffles and connected lap plates. In addition, the design of the connecting plates and stiffening ribs facilitates the fixation and load-bearing of the baffles.

[0028] 3) The cross-shaped frame column of the present invention is changed to a "S"-shaped frame column at the connection node, and the "S"-shaped frame column is thickened to ensure the connection performance and load-bearing performance of the frame column;

[0029] In addition, the frame columns and conversion plates at the connection node sections in the present invention can be prefabricated, and the angles and installation positions of the inclined supports can be adjusted according to the on-site conditions during construction, which can greatly save construction time and ensure installation quality; other features and advantages of the present invention will be explained in the subsequent description, and part of them will become obvious from the description, or can be understood through the implementation of the present invention; the main purpose and other advantages of the present invention can be achieved and obtained through the schemes specifically pointed out in the description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is the connection node structure between frame columns and diagonal supports;

[0031] Figure 2 It is a schematic cross-sectional view of the connection node structure between the frame column and the diagonal brace;

[0032] Figure 3 It is a schematic view of the 1-1 section;

[0033] Figure 4 It is a schematic view of the transfer slab structure;

[0034] Figure 5 It is a schematic view of the 2-2 section;

[0035] Figure 6 It is a schematic view of the 3-3 section;

[0036] Figure 7 It is a schematic view of the 4-4 section;

[0037] Figure 8 It is a schematic view of the 5-5 section;

[0038] Figure 9 It is a schematic view of the connection structure between the transfer slab and the side bone column;

[0039] Figure 10 It is a schematic view of the connection structure among the transfer slab, the H-shaped bone column and the formwork.

[0040] Reference numerals: 1-frame column, 11-column plate, 12-cross-shaped bone column, 13-H-shaped bone column, 131-horizontal bone column, 132-side bone column, 14-longitudinal reinforcement, 15-stirrup, 16-tie bar, 17-formwork, 2-transfer slab, 21-rectangular plate, 22-round plate, 23-coupling hole, 3-insert plate, 4-pin shaft, 5-diagonal brace, 6-cross beam, 7-lap plate, 8-connecting plate, 9-baffle plate. Detailed implementation manners

[0041] Taking a building steel structure frame as an example, as Figure 1 and Figure 2 shown, the connection node structure between the frame column 1 and the diagonal brace 5 includes the frame column 1, the cross beam 6 vertically welded to the frame column 1, the transfer slab 2 welded vertically on the frame column 1, and the diagonal brace 5 connected to the upper and lower ends of the transfer slab 2.

[0042] In this embodiment, the frame column 1, the transfer slab 2 and the diagonal brace 5 are all steel components, and the frame column 1, the transfer slab 2 and the diagonal brace 5 are arranged in a K shape as a whole; the frame column 1 at the connection node includes the H-shaped bone column 13 connected to the transfer slab 2, the column plate 11 distributed in a rectangular shape as Figure 3 shown, and the cross-shaped bone column 12 welded inside the column plate 11 and at the upper and lower ends of the H-shaped bone column 13; among them, lifting lugs are welded on the top of the column plate 11, and there are at least two lifting lugs and they are symmetrically arranged.

[0043] In this embodiment, during installation, positioning ribs are welded between adjacent conversion plates 2 at the upper and lower ends, and the length of the positioning ribs is adapted to the designed width of the adjacent conversion plates 2; the positioning ribs are used to fix the distance between the conversion plates 2 to meet the requirements of the designed width; reinforcing strip plates are respectively welded to the tops and bottoms of the adjacent conversion plates 2, and the reinforcing strip plates are steel strip plates to increase the integrity of the conversion plates 2.

[0044] As Figure 4 shown, the conversion plate 2 includes a rectangular plate 21 welded to the frame column 1, circular plates 22 welded and integrally formed at the upper and lower ends of the rectangular plate 21, and coupling holes 23 respectively provided on the two circular plates 22; the rectangular plate 21 in the conversion plate 2 is vertically welded to the H-shaped column 13; when formwork 17 is supported, a lapping plate 7 is welded between the rectangular plate 21 and the inner side of the formwork 17, and a baffle 9 is welded between adjacent conversion plates 2. Among them, the position of the baffle 9 is adapted to the designed position of other formworks 17 to facilitate joint pouring.

[0045] As Figure 5 and Figure 6 shown, there are three conversion plates 2, and the three conversion plates 2 are arranged in parallel; the inclined support 5 has a box-shaped cross-section, and two insertion plates 3 are connected to the side of the inclined support 5 connected to the conversion plate 2; the insertion plates 3 are arranged in parallel, and the thickness of the insertion plates 3 is adapted to the horizontal distance between adjacent conversion plates 2. During construction, the inclined support 5 is connected to the three conversion plates 2 through insertion of a pin shaft 4 into the coupling holes 23, and a circular steel backing plate is provided between the pin shaft 4 and the conversion plate 2 for fastening connection; in this embodiment, the diameters of the pin shafts 4 required for the upper and lower connected inclined supports 5 are 300 mm and 400 mm, and they are processed respectively by mechanical processing methods.

[0046] As Figure 7 and Figure 10 shown, the H-shaped column 13 includes side columns 132 in a square shape and horizontal columns 131 connected inside the square shape; one side of the side column 132 is connected to the conversion plate 2, and both ends of the side column 132 at the connection part extend outwards to facilitate construction and force bearing; when the side column 132 and the conversion plate 2 are connected, the conversion plate 2 can be aligned and welded with the side column 132, or can be misaligned and connected according to the force design; when the H-shaped column 13 is fabricated, the thickness of the side column 132 is greater than the thickness of the column plate 11 to meet the requirements of vertical and lateral force bearing.

[0047] As Figure 8 and Figure 9 shown, the frame column 1 further includes vertical longitudinal bars 14, stirrups 15 connecting the vertical longitudinal bars 14, and tie bars 16 connecting between the longitudinal bars 14; the longitudinal bars 14 are arranged at intervals inside the baffle 9 at the rectangular plate 21, and the stirrups 15 are connected to the lapping plate 7 at the rectangular plate 21. Fixing members are respectively provided on the H-shaped column 13 and the rectangular plate 21 connected inside the column plate 11 corresponding to the tie bars 16, and the fixing members are rod-shaped steel members to facilitate tying of the tie bars 16.

[0048] In this embodiment, a connecting plate 8 is welded to the inner corner where the rectangular plate 21 meets the baffle 9. A triangular steel stiffening rib is also welded between one side of the connecting plate 8 and the rectangular plate 21. The height of the "S"-shaped column 13 is adapted to the height of the transfer plate 2. An angled piece is welded to the inner corner where the side column 132 of the "S"-shaped column 13 meets the rectangular plate 21. The stiffening rib is welded to the angled piece. Both the angled piece and the stiffening rib are steel plates.

[0049] Combine Figures 1 to 10 , further illustrating the above-mentioned connection node structure between a frame column and an oblique support, the specific steps are as follows:

[0050] Step 1: Design the size of the frame column 1 at the K-shaped connection node according to the frame column 1 and the diagonal support 5, and make the column plate 11, the cross column 12 and the sun-shaped column 13; and according to the elevation of the two diagonal supports 5, design and make the conversion plate 2 and the plug plate 3 connected to one side of the diagonal support 5; wherein, the coupling hole 23 on the conversion plate 2 is set and made together through machining, and the positioning steel bars and the reinforcing steel plates are connected at both ends of the conversion plate 2.

[0051] Step 2: Weld the cross column 12 inside the column plate 11, and weld the column plate 11 and the cross column 12 to the two ends of the Japanese-shaped column 13, and then weld the conversion plate 2 at the Japanese-shaped column 13; weld two insert plates 3 on one side of the inclined support 5, and check whether the thickness of the insert plates 3 and the width of the corresponding conversion plates 2 are suitable. If not, adjust them in time.

[0052] Step 3: Weld the ear plate on the top column plate 11 and lift it with a car crane; mark the horizontal elevation and column axis position of the installed bottom frame column with a marker in advance; and install the lifted frame column 1 on the bottom frame column.

[0053] In this embodiment, the frame column 1 weighs approximately 60 tons. Lifting lugs were welded according to the pre-designed lifting point locations and number for the frame column 1. The lifting lugs are constructed of the same steel plate with a thickness of δ = 40 mm and dimensions of 40 × 400 × 400 mm. The frame column 1 and the attached transfer plate 2 were transported to the pre-designed lifting location on site and then hoisted and rotated using a truck crane. Finally, they were hoisted into place according to the designed orientation and position, and aligned with the bottom frame column.

[0054] Step 4. After the installation and alignment are completed, use a total station to correct the verticality and horizontal elevation according to the coordinate position of frame column 1; set 4 directional coordinate points on the top of frame column 1 to verify the verticality and horizontal elevation. After reaching the design value, fix the four sides of frame column 1.

[0055] Step 5. Insert the inclined support 5 with the plug-in plate 3 on the conversion plate 2 through the pin shaft 4, and tighten it after confirming the position; tie the longitudinal reinforcement 14, stirrups 15 and tension reinforcement 16 around the frame column 1, and support the formwork 17; weld the lap plate 7 at the connection between the conversion plate 2 and the formwork 17, and connect the stirrups 15 on the lap plate 7.

[0056] Step 6: Connect the baffle 9 between the rectangular plates 21 of adjacent conversion plates 2, and connect the connecting plate 8 and the stiffening rib plate between the baffle 9 and the rectangular plate 21; then, check the sealing of the overall formwork 17 and its connections, complete the support after meeting the design requirements, and finally pour concrete.

[0057] During installation, a comprehensive inspection and quality control process is conducted based on the design drawings and detailed design requirements to ensure the correct installation position and joint strength of the frame column 1, transfer plate 2, and diagonal support 5. Key inspections include the overall dimensions of the components, the position and diameter of the pin 4 holes, the appearance and quality of the welds, and the dimensions and gap of the butt joints of the frame column 1. Any unqualified components must be corrected and repaired before ground hoisting. Installation is only permitted after they meet the requirements.

[0058] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that a person skilled in the art can conceive within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention.

Claims

1. A frame column and diagonal support connection node structure, characterized in that: It includes frame columns (1), cross beams (6) vertically connected to the frame columns (1), transfer plates (2) connected vertically to the frame columns (1), and diagonal braces (5) connected to the upper and lower ends of the transfer plates (2); The frame columns (1), transfer plates (2) and diagonal braces (5) are arranged in a K shape as a whole. The frame columns (1) include a Japanese character-shaped column (13) connected to the transfer plate (2), cross-shaped columns (12) connected to the upper and lower ends of the Japanese character-shaped column (13), and column plates (11) connected to the outside of the cross-shaped columns (12) in a rectangular distribution; The diagonal brace (5) has a box-shaped cross-section and is connected with two insertion plates (3) on the side connected to the transfer plate (2); the insertion plates (3) are arranged in parallel, and the thickness of the insertion plates (3) adapts to the horizontal distance between adjacent transfer plates (2); The transfer plate (2) includes a rectangular plate (21) connected to the frame column (1), circular plates (22) connected to the upper and lower ends of the rectangular plate (21), and coupling holes (23) respectively arranged on the two circular plates (22); there are three transfer plates (2), and the three transfer plates (2) are arranged in parallel; the diagonal braces (5) are connected through insertion of a pin shaft (4) into the coupling holes (23) of the three transfer plates (2); in addition, a circular steel backing plate is arranged between the pin shaft (4) and the transfer plate (2); The Japanese character-shaped column (13) includes a side column (132) in a square shape and a horizontal column (131) connected inside the square shape; the thickness of the side column (132) is greater than the thickness of the column plate (11), and one side of the side column (132) is connected to the transfer plate (2); The frame column (1) further includes vertical longitudinal bars (14), stirrups (15) connecting the vertical longitudinal bars (14), and tie bars (16) connecting the longitudinal bars (14); the longitudinal bars (14) are arranged at intervals inside the baffle (9) at the rectangular plate (21), and the stirrups (15) are connected to the lapping plate (7) at the rectangular plate (21); In the transfer plate (2), the rectangular plate (21) is connected to the side column (132), the rectangular plate (21) is connected with a lapping plate (7) inside the formwork (17), and baffles (9) are connected between adjacent transfer plates (2); A connecting plate (8) is connected at the inner corner where the rectangular plate (21) is connected to the baffle (9), and a stiffening rib plate is also connected between one side of the connecting plate (8) and the rectangular plate (21).

2. A frame column and diagonal support connection node structure according to claim 1, characterized in that: Positioning bars are arranged at the upper and lower ends between adjacent rectangular plates (21), and the length of the positioning bars adapts to the designed width of adjacent rectangular plates (21); strengthening strip plates are respectively connected to the tops and bottoms of adjacent rectangular plates (21).

3. The frame column and diagonal support connection node structure according to claim 1, characterized in that: The height of the Japanese character-shaped column (13) adapts to the height of the transfer plate (2), and a corner piece is connected at the inner corner where the side column (132) in the Japanese character-shaped column (13) is connected to the rectangular plate (21), and a stiffening rib plate is connected to the corner piece.

4. The frame column and diagonal support connection node structure according to claim 1, characterized in that: Fixing parts are correspondingly connected to the tie bars (16) on both the Japanese character-shaped column (13) and the rectangular plate (21) connected inside the column plate (11).

5. The frame column and diagonal support connection node structure according to claim 1, characterized in that: Ear plates are connected to the top of the column plate (11), and there are at least two ear plates and they are symmetrically arranged.

6. A construction method for a frame column and oblique support connection node structure according to any one of claims 1 to 5, characterized in that: The specific steps are as follows: Step 1: According to the size of the frame column (1) at the designed K-shaped connection node, a column plate (11), a cross bone column (12) and a sun bone column (13) are manufactured; and according to the elevation of the two oblique supports (5), a conversion plate (2) and a plug plate (3) connected to one side of the oblique support (5) are designed and manufactured; wherein, the connecting shaft hole (23) on the conversion plate (2) is set and manufactured together; Step 2, welding the cross bone column (12) in the column plate (11), and welding the column plate (11) and the cross bone column (12) to both ends of the Japanese bone column (13), and then welding the conversion plate (2) at the Japanese bone column (13); welding two inserts (3) on one side of the inclined support (5), and checking whether the thickness of the insert (3) and the width between the corresponding conversion plates (2) are suitable, and if not suitable, adjust in time; Step 3: Weld the ear plate on the top column plate (11) and lift it by a car crane; mark the horizontal elevation and column axis position of the installed bottom frame column with a marker in advance; and install the lifted frame column (1) on the bottom frame column; Step 4: After the installation and alignment is completed, use a total station to calibrate the verticality and horizontal elevation according to the coordinate position of the frame column (1); set four directional coordinate points on the top of the frame column (1) to verify the verticality and horizontal elevation. After reaching the design value, fix the four sides of the frame column (1); Step 5: Insert the oblique support (5) with the plug plate (3) on the conversion plate (2) through the pin (4), and tighten it after confirming the position; tie the longitudinal reinforcement (14), stirrups (15) and tension reinforcement (16) around the frame column (1), and support the formwork (17); weld the lap plate (7) at the connection between the conversion plate (2) and the formwork (17), and connect the stirrups (15) on the lap plate (7); Step 6: Connect the baffle (9) between the rectangular plates (21) of adjacent conversion plates (2), and connect the connecting plate (8) and the stiffening rib plate between the baffle (9) and the rectangular plate (21); then, test the sealing of the integral formwork (17) and its connection, complete the support after meeting the design requirements, and finally pour concrete.

7. The construction method of a frame column and oblique support connection node structure according to claim 6, characterized in that: Before hoisting in step 3, focus on inspecting the overall dimensions of the components, the hole position and diameter of the pin (4), the appearance quality of the weld, the size of the butt groove of the frame column (1) and the size of the gap, etc. If the components are unqualified, they must be corrected and trimmed on the ground, and then installed after they are qualified.

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