Steel structure frame double-beam and beam-column connecting structure

Abstract

The utility model relates to a steel structure frame double-beam beam-column connecting structure, which belongs to the technical field of steel structures, and comprises a steel column, a steel beam group and a beam-column connecting module, the beam column connecting module comprises an upper connecting partition plate, a lower connecting partition plate and a core column. The steel beam group comprises first steel beams and second steel beams; the core column is located between the upper connecting partition plate and the lower connecting partition plate, one end of the core column is fixedly connected with the upper connecting partition plate, the other end of the core column is fixedly connected with the lower connecting partition plate, the end of the steel column is fixedly connected with the upper connecting partition plate or the lower connecting partition plate, and the joint is located on the side, away from the core column, of the upper connecting partition plate or the lower connecting partition plate. The ends of the first steel beam and the second steel beam are fixedly connected with the core column, the first steel beam and the second steel beam are arranged in parallel and located on the same horizontal plane, and an interval exists between the first steel beam and the second steel beam. The cavity between the first steel beam and the second steel beam serves as an upper and lower floor pipeline channel, and hole forming of the prefabricated floor is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of steel structures, and in particular to a double-beam-column connection structure of a steel structure frame. Background Art

[0002] Steel structures have excellent strength and rigidity. The high strength of steel enables it to withstand large loads and is suitable for building large buildings and industrial facilities, such as high-rise buildings, bridges, factories, etc.

[0003] With the progress of the times, the demand for safer and more efficient building structures is also increasing. Low-rise steel structure buildings, with their unique advantages, are accepted by the public in the low-rise building market and occupy an increasingly important position. Developing steel structure connection structures suitable for the unique structural form of low-rise buildings caters to the future development prospects of steel structure buildings.

[0004] The connection between steel structure beams and steel columns usually adopts the method of full welding of beam flanges and webs, full bolting of beam flanges and webs, or welding of steel beam flanges and bolting of webs. The exposed steel structure beams affect the indoor appearance, so they are generally treated with suspended ceilings to ensure the aesthetics.

[0005] According to the requirements of building construction, there are requirements for the lap length of prefabricated floor slabs on steel beams. However, in low-rise prefabricated steel structure buildings, the cross-section of steel beams is generally small, and there is a hidden danger of insufficient lap length. In order to overcome the hidden danger, it is necessary to increase the cross-section of steel beams. Due to the increase in the cross-section of steel beams, the ceiling must be suspended after the construction of the steel beams is completed, which eventually leads to the defect of the overall structure occupying too many floors. Utility Model Content

[0006] In order to solve the problem that existing steel structure building beams occupy too much floor height space, the present application provides a steel structure frame double beam-column connection structure.

[0007] The present application provides a steel structure frame double beam column connection structure adopts the following technical solution:

[0008] A double-beam-column connection structure of a steel structure frame includes a steel column, a steel beam group and a beam-column connection module; the beam-column connection module includes an upper connecting partition, a lower connecting partition and a core column; the steel beam group includes a first steel beam and a second steel beam; the core column is located between the upper connecting partition and the lower connecting partition, one end of the core column is fixedly connected to the upper connecting partition, and the other end is fixedly connected to the lower connecting partition, the end of the steel column is fixedly connected to the upper connecting partition or the lower connecting partition, and the connection is located on the side of the upper connecting partition or the lower connecting partition away from the core column; the ends of the first steel beam and the second steel beam are both fixedly connected to the core column, the first steel beam and the second steel beam are arranged in parallel and are located in the same horizontal plane, and there is a gap between the first steel beam and the second steel beam.

[0009] By adopting the above technical solution, the beam-column connection module can be fixed to the steel column whether it is placed on the top of a single steel column or between two steel columns in the vertical direction. The beam-column connection module realizes the connection between the steel column and the steel beam group. The precast floor slab is lapped on the steel beam group. Since there is a distance between the first steel beam and the second steel beam, adjusting the distance between the first steel beam and the second steel beam can fully meet the lapping length during the installation of the precast floor slab, and it is no longer limited to having to adjust the size of the cross-section of the steel structure beam. In contrast, the first steel beam and the second steel beam with a small cross-section reduce the occupation of the floor height space. While meeting the lapping length of the precast floor slab, the gap between the first steel beam and the second steel beam can be used as a pipeline passage for the upper and lower floors, avoiding the operation of opening holes in the precast floor slab.

[0010] Optionally, a partition board is arranged between the first steel beam and the second steel beam. The partition board is arranged vertically. One end of the partition board is fixedly connected to the first steel beam, and the other end is fixedly connected to the second steel beam; a plurality of partition boards are provided, and adjacent partition boards are arranged at intervals along the length direction of the first steel beam.

[0011] By adopting the above technical solution, the partition board connects the first steel beam and the second steel beam into one body, ensuring the lateral stability of the steel beam group.

[0012] Optionally, a plurality of steel beam groups are provided, and adjacent steel beam groups are arranged at intervals along the outer wall of the core column.

[0013] By adopting the above technical solution, for different positions in the building, different numbers of steel beam groups are set to achieve the design requirements. For example, if the steel column is an intermediate side column, three or two steel beam groups are required. If the steel column is a corner column, two steel beam groups are required at the top of the corner column and the included angle is ninety degrees.

[0014] Optionally, the core column includes a connecting plate. The connecting plate is arranged vertically. One end of the connecting plate is fixedly connected to the outer wall of the core column, and the other end is in a cantilever shape. The number of connecting plates provided is twice the number of steel beam groups, and adjacent connecting plates are arranged at intervals along the outer wall of the core column; the webs of the first steel beam and the second steel beam are bolted to the corresponding connecting plates.

[0015] By adopting the above technical solution, the first steel beam and the second steel beam are bolted to the corresponding connecting plates, realizing the preliminary fixation of the first steel beam, the second steel beam and the beam-column connection module, and providing convenience for subsequent secondary fixation.

[0016] Optionally, the end of the upper flange of the first steel beam is fixed to the edge of the upper connecting partition board, and the end of the lower flange of the first steel beam is fixed to the edge of the lower connecting partition board; the end of the upper flange of the second steel beam is fixed to the edge of the upper connecting partition board, and the end of the lower flange of the second steel beam is fixed to the edge of the lower connecting partition board.

[0017] By adopting the above technical solution, after the preliminary bolt fixation of the first steel beam, the second steel beam and the beam-column connection module, the secondary fixation of the first steel beam, the second steel beam and the beam-column connection module is realized by welding at the corresponding positions of the end of the upper flange and the edge of the upper connecting partition, further improving the stability of the connection.

[0018] Optionally, the top end of the connecting plate is fixed to the inner wall of the upper flange of the first steel beam or the second steel beam, and the bottom end of the connecting plate is fixed to the inner wall of the lower flange of the first steel beam or the second steel beam.

[0019] By adopting the above technical solution, the connecting plate can transfer the force, so that the connecting plate plays a further supporting role for the first steel beam and the second steel beam.

[0020] Optionally, bevels are provided at the ends of the upper flanges and the lower flanges of the first steel beam and the second steel beam.

[0021] By adopting the above technical solution, setting bevels helps to improve the welding quality. The existence of bevels can increase the penetration depth and fusion area of the weld, making the connection between the steel beam group and the beam-column connection module more firm and tight; bevels can improve the mechanical properties of the weld. When the weld bears external forces, the stress distribution is more uniform, reducing the stress concentration phenomenon; bevels help to improve the welding efficiency. A reasonably designed bevel can make the welding process smoother, reduce the generation of welding defects, and improve the welding speed.

[0022] Optionally, the core column is a box-shaped core column.

[0023] Optionally, the steel column is an H-shaped steel, a box-shaped column or a circular pipe column.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. Compared with the conventional technology, the steel structure double beams adopted in the present application can provide a very wide lapping plane, which is beneficial to the lapping and mutual connection of precast floor slabs, and improves the safety during the installation and use of the floor slabs. The wide lapping plane eliminates the need for chamfering of the precast floor slabs at the position of the steel columns;

[0026] 2. The two steel structure double beams share half of the floor load respectively, that is, the first steel beam and the second steel beam share half of the floor load respectively, with better lateral stability, no limit on the lapping width, which can effectively reduce the cross-sectional size of the beam, increase the net usable height of the building or reduce the floor height, and has good economic benefits;

[0027] 3. The cavity formed between the first steel beam and the second steel beam can be used as a pipeline channel for the upper and lower floors, avoiding the opening operation of the precast floor slabs. Brief Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present application;

[0029] Figure 2 It is a schematic structural diagram of the beam-column connection module;

[0030] Figure 3 It is a schematic structural diagram of the steel beam group;

[0031] Figure 4 It is a partial schematic structural diagram of Embodiment 2 of the present application;

[0032] Figure 5 is Figure 4 a partial enlarged schematic diagram of part A in

[0033] Figure 6 It is a partial cross-sectional view showing the internal structure of the locking box.

[0034] In the figure, 1 is a steel column; 2 is a beam-column connection module; 21 is an upper connection partition; 22 is a lower connection partition; 23 is a core column; 231 is a connection plate; 3 is a steel beam group; 31 is a first steel beam; 32 is a second steel beam; 4 is a partition plate; 5 is a groove; 6 is a bottom formwork; 7 is a locking assembly; 71 is a first connecting rod; 72 is a second connecting rod; 73 is a third connecting rod; 74 is a locking box; 741 is a rack; 742 is a gear; 743 is a handwheel; 744 is a limit pin; 8 is a plug. Detailed implementation manners

[0035] The following further elaborates on the present application in conjunction with the attached Figures 1-6 for a more detailed description.

[0036] Embodiment 1 of the present application discloses a connection structure for double beams of a steel structure frame.

[0037] Embodiment 1: Referring to Figure 1 , a connection structure for double beams of a steel structure frame includes a steel column 1, a beam-column connection module 2, and a steel beam group 3. The steel column 1 is vertically arranged, and a plurality of steel columns 1 are arranged along the vertical direction. The beam-column connection module 2 is located between adjacent steel columns 1. The steel column 1 is an H-shaped steel, a box-shaped column, or a circular tube column.

[0038] Referring to Figure 2, the beam-column connection module 2 includes an upper connection partition 21, a lower connection partition 22 and a core column 23. The core column 23 is a box-shaped core column 23, but is not limited to the box shape and can also be other shapes. The upper connection partition 21 is located above the lower connection partition 22 and both are horizontally arranged. The core column 23 is located between the upper connection partition 21 and the lower connection partition 22. The top end of the core column 23 is fixedly connected to the upper connection partition 21, and the bottom end of the core column 23 is fixedly connected to the lower connection partition 22. The core column 23 includes a connection plate 231. The connection plate 231 is vertically arranged. There are multiple connection plates 231. One end of the connection plate 231 is fixedly connected to the outer wall of the core column 23, and the other end of the connection plate 231 is in a cantilever shape; adjacent connection plates 231 are arranged at intervals along the outer wall of the core column 23 in the circumferential direction.

[0039] Reference Figure 1 and Figure 3 , the steel beam group 3 includes a first steel beam 31 and a second steel beam 32. The first steel beam 31 and the second steel beam 32 are located on the same horizontal plane and are arranged parallel to each other. There is a distance between the first steel beam 31 and the second steel beam 32. A partition plate 4 is arranged between the first steel beam 31 and the second steel beam 32. One end of the partition plate 4 is fixedly connected to the first steel beam 31, and the other end is fixedly connected to the second steel beam 32. There are multiple partition plates 4, and adjacent partition plates 4 are arranged at intervals along the length direction of the first steel beam 31.

[0040] Reference Figure 1 and Figure 2 , there are multiple steel beam groups 3, and adjacent steel beam groups 3 are arranged at intervals along the outer wall of the core column 23 in the circumferential direction. The number of connection plates 231 arranged is twice the number of steel beam groups 3. The webs of the first steel beam 31 and the second steel beam 32 are bolted to the corresponding connection plates 231, that is, bolt holes are provided on the connection plates 231, at the end parts of the webs of the first steel beam 31 and at the end parts of the webs of the second steel beam 32, which is convenient for bolted fixed connection.

[0041] Reference Figure 1 , Figure 2 and Figure 3 , while the webs of the first steel beam 31 and the second steel beam 32 are bolted to the corresponding connection plates 231, the end part of the upper flange of the first steel beam 31 is welded to the edge of the upper connection partition 21, the end part of the lower flange of the first steel beam 31 is welded to the edge of the lower connection partition 22, the end part of the upper flange of the second steel beam 32 is welded to the edge of the upper connection partition 21, the end part of the lower flange of the second steel beam 32 is welded to the edge of the lower connection partition 22, the top end of the connection plate 231 is welded to the inner wall of the upper flange of the corresponding first steel beam 31 or second steel beam 32, and the bottom end of the connection plate 231 is welded to the inner wall of the lower flange of the corresponding first steel beam 31 or second steel beam 32. Grooves 5 are provided at the end parts of the upper flanges and the lower flanges of the first steel beam 31 and the second steel beam 32. The provision of the grooves 5 provides convenience for the welding process.

[0042] The implementation principle of a double-beam connection structure between steel columns in a steel structure frame in an embodiment of the present application is as follows: Whether the beam-column connection module 2 is placed on the top of a single steel column 1 or between two steel columns 1 in the vertical direction, it can be fixed to the steel column 1. The beam-column connection module 2 realizes the connection between the steel column 1 and the steel beam group 3. The precast floor slab is lapped on the steel beam group 3. Since there is a distance between the first steel beam 31 and the second steel beam 32, adjusting the distance between the first steel beam 31 and the second steel beam 32 can fully meet the lapping length during the installation of the precast floor slab, and it is no longer limited to having to adjust the size of the steel structure beam section. In contrast, the first steel beam 31 and the second steel beam 32 with a small cross-section reduce the occupation of the floor height space. While meeting the lapping length of the precast floor slab, the gap between the first steel beam 31 and the second steel beam 32 can be used as a pipeline passage for the upper and lower floors, avoiding the operation of opening holes in the precast floor slab.

[0043] Example 2: The difference from Example 1 lies in referring to Figure 4 、 Figure 5 and Figure 6, a bottom formwork 6 and a locking assembly 7 are detachably connected between the first steel beam 31 and the second steel beam 32. The locking assembly 7 includes a first connecting rod 71, a second connecting rod 72, a third connecting rod 73 and a locking box 74. One end of the first connecting rod 71 is fixedly connected to the bottom formwork 6, and the fixing method can be bolt fixing. The other end of the first connecting rod 71 is slidably connected to the locking box 74. With the use state as a reference, the sliding direction of the first connecting rod 71 slides along the vertical direction. One end of the second connecting rod 72 is fixedly connected to the outer wall of the locking box 74, and the other end is actively connected to one end of the third connecting rod 73. A bolt is provided at the rotational connection of the third connecting rod 73 and the second connecting rod 72, and the rotation of the bolt realizes the locking of the third connecting rod 73 relative to the second connecting rod 72. A gear 742 is rotatably provided in the locking box 74. A rack 741 is fixedly connected to the end of the first connecting rod 71 away from the bottom formwork 6. The rack 741 penetrates through the locking box 74 and meshes with the gear 742 at the same time. A handwheel 743 is rotatably provided on the outer wall of the locking box 74. One end of the handwheel 743 penetrates into the interior of the locking box 74 and is fixedly connected to the gear 742. Positioning holes are provided on the outer wall of the locking box. A limit pin 744 is slidably provided on the handwheel 743, and the limit pin 744 slides along the direction of approaching or departing from the positioning hole. A plurality of positioning holes are provided at intervals, and the connection lines of all the positioning holes are circular and the center of the circle is the place where the handwheel 743 penetrates through the locking box 74. A plurality of locking assemblies 7 are provided, and the locking assemblies 7 are symmetrically distributed on both sides of the bottom formwork 6. In the use state: the third connecting rod 73 rotates to a state perpendicular to the second connecting rod 72, the second connecting rod 72 is in a vertical state, the third connecting rod 73 is lapped at the edge of the lower flange of the first steel beam 31 or the second steel beam 32, the bottom formwork 6 is located between the first steel beam 31 and the second steel beam 32, and the plane where the top of the bottom formwork 6 is located is coplanar with the plane where the bottom of the first steel beam 31 is located, so as to facilitate the secondary pouring of the gap between the first steel beam 31 and the second steel beam 32 on site.

[0044] Reference Figure 4 , a plurality of wire passing holes are provided on the bottom formwork 6, and plugs 8 are threadedly connected to the bottom formwork 6. During secondary pouring, the corresponding plugs 8 are taken out, and the wire pipes are inserted into the corresponding wire passing holes, so as to reserve a hole channel for floor wiring without damaging the precast floor slab.

[0045] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A double beam-column connection structure of a steel structure frame, comprising a steel column (1), characterized in that: It also comprises a steel beam group (3) and a beam-column connection module (2); the beam-column connection module (2) comprises an upper connection partition (21), a lower connection partition (22) and a core column (23); the steel beam group (3) comprises a first steel beam (31) and a second steel beam (32); the core column (23) is located between the upper connection partition (21) and the lower connection partition (22); one end of the core column (23) is fixedly connected to the upper connection partition (21), and the other end is fixedly connected to the lower connection partition (22). The ends of the steel column (1) are fixedly connected to the upper connecting partition (21) or the lower connecting partition (22), and the connection point is located on the side of the upper connecting partition (21) or the lower connecting partition (22) away from the core column (23); the ends of the first steel beam (31) and the second steel beam (32) are both fixedly connected to the core column (23), the first steel beam (31) and the second steel beam (32) are arranged in parallel and located on the same horizontal plane, and there is a gap between the first steel beam (31) and the second steel beam (32).

2. A double beam-column connection structure for a steel structure frame according to claim 1, characterized in that: A partition plate (4) is provided between the first steel beam (31) and the second steel beam (32); the partition plate (4) is vertically arranged, one end of the partition plate (4) is fixedly connected to the first steel beam (31), and the other end of the partition plate (4) is fixedly connected to the second steel beam (32); a plurality of partition plates (4) are provided, and adjacent partition plates (4) are arranged at intervals along the length direction of the first steel beam (31).

3. A steel structure frame double beam-column connection structure according to claim 1 or 2, characterized in that: A plurality of steel beam groups (3) are provided, and adjacent steel beam groups (3) are arranged at intervals along the circumferential outer wall of the core column (23).

4. The double beam-column connection structure of a steel structure frame according to claim 1, characterized in that: The core column (23) comprises a connecting plate (231), the connecting plate (231) being arranged vertically, one end of the connecting plate (231) being fixedly connected to the outer wall of the core column (23), and the other end being cantilevered, the number of connecting plates (231) being arranged being twice the number of the steel beam group (3), and adjacent connecting plates (231) being arranged at intervals along the circumferential outer wall of the core column (23); the web of the first steel beam (31) and the web of the second steel beam (32) being bolted to the corresponding connecting plates (231).

5. A double beam-column connection structure for a steel structure frame according to claim 4, characterized in that: The upper flange end of the first steel beam (31) is fixed to the edge of the upper connecting partition (21), and the lower flange end of the first steel beam (31) is fixed to the edge of the lower connecting partition (22); the upper flange end of the second steel beam (32) is fixed to the edge of the upper connecting partition (21), and the lower flange end of the second steel beam (32) is fixed to the edge of the lower connecting partition (22).

6. A steel structure frame double beam-column connection structure according to claim 5, characterized in that: The top end of the connecting plate (231) is fixed to the inner wall of the upper flange of the first steel beam (31) or the second steel beam (32), and the bottom end of the connecting plate (231) is fixed to the inner wall of the lower flange of the first steel beam (31) or the second steel beam (32).

7. The double beam-column connection structure of a steel structure frame according to claim 1, characterized in that: The upper flange ends and lower flange ends of the first steel beam (31) and the second steel beam (32) are both provided with grooves (5).

8. The double beam-column connection structure of a steel structure frame according to claim 1, characterized in that: The stem (23) is a box-shaped stem (23).

9. The double beam-column connection structure of a steel structure frame according to claim 1, characterized in that: The steel column (1) is an H-shaped steel column, a box column or a circular tube column.

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