A beam-column composite frame with a corrugated connection node

Abstract

The application provides a beam-column composite frame with a wave-shaped connecting node, a connecting segment connected with the end of a steel beam is arranged on a profile steel column, and a buffer unloading structure is arranged in the connecting area between the steel beam and the connecting segment; the buffer unloading structure comprises a segment wave plate connected with the wing plate of the connecting segment and a beam wave plate connected with the wing plate of the steel beam, a continuous wave segment is formed between the segment wave plate and the beam wave plate, and a connecting wave plate matched with the wave of the wave segment is embedded on the outer surface of the wave segment; a connecting back plate is connected and arranged on the connecting wave plate, and the connecting back plate covers the connecting wave plate and the wing plate where the wave segment is located. Through the embedded connection of the wave plates, the application is beneficial to the formation of the buffer of the load of the beam, so that the ductility and the shear resistance at the connecting position of the steel beam and the connecting segment are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure building, in particular to a beam-column composite frame with wave-shaped connecting nodes. BACKGROUND

[0002] With the improvement of national economy and the progress of engineering technology, steel structure has begun to become the mainstream structure form. The initial steel composite structure construction method is to prefabricate steel columns and steel beams in a processing plant, and to connect the steel beams and the steel beams together at the site by using high-strength bolts or welding. This construction method needs to perform welding operation at the site, which is easy to cause fire, has small construction speed, requires high site construction conditions, and the existence of welds makes the seismic performance of the composite structure poor and the ductility small, so that construction auxiliary processes or local reinforcing members need to be added to meet the requirements of the overall strength, rigidity and stability of the structure, which inevitably causes certain resource waste and construction period extension, which is contrary to the original intention of green building. The cantilever beam segment type steel composite structure is widely used. The traditional cantilever beam segment type steel composite structure welds the cantilever segment of the steel beam and the steel column together in the processing plant, and connects the steel beam end and the steel beam by using full bolt splicing at the site. However, this construction method has many section weakenings, poor ductility at the weld and bolt connection under the action of earthquake, and high technical requirements for construction workers. On the basis of the non-waiting steel composite structure model, it is difficult to meet the high construction precision requirement. SUMMARY

[0003] The purpose of the present application is to provide a beam-column composite frame which is beneficial to buffering the load of the beam and improves the ductility and shear resistance at the connecting position.

[0004] To this end, the present application adopts the following technical solutions:

[0005] A beam-column composite frame with wave-shaped connecting nodes, a connecting segment connected with the end of a steel beam is arranged on a steel column, and a buffer unloading structure is arranged in the connecting area between the steel beam and the connecting segment; the buffer unloading structure comprises a segment corrugated plate connected with the wing plate of the connecting segment and a beam corrugated plate connected with the wing plate of the steel beam, a continuous corrugated segment is formed between the segment corrugated plate and the beam corrugated plate, and a connecting corrugated plate matched with the corrugation of the corrugated segment is embedded on the outer surface of the corrugated segment; a connecting back plate is connected and arranged on the connecting corrugated plate, the connecting back plate covers the connecting corrugated plate and the wing plate where the corrugated segment is located, is sealingly arranged, and forms a corrugated cavity in the connecting corrugated plate and the corrugated segment, and a through groove is formed in the wall of each level of the corrugated cavity to form an integral structure of the filling layer arranged in each level of the corrugated cavity; a connecting piece penetrating the filling layer and connected with the steel beam and the connecting segment is arranged on the connecting back plate, and the connecting piece is connected with the corrugated part of the connecting corrugated plate and the corrugated segment.

[0006] Further, the connecting back plate is provided with a closing plate on the transverse direction side end face, and the closing plate is connected with the transverse side end face of the segmental corrugated plate and the beam corrugated plate.

[0007] Further, a pouring pipe is connected on the connecting back plate, and one end of the pouring pipe is in communication with the corrugated cavity.

[0008] Further, a discharging pipe which is in communication with the corrugated cavity and the outside is further provided on the connecting back plate, and the discharging pipe can cooperate with the pouring pipe to form a gas pressure balance state.

[0009] Further, a limiting plate is arranged in the connecting area between the steel beam and the connecting segment, and the limiting plate is connected with the web plate of the steel beam and the connecting segment at the same time, so that the limiting plate forms a clamping limiting state or a reinforced connection state.

[0010] Further, a reinforcing rib which is perpendicular to the profile steel column is arranged on the connecting segment.

[0011] Further, the reinforcing rib comprises a horizontal reinforcing rib and a vertical reinforcing rib, the horizontal reinforcing rib is arranged between the web plate of the connecting segment and the profile steel column, and the vertical reinforcing rib is arranged between the wing plate of the connecting segment and the profile steel column.

[0012] Further, a reinforcing plate is arranged between the opposite wing plates of the profile steel column, and the reinforcing plate is arranged in the horizontal direction of the position of the wing plate of the connecting segment.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] The corrugated plate embedded connection is beneficial to form the load buffering of the beam, so that the ductility and shear resistance of the connecting position of the steel beam and the connecting segment are effectively improved. Meanwhile, the connecting position of the connecting piece is located on the inclined surface of the corrugated part, which is beneficial to change the shear force into tension, and increase the stress performance of the connecting piece. The connecting mode changes the tension of the beam load into the tension of the pouring material in the cavity by the corrugated plate, and plays the common advantages of the pouring material and the steel structure, so that the load capacity of the connecting joint is greatly increased. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0016] Figure 2 It is a schematic diagram of the structure of the corrugated plate of the present application;

[0017] Figure 3 It is a schematic diagram of the structure of the present application Figure 1 at A;

[0018] Figure 4 For the present invention Figure 1 Schematic diagram of the structure at point B;

[0019] Figure 5 For the present invention Figure 1 Schematic diagram of the structure at point C;

[0020] Figure 6 This is a schematic diagram of the structure of the corrugated plate of the present invention;

[0021] Figure 7 This is a schematic diagram of the installation position of the segmental corrugated plate of the present invention;

[0022] Figure 8 This is a schematic diagram of the installation position of the corrugated beam plate of the present invention.

[0023] The markings in the attached diagram are as follows: 1. Steel column; 2. Steel beam; 3. Connecting segment; 4. Connecting corrugated plate; 5. Segment corrugated plate; 6. Beam corrugated plate; 7. Vertical reinforcing rib; 8. Horizontal reinforcing rib; 9. Reinforcing plate; 10. Limiting plate; 11. Connector; 12. Casting pipe; 13. Connecting back plate; 14. Through groove; 15. Discharge pipe; 16. Sealing plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0025] like Figures 1-8 As shown, a beam-column composite frame with a corrugated connection node is provided. A connecting segment 3 is provided on the steel column 1, connecting to the end of a steel beam 2. A buffer unloading structure is provided in the connection area between the steel beam 2 and the connecting segment 3. The buffer unloading structure includes a segmental corrugated plate 5 connected to the flange of the connecting segment 3, and a beam corrugated plate 6 connected to the flange of the steel beam 2. The segmental corrugated plate 5 and the beam corrugated plate 6 form a continuous corrugated section. A connecting corrugated plate 4, matching the corrugations, is fitted onto the outer surface of the corrugated section. The connecting corrugated plate 4 is connected to... A connecting back plate 13 is provided, which covers the connecting corrugated plate 4 and the flange where the corrugated section is located, and is sealed. Corrugated cavities are formed in the connecting corrugated plate 4 and the corrugated section. At the same time, through grooves 14 are opened on the walls of each level of corrugated cavity so that the filling layer set in each level of corrugated cavity forms an integral structure. A connector 11 is provided on the connecting back plate 13, which passes through the filling layer and connects to the steel beam 2 and the connecting section 3. The connector 11 is connected to the inclined surface of the corrugated part of the connecting corrugated plate 4 and the corrugated section.

[0026] like Figure 1 , 3As shown in Figure 8, in this embodiment, the corrugations of the segmental corrugated plate 5 are arranged longitudinally and spot-welded to the flange of the connecting segment 3, the corrugations of the beam corrugated plate 6 are arranged longitudinally and spot-welded to the flange of the steel beam 2, and the corrugations of the connecting corrugated plate 4 are arranged longitudinally and spot-welded to the connecting back plate 13; and after the steel beam 2 and the connecting segment 3 are connected, the beam corrugated plate 6 and the segmental corrugated plate 5 are connected to form continuous corrugations to avoid affecting the fitting with the connecting corrugated plate 4.

[0027] In this embodiment, the crests and troughs of the connecting corrugated plate 4 are correspondingly fitted onto the troughs and crests of the segmental corrugated plate 5 and the beam corrugated plate 6. That is, the crests of the connecting corrugated plate 4 are fitted onto the troughs of the segmental corrugated plate 5 or the beam corrugated plate 6, and the troughs of the connecting corrugated plate 4 are fitted onto the crests of the segmental corrugated plate 5 or the beam corrugated plate 6. In this embodiment, the connecting corrugated plate 4, the segmental corrugated plate 5, and the beam corrugated plate 6 only have slight differences in their crests and troughs due to different installation positions, but in essence, they use the same corrugated plates, and the through slots 14 are also the same.

[0028] It should be noted that the interlocking connection between the corrugated plate 4 and the segmental corrugated plate 5 and the beam corrugated plate 6 helps to buffer the load on the beam, effectively improving the ductility and shear resistance at the connection point between the steel beam 2 and the connecting segment 3. After the steel beam 2 is installed, the load on the steel beam 2 will cause horizontal shear stress at the connection point between the steel beam 2 and the connecting segment 3, which may lead to fracture at the connection point, thereby affecting the strength of the connection range and posing a safety hazard to the building. The corrugated plate effectively avoids stress concentration, converting the original shear stress into tensile force between the corrugated plate 4, the segmental corrugated plate 5, and the beam corrugated plate 6, improving the structural strength and shear resistance at the connection point and enhancing the ductility of the overall structure.

[0029] like Figures 1-5 As shown, in this embodiment, the connector 11 is a connecting bolt, and the connectors 11 are arranged in an array on the connecting back plate 13. The array arrangement can improve the reliability of the connection, make each connector 11 bear the force evenly, and avoid stress concentration.

[0030] like Figure 2 As shown, both ends of the connecting back plate 13 in the lateral direction are provided with a sealing plate 16. The sealing plate 16 is connected to the end faces of the segmental corrugated plate 5 and the beam corrugated plate 6 in the lateral direction, so that a closed casting space is formed between the connecting back plate 13 and the flange. The setting of the sealing plate 16 can further increase the strength of the overall structure.

[0031] The closure plate 16 of the present embodiment is separately arranged on the segmental corrugated plate 5, the beam corrugated plate 6 and the connecting corrugated plate 4, and after being fastened by the connecting member 11, the closure plate 16 of the connecting corrugated plate 4 is closed with the closure plate 16 of the segmental corrugated plate 5 and the closure plate 16 of the beam corrugated plate 6, and the closure plate 16 of each is arranged at the closed position and can be provided with felt pad sealing.

[0032] As shown in Figures 1-5 The connecting back plate 13 is provided with the pouring pipe 12 connected therewith, and one end of the pouring pipe 12 is communicated with the corrugated cavity. In addition, the connecting back plate 13 is further provided with the discharge pipe 15 communicated with the corrugated cavity and the outside, and the discharge pipe 15 can be matched with the pouring pipe 12 to form the air pressure balance state.

[0033] The pouring pipe 12 is arranged in the corrugated cavity between the wave crest and the wing plate of the segmental corrugated plate 5 through the connecting back plate 13 and pours the pouring material, and the pouring pipe 12 of the present embodiment is uniformly provided with four in the width direction of the connecting corrugated plate 4; the pouring material enters the corrugated cavity between the wave trough of the connecting corrugated plate 4 and the connecting back plate 13 through the longitudinal through slot 14 arranged in the wave trough of the connecting corrugated plate 4, and simultaneously enters the corrugated cavity between the wave trough of the next stage connecting corrugated plate 4 and the connecting back plate 13, and the pouring material entering the corrugated cavity enters the cavity between the wave crest and the wing plate of the segmental corrugated plate 5 of the stage through the longitudinal through slot 14 arranged in the segmental corrugated plate 5, and then the pouring material fills the corrugated cavities of all stages according to the flow rule described above, so that the pouring materials between the adjacent corrugated cavities are connected as a whole.

[0034] The discharge pipe 15 is arranged in the corrugated cavity between the wave crest and the wing plate of the beam corrugated plate 6 through the connecting back plate 13, so that the pouring space is communicated with the outside, and the discharge pipe 15 of the present embodiment is uniformly provided with four in the width direction of the connecting corrugated pipe 4. The purpose of the discharge pipe 15 is to balance the air pressure, so that the pouring material can pass through all the corrugated cavities and the abutting surfaces between the connecting corrugated plate 4 and the segmental corrugated plate 5 and the beam corrugated plate 6, and form a firm connection.

[0035] In the present embodiment, at least one longitudinal through slot 14 is arranged at the wave trough of the connecting corrugated plate 4, and at least one longitudinal through slot 14 is arranged at the wave crest of the segmental corrugated plate 5 and the beam corrugated plate 6, and preferably the through slot 14 on the connecting corrugated plate 4 and the through slot 14 on the segmental corrugated plate 5 and the beam corrugated plate 6 are arranged at an angle in the unified area (as shown in Figures 3-5 The flowability of the pouring material is better when the filling layer is poured. The longitudinal through slot 14 is arranged at multiple positions, so as to facilitate the flow of the pouring material, and the pouring material mainly forms a connection between the pouring materials in the adjacent corrugated cavities, so as to increase the compressive strength. The pouring material of the present embodiment generally refers to special concrete or resin, and the purpose of the arrangement is to increase the compressive performance of the whole.

[0036] As Figure 1 shown, specifically, the connecting area between the steel beam 2 and the connecting segment 3 is provided with a limiting plate 10, which connects the web of the steel beam 2 and the connecting segment 3 at the same time, so that the limiting plate 10 forms a clamping limiting state or a reinforced connection state.

[0037] Among them, the limiting plate 10 is arranged at the front end of the connecting segment 3 and located at the middle of the vertical web of the connecting segment 3 through bolts, and one is arranged on each side of the web, so that the two limiting plates 10 are horizontal with the web of the connecting segment 3, and the front end of the limiting plate 10 extends outward along the horizontal direction to the outside of the connecting segment 3, and the end of the steel beam 2 is inserted into the position between the two limiting plates 10, so that the limiting plate 10 forms a clamping limiting to the steel beam 2 in the horizontal direction. By arranging the limiting plate 10, the steel beam 2 can be quickly positioned to shorten the construction time, and the clamping limiting method has the advantages of simplicity, accuracy and high efficiency; and after forming the clamping positioning, the limiting plate 10 is connected with the steel beam 2 by bolts, which can further strengthen the stability of the buffer unloading structure.

[0038] As Figure 1 shown, it should be noted that two buffer unloading structures are arranged, and the two buffer unloading structures are arranged on the upper and lower flanges at the connecting position of the connecting segment 3 and the steel beam 2. The buffer unloading structures are arranged in the upward and downward directions, and the buffer unloading structure at the lower side can also support the steel beam 2, which can better improve the structural strength and safety.

[0039] As Figure 1 shown, specifically, the connecting segment 3 is provided with a reinforcing rib which is perpendicular to the steel column 1 to improve the ductility of the connecting segment 3. The reinforcing rib includes a horizontal reinforcing rib 8 and a vertical reinforcing rib 7, the horizontal reinforcing rib 8 is arranged between the web of the connecting segment 3 and the steel column 1, and the vertical reinforcing rib 7 is arranged between the flange of the connecting segment 3 and the steel column 1.

[0040] In this embodiment, based on the principle of plastic hinge migration at the connecting position of the connecting segment 3 and the steel column 1, reinforcing ribs are added at the beam-column connection to improve the ductility of the composite structure and improve the seismic performance of the structure. The vertical reinforcing rib 7 is arranged at the top and bottom of the connecting segment 3, and the horizontal reinforcing rib 8 is arranged at both sides of the connecting segment 3 in the horizontal direction. This embodiment is provided with twelve reinforcing ribs, six of which are horizontal reinforcing ribs 8 and six of which are vertical reinforcing ribs 7. Among the vertical reinforcing ribs 7, three are uniformly distributed on the top surface of the connecting segment 3, and three are uniformly distributed on the bottom surface of the connecting segment 3; and the horizontal reinforcing rib 8 is also three in a group, which are uniformly distributed on both sides of the connecting segment 3 in the horizontal direction, and three are arranged on one side.

[0041] As Figure 1As shown, specifically, the reinforcing plate 9 is arranged between the profile steel column 1 and the wing plate side, and the reinforcing plate 9 is arranged in the horizontal direction of the wing plate position of the connecting segment 3.

[0042] In the embodiment, the reinforcing plate 9 is arranged horizontally on both sides of the profile steel column 1 in the horizontal direction, and is located in the range of the horizontal extension of the top surface and / or bottom surface (the top surface and the bottom surface respectively represent the upper and lower wing plates of the connecting segment 3) of the connecting segment 3. The reinforcing plate 9 is arranged here, and the purpose is to avoid the connecting segment 3 with the steel beam 2 to the profile steel column 1 to generate tensile stress and shear stress, and to avoid the influence on the structural strength or ductility of the profile steel column 1, and to avoid the fracture of the profile steel column 1.

[0043] Please refer to Figures 1-8 When the profile steel column 1 is connected with the connecting segment 3 and the steel beam 2 through the beam-column composite frame, the specific mode is as follows:

[0044] The corrugations of the connecting corrugated plate 4 are welded in the longitudinal direction on the connecting back plate 13 in advance, the segment corrugated plate 5 is welded in the longitudinal direction with the wing plate of the connecting segment 3, and the beam corrugated plate 6 is welded in the longitudinal direction with the wing plate of the steel beam 2.

[0045] At the same time, the limiting plate 10 is matched to position and connect the steel beam 2, so that the connecting segment 3 and the steel beam 2 are connected in advance. The beam corrugated plate 6 and the segment corrugated plate 5 are connected to form a continuous corrugated plate, so that the beam corrugated plate 6 and the segment corrugated plate 5 are embedded with the connecting corrugated plate 4, the connecting piece 11 is punched on the connecting back plate 13 to connect the connecting segment 3 and the steel beam 2, and the connecting back plate 13 and the wing plate form a closed pouring space through the closing plate 16, and the closing plate 16 is sealed by the felt pad at the matched position.

[0046] Secondly, the pouring material is poured into the pouring pipe 12, so that the pouring material fills the corrugated cavity, so that the pouring material can pass through all the corrugated cavities and the matched surfaces between the connecting corrugated plate 4 and the segment corrugated plate 5 and the beam corrugated plate 6, and form a firm connection, so that the pouring material between the adjacent corrugated cavities is connected to form a whole, so as to complete the connection between the connecting segment 3 and the steel beam 2, and the ductility and shear resistance of the connecting position are effectively improved.

[0047] The above embodiment is only one of the preferred technical solutions of the present application, and those skilled in the art should understand that the technical solutions or parameters in the embodiment can be modified or replaced without departing from the principles and essence of the present application, and all should be covered within the protection scope of the present application.

Claims

1. A beam-column composite frame with a wave-shaped connection node, wherein a connecting segment (3) is provided on a steel column (1) and connected to the end of a steel beam (2), and a buffer unloading structure is provided in the connection area between the steel beam (2) and the connecting segment (3); characterized in that: The buffer unloading structure includes a segment corrugated plate (5) connected to the wing plate of the connecting segment (3) and a beam corrugated plate (6) connected to the wing plate of the steel beam (2). The segment corrugated plate (5) and the beam corrugated plate (6) form a continuous corrugated segment. A connecting corrugated plate (4) that matches the corrugation is fitted on the outer surface of the corrugated segment. A connecting back plate (13) is connected to the connecting corrugated plate (4). The connecting back plate (13) covers the connecting corrugated plate (4) and the wing plate where the corrugated section is located, and is sealed. Corrugated cavities are formed in the connecting corrugated plate (4) and the corrugated section. At the same time, through grooves (14) are opened on the walls of each level of the corrugated cavity so that the filling layer set in each level of the corrugated cavity forms an integral structure. The connecting back plate (13) is provided with a connector (11) that passes through the filling layer and connects to the steel beam (2) and the connecting segment (3). At the same time, the connector (11) is connected to the connecting corrugated plate (4) and the corrugated part of the corrugated segment.

2. The beam-column composite frame with a waveform connection node according to claim 1, characterized in that: The connecting back plate (13) is provided with a sealing plate (16) on the lateral side end face, and the sealing plate (16) is connected to the lateral side end face of the segmental corrugated plate (5) and the beam corrugated plate (6).

3. The beam-column composite frame with a waveform connection node according to claim 1, characterized in that: A casting pipe (12) is provided on the connecting back plate (13), and one end of the casting pipe (12) is connected to the corrugated cavity.

4. A beam-column composite frame with a waveform connection node according to claim 3, characterized in that: The connecting back plate (13) is also provided with a discharge pipe (15) that connects the corrugated cavity to the outside. The discharge pipe (15) can cooperate with the casting pipe (12) to form a pressure balance state.

5. A beam-column composite frame with a waveform connection node according to claim 1, characterized in that: A limiting plate (10) is provided in the connection area between the steel beam (2) and the connecting segment (3). The limiting plate (10) connects the web of the steel beam (2) and the connecting segment (3) to form a clamping limiting state or a reinforced connection state.

6. A beam-column composite frame with a waveform connection node according to claim 1, characterized in that: The connecting segment (3) is provided with reinforcing ribs that are perpendicularly connected to the steel column (1).

7. A beam-column composite frame with a waveform connection node according to claim 6, characterized in that: The reinforcing ribs include horizontal reinforcing ribs (8) and vertical reinforcing ribs (7). The horizontal reinforcing ribs (8) are disposed between the web of the connecting segment (3) and the steel column (1), and the vertical reinforcing ribs (7) are disposed between the flange of the connecting segment (3) and the steel column (1).

8. A beam-column composite frame with a waveform connection node according to claim 1, characterized in that: A reinforcing plate (9) is provided between the steel column (1) and the wing plate, and the reinforcing plate (9) is located in the horizontal direction of the wing plate position of the connecting segment (3).

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