Connecting structure of steel column and concrete beam

Abstract

The utility model discloses a connecting structure of a steel column and a concrete beam, and mainly relates to the technical field of building structures. Comprising a connecting structure arranged between a concrete beam and a steel column, and the concrete beam comprises a plurality of upper longitudinal bars, lower longitudinal bars, left longitudinal bars, right longitudinal bars and a plurality of stirrups arranged on the outer sides of the upper longitudinal bars, the lower longitudinal bars, the left longitudinal bars and the right longitudinal bars in a sleeving mode. The connecting structure comprises an upper connecting plate and a lower connecting plate which are respectively connected with the upper longitudinal bar and the lower longitudinal bar, and a left connecting plate and a right connecting plate which are connected with the left longitudinal bar and the right longitudinal bar; a first web plate is arranged between the upper connecting plate and the lower connecting plate, and a plurality of studs are arranged on the first web plate; and the upper connecting plate and the lower connecting plate are respectively provided with a plurality of exhaust holes. The connecting structure has the advantages that the problem that the concrete beam end and the steel column are inconvenient to connect is solved, and the shock resistance of the concrete beam is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a connection structure of a steel column and a concrete beam. Background Art

[0002] In the underground beam-slab structure of steel-structured residential buildings, there are often beam-column nodes where concrete beams are connected to steel columns. In order to effectively transfer the bending moment and shear force at the beam end, a short steel beam is generally set at the end of the concrete beam to connect with the steel column, and the longitudinal reinforcement of the concrete beam is welded to the upper and lower flanges of the short steel beam to achieve the transfer of bending moment. Studs are set on the web of the short steel beam, and the stirrups of the concrete beam section are also continuously arranged to the range of the short steel beam. Through the combined action of the stirrups and studs, the shear force of the concrete beam section is transferred to the short steel beam, and then transferred from the web of the short steel beam to the steel column.

[0003] The connection between the concrete beam and the steel column is achieved through the above steps. Although the force transmission is reliable, there are difficulties in pouring concrete on both sides of the web of the steel short beam and it is easy to cause loose vibration. In addition, since the pressure on the beam end is still mainly borne by the concrete, if the concrete beam ends are not poured completely, when subjected to strong external force, the concrete at the beam end will first be damaged by compression, and the ductile damage required for earthquake resistance and the consumption of earthquake energy cannot be effectively achieved. Utility Model Content

[0004] The utility model aims to provide a connection structure between a steel column and a concrete beam, so as to solve the problem of inconvenient connection between the concrete beam end and the steel column and improve the earthquake resistance of the concrete beam.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A connection structure between a steel column and a concrete beam, including a connection structure arranged between the concrete beam and the steel column, the concrete beam including a plurality of upper longitudinal bars, lower longitudinal bars, left longitudinal bars and right longitudinal bars, and a plurality of stirrups sleeved on the outer sides of the upper longitudinal bars, lower longitudinal bars, left longitudinal bars and right longitudinal bars, the connection structure including an upper connecting plate and a lower connecting plate respectively connected to the upper longitudinal bars and the lower longitudinal bars, and a left connecting plate and a right connecting plate connected to the left longitudinal bars and the right longitudinal bars; a first web is arranged between the upper connecting plate and the lower connecting plate, and a plurality of bolts are arranged on the first web; the upper connecting plate and the lower connecting plate are respectively provided with a plurality of exhaust holes.

[0007] Furthermore, the steel column is provided with a notch, and a wall panel is detachably connected to the notch, and the upper connecting plate, the lower connecting plate, the left connecting plate, the right connecting plate and the first web are all arranged on the wall panel.

[0008] Furthermore, an upper reinforcing plate and a lower reinforcing plate connected to the wall panel are provided in the steel column, and the upper reinforcing plate and the lower reinforcing plate are flush with the upper connecting plate and the lower connecting plate respectively.

[0009] Furthermore, a second web and a third web connected to the steel column and the wall plate are respectively provided between the two upper reinforcing plates and the lower reinforcing plate, and the first web is flush with the second web.

[0010] Furthermore, flange plates are provided on both sides of the notch, and a plurality of through holes are provided on the wall plate and the flange plate respectively. Both ends of the bolt pass through the through holes on the wall plate and the flange plate respectively and are threadedly connected with nuts.

[0011] Furthermore, the length of the first web is greater than the height of the concrete beam, and the upper and lower sides of the first web are respectively provided with raised parts connected to the upper connecting plate and the lower connecting plate, and the raised parts and the first web are provided with first ribs.

[0012] Furthermore, second ribs are provided between the left connecting plate, the right connecting plate and the wall plate respectively.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. Pre-arrange the upper connecting plate, lower connecting plate, left connecting plate and right connecting plate at the predetermined position of the steel column, and at the same time, arrange the first web plate welded with studs between the upper connecting plate and the lower connecting plate, respectively connect the upper longitudinal reinforcement and the lower longitudinal reinforcement through the upper connecting plate and the lower connecting plate, and respectively connect the left longitudinal reinforcement and the right longitudinal reinforcement to the left connecting plate and the right connecting plate, so as to transfer the shear force and bending moment of the concrete beam to the steel column, further improve the stability between the concrete beam and the steel column, and improve the seismic resistance of the concrete beam;

[0015] 2. The assembly of the studs and the first web forms a certain distance of intersection length with the concrete beam, thereby taking on the shear force and bending moment transmitted by the concrete beam, further improving the stability between the concrete beam and the steel column, and improving the seismic resistance of the concrete beam;

[0016] 3. Place partitions to cast concrete beams. Since the upper and lower connecting plates are provided with exhaust holes, the bubbles generated during concrete pouring can be discharged in time to ensure the density of concrete on both sides of the first web and avoid loose vibration at both ends of the concrete beam, which leads to easy damage to the beam ends under pressure and fails to achieve the ductile damage required for earthquake resistance and consumption of earthquake energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a structural schematic diagram of the cooperation of the concrete beam and the steel column of the utility model.

[0018] Attached Figure 2It is a schematic diagram of the structure inside the concrete beam and steel column of the utility model.

[0019] Attached Figure 3 It is a structural schematic diagram of the bolt of the utility model.

[0020] Attached Figure 4 It is a structural schematic diagram of the wall panel of the utility model.

[0021] Attached Figure 5 It is a structural schematic diagram of the second web of the utility model.

[0022] Numbers shown in the accompanying drawings:

[0023] 1. Concrete beam; 2. Steel column; 3. Connection structure; 4. Upper longitudinal reinforcement; 5. Lower longitudinal reinforcement; 6. Left longitudinal reinforcement; 7. Right longitudinal reinforcement; 8. Stirrups; 9. Upper connecting plate; 10. Lower connecting plate; 11. Left connecting plate; 12. Right connecting plate; 13. First web; 14. Bolts; 15. Vent hole;

[0024] 16. Notch; 17. Wall plate; 18. Upper reinforcing plate; 19. Lower reinforcing plate; 20. Second web plate; 21. Third web plate; 22. Flange plate; 23. Bolts; 24. Nuts; 25. Raised portion; 26. First rib plate; 27. Second rib plate. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0026] A connection structure between a steel column and a concrete beam, such as Figure 1 , Figure 2 and Figure 3As shown, it includes a connecting structure 3 arranged between a concrete beam 1 and a steel column 2, which is used to connect the concrete beam 1 and the steel column 2, and transfer the force applied to the concrete beam 1 to the steel column 2 through the connecting structure 3, thereby improving the earthquake resistance of the concrete beam 1; the concrete beam 1 includes a plurality of upper longitudinal bars 4, lower longitudinal bars 5, left longitudinal bars 6 and right longitudinal bars 7, and a plurality of stirrups 8 sleeved on the outer sides of the upper longitudinal bars 4, the lower longitudinal bars 5, the left longitudinal bars 6 and the right longitudinal bars 7, to ensure the stability of the overall structure of the concrete beam 1 and improve the earthquake resistance of the concrete beam 1; the connecting structure The connection structure 3 includes an upper connection plate 9 and a lower connection plate 10 respectively connected to the upper longitudinal reinforcement 4 and the lower longitudinal reinforcement 5, and a left connection plate 11 and a right connection plate 12 connected to the left longitudinal reinforcement 6 and the right longitudinal reinforcement 7. The upper connection plate 9 and the lower connection plate 10 are respectively connected to the upper longitudinal reinforcement 4 and the lower longitudinal reinforcement 5, and the left longitudinal reinforcement 6 and the right longitudinal reinforcement 7 are respectively connected to the left connection plate 11 and the right connection plate 12, so that the shear force and bending moment of the concrete beam 1 are transmitted to the steel column 2, so as to further improve the stability between the concrete beam 1 and the steel column 2 and improve the earthquake resistance of the concrete beam 1;

[0027] A first web 13 is provided between the upper connecting plate 9 and the lower connecting plate 10, and a plurality of studs 14 are provided on the first web 13. Specifically, the plurality of studs 14 are welded to the first web 13, so that the assembly of the studs 14 and the first web 13 forms a certain distance of intersection length with the concrete beam 1, thereby bearing the shear force and bending moment transmitted by the concrete beam 1, further improving the stability between the concrete beam 1 and the steel column 2, and improving the seismic resistance of the concrete beam 1;

[0028] The upper connecting plate 9 and the lower connecting plate 10 are respectively provided with a plurality of exhaust holes 15, so that bubbles generated during concrete pouring can be discharged in time, thereby ensuring the density of concrete on both sides of the first web 13, and avoiding the two ends of the concrete beam 1 from being vibrated loosely, resulting in the beam ends being easily damaged under pressure, and failing to achieve the ductile failure required for earthquake resistance and the consumption of earthquake energy.

[0029] Preferably, Figure 2 , Figure 3 , Figure 4As shown, the steel column 2 is provided with a notch 16, and the notch 16 is convenient for welding the upper reinforcing plate 18 and the lower reinforcing plate 19 in the steel column 2, thereby improving the efficiency of welding the upper reinforcing plate 18 and the lower reinforcing plate 19; the notch 16 is detachably connected with a wall plate 17, and the upper connecting plate 9, the lower connecting plate 10, the left connecting plate 11, the right connecting plate 12 and the first web 13 are all arranged on the wall plate 17, so that the upper connecting plate 9, the lower connecting plate 10, the left connecting plate 11, the right connecting plate 12 and the first web 13 can be prefabricated on the wall plate 17 in advance, without welding the upper connecting plate 9, The lower connecting plate 10, the left connecting plate 11, the right connecting plate 12 and the first web 13, thereby improving the efficiency of setting the connecting structure 3 on the steel column 2; in addition, after the connecting structure 3 is set on the wall panel 17, the distance between the steel columns 2 can be measured in advance, and the corresponding number of stirrups 8 can be sleeved on the outside of the upper longitudinal reinforcement 4, the lower longitudinal reinforcement 5, the left longitudinal reinforcement 6 and the right longitudinal reinforcement 7, and then welded to the corresponding upper connecting plate 9, the lower connecting plate 10, the left connecting plate 11, and the right connection, without connecting the steel structure of the concrete beam 1 to the connecting structure 3 at a high place, thereby improving the efficiency of the connection between the concrete beam 1 and the connecting structure 3.

[0030] Preferably, Figure 2 and Figure 4 As shown, the steel column 2 is provided with an upper reinforcing plate 18 and a lower reinforcing plate 19 connected to the wall panel 17. The upper reinforcing plate 18 and the lower reinforcing plate 19 are flush with the upper connecting plate 9 and the lower connecting plate 10 respectively, thereby improving the bearing capacity of the steel column 2, taking on the stress transmitted to the steel column 2 by the upper connecting plate 9 and the lower connecting plate 10, and further improving the seismic resistance of the steel column 2 and concrete.

[0031] Preferably, Figure 3 , Figure 4 and Figure 5 As shown, a second web 20 and a third web 21 connected to the steel column 2 and the wall panel 17 are respectively provided between the two upper reinforcing plates 18 and the lower reinforcing plate 19, and the first web 13 is flush with the second web 20, thereby improving the bearing capacity of the steel column 2, taking on the stress transmitted to the steel column 2 by the first web 13, and further improving the seismic resistance of the steel column 2 and concrete.

[0032] Preferably, Figure 2 , Figure 3 and Figure 4As shown, flange plates 22 are respectively provided on both sides of the notch 16 for strengthening the bearing strength of the notch 16 of the steel column 2. A plurality of through holes are respectively provided on the wall panel 17 and the flange plate 22. Both ends of the bolt 23 respectively pass through the through holes on the wall panel 17 and the flange plate 22 and are threadedly connected with the nut 24, so that the wall panel 17 can be detachably arranged on the steel column 2, which is convenient for the later adjustment of the connection structure 3. After the adjustment is completed, the flange plate 22, the wall panel 17 and the steel column 2 are integrally welded to further strengthen the strength between the connection structure 3 and the steel column 2, thereby improving the seismic resistance of the steel column 2 and the concrete beam 1.

[0033] Preferably, Figure 2 and Figure 4 As shown, the length of the first web 13 is greater than the height of the concrete beam 1, ensuring that the first web 13 can bear the shear force and bending moment of the concrete beam 1, thereby improving the seismic resistance of the concrete beam 1; the upper and lower sides of the first web 13 are respectively provided with raised portions 25 connected to the upper connecting plate 9 and the lower connecting plate 10, thereby strengthening the bearing strength of the upper connecting plate 9 and the lower connecting plate 10; the raised portions 25 and the first web 13 are provided with first ribs 26, which are used to strengthen the bearing strength of the first web 13 and improve the seismic resistance of the concrete beam 1.

[0034] Preferably, Figure 5 As shown, second ribs 27 are provided between the left connecting plate 11 , the right connecting plate 12 and the wall plate 17 , respectively, for strengthening the bearing strength and improving the earthquake resistance of the concrete beam 1 .

[0035] Example 1

[0036] The utility model provides a connection structure between a steel column and a concrete beam, such as Figure 1 , Figure 2 and Figure 3 As shown, an upper connecting plate 9, a lower connecting plate 10, a left connecting plate 11 and a right connecting plate 12 are pre-arranged at a predetermined position of the steel column 2, and a first web 13 welded with a bolt 14 is arranged between the upper connecting plate 9 and the lower connecting plate 10, and the upper connecting plate 9 and the lower connecting plate 10 are respectively connected to the upper longitudinal reinforcement 4 and the lower longitudinal reinforcement 5, and the left longitudinal reinforcement 6 and the right longitudinal reinforcement 7 are respectively connected to the left connecting plate 11 and the right connecting plate 12, so that the shear force and bending moment of the concrete beam 1 are transmitted to the steel column 2, so as to further improve the stability between the concrete beam 1 and the steel column 2, and improve the seismic resistance of the concrete beam 1; then, a partition is placed to cast the concrete beam 1, and since the upper connecting plate 9 and the lower connecting plate 10 are provided with exhaust holes 15, the bubbles generated during the concrete casting can be discharged in time, so as to ensure the density of the concrete on both sides of the first web 13, and avoid the concrete beam 1 The two ends are not vibrated densely, resulting in the beam end being easily damaged under pressure, and the ductile damage required for seismic resistance and the consumption of earthquake energy cannot be achieved;

[0037] In addition, the assembly of the studs 14 and the first web 13 forms a certain distance of intersection length with the concrete beam 1, thereby taking on the shear force and bending moment transmitted by the concrete beam 1, further improving the stability between the concrete beam 1 and the steel column 2, and improving the seismic resistance of the concrete beam 1.

[0038] Example 2

[0039] Based on Example 1, Figure 1-Figure 5 As shown, a notch 16 is pre-set at a predetermined position of the steel column 2, and two flange plates 22 are welded to both sides of the steel column 2 to strengthen the bearing strength of the notch 16 of the steel column 2. Then, the second web 20 and the third web 21 are pre-welded between the upper reinforcing plate 18 and the lower reinforcing plate 19. Through the notch 16 on the steel column 2, it is convenient to weld the upper reinforcing plate 18, the lower reinforcing plate 19, the second web 20 and the third web 21 in the steel column 2, thereby improving the efficiency of welding the upper reinforcing plate 18, the lower reinforcing plate 19, the second web 20 and the third web 21.

[0040] Place the wall plate 17 at the notch 16 so that the through hole on the wall plate 17 corresponds to the through hole on the flange plate 22, and then draw lines on the wall plate 17 according to the positions of the upper reinforcing plate 18, the lower reinforcing plate 19 and the second web plate 20, so that the upper reinforcing plate 18 and the lower reinforcing plate 19 are flush with the upper connecting plate 9 and the lower connecting plate 10 respectively, thereby improving the bearing capacity of the steel column 2, taking on the stress transmitted to the steel column 2 by the upper connecting plate 9 and the lower connecting plate 10, and further improving the seismic resistance of the steel column 2 and the concrete; at the same time, the first web plate 13 is flush with the second web plate 20, thereby improving the bearing capacity of the steel column 2, taking on the stress transmitted to the steel column 2 by the first web plate 13, and further improving the seismic resistance of the steel column 2 and the concrete;

[0041] After the lines are drawn, the wall panel 17 is removed, and the upper connecting plate 9, the lower connecting plate 10, the left connecting plate 11, the right connecting plate 12 and the first web 13 are prefabricated on the wall panel 17 in advance, and there is no need to weld the upper connecting plate 9, the lower connecting plate 10, the left connecting plate 11, the right connecting plate 12 and the first web 13 at a high place, thereby improving the efficiency of setting the connecting structure 3 on the steel column 2; after the connecting structure 3 is set on the wall panel 17, the distance between the steel columns 2 is measured in advance, and the corresponding number of stirrups 8 are set on the outer side of the upper longitudinal reinforcement 4, the lower longitudinal reinforcement 5, the left longitudinal reinforcement 6 and the right longitudinal reinforcement 7, and then welded with the corresponding upper connecting plate 9, the lower connecting plate 10, the left connecting plate 11, and the right connecting plate 7, and there is no need to connect the steel structure of the concrete beam 1 with the connecting structure 3 at a high place, thereby improving the efficiency of connecting the concrete beam 1 with the connecting structure 3;

[0042] Next, the wall panel 17 is placed at the notch 16 so that the through holes on the wall panel 17 and the notch 16 are connected. Then, the bolts 23 are respectively passed through the through holes on the wall panel 17 and the flange plate 22 and are threadedly connected with the nuts 24. By tightening the nuts 24, the wall panel 17 can be detachably set on the steel column 2, which is convenient for the subsequent position of the wall panel 17. Finally, the flange plate 22, the wall panel 17 and the steel column 2 are welded as a whole to further strengthen the strength between the connection structure 3 and the steel column 2, thereby improving the seismic resistance of the steel column 2 and the concrete beam 1.

[0043] Example 3

[0044] Based on Example 1, Figure 1-Figure 5 As shown, the length of the first web 13 is greater than the height of the concrete beam 1, ensuring the strength of the first web 13 in bearing the shear force and bending moment of the concrete beam 1, thereby improving the seismic resistance of the concrete beam 1; the upper and lower sides of the first web 13 are respectively provided with raised portions 25 connected to the upper connecting plate 9 and the lower connecting plate 10, thereby strengthening the bearing strength of the upper connecting plate 9 and the lower connecting plate 10; the raised portions 25 and the first web 13 are provided with first ribs 26, which are used to strengthen the bearing strength of the first web 13, thereby improving the seismic resistance of the concrete beam 1; second ribs 27 are respectively provided between the left connecting plate 11, the right connecting plate 12 and the wall plate 17, thereby strengthening the bearing strength, thereby improving the seismic resistance of the concrete beam 1.

Claims

1. A connection structure of a steel column and a concrete beam, comprising a connection structure (3) arranged between a concrete beam (1) and a steel column (2), wherein the concrete beam (1) comprises a plurality of upper longitudinal bars (4), lower longitudinal bars (5), left longitudinal bars (6) and right longitudinal bars (7), and a plurality of stirrups (8) sleeved on the outer sides of the upper longitudinal bars (4), lower longitudinal bars (5), left longitudinal bars (6) and right longitudinal bars (7), characterized in that: The connection structure (3) comprises an upper connection plate (9) and a lower connection plate (10) respectively connected to the upper longitudinal rib (4) and the lower longitudinal rib (5), and a left connection plate (11) and a right connection plate (12) respectively connected to the left longitudinal rib (6) and the right longitudinal rib (7); a first web (13) is provided between the upper connection plate (9) and the lower connection plate (10), and a plurality of bolts (14) are provided on the first web (13); and a plurality of exhaust holes (15) are respectively provided on the upper connection plate (9) and the lower connection plate (10).

2. The connection structure of a steel column and a concrete beam according to claim 1, characterized in that: The steel column (2) is provided with a notch (16), and a wall plate (17) is detachably connected to the notch (16); the upper connecting plate (9), the lower connecting plate (10), the left connecting plate (11), the right connecting plate (12) and the first web (13) are all arranged on the wall plate (17).

3. The connection structure of a steel column and a concrete beam according to claim 2, characterized in that: An upper reinforcing plate (18) and a lower reinforcing plate (19) connected to the wall plate (17) are provided in the steel column (2); the upper reinforcing plate (18) and the lower reinforcing plate (19) are respectively flush with the upper connecting plate (9) and the lower connecting plate (10).

4. The connection structure of a steel column and a concrete beam according to claim 3, characterized in that: A second web (20) and a third web (21) connected to the steel column (2) and the wall plate (17) are respectively provided between the two upper reinforcing plates (18) and the lower reinforcing plate (19), and the first web (13) is flush with the second web (20).

5. The connection structure of a steel column and a concrete beam according to claim 2, characterized in that: Flange plates (22) are respectively provided on both sides of the notch (16); the wall plate (17) and the flange plate (22) are respectively provided with a plurality of through holes, and also include bolts (23) and nuts (24); two ends of the bolts (23) respectively pass through the through holes on the wall plate (17) and the flange plate (22) and are then threadedly connected with the nuts (24).

6. The connection structure of a steel column and a concrete beam according to claim 1, characterized in that: The length of the first web (13) is greater than the height of the concrete beam (1), and the upper and lower sides of the first web (13) are respectively provided with raised portions (25) connected to the upper connecting plate (9) and the lower connecting plate (10), and the raised portions (25) and the first web (13) are provided with first ribs (26).

7. The connection structure of a steel column and a concrete beam according to claim 2, characterized in that: Second ribs (27) are respectively provided between the left connecting plate (11), the right connecting plate (12) and the wall plate (17).

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