Steel frame beam-column joint structure with improved resistance to progressive collapse performance

Abstract

The application relates to the technical field of steel frame beam-column joint, in particular to a steel frame beam-column joint structure with improved anti-continuous collapse performance, which comprises a supporting stand column, the two sides of the supporting stand column are both provided with mounting mechanisms, and the two sides of the supporting stand column are both sequentially provided with a plurality of steel structure supporting frames. The application is characterized in that the detachable connection between the adjacent two steel structure supporting frames and the detachable connection between the steel structure supporting frames and the supporting stand column can fully guarantee the connection firmness, and when collapse occurs, the range affected by the collapse can be reduced, the problem of continuous collapse can be avoided, the two steel structure supporting frames can be clamped and fixed through the supporting arc-shaped plates, the connection between the adjacent two steel structure supporting frames can be completed through the cooperation of the supporting arc-shaped plates and the supporting stand column, the connection firmness can be ensured, and the connection with the in-plane steel beam can be completed through the connecting threaded holes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel frame beam-column joint, and particularly relates to a steel frame beam-column joint structure with improved anti-continuous collapse performance. BACKGROUND

[0002] The existing steel structure beam-column joint is fixed by welding when fixed with the steel beam. Although the bearing capacity is large and the stability is strong, the plastic hinge is generated at the welding seam. Once the beam welding seam cracks, the bearing capacity will decrease sharply, which is extremely unfavorable for the structure anti-continuous collapse. Recently, many researchers have carried out various weakening methods to move the plastic hinge outward, thereby improving the anti-continuous collapse performance. For example, the dog bone type weakening measure of the beam flange makes the beam-column joint meet the seismic design requirements and the performance requirements of the anti-continuous collapse before cracking. The round hole type weakening measure of the beam web improves the ductility and anti-continuous collapse performance of the beam-column joint. However, the weakening type of the node ductility improvement measure often reduces the bearing capacity of the structure under large deformation, so that the failure point appears in advance, thereby leading to insufficient utilization of part of the material and waste of the bearing capacity of the beam component.

[0003] The steel frame beam-column joint structure with improved anti-continuous collapse performance disclosed in the application with the publication number CN220285019U includes a steel column, steel beams are horizontally welded on both sides of the steel column, the steel column and the steel beam are I-shaped steel, at least one beam connecting plate is arranged between the two leg portions on the left and right sides of the web of the end portion of the steel beam along the length direction of the steel beam, a stress device is arranged between the adjacent two beam connecting plates and the adjacent beam connecting plate and the corresponding leg portion plate of the steel column, and an opening is arranged between the adjacent two beam connecting plates and the adjacent beam connecting plate and the corresponding leg portion plate of the steel column in the middle portion of the web of the end portion of the steel beam. The application solves the problem of insufficient bearing capacity of the weakened section of the beam-column joint, and improves the ductility of the node by combining the measures of web section weakening and web reinforcement. The plastic hinge is moved outward, the ductility of the node is improved, the bearing capacity of the weakened section under large deformation is improved, and a secondary defense mechanism is formed to resist the continuous collapse of the structure.

[0004] In the above technical solution, a single cross beam is used as a base to support multiple cross beams on the plane. When the support cross beam loosens, it will still cause a large area of collapse, which cannot fully guarantee the stability of the steel frame beam column, so improvement is needed. SUMMARY

[0005] The present application relates to the technical field of steel frame beam-column joint, and particularly relates to a steel frame beam-column joint structure with improved anti-continuous collapse performance.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] The utility model provides a steel frame beam column joint structure of improved anti-continuous collapse performance, including support column, both sides of support column are equipped with mounting mechanism, both sides of support column are equipped with a plurality of steel structure support frame in proper order, two steel structure support frames located both sides of support column are connected with two mounting mechanisms at both ends of support column respectively,

[0008] The upper ends of the two adjacent steel structure support frames abut against an arc-shaped pressing plate, which is detachably connected with an arc-shaped support abutting plate assembly. The upper ends of the arc-shaped support abutting plate assembly are provided with a plurality of connecting threaded holes at both sides at equal intervals. The lower ends of the arc-shaped support abutting plate assembly are fixedly provided with support arc-shaped plates at both sides. The two support arc-shaped plates abut against the corresponding two steel structure support frames. The arc-shaped support abutting plate assembly is fixedly provided with a connecting partition plate. The connecting partition plate is provided with a screwing mechanism. The screwing mechanism is provided with a lifting plate and a synchronous connecting screw. The lifting plate is slidingly installed in the arc-shaped support abutting plate assembly. The lifting plate abuts against the arc-shaped pressing plate.

[0009] The two steel structure support frames are located at both sides of the connecting partition plate and are connected with the screwing mechanism.

[0010] Compared with the prior art, the utility model can reduce the range affected when collapse occurs and avoid the problem of continuous collapse by detachable connection between the two adjacent steel structure support frames and detachable connection between the steel structure support frame and the support column while ensuring the firmness of the connection. The two steel structure support frames can be clamped and fixed by the arc-shaped pressing plate and the support arc-shaped plate. The connection between the two adjacent steel structure support frames can be completed by the arc-shaped pressing plate and the support arc-shaped plate, and the firmness of the connection can be ensured. The connection with the in-plane steel beam can be completed through the connecting threaded holes.

[0011] Preferably, the upper end of the steel structure support frame is provided with a limiting slot, which is located at the lower end of the arc-shaped pressing plate. The arc-shaped pressing plate is fixedly provided with a limiting plug, which extends into the limiting slot.

[0012] Further, the relative position relationship between the steel structure support frame and the arc-shaped pressing plate can be fully limited by the limiting plug and the limiting slot, so as to cooperate with the screwing mechanism to move the two steel structure support frames relative to each other and improve the connection relationship between the two steel structure support frames and the connecting partition plate.

[0013] Preferably, the arc-shaped pressing plate member is provided with an opening on both sides, the two ends of the arc-shaped support and contact plate assembly extend to the two openings respectively, the two ends of the arc-shaped support and contact plate assembly are fixed with support fixing plates, the support fixing plates are located at the lower end of the arc-shaped pressing plate member, an adjusting screw member is provided through the support fixing plate, the arc-shaped pressing plate member is provided with an adjusting screw hole on both sides, the two adjusting screw members are screwed into the two adjusting screw holes respectively, the upper end of the adjusting screw member is screwed with a limiting nut member, and the limiting nut member and the upper end of the arc-shaped pressing plate member are in contact.

[0014] Further, through the cooperation of the opening and the arc-shaped support and contact plate assembly, the preliminary connection of the arc-shaped pressing plate member and the arc-shaped support and contact plate assembly can be completed, so that the adjusting screw member and the adjusting screw hole are connected, and at the same time, the arc-shaped pressing plate member can be moved towards the arc-shaped support and contact plate assembly through screwing, so as to control the extrusion of the arc-shaped pressing plate member on the pressing rod member. Through the cooperation of the pressing rod member and the corresponding parts, the connection of the screw member and the steel structure support frame can be realized.

[0015] Preferably, the two ends of the arc-shaped support and contact plate assembly are fixed with contact top plates, and the two contact top plates are arranged at the upper end of the two adjusting screw members respectively.

[0016] Further, in actual preparation, the arc-shaped support and contact plate assembly, the support fixing plate and the contact top plate are integrally formed, which can effectively improve the connection strength, and the reinforcing plates are arranged between the support fixing plate and the arc-shaped support and contact plate assembly and between the contact top plate and the arc-shaped support and contact plate assembly, so as to improve the connection strength, and the connection partition plate member and the arc-shaped support and contact plate assembly are integrally formed.

[0017] Preferably, the screwing mechanism comprises a mounting cavity arranged in the connection partition plate member, a through hole is arranged on one side of the upper end in the mounting cavity, the through hole corresponds to the arc-shaped support and contact plate assembly, a sliding member is slidingly installed at the bottom of the mounting cavity, an inclined push rod member is rotatably connected to the upper end of the sliding member, the synchronous connection screw member extends to both sides of the connection partition plate member through the mounting cavity, the two ends of the synchronous connection screw member extend to the two ends of the connection partition plate member respectively, a through hole is arranged on one side of the synchronous connection screw member in the mounting cavity, the upper end of the inclined push rod member extends into the through hole, a inclined rod is rotatably connected to the upper end of the sliding member, the upper end of the inclined rod is rotatably connected to a lifting plate, and one end of the lifting plate extends into the mounting cavity.

[0018] Furthermore, the lifting plate can be lowered through the interference between the pressure rod and the arc-shaped pressure plate, and the lifting plate can move the sliding member through the inclined rod. The movement of the sliding member can cause the inclined push rod to push the synchronous connecting screw member to rotate. As the sliding member moves, the inclined push rod can gradually rotate toward a vertical position, which can cause the synchronous connecting screw member to rotate. When setting, the threaded engagement at both ends of the synchronous connecting screw member corresponds to the threads in the two connecting screw holes respectively. This can enable the connecting screw holes on the two steel structure support frames and the synchronous connecting screw member to be connected when the synchronous connecting screw member rotates, so that the two steel structure support frames can move toward the direction of the connecting partition member. At the same time, during actual preparation, both ends of the synchronous connecting screw member are hemispherically set, which is convenient for quick connection with the connecting screw holes.

[0019] Preferably, an I-shaped guide rail is fixed to the bottom of the installation cavity, and the sliding member is slidably installed on the I-shaped guide rail.

[0020] Furthermore, the stability of the movement of the sliding member is ensured by the action of the sliding member and the I-shaped guide rail.

[0021] Preferably, an opening is provided on one side of the arc-shaped support and contact plate assembly, the opening and the through-hole are arranged in a through-connected manner, the lifting plate is arranged through the opening and the through-hole, the lifting plate is slidably installed in the opening, and a pressure rod is fixed on one end of the lifting plate extending out of the arc-shaped support and contact plate assembly.

[0022] Furthermore, during actual production and preparation, two slide rod components are fixed in the opening, and the two slide rod components can fully ensure the stability of the lifting plate and the pressure rod component during lifting.

[0023] Preferably, connecting screw holes are provided at opposite ends of the two steel structure support frames, and both ends of the synchronous connecting screw member are respectively threadedly sleeved in the two connecting screw holes.

[0024] Furthermore, by cooperating with the connecting screw holes and the synchronously connecting screw members, the internal connection can be completed, and the firmness of the connection can be fully improved.

[0025] Preferably, the arc-shaped supporting and contacting plate assembly and the two supporting and fixing plates are integrally formed.

[0026] Furthermore, the firmness of the connection is fully improved.

[0027] Preferably, the mounting mechanism includes two supporting transverse shafts fixed on both sides of the supporting column, the upper ends of the two supporting transverse shafts are provided with limit plates, the two limit plates are fixedly connected to the supporting columns, the supporting transverse shafts are screwed to the steel structure support frame, and four connecting bolts are provided on both sides of the supporting column, and the four connecting bolts on the same side are respectively threadedly sleeved on both ends of the steel structure support frame;

[0028] The limiting plate extends into the limiting groove at the upper end of the steel structure support frame.

[0029] Furthermore, the limiting plate can fully realize the limitation of the steel structure support frame, and the supporting horizontal axis can effectively limit the steel structure support frame and fully support the steel structure support frame;

[0030] Moreover, the connection firmness between the steel structure support frame and the support column can be improved by connecting the bolts.

[0031] The beneficial effects of the present invention are:

[0032] 1. The supporting cross-axis can be connected and fixed to the supporting column by welding, and a longer supporting cross-axis can also be provided to penetrate the supporting column, so that one supporting cross-axis can be connected and fixed to the two steel structure support frames on both sides of the supporting column. At the same time, the two steel structure support frames can be prevented from rotating by the limit plate, and the steel structure support frames and the supporting column are connected and fixed by the action of four connecting bolts;

[0033] 2. The arc-shaped support contact plate assembly and the two supporting arc plates can support two adjacent steel structure support frames, and multiple connecting threaded holes are set on both sides of the arc-shaped support contact plate assembly to connect and fix the flat support steel frame with it. At the same time, when collapse occurs, the two adjacent steel structure support frames will be separated, reducing their impact on other supporting columns and fully controlling their collapse range;

[0034] 3. The relative position relationship between the steel structure support frame and the arc-shaped pressure plate can be fully limited by the cooperation of the limiting plug-in member and the limiting groove, so that the two steel structure support frames can be relatively moved by cooperating with the screw mechanism, thereby improving the connection relationship between the two steel structure support frames and the connecting partition member; the initial connection between the arc-shaped pressure plate member and the arc-shaped support contact plate assembly can be completed by cooperating with the notch and the arc-shaped support contact plate assembly, so that the adjusting screw member and the adjusting screw hole can be connected, and at the same time, the arc-shaped pressure plate member can be moved toward the arc-shaped support contact plate assembly by screwing, so as to control the arc-shaped pressure plate member to squeeze the pressure rod member, and then the pressure rod member and the corresponding components can be used to achieve the connection of the synchronous connection screw member and the steel structure support frame;

[0035] 4. In actual preparation, the arc-shaped support and contact plate assembly, the support fixing plate and the contact top plate are integrally formed, which can effectively improve the connection strength. Reinforcement plates are provided between the support fixing plate and the arc-shaped support and contact plate assembly, and between the contact top plate and the arc-shaped support and contact plate assembly to improve the connection strength. The connecting partition member and the arc-shaped support and contact plate assembly are integrally formed.

[0036] 5. The lifting plate can be lowered by the interference between the pressure rod and the arc-shaped pressure plate, and the lifting plate can move the sliding member through the oblique rod. The movement of the sliding member can cause the oblique push rod to push the synchronous connecting screw member to rotate. As the sliding member moves, the oblique push rod can gradually rotate toward the vertical position, which can cause the synchronous connecting screw member to rotate. When setting, the threaded engagement at both ends of the synchronous connecting screw member corresponds to the threads in the two connecting screw holes respectively. This can enable the connecting screw holes on the two steel structure support frames and the synchronous connecting screw member to be connected when the synchronous connecting screw member rotates, so that the two steel structure support frames can move toward the direction of the connecting partition member. At the same time, during actual preparation, both ends of the synchronous connecting screw member are hemispherically set, which is convenient for quick connection with the connecting screw holes;

[0037] 6. During actual production and preparation, two sliding rod components are fixed in the opening. At the same time, the two sliding rod components can fully ensure the stability of the lifting plate and the pressure rod. Through the cooperation of the connecting screw holes and the synchronous connecting screw parts, the internal connection can be completed, and the firmness of the connection can be fully improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural diagram of the present invention;

[0039] Figure 2 An internal diagram of the arc-shaped support and contact plate assembly and the support and fixing plate of the present invention;

[0040] Figure 3 A structural diagram of the arc-shaped support and contact plate assembly and the support and fixing plate in the present invention;

[0041] Figure 4 This is a structural diagram of the arc-shaped pressing plate member in the present invention;

[0042] Figure 5 A diagram showing the connection structure of the partition member and the arc-shaped support and contact plate assembly in the present invention;

[0043] Figure 6 The present invention is attached Figure 2 A magnified view of point A;

[0044] Figure 7 The present invention is attached Figure 2 Enlarged view of point B;

[0045] In the figure: 1 arc-shaped support and contact plate assembly, 2 support fixing plate, 3 contact top plate, 4 arc-shaped pressure plate, 5 limit plug-in, 6 limit slot, 7 steel structure support frame, 8 adjustment screw, 9 limit nut, 10 through hole, 11 connecting partition, 12 synchronous connection screw, 13 installation cavity, 14 connecting screw hole, 15 adjustment screw hole, 16 notch, 17 oblique push rod, 18 lifting plate, 19 opening, 20 through hole, 21 oblique rod, 22 sliding member, 23 pressure rod, 24 support arc plate, 25 support column, 26 connecting bolt, 27 support horizontal axis, 28 limit plate, 29 connecting threaded hole. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0047] Reference Figures 1-7 , a steel frame beam-column node structure with improved anti-continuous collapse performance, including a support column 25, characterized in that: both sides of the support column 25 are provided with mounting mechanisms, and both sides of the support column 25 are sequentially provided with multiple steel structure support frames 7. During actual production and preparation, the steel structure support frames 7 can be set to corresponding shapes as needed. When the shapes of the steel structure support frames 7 are different, the corresponding components will also be adjusted synchronously. For example, the structures of the arc-shaped support contact plate assembly 1, the support arc plate 24, and the arc pressure plate member 4 are also adjusted to ensure that they can effectively contact the steel structure support frames 7. The two steel structure support frames 7 located on both sides of the support column 25 are respectively connected to the two mounting mechanisms at both ends of the support column 25; the mounting mechanism can make the two steel structure support frames 7 on both sides of the support column 25 fully connected and fixed to the support column 25, and during actual production and preparation, the support column 25 can be connected and fixed to the support cross shaft 27 by welding, or a longer support cross shaft 27 can be set to ensure that the support cross shaft 27 can be fixed to the support column 25.

[0048] Reference Figures 1-7The mounting mechanism includes two supporting transverse shafts 27 fixed on both sides of the supporting column 25. The upper ends of the two supporting transverse shafts 27 are provided with limiting plates 28. The two limiting plates 28 are fixedly connected to the supporting column 25. The supporting transverse shafts 27 and the steel structure support frame 7 are screwed together. Four connecting bolts 26 are provided on both sides of the supporting column 25. The four connecting bolts 26 on the same side are respectively threadedly sleeved on the two ends of the steel structure support frame 7; the limiting plates 28 can fully realize the limiting of the steel structure support frame 7, and the supporting transverse shafts Part 27 can effectively limit the steel structure support frame 7 and fully support the steel structure support frame 7; the limiting plate 28 extends into the limiting groove 6 at the upper end of the steel structure support frame 7. Through the action of the limiting plate 28, the steel structure support frame 7 connected to the support column 25 cannot rotate, thereby ensuring its stability, so that the two adjacent steel structure support frames 7 can be moved relative to each other through the subsequent synchronous connection screw member 12, so that the synchronous connection screw member 12 can enter the steel structure support frame 7, and cooperate with the arc-shaped support contact plate assembly 1 and the arc-shaped pressure plate member 4 to complete the fixation.

[0049] Reference Figures 1-7 , the upper ends of the two adjacent steel structure support frames 7 are in common contact with an arc-shaped pressure plate member 4, and the arc-shaped pressure plate member 4 can realize the contact with the upper ends of the opposite sides of the two adjacent steel structure support frames 7, and the arc-shaped pressure plate member 4 is detachably connected to the arc-shaped support and contact plate assembly 1, and a plurality of connecting threaded holes 29 are evenly spaced on both sides of the upper end of the arc-shaped support and contact plate assembly 1, and supporting arc plates 24 are fixed on both sides of the lower end of the arc-shaped support and contact plate assembly 1, and the two supporting arc plates 24 respectively conflict with the corresponding two steel structure support frames 7, and the arc-shaped support and contact plate assembly 1 and the arc-shaped pressure plate member 4 are firmly connected. Notches 16 are provided on both sides of the arc-shaped pressure plate member 4, and the two ends of the arc-shaped support and contact plate assembly 1 extend to the two notches 16 respectively. Both ends of the arc-shaped support and contact plate assembly 1 are fixed with support fixing plates 2, and the support fixing plates 2 is located at the lower end of the arc-shaped pressure plate member 4, and an adjusting screw member 8 is passed through the support and fixing plate 2. Adjusting screw holes 15 are provided on both sides of the arc-shaped pressure plate member 4. The two adjusting screw members 8 are screwed into the two adjusting screw holes 15 respectively, and the upper end of the adjusting screw member 8 is screwed with a limiting nut member 9, and the limiting nut member 9 and the upper end of the arc-shaped pressure plate member 4 conflict with each other; through the cooperation of the notch 16 and the arc-shaped support and contact plate assembly 1, the preliminary connection of the arc-shaped pressure plate member 4 and the arc-shaped support and contact plate assembly 1 can be completed, so that the adjusting screw member 8 and the adjusting screw hole 15 are connected, and at the same time, the arc-shaped pressure plate member 4 can be moved toward the arc-shaped support and contact plate assembly 1 by screwing, so as to control the arc-shaped pressure plate member 4 to squeeze the pressure rod member 23, and then through the cooperation of the pressure rod member 23 and the corresponding components, the connection of the synchronous connection screw member 12 and the steel structure support frame 7 can be achieved.

[0050] Reference Figures 1-7, a connecting partition member 11 is fixed in the arc-shaped support and contact plate assembly 1, a screw mechanism is provided in the connecting partition member 11, a lifting plate 18 and a synchronous connecting screw member 12 are provided on the screw mechanism, the lifting plate 18 is slidably installed in the arc-shaped support and contact plate assembly 1, the lifting plate 18 and the arc-shaped pressure plate member 4 are in conflict, the screw mechanism includes a mounting cavity 13 provided in the connecting partition member 11, a through-hole 20 is provided on one side of the upper end of the mounting cavity 13, the through-hole 20 corresponds to the arc-shaped support and contact plate assembly 1, and a sliding member 22 is slidably installed at the bottom of the mounting cavity 13 The upper end of the sliding member 22 is rotatably connected to the oblique push rod 17, and the synchronously connected screw member 12 passes through the mounting cavity 13 and extends to both sides of the connecting partition member 11. The two ends of the synchronously connected screw member 12 extend to the two ends of the connecting partition member 11 respectively. The synchronously connected screw member 12 is located on one side of the mounting cavity 13 and is provided with a through hole 10. The upper end of the oblique push rod 17 extends into the through hole 10. The upper end of the sliding member 22 is rotatably connected to the oblique rod 21. The upper end of the oblique rod 21 is rotatably connected to the lifting plate 18, and one end of the lifting plate 18 extends into the mounting cavity 13.

[0051] Reference Figures 1-7 The lifting plate 18 can be lowered by the interference between the pressure rod 23 and the arc-shaped pressure plate 4, and the lifting plate 18 can move the sliding member 22 through the inclined rod 21. The movement of the sliding member 22 can enable the inclined push rod 17 to push the synchronous connecting screw member 12 to rotate. As the sliding member 22 moves, the inclined push rod 17 can gradually rotate toward the vertical position, which can enable the synchronous connecting screw member 12 to rotate. When setting, the threads at both ends of the synchronous connecting screw member 12 correspond to the threads in the two connecting screw holes 14 respectively. This can enable the synchronous connecting screw member 12 to complete the connection between the connecting screw holes 14 and the synchronous connecting screw member 12 when the synchronous connecting screw member 12 rotates, so that the two steel structure support frames 7 move toward the direction of the connecting partition member 11. At the same time, during actual preparation, both ends of the synchronous connecting screw member 12 are hemispherically set, which is convenient for quick connection with the connecting screw holes 14.

[0052] Reference Figures 1-7 , the two steel structure support frames 7 are located on both sides of the connecting partition member 11, and the two steel structure support frames 7 are connected to the screw mechanism. The opposite ends of the two steel structure support frames 7 are in conflict with the arc-shaped pressure plate member 4 and the arc-shaped support and contact plate assembly 1. The upper end of the steel structure support frame 7 is provided with a limiting groove 6, and the limiting groove 6 is located at the lower end of the arc-shaped pressure plate member 4. A limiting plug-in member 5 is fixed in the arc-shaped pressure plate member 4, and the limiting plug-in member 5 extends into the limiting groove 6; after the arc-shaped pressure plate member 4 and the arc-shaped support and contact plate assembly 1 are preliminarily connected, they are placed between the two steel structure support frames 7, and the two steel structure support frames 7 are respectively set on both sides of the connecting partition member 11, and the limiting plug-in member 5 is inserted into the corresponding limiting groove 6;

[0053] The staff can make the arc-shaped pressing plate 4 move towards the support fixed plate 2 by rotating the adjusting screw 8, and with the downward movement of the arc-shaped pressing plate 4, the pressure rod 23 can be contacted to make the lifting plate 18 lower, and the inclined rod 21 can push the sliding piece 22 to make the inclined pushing rod 17 drive the synchronous connection screw 12 to rotate, and the rotation of the synchronous connection screw 12 can make the steel structure support frame 7 move between the arc-shaped support contact plate assembly 1 and the arc-shaped pressing plate 4, to complete the connection.

[0054] Referring to Figures 1-5 , both ends of the arc-shaped support contact plate assembly 1 are fixed with contact top plate 3, and two contact top plate 3 are arranged at the upper end of two adjusting screw 8; the arc-shaped support contact plate assembly 1 and the two support fixed plate 2 are integrally formed; in actual preparation, the arc-shaped support contact plate assembly 1, the support fixed plate 2 and the contact top plate 3 are integrally formed, which can effectively improve the connection strength, and the reinforcing plate is arranged between the support fixed plate 2 and the arc-shaped support contact plate assembly 1 and the contact top plate 3 and the arc-shaped support contact plate assembly 1, which improves the connection strength, and the connection partition piece 11 and the arc-shaped support contact plate assembly 1 are integrally formed.

[0055] Referring to Figure 7 , the bottom of the mounting cavity 13 is fixed with a channel guide, and the sliding piece 22 is slidingly installed on the channel guide; the stability of the sliding piece 22 is ensured by the sliding piece 22 and the channel guide.

[0056] Referring to Figures 1-6 , the arc-shaped support contact plate assembly 1 is provided with an opening 19 on one side, and the opening 19 and the through hole 20 are throughly arranged, and the lifting plate 18 is throughly arranged on the opening 19 and the through hole 20, and the lifting plate 18 is slidingly installed in the opening 19, and the end of the lifting plate 18 extending out of the arc-shaped support contact plate assembly 1 is fixed with the pressure rod 23; in actual production, two slide rod parts are fixed in the opening 19, and the stability of the lifting plate 18 and the pressure rod 23 is fully ensured by the two slide rod parts.

[0057] Referring to Figures 1-3 , the opposite ends of the two steel structure support frames 7 are provided with connecting screw holes 14, and the two ends of the synchronous connection screw 12 are threadedly connected in the two connecting screw holes 14; by the cooperation of the connecting screw hole 14 and the synchronous connection screw 12, the internal connection can be completed, and the firmness of the connection is fully improved.

[0058] In the present invention, when the steel structure is being erected, the firmness of the installation of the support columns 25 is ensured, the limit plate 28 can prevent the steel structure support frame 7 from rotating, and the support cross shaft 27 can support the steel structure support frame 7, and the connection and fixation between the steel structure support frame 7 and the support columns 25 can be achieved by the connecting bolt 26, so as to effectively complete the support of the edge of the steel structure support frame 7, and then, a connecting partition member 11 is provided between the two adjacent steel structure support frames 7, and the support of the two adjacent steel structure support frames 7 can be achieved by the arc-shaped support contact plate assembly 1 and the support arc plate 24, and the arc-shaped pressure plate member 4 can be squeezed to complete the fixation of the connecting partition member 11;

[0059] After the arc-shaped pressure plate 4 and the arc-shaped support and contact plate assembly 1 are preliminarily connected, they are placed between the two steel structure support frames 7, and the two steel structure support frames 7 are respectively set on both sides of the connecting partition member 11, and the limiting plug-in member 5 is inserted into the corresponding limiting groove 6;

[0060] The staff can move the arc-shaped pressure plate member 4 toward the direction of the support fixed plate 2 by rotating the adjustment screw member 8. As the arc-shaped pressure plate member 4 moves downward, it can resist the pressure rod member 23 to lower the lifting plate 18, and the inclined rod 21 can push the sliding member 22 so that the inclined push rod member 17 drives the synchronous connection screw member 12 to rotate. The rotation of the synchronous connection screw member 12 can make the steel structure support frame 7 move between the arc-shaped support and contact plate assembly 1 and the arc-shaped pressure plate member 4 to complete the connection;

[0061] When collapse occurs, the connection between the two steel structure support frames 7 will be broken, but this break will not be transmitted to ensure that continuous collapse will not occur.

[0062] 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 technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A steel frame beam-column node structure with improved progressive collapse resistance, comprising a support column (25), characterized in that: Both sides of the support column (25) are provided with mounting mechanisms, and both sides of the support column (25) are sequentially provided with a plurality of steel structure support frames (7), and the two steel structure support frames (7) located on both sides of the support column (25) are respectively connected to the two mounting mechanisms at both ends of the support column (25); The upper ends of two adjacent steel structure support frames (7) are in common contact with an arc-shaped pressure plate member (4), and an arc-shaped support and contact plate assembly (1) is detachably connected to the arc-shaped pressure plate member (4), and a plurality of connecting threaded holes (29) are evenly spaced on both sides of the upper end of the arc-shaped support and contact plate assembly (1), and supporting arc plates (24) are fixed on both sides of the lower end of the arc-shaped support and contact plate assembly (1), and the two supporting arc plates (24) are respectively in contact with the corresponding two steel structure support frames (7), and a connecting partition member (11) is fixed in the arc-shaped support and contact plate assembly (1), and a screw mechanism is provided in the connecting partition member (11), and a lifting plate (18) and a synchronous connecting screw member (12) are provided on the screw mechanism, and the lifting plate (18) is slidably installed in the arc-shaped support and contact plate assembly (1), and the lifting plate (18) and the arc-shaped pressure plate member (4) are in contact; Two steel structure support frames (7) are located on both sides of the connecting partition member (11), and the two steel structure support frames (7) are both connected to the screw mechanism; Both sides of the arc-shaped pressure plate member (4) are provided with notches (16), and both ends of the arc-shaped support and contact plate assembly (1) extend to the two notches (16) respectively; The screw mechanism includes a mounting cavity (13) provided in the connecting partition member (11), a through-hole (20) is provided on one side of the upper end of the mounting cavity (13), the through-hole (20) corresponds to the arc-shaped support and contact plate assembly (1), a sliding member (22) is slidably installed at the bottom of the mounting cavity (13), the upper end of the sliding member (22) is rotatably connected to the oblique push rod member (17), the synchronous connecting screw member (12) passes through the mounting cavity (13) and extends to the connecting partition member (11). On both sides, the two ends of the synchronous connection screw member (12) extend to the two ends of the connection partition member (11) respectively, and a through hole (10) is provided on one side of the synchronous connection screw member (12) located in the installation cavity (13). The upper end of the inclined push rod member (17) extends into the through hole (10), and the upper end of the sliding member (22) is rotatably connected to the inclined rod (21). The upper end of the inclined rod (21) is rotatably connected to the lifting plate (18), and one end of the lifting plate (18) extends into the installation cavity (13).

2. A steel frame beam-column joint structure with improved progressive collapse resistance according to claim 1, characterized in that: A limiting groove (6) is provided at the upper end of the steel structure support frame (7), and the limiting groove (6) is located at the lower end of the arc-shaped pressure plate component (4). A limiting insert component (5) is fixed in the arc-shaped pressure plate component (4), and the limiting insert component (5) extends into the limiting groove (6).

3. The steel frame beam-column joint structure with improved progressive collapse resistance according to claim 1, characterized in that: Both ends of the arc-shaped support and contact plate assembly (1) are fixed with support fixing plates (2), the support fixing plates (2) are located at the lower end of the arc-shaped pressure plate component (4), an adjusting screw component (8) is passed through the support fixing plate (2), and both sides of the arc-shaped pressure plate component (4) are provided with adjusting screw holes (15), two adjusting screw components (8) are screwed into the two adjusting screw holes (15) respectively, and the upper end of the adjusting screw component (8) is screwed with a limiting nut component (9), and the limiting nut component (9) and the upper end of the arc-shaped pressure plate component (4) are in conflict.

4. The steel frame beam-column joint structure with improved progressive collapse resistance according to claim 3, characterized in that: Both ends of the arc-shaped supporting contact plate assembly (1) are fixed with contact top plate members (3), and the two contact top plate members (3) are respectively arranged on the upper ends of the two adjusting screw members (8).

5. The steel frame beam-column joint structure with improved progressive collapse resistance according to claim 1, characterized in that: An I-shaped guide rail is fixed to the bottom of the installation cavity (13), and the sliding member (22) is slidably installed on the I-shaped guide rail.

6. The steel frame beam-column joint structure with improved progressive collapse resistance according to claim 1, characterized in that: An opening (19) is provided on one side of the arc-shaped support and contact plate assembly (1), and the opening (19) and the through-hole (20) are connected. The lifting plate (18) is connected through the opening (19) and the through-hole (20), and the lifting plate (18) is slidably installed in the opening (19). A pressure rod (23) is fixed to one end of the lifting plate (18) extending out of the arc-shaped support and contact plate assembly (1).

7. The steel frame beam-column joint structure with improved progressive collapse resistance according to claim 1, characterized in that: The two steel structure support frames (7) are each provided with a connecting screw hole (14) at one opposite end, and the two ends of the synchronous connecting screw member (12) are respectively threadedly sleeved in the two connecting screw holes (14).

8. The steel frame beam-column joint structure with improved progressive collapse resistance according to claim 3, characterized in that: The arc-shaped supporting and contacting plate assembly (1) and the two supporting and fixing plates (2) are integrally formed.

9. The steel frame beam-column joint structure with improved progressive collapse resistance according to claim 1, characterized in that: The mounting mechanism comprises two supporting transverse shafts (27) fixed on both sides of the supporting column (25), the upper ends of the two supporting transverse shafts (27) are provided with limit plates (28), the two limit plates (28) are fixedly connected to the supporting column (25), the supporting transverse shafts (27) and the steel structure support frame (7) are screwed together, and four connecting bolts (26) are provided on both sides of the supporting column (25), and the four connecting bolts (26) on the same side are respectively threadedly sleeved on both ends of the steel structure support frame (7); The limiting plate (28) extends into the limiting groove (6) at the upper end of the steel structure support frame (7).

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