Building frame supporting structure

Abstract

The invention discloses a building frame supporting structure, which relates to the technical field of building supporting structures, and adopts the technical scheme that the building frame supporting structure comprises an upper cross beam, vertical columns are fixedly connected to two sides of the upper cross beam, a lower cross beam is fixedly connected to the bottoms of the vertical columns, a middle node is fixedly connected to the center of the lower part of the upper cross beam, and a size adjusting mechanism is arranged in the middle node; during site construction, firstly, the middle joint can be fixedly installed in the middle of the upper cross beam through the installation hole, then the size adjusting mechanism can be started according to the installation range drawn by a worker on the upper cross beam, and the middle joint can be installed in the middle of the upper cross beam through the size adjusting mechanism. The adjusting rods on the two sides are driven by the size adjusting mechanism to move to finely adjust the overall size of the middle joint, and compared with a prefabricated middle joint with a fixed structure, the length of the middle joint can be adjusted when size errors occur, so that the influence caused by the size errors is eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of building support structures, and in particular to a building frame support structure. Background Art

[0002] Building frame support structure is an important part of modern building design. In order to enhance the overall stiffness and withstand horizontal loads in traditional frame structures, buckling restrained support came into being. This support structure can effectively absorb and disperse external forces through innovative mechanical design, significantly improving the building's earthquake resistance and disaster reduction capabilities. With the advancement of materials science and structural engineering, buckling restrained support not only optimizes the safety of buildings, but also achieves more flexible spatial layout and aesthetics. It is widely used in high-rise buildings, large-span structures and important public facilities, and has become an indispensable technology in the field of modern construction.

[0003] After searching, the invention patent of Chinese patent number CN118087695A discloses a steel frame combined shock-absorbing building structure, method and design system with buckling restraint support, including a steel structure main body, the steel structure main body includes steel frame beams, steel frame columns and buckling restraint support, the buckling restraint support is connected to the steel frame beams and the steel frame columns, and it also includes a tuned mass damping building body connected to the top of the steel structure main body, and the steel structure main body and the tuned mass damping building body are connected through lead rubber bearings. The steel frame combined shock-absorbing building structure and method with buckling restraint support of the present invention sets a tuned mass damping building body on the roof, and utilizes its large mass, by setting a lead rubber bearing at the bottom of the tuned mass damping building body and connecting it with the main structure, it can effectively reduce the base shear force, displacement and floor acceleration of the building structure under the action of earthquake. Compared with the existing technology, the invention patent with Chinese patent number CN118087695A solves the problems that the isolation trench of the existing building frame support structure is generally wide, the building curtain wall, electromechanical pipelines, etc. are difficult to handle, and so far some areas are still calculating the building area based on the isolation layer. The civil air defense basement is also complicated to handle due to the existence of the isolation layer, and the burial depth of the basement will be increased. In addition, the combined shock-absorbing solution of buckling restrained support and viscous damper requires more diagonal bracing components inside the building, affecting the building layout. At the same time, the cost of viscous dampers is relatively high.

[0004] However, in the actual use of the above-mentioned device, the intermediate connection nodes of the V-shaped buckling restrained support are mostly prefabricated in the factory by workers according to the drawings and combined with the actual situation. However, the prefabricated intermediate connection nodes may also have length errors. If the error is small, it can be repaired by fine-tuning the position or angle of the support. If the error is large, it cannot be connected normally, and the inspection and rework will waste time, thereby delaying the construction progress. Therefore, a building frame support structure is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art that the intermediate connection nodes of the V-type buckling restrained support are mostly prefabricated in the factory by workers according to the drawings and combined with the actual situation. However, the size of the prefabricated intermediate connection nodes may also have errors. If the error is small, it can be repaired by fine-tuning the position or angle of the support. If the error is large, it cannot be connected normally, and the inspection and rework will waste time, thereby delaying the construction process. A building frame support structure is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A building frame support structure, comprising an upper crossbeam, columns are fixedly connected to both sides of the upper crossbeam, a lower crossbeam is fixedly connected to the bottom of the column, an intermediate node is fixedly connected to the lower center of the upper crossbeam, a size adjustment mechanism is arranged inside the intermediate node, the size adjustment mechanism drives an adjustment rod slidably connected inside the intermediate node to move to adjust the overall length of the intermediate node, a multi-stage adjustment mechanism is arranged inside the adjustment rod, and the multi-stage adjustment mechanism can adjust the moving length of the adjustment rod;

[0008] Adjustment rods are symmetrically and slidingly connected on both sides of the middle node, and a support foot node is fixedly connected to the side of the adjustment rod away from the middle node. A buckling restraint support structure is arranged at the lower part of the support foot node. The buckling restraint support structure dissipates energy by buckling through a core unit arranged inside. A support foot node is arranged at the lower part of the buckling restraint support structure, and the support foot node is fixedly connected to the joint between the column and the lower beam.

[0009] The above technical solution further includes:

[0010] A plurality of mounting holes are arranged inside the support foot node, and bolts can be installed in the mounting holes. A connecting head is rotatably connected to the upper part of the support foot node, and a pin is arranged on one side of the connecting head, and the pin passes through the connecting head and the support foot node.

[0011] The buckling restraint support structure comprises a restraint shell fixedly connected to the upper part of the connection head, a core unit is arranged inside the restraint shell, a gap between the restraint shell and the core unit is poured with concrete, and the surface of the core unit is a non-bonding material.

[0012] A mounting plate is arranged on the upper part of the intermediate node, and a plurality of mounting holes are opened on the upper part of the mounting plate. Bolts are driven into the mounting holes to fix the middle part of the upper cross beam.

[0013] The size adjustment mechanism includes a first motor arranged inside the intermediate node, a first gear is arranged at the output end of the first motor, the first gear is rotationally connected to the intermediate node, the first gear is meshedly connected to the second gear, the second gear is rotationally connected to the intermediate node, the second gear is fixedly connected to a rotating shaft away from the first gear, a three-stage adjustment gear, a two-stage adjustment gear and a one-stage adjustment gear are equidistantly arranged on the rotating shaft, and a transmission rack is arranged at the lower part of the three-stage adjustment gear, the two-stage adjustment gear and the one-stage adjustment gear.

[0014] The three-stage adjustment gear, the two-stage adjustment gear and the one-stage adjustment gear are three gears with the same module but different sizes. The circumference of the three-stage adjustment gear is 10 cm, the circumference of the two-stage adjustment gear is 5 cm, and the circumference of the one-stage adjustment gear is 1 cm.

[0015] The rotating shaft is rotationally connected to the middle node, and a transmission slide groove is provided at the connection between the rotating shaft and the adjusting rod, and the vertical height of the transmission slide groove is slightly larger than the diameter of the rotating shaft.

[0016] The multi-stage adjustment mechanism includes a transmission rack arranged at the bottom of a third-stage adjustment gear, a second-stage adjustment gear and a first-stage adjustment gear. Lifting mechanisms are arranged on both sides of the transmission rack, and the lifting mechanisms can drive the transmission rack to move and engage with the third-stage adjustment gear, the second-stage adjustment gear and the first-stage adjustment gear.

[0017] The lifting mechanism comprises a lifting shell fixedly connected to the upper part of the adjusting rod, a second motor is arranged on the upper part of the lifting shell, and a lifting assembly is arranged at the output end of the second motor.

[0018] The lifting assembly includes a screw rod arranged at the output end of the second motor, the screw rod is rotatably connected to the lifting shell, the screw rod is threadedly connected to a transmission member, the transmission member is slidably connected to the lifting shell, and the transmission member is fixedly connected to a transmission rack on the side away from the lifting shell.

[0019] The present invention has the following beneficial effects:

[0020] 1. In the present invention, during on-site construction, the intermediate node can first be fixedly installed in the middle of the upper beam through the installation hole, and then the size adjustment mechanism can be started according to the installation range drawn by the workers on the upper beam. The size adjustment mechanism drives the adjusting rods on both sides to move to fine-tune the overall size of the intermediate node. Compared with the prefabricated intermediate node with a fixed structure, the present structure can adjust the length of the intermediate node when an error occurs in the size, thereby eliminating the influence of the size error. The device can be used without rework, which ensures construction efficiency. A multi-level adjustment mechanism is also provided inside the adjusting rod. The moving length of the adjusting rod can be flexibly adjusted through the multi-level adjustment mechanism, which effectively improves the adjustment accuracy, so that the intermediate node can be connected normally regardless of the size of the error during installation, thereby ensuring construction efficiency. After the adjustment is completed, the adjusting rod is welded to the intermediate node to restore the intermediate node to a rigid body. At the same time, the first motor inside the intermediate node can be removed to save costs.

[0021] 2. In the present invention, when installing the buckling restrained support structure, the connecting head and the support foot node are connected by a pin shaft. This connection method can achieve a certain degree of rotation, and the connection and installation are relatively simple and the construction speed is fast. After the installation is completed, when an earthquake occurs, the buckling restrained support structure can effectively absorb and consume seismic energy under the action of the earthquake through the yield energy dissipation of the core unit, thereby protecting the building frame from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural schematic diagram of a building frame support structure proposed by the present invention;

[0023] Figure 2 It is a schematic diagram of the support foot node in the present invention;

[0024] Figure 3 It is a schematic diagram of the interior of the buckling restraint support structure in the present invention;

[0025] Figure 4 It is a schematic diagram of the overall structure of the intermediate node in the present invention;

[0026] Figure 5 Schematic diagram of the internal structure of the intermediate node in the present invention;

[0027] Figure 6 It is a schematic diagram of the internal structure of the adjusting rod in the present invention;

[0028] Figure 7 It is a schematic diagram of the overall structure of the lifting mechanism in the present invention;

[0029] Figure 8 It is a schematic diagram of the internal structure of the lifting mechanism in the present invention.

[0030] In the figure: 1. upper crossbeam; 2. column; 3. lower crossbeam; 4. intermediate node; 5. constraint shell; 6. support foot node; 7. mounting hole; 8. pin shaft; 9. connector; 10. core unit; 11. adjustment rod; 12. first motor; 13. first gear; 14. second gear; 15. rotating shaft; 16. first-stage adjustment gear; 17. second-stage adjustment gear; 18. third-stage adjustment gear; 19. transmission rack; 20. transmission slide; 21. lifting shell; 22. second motor; 23. screw rod; 24. transmission part. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] like Figure 1-Figure 8 As shown, a building frame support structure proposed by the present invention comprises an upper crossbeam 1, columns 2 are fixedly connected to both sides of the upper crossbeam 1, a lower crossbeam 3 is fixedly connected to the bottom of the column 2, an intermediate node 4 is fixedly connected to the lower center of the upper crossbeam 1, a size adjustment mechanism is arranged inside the intermediate node 4, the size adjustment mechanism drives the adjustment rod 11 slidably connected inside the intermediate node 4 to move to adjust the overall length of the intermediate node 4, a multi-stage adjustment mechanism is arranged inside the adjustment rod 11, and the multi-stage adjustment mechanism can adjust the moving length of the adjustment rod 11;

[0034] Adjustment rods 11 are symmetrically and slidably connected on both sides of the middle node 4, and a support foot node 6 is fixedly connected to the side of the adjustment rod 11 away from the middle node 4. A buckling restraint support structure is arranged at the bottom of the support foot node 6. The buckling restraint support structure performs buckling energy dissipation through the core unit 10 arranged inside. A support foot node 6 is arranged at the bottom of the buckling restraint support structure, and the support foot node 6 is fixedly connected to the joint between the column 2 and the lower beam 3;

[0035] The size adjustment mechanism includes a first motor 12 arranged inside the intermediate node 4, a first gear 13 is arranged at the output end of the first motor 12, the first gear 13 is rotatably connected to the intermediate node 4, the first gear 13 is meshedly connected to the second gear 14, the second gear 14 is rotatably connected to the intermediate node 4, the second gear 14 is fixedly connected to a rotating shaft 15 away from the first gear 13, and a third-stage adjusting gear 18, a second-stage adjusting gear 17 and a first-stage adjusting gear 16 are equidistantly arranged on the rotating shaft 15, and the third-stage adjusting gear 18, the second-stage adjusting gear 17 and the first-stage adjusting gear 16 are equidistantly arranged on the rotating shaft 15. The lower part of the adjusting gear 17 and the first-stage adjusting gear 16 is provided with a transmission rack 19. The third-stage adjusting gear 18, the second-stage adjusting gear 17 and the first-stage adjusting gear 16 are three gears with the same module but different sizes. The circumference of the third-stage adjusting gear 18 is 10 cm, the circumference of the second-stage adjusting gear 17 is 5 cm, and the circumference of the first-stage adjusting gear 16 is 1 cm. The rotating shaft 15 is rotatably connected with the intermediate node 4. A transmission slide 20 is provided at the connection between the rotating shaft 15 and the adjusting rod 11, and the vertical height of the transmission slide 20 is slightly larger than the diameter of the rotating shaft 15;

[0036] The multi-stage adjustment mechanism includes a transmission rack 19 arranged at the lower parts of the three-stage adjustment gear 18, the two-stage adjustment gear 17 and the first-stage adjustment gear 16. Lifting mechanisms are arranged on both sides of the transmission rack 19. The lifting mechanism can drive the transmission rack 19 to move and engage with the three-stage adjustment gear 18, the two-stage adjustment gear 17 and the first-stage adjustment gear 16. The lifting mechanism includes a lifting shell 21 fixedly connected to the upper part of the adjustment rod 11, a second motor 22 is arranged on the upper part of the lifting shell 21, and a lifting assembly is arranged at the output end of the second motor 22. The lifting assembly includes a screw rod 23 arranged at the output end of the second motor 22, the screw rod 23 is rotatably connected to the lifting shell 21, the screw rod 23 is threadedly connected to a transmission member 24, the transmission member 24 is slidably connected to the lifting shell 21, and the transmission member 24 is fixedly connected to the transmission rack 19 on the side away from the lifting shell 21.

[0037] In this embodiment, during installation, the intermediate node 4 and the support foot node 6 can be installed in a fixed position according to the design drawings and on-site markings, and then the first motor 12 inside the intermediate node 4 can be started according to the on-site markings of the workers, and the first motor 12 can drive the first gear 13 to rotate, and the rotation of the first gear 13 can drive the meshing second gear 14 to rotate, and the rotation of the second gear 14 can drive the fixedly connected rotating shaft 15 to rotate, and a three-stage adjustment gear 18, a two-stage adjustment gear 17 and a first-stage adjustment gear 16 are fixedly connected to the rotating shaft 15, and the adjustment rod 11 can be driven to move by driving them to rotate and meshing with the transmission rack 19 arranged below, and the overall length of the intermediate node 4 can be adjusted by driving the adjustment rod 11 to move to both sides. Compared with the prefabricated intermediate node 4 with a fixed structure, this structure can adjust the length of the intermediate node 4 when there is a size error, thereby eliminating the influence of the size error;

[0038] Before the control adjusting rod 11 is moved and adjusted, the screw rod 23 can be driven to rotate by starting the second motor 22. The rotation of the screw rod 23 can drive the threaded transmission member 24 to move, and the movement of the transmission member 24 can drive the transmission rack 19 fixedly connected to the transmission member 24 to move. By controlling the transmission rack 19 at different positions to move upward, the moving distance of the adjusting rod 11 can be adjusted in multiple stages. When the transmission rack 19 is meshed and connected with the three-stage adjusting gear 18, the three-stage adjusting gear 18 rotates one circle to drive the adjusting rod 11 to advance 10 cm, when connected to the second-stage adjusting gear 17, it can advance 5 cm, and when connected to the first-stage adjusting gear 16, it can advance 1 cm. The moving distance of the adjusting rod 11 can be flexibly adjusted through the multi-stage adjustment mechanism, thereby effectively improving the adjustment accuracy. After the adjustment is completed, the adjusting rod 11 is welded to the intermediate node 4 to restore the intermediate node 4 to a rigid body. Finally, the first motor 12 inside the intermediate node 4 can be removed to save costs and improve the use effect of the device.

[0039] Embodiment 2

[0040] like Figure 1-Figure 8 As shown, a plurality of mounting holes 7 are provided inside the support foot node 6, and bolts can be installed in the mounting holes 7. A connector 9 is rotatably connected to the upper part of the support foot node 6, and a pin 8 is provided on one side of the connector 9, and the pin 8 passes through the connector 9 and the support foot node 6;

[0041] The buckling restraint support structure includes a restraint shell 5 fixedly connected to the upper part of the connector 9, a core unit 10 is arranged inside the restraint shell 5, a gap between the restraint shell 5 and the core unit 10 is poured with concrete, and the surface of the core unit 10 is a non-bonding material.

[0042] In this embodiment, when installing the buckling restraint support structure, the connector 9 is connected to the support foot node 6 through the pin shaft 8. This connection method can achieve a certain degree of rotation, which can adapt to the deformation requirements of the structure under the action of earthquakes and the like, reduce the internal force of the structure, and the connection and installation are relatively simple, without the need for complicated welding or bolt tightening operations, and the construction speed is fast. After the installation is completed, when an earthquake occurs, the buckling restraint support structure can effectively absorb and consume seismic energy under the action of an earthquake through the yield energy dissipation of the internal core unit 10, the prevention of buckling and the provision of lateral constraints by the concrete filling inside the restraint shell 5, and the reduction of friction and the guarantee of deformation coordination by the sliding mechanism, thereby protecting the main structure from damage.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A building frame support structure, comprising an upper crossbeam (1), characterized in that: The upper crossbeam (1) is fixedly connected to columns (2) on both sides, the bottom of the column (2) is fixedly connected to a lower crossbeam (3), the lower center of the upper crossbeam (1) is fixedly connected to an intermediate node (4), a size adjustment mechanism is arranged inside the intermediate node (4), the size adjustment mechanism drives an adjustment rod (11) slidably connected inside the intermediate node (4) to move to adjust the overall length of the intermediate node (4), and a multi-stage adjustment mechanism is arranged inside the adjustment rod (11), and the multi-stage adjustment mechanism can adjust the moving length of the adjustment rod (11); Adjustment rods (11) are symmetrically and slidably connected to both sides of the middle node (4); a support foot node (6) is fixedly connected to the side of the adjustment rod (11) away from the middle node (4); a buckling restraint support structure is arranged at the bottom of the support foot node (6); the buckling restraint support structure buckles and dissipates energy through a core unit (10) arranged inside; a support foot node (6) is arranged at the bottom of the buckling restraint support structure; and the support foot node (6) is fixedly connected to the joint between the column (2) and the lower cross beam (3).

2. A building frame support structure according to claim 1, characterized in that: A plurality of mounting holes (7) are arranged inside the support foot node (6), and bolts can be installed in the mounting holes (7). A connecting head (9) is rotatably connected to the upper part of the support foot node (6), and a pin shaft (8) is arranged on one side of the connecting head (9), and the pin shaft (8) passes through the connecting head (9) and the support foot node (6).

3. A building frame support structure according to claim 1, characterized in that: The buckling restraint support structure comprises a restraint shell (5) fixedly connected to the upper part of a connector (9), a core unit (10) is arranged inside the restraint shell (5), a gap between the restraint shell (5) and the core unit (10) is poured with concrete, and the surface of the core unit (10) is a non-bonding material.

4. A building frame support structure according to claim 1, characterized in that: A mounting plate is arranged on the upper part of the intermediate node (4), and a plurality of mounting holes (7) are provided on the upper part of the mounting plate. Bolts are driven into the mounting holes (7) to fix the mounting plate to the middle part of the upper cross beam (1).

5. The building frame support structure according to claim 1, characterized in that: The size adjustment mechanism comprises a first motor (12) arranged inside the intermediate node (4); a first gear (13) is arranged at an output end of the first motor (12); the first gear (13) is rotationally connected to the intermediate node (4); the first gear (13) is meshingly connected to a second gear (14); the second gear (14) is rotationally connected to the intermediate node (4); a rotating shaft (15) is fixedly connected to a side of the second gear (14) away from the first gear (13); a third-stage adjustment gear (18), a second-stage adjustment gear (17) and a first-stage adjustment gear (16) are equidistantly arranged on the rotating shaft (15); and transmission racks (19) are arranged at the lower parts of the third-stage adjustment gear (18), the second-stage adjustment gear (17) and the first-stage adjustment gear (16).

6. A building frame support structure according to claim 5, characterized in that: The three-stage adjustment gear (18), the two-stage adjustment gear (17) and the one-stage adjustment gear (16) are three gears with the same module but different sizes. The circumference of the three-stage adjustment gear (18) is 10 cm, the circumference of the two-stage adjustment gear (17) is 5 cm, and the circumference of the one-stage adjustment gear (16) is 1 cm.

7. A building frame support structure according to claim 5, characterized in that: The rotating shaft (15) is rotationally connected to the middle node (4), and a transmission slide groove (20) is provided at the connection between the rotating shaft (15) and the adjusting rod (11), and the vertical height of the transmission slide groove (20) is slightly greater than the diameter of the rotating shaft (15).

8. The building frame support structure according to claim 1, characterized in that: The multi-stage adjustment mechanism comprises a transmission rack (19) arranged at the bottom of the third-stage adjustment gear (18), the second-stage adjustment gear (17) and the first-stage adjustment gear (16); lifting mechanisms are arranged on both sides of the transmission rack (19); and the lifting mechanisms can drive the transmission rack (19) to move and mesh with the third-stage adjustment gear (18), the second-stage adjustment gear (17) and the first-stage adjustment gear (16).

9. A building frame support structure according to claim 8, characterized in that: The lifting mechanism comprises a lifting shell (21) fixedly connected to the upper part of the adjusting rod (11), a second motor (22) is arranged on the upper part of the lifting shell (21), and a lifting component is arranged at the output end of the second motor (22).

10. A building frame support structure according to claim 9, characterized in that: The lifting assembly includes a screw rod (23) arranged at the output end of the second motor (22), the screw rod (23) is rotatably connected to the lifting shell (21), the screw rod (23) is threadedly connected to a transmission member (24), the transmission member (24) is slidably connected to the lifting shell (21), and the transmission member (24) is fixedly connected to a transmission rack (19) on the side away from the lifting shell (21).

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