Steel structural member node optimization structure and optimization method

Abstract

The invention discloses a steel structure component node optimization structure and an optimization method, and relates to the technical field of steel structures, the steel structure component node optimization structure comprises a steel column and a steel beam, the bottom of the steel column is provided with a column foot anchoring unit, and the peripheral surface of the column foot anchoring unit is coated with concrete; the side wall of the steel column is fixedly connected with the steel beam through an anti-torsion fastening unit; a torque restraining unit is installed on a web of the steel beam. The optimization method of the steel structure component node optimization structure comprises the following steps that S1, a steel column foundation is excavated; s2, pre-embedded anchor bolts are installed; s3, sizing blocks are installed; s4, hoisting the steel column; s5, mounting a steel beam; and S6, the anti-torsion support is welded. According to the steel structure component node optimization structure and optimization method, the column base node and the main beam node are optimized, the installation and construction cost is saved, the structural safety performance is improved, early warning can be conducted in time, management personnel can conduct handling in time conveniently, and losses are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structures, and in particular to an optimized structure and an optimization method for a node of a steel structure component. Background Art

[0002] Steel structure is a structure made of steel materials and is one of the main types of building structures in modern construction sites. As one of the main types of steel structure materials, H-shaped steel has the advantages of strong bending resistance, simple construction, cost savings and light structure weight, and is widely used in construction sites.

[0003] At present, the nodes of steel structure components are generally connected by welding or bolts. The welding construction efficiency is low. The bolts are subjected to large shear force during bolt connection, and the bolts are easy to break, with poor safety, and the shock absorption effect at the connection position is poor. At the same time, the installation position of the column foot node is not easy to adjust during the installation process, and the crane needs to be used for a long time, resulting in increased labor costs and machinery use costs. Furthermore, the main beam node is affected by the load and support conditions after installation, making the steel beam prone to free torsion or constrained torsion, which can easily bring great safety hazards and property losses.

[0004] How to develop an optimized structure and optimization method for steel structure component nodes, optimize column base nodes and main beam nodes, save installation and construction costs, increase structural safety performance, and provide timely warnings to facilitate timely disposal by management personnel and reduce losses has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0005] The purpose of the present invention is to provide a steel structure component node optimization structure and optimization method to solve the problems listed in the background technology.

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

[0007] The present invention discloses a steel structure member node optimization structure, comprising a steel column and a steel beam, wherein a column foot anchoring unit is installed at the bottom of the steel column, and the outer peripheral surface of the column foot anchoring unit is coated with concrete;

[0008] The side wall of the steel column is fixedly connected to the steel beam via a torsion-resistant fastening unit;

[0009] A torque restraint unit is installed on the web of the steel beam.

[0010] Preferably, the column foot anchoring unit comprises a bottom plate, which is welded and installed on the lower end of the steel column; the upper surface of the bottom plate is fixedly connected to the lower end of the reinforcing rib plate, and the side edge of the reinforcing rib plate is fixedly connected to the outer peripheral surface of the steel column;

[0011] A leveling block is installed on the lower surface of the base plate;

[0012] The bottom plate is also provided with a through hole, in which a pre-embedded anchor bolt assembly is installed. The pre-embedded anchor bolts of the pre-embedded anchor bolt assembly are cast in concrete, and the nuts of the pre-embedded anchor bolt assembly are in contact with the upper surface of the bottom plate.

[0013] Preferably, the leveling block is made of arc steel plates welded into a cross shape.

[0014] Preferably, the anti-torsion fastening unit comprises a support plate, a support plate and a connecting ear plate, a side wall of one end of the support plate is fixedly connected to the side wall of the steel column, and the side wall of the support plate is fixedly connected to the lower surface of the support plate and the side wall of the steel column respectively;

[0015] The two connecting ear plates are relatively fixedly mounted on the side walls of the steel column, and mounting through holes are provided on the connecting ear plates and the webs of the steel beams, and the mounting through holes on the connecting ear plates correspond to the mounting through holes on the webs of the steel beams;

[0016] A bolt assembly is fixedly installed in the installation through hole.

[0017] Preferably, it also includes a torsion-resistant support, wherein the torsion-resistant support is sleeved on the end of the steel beam;

[0018] The torsion-resistant support comprises an upper flange fastening area, a web fastening area and a lower flange fastening area, wherein the lower end opening of the upper flange fastening area is fixedly connected to the upper end opening of the web fastening area, and the lower end opening of the web fastening area is fixedly connected to the upper end opening of the lower flange fastening area;

[0019] The lower end opening of the lower flange plate fastening area is fixedly connected to the upper surface of the support plate, the upper surface of the upper flange plate fastening area is fixedly connected to the bottom of the connecting plate, the other side wall of the connecting plate is flush with the side wall of the anti-torsion support, and the anti-torsion support and the connecting plate are both fixedly connected to the side wall of the steel column.

[0020] Preferably, the torque restraint unit comprises a cross-shaped reinforcement plate and a vertical support plate, and the cross-shaped reinforcement plate is fixedly mounted on the web in the middle of the steel beam;

[0021] The vertical support plates are located on both sides of the cross-shaped reinforcement plate, and the side walls of the vertical support plates are fixedly connected to the flange plates and the web plates of the steel beams respectively.

[0022] Preferably, it further comprises a roller, which is movably mounted in the middle of the cross-shaped reinforcing plate, and the outer circumferential surface of the roller is respectively in contact with two steel strands, and the two ends of the steel strands are fixedly connected to the vertical support plate;

[0023] An angular displacement sensor and a NB-IOT module are installed inside the rotating roller, and the angular displacement sensor is electrically connected to the central control room.

[0024] A method for optimizing the node structure of a steel structure component comprises the following steps:

[0025] S1. Excavate the steel column foundation. After the steel column foundation is excavated according to the design drawings and on-site construction conditions, place the embedded anchor bolts;

[0026] S2. Install the embedded anchor bolts, pour concrete in the steel column foundation, and control the concrete elevation, the position of the embedded anchor bolts, and the height between the embedded anchor bolts and the top surface of the concrete while vibrating and compacting the concrete;

[0027] S3. Install the washer iron. Place the washer iron in the middle of the embedded anchor bolt before the concrete is finally set. Install the polytetrafluoroethylene rubber bearing on the top of the washer iron and control the elevation of the polytetrafluoroethylene rubber bearing.

[0028] S4, hoisting the steel column, hoisting the prefabricated steel column on the embedded anchor bolt, making the leveling block abut against the washer, and installing jacks around the steel column to fine-tune the installation angle of the steel column. After the position of the steel column is adjusted, nuts are installed on the embedded anchor bolts, and concrete is poured again;

[0029] S5. Install the steel beam, cut off a part of the lower flange plate of the steel beam with the torque restraint unit installed, and install anti-torsion supports on both ends of the steel beam. After the steel beam is hoisted on the support plate, the steel beam is fixedly connected to the connecting ear plate by a bolt assembly;

[0030] S6. Weld the torsion-resistant bearing. After the steel beam is installed, slide the torsion-resistant bearing so that it abuts against the side wall of the steel column and fully weld the joint.

[0031] Preferably, in step S5, the tensioning strength of the steel strand needs to be pre-adjusted, and the ends of the steel strand are fixedly connected to the vertical support plate via a bolt assembly.

[0032] Compared with the prior art, the beneficial technical effects of the present invention are:

[0033] The present invention discloses a steel structure component node optimization structure and optimization method. By installing a washer, a polytetrafluoroethylene rubber support and a leveling block at the bottom of a steel column, the convenience of position adjustment during the installation of the steel column and the seismic resistance of the steel column are ensured, the use of a crane during the leveling process is reduced, and construction costs are saved. By installing a torque constraint unit on the steel beam and an anti-torsion support between the column and beam nodes, the stability of the steel beam structure is ensured, the safety performance of the structure is increased, and through intelligent monitoring of the steel beam structure, timely warnings can be carried out to facilitate timely disposal by management personnel and reduce losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] Figure 1 This is a schematic diagram of the main view of an optimized structure of a steel structure component node according to the present invention;

[0036] Figure 2 A three-dimensional schematic diagram of an optimized structure of a steel structure component node according to the present invention;

[0037] Figure 3 This is a schematic diagram of the main view of an optimized structure of a steel structure component node of the present invention (without a torsion-resistant support on one side);

[0038] Figure 4 It is a three-dimensional schematic diagram of the anti-torsion support of the present invention;

[0039] Figure 5 It is a schematic diagram of the main view of the anti-torsion support of the present invention;

[0040] Figure 6 It is a schematic diagram of the assembly of the torque constraint unit of the present invention;

[0041] Figure 7 This is a three-dimensional schematic diagram of the installation position of the roller of the present invention;

[0042] Figure 8 It is a three-dimensional schematic diagram of the leveling block of the present invention.

[0043] Explanation of the reference numerals in the accompanying drawings: 1. Embedded anchor bolt assembly; 2. Reinforced ribs; 3. Steel columns; 4. Torsion-resistant bearings; 401. Upper flange plate fastening area; 402. Web plate fastening area; 403. Lower flange plate fastening area; 5. Connecting plate; 6. Steel beam; 7. M-shaped reinforcement plate; 8. Support plate; 9. Support plate; 10. Vertical support plate; 11. Steel strand; 12. Roller; 13. Leveling block; 14. Bottom plate; 15. Connecting ear plate. DETAILED DESCRIPTION

[0044] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] like Figure 1-8 As shown, a node optimization structure of a steel structure member includes a steel column 3 and a steel beam 6. A column foot anchoring unit is installed at the bottom of the steel column 3, and the outer peripheral surface of the column foot anchoring unit is coated with concrete;

[0046] The side wall of the steel column 3 is fixedly connected to the steel beam 6 via a torsion-resistant fastening unit;

[0047] A torque constraint unit is installed on the web of the steel beam 6. By optimizing the column foot node, the position accuracy and convenience of the steel column installation process are guaranteed, which is conducive to reducing the cost of manpower, materials and machinery, and at the same time avoiding the instability and damage of the steel column;

[0048] By installing a torque constraint unit on the steel beam, a certain pulling effect can be exerted on the steel beam when torsion occurs, thereby preventing the torsion of the steel beam from deviating from the design value.

[0049] Specifically, the column foot anchoring unit includes a bottom plate 14, which is welded and installed on the lower end of the steel column 3; the upper surface of the bottom plate 14 is fixedly connected to the lower end of the reinforcing rib 2, and the side of the reinforcing rib 2 is fixedly connected to the outer peripheral surface of the steel column 3;

[0050] A leveling block 13 is installed on the lower surface of the bottom plate 14. The leveling block 13 is welded into a cross shape using arc steel plates. When adjusting the steel column, it is convenient to fine-tune the left and right front and back deflections of the steel column, which reduces the use of cranes, saves construction costs, and facilitates concrete filling. Furthermore, a groove is provided on the arc edge of one of the arc steel plates of the leveling block, and a groove is provided on the horizontal edge of the other arc steel plate. The two arc steel plates are spliced ​​and fully welded to ensure the structural stability of the leveling block.

[0051] The base plate 14 is also provided with a through hole, in which a pre-embedded anchor assembly 1 is installed. The pre-embedded anchors of the pre-embedded anchor assembly 1 are cast in concrete, and the nuts of the pre-embedded anchor assembly 1 abut against the upper surface of the base plate 14, so that the steel column is fixed by the pre-embedded anchor assembly.

[0052] Specifically, the anti-torsion fastening unit includes a support plate 8, a support plate 9 and a connecting ear plate 15, a side wall of one end of the support plate 8 is fixedly connected to the side wall of the steel column 3, and the side wall of the support plate 9 is fixedly connected to the lower surface of the support plate 8 and the side wall of the steel column 3 respectively;

[0053] The two connecting ear plates 15 are relatively fixedly mounted on the side walls of the steel column 3, and mounting through holes are provided on the connecting ear plates 15 and the web of the steel beam 6, and the mounting through holes on the connecting ear plates 15 correspond to the mounting through holes on the web of the steel beam 6;

[0054] A bolt assembly is fixedly installed in the installation through hole, and the supporting plate is used to support the end of the steel beam, thereby improving the convenience and firmness of the installation process of the end of the steel beam and the connecting ear plate.

[0055] Specifically, it also includes a torsion-resistant support 4, which is mounted on the end of the steel beam 6. Before installation, the torsion-resistant support can slide along the end of the steel beam;

[0056] The anti-torsion support 4 includes an upper flange fastening area 401, a web fastening area 402 and a lower flange fastening area 403, the lower end opening of the upper flange fastening area 401 is fixedly connected to the upper end opening of the web fastening area 402, and the lower end opening of the web fastening area 402 is fixedly connected to the upper end opening of the lower flange fastening area 403;

[0057] The lower end opening of the lower flange plate fastening area 403 is fixedly connected to the upper surface of the support plate 8, the upper surface of the upper flange plate fastening area 401 is fixedly connected to the bottom of the connecting plate 5, the other side wall of the connecting plate 5 is flush with the side wall of the anti-torsion support 4, and the anti-torsion support 4 and the connecting plate 5 are both fixedly connected to the side wall of the steel column 3; the anti-torsion support can limit the upper flange plate, web plate and lower flange plate of the steel beam to prevent torsional deformation of the end of the steel beam, and at the same time can improve the stability of the main beam node connection to avoid the risk of breakage when the simple bolt connection is subjected to excessive force.

[0058] Specifically, the torque constraint unit includes a cross-shaped reinforcement plate 7 and a vertical support plate 10. The cross-shaped reinforcement plate 7 is fixedly mounted on the web in the middle of the steel beam 6, and can strengthen the middle of the steel beam to prevent torsional damage in the middle of the steel beam.

[0059] The vertical support plate 10 is located on both sides of the M-shaped reinforcement plate 7, and the side walls of the vertical support plate 10 are fixedly connected to the flange plate and the web plate of the steel beam 6 respectively. The vertical support plate can strengthen the two ends of the steel beam to avoid bending at both ends of the steel beam.

[0060] Specifically, it also includes a roller 12, which is movably installed in the middle of the cross-shaped reinforcement plate 7, and the outer peripheral surface of the roller 12 is respectively abutted against two steel strands 11, and the two ends of the steel strands 11 are fixedly connected to the vertical support plate 10, the steel strand at the upper end is abutted against the bottom of the roller, and the steel strand at the lower end is abutted against the upper end of the roller. When the steel beam is about to twist, the steel strand can pull the steel beam to prevent further twisting damage to the steel beam, and the twisted steel beam can be reset and repaired by pulling the steel strand, while reducing the use of the vertical support plate on the web of the steel beam, reducing the deadweight of the steel beam, and further avoiding the instability and damage of the steel column;

[0061] An angular displacement sensor and an NB-IOT module are installed inside the roller 12. The angular displacement sensor is electrically connected to the central control room. When the structure of the steel beam changes, the steel strands will drive the roller to deflect. Furthermore, the angular displacement sensor can measure the displacement signal and convert the angular displacement signal into an electrical signal through the NB-IOT module and transmit it to the central control room, so that the management personnel can deal with the deformation of the steel beam in time, avoid the escalation of safety risks, and avoid safety accidents in advance, ensuring the safety of life and property.

[0062] A method for optimizing the node structure of a steel structure component comprises the following steps:

[0063] S1. Excavate the steel column foundation. After the steel column foundation is excavated according to the design drawings and on-site construction conditions, place the embedded anchor bolts;

[0064] S2. Install the embedded anchor bolts, pour concrete in the steel column foundation, and control the concrete elevation, the position of the embedded anchor bolts, and the height between the embedded anchor bolts and the top surface of the concrete while vibrating and compacting the concrete;

[0065] S3. Install the pad iron. Place the pad iron in the middle of the embedded anchor bolt before the concrete is finally set. Install the polytetrafluoroethylene rubber bearing on the pad iron and control the elevation of the polytetrafluoroethylene rubber bearing. Furthermore, the pad iron adopts a bowl-shaped structure, which is convenient for the adjustment block to deflect inside the pad iron and can limit the bottom of the steel column to prevent the steel column from sliding horizontally on the pad iron. Install the polytetrafluoroethylene rubber bearing on the pad iron to reduce the vibration response of the steel column, play a certain anti-seismic role and ensure the safety of the steel structure.

[0066] S4, hoisting the steel column, hoisting the prefabricated steel column on the embedded anchor bolt, making the leveling block abut against the washer, and installing jacks around the steel column to fine-tune the installation angle of the steel column. After the position of the steel column is adjusted, nuts are installed on the embedded anchor bolts, and concrete is poured again;

[0067] S5. Install the steel beam, cut off a part of the lower flange plate of the steel beam with the torque restraint unit installed, and install anti-torsion supports on both ends of the steel beam. After the steel beam is hoisted on the support plate, the steel beam is fixedly connected to the connecting ear plate by a bolt assembly;

[0068] S6. Weld the torsion-resistant bearing. After the steel beam is installed, slide the torsion-resistant bearing so that it abuts against the side wall of the steel column and fully weld the joint.

[0069] Specifically, in step S5, the tension strength of the steel strand needs to be pre-adjusted, and the ends of the steel strand need to be fixedly connected to the vertical support plate via a bolt assembly.

[0070] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0071] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A steel structure member node optimization structure, characterized in that: It comprises a steel column (3) and a steel beam (6), wherein a column foot anchoring unit is installed at the bottom of the steel column (3), and the outer peripheral surface of the column foot anchoring unit is coated with concrete; The side wall of the steel column (3) is fixedly connected to the steel beam (6) via an anti-torsion fastening unit; A torque restraining unit is installed on the web of the steel beam (6).

2. The steel structure member node optimization structure according to claim 1, characterized in that: The column foot anchoring unit comprises a bottom plate (14), and the bottom plate (14) is welded and installed on the lower end of the steel column (3); the upper surface of the bottom plate (14) is fixedly connected to the lower end of the reinforcing rib plate (2), and the side edge of the reinforcing rib plate (2) is fixedly connected to the outer peripheral surface of the steel column (3); A leveling block (13) is installed on the lower surface of the base plate (14); The base plate (14) is also provided with a through hole, in which a pre-buried anchor bolt assembly (1) is installed. The pre-buried anchor bolts of the pre-buried anchor bolt assembly (1) are cast in concrete, and the nuts of the pre-buried anchor bolt assembly (1) are in contact with the upper surface of the base plate (14).

3. The steel structure member node optimization structure according to claim 2, characterized in that: The leveling block (13) is made of arc steel plates welded into a cross shape.

4. The steel structure member node optimization structure according to claim 1, characterized in that: The anti-torsion fastening unit comprises a support plate (8), a support plate (9) and a connecting ear plate (15); a side wall at one end of the support plate (8) is fixedly connected to a side wall of the steel column (3); and a side wall of the support plate (9) is fixedly connected to a lower surface of the support plate (8) and a side wall of the steel column (3) respectively; The two connecting ear plates (15) are relatively fixedly mounted on the side walls of the steel column (3), and mounting through holes are provided on the connecting ear plates (15) and the webs of the steel beams (6), and the mounting through holes on the connecting ear plates (15) correspond to the positions of the mounting through holes on the webs of the steel beams (6); A bolt assembly is fixedly installed in the installation through hole.

5. The steel structure member node optimization structure according to claim 4, characterized in that: It also includes an anti-torsion support (4), wherein the anti-torsion support (4) is sleeved on the end of the steel beam (6); The anti-torsion support (4) comprises an upper flange fastening area (401), a web fastening area (402) and a lower flange fastening area (403), the lower end opening of the upper flange fastening area (401) is fixedly connected to the upper end opening of the web fastening area (402), and the lower end opening of the web fastening area (402) is fixedly connected to the upper end opening of the lower flange fastening area (403); The lower end opening of the lower flange plate fastening area (403) is fixedly connected to the upper surface of the support plate (8), the upper surface of the upper flange plate fastening area (401) is fixedly connected to the bottom of the connecting plate (5), the other side wall of the connecting plate (5) is flush with the side wall of the anti-torsion support (4), and the anti-torsion support (4) and the connecting plate (5) are both fixedly connected to the side wall of the steel column (3).

6. The steel structure member node optimization structure according to claim 1, characterized in that: The torque constraint unit comprises a cross-shaped reinforcement plate (7) and a vertical support plate (10), wherein the cross-shaped reinforcement plate (7) is fixedly mounted on the web in the middle of the steel beam (6); The vertical support plates (10) are located on both sides of the cross-shaped reinforcement plate (7), and the side walls of the vertical support plates (10) are respectively fixedly connected to the flange plates and web plates of the steel beam (6).

7. The steel structure member node optimization structure according to claim 6, characterized in that: It also includes a roller (12), which is movably mounted in the middle of the cross-shaped reinforcing plate (7), and the outer peripheral surface of the roller (12) is respectively in contact with two steel strands (11), and the two ends of the steel strands (11) are fixedly connected to the vertical support plate (10); An angular displacement sensor and a NB-IOT module are installed inside the rotating roller (12), and the angular displacement sensor is electrically connected to the central control room.

8. A method for optimizing the node optimization structure of a steel structure component, which is completed according to the node optimization structure of a steel structure component according to any one of claims 1 to 7, characterized in that: The steps include: S1. Excavate the steel column foundation. After the steel column foundation is excavated according to the design drawings and on-site construction conditions, place the embedded anchor bolts; S2. Install the embedded anchor bolts, pour concrete in the steel column foundation, and control the concrete elevation, the position of the embedded anchor bolts, and the height between the embedded anchor bolts and the top surface of the concrete while vibrating and compacting the concrete; S3. Install the washer iron. Place the washer iron in the middle of the embedded anchor bolt before the concrete is finally set. Install the polytetrafluoroethylene rubber bearing on the top of the washer iron and control the elevation of the polytetrafluoroethylene rubber bearing. S4, hoisting the steel column, hoisting the prefabricated steel column on the embedded anchor bolt, making the leveling block abut against the washer, and installing jacks around the steel column to fine-tune the installation angle of the steel column. After the position of the steel column is adjusted, nuts are installed on the embedded anchor bolts, and concrete is poured again; S5. Install the steel beam, cut off a part of the lower flange plate of the steel beam with the torque restraint unit installed, and install anti-torsion supports on both ends of the steel beam. After the steel beam is hoisted on the support plate, the steel beam is fixedly connected to the connecting ear plate by a bolt assembly; S6. Weld the torsion-resistant bearing. After the steel beam is installed, slide the torsion-resistant bearing so that it abuts against the side wall of the steel column and fully weld the joint.

9. The method for optimizing the node structure of a steel structure member according to claim 8, characterized in that: In the step S5, the tension strength of the steel strand needs to be pre-adjusted, and the ends of the steel strand are fixedly connected to the vertical support plate via a bolt assembly.

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