Reinforcing structure of steel structure house building

Abstract

The utility model relates to the technical field of building structure reinforcing, and discloses a reinforcing structure of a steel structure house building, which comprises a cross beam, one end of the cross beam is welded with a structural column, and the bottom of the cross beam is fixedly provided with an anchoring node assembly. According to the reinforcing structure of the steel structure house building, the anchoring node assemblies are installed on the inner sides of the nodes of the cross beams and the structural columns to form rigid connection with an original structure, the prestress zipper assemblies penetrate through the inner sides of the anchoring node assemblies, the structure generates reverse bending moment by tensioning the prestress zipper assemblies, and part of the original load effect is counteracted; prestress is transmitted to an original structure through a friction surface of the anchoring joint assembly to form a secondary stress system, the prestress is re-tightened in later maintenance by driving and matching the adjusting assembly through the adjusting driving device, active constraining force is applied to an original beam-column joint through the prestress inhaul cable system, and under the condition that the self weight of the structure is not obviously increased, the stress is reduced. And the tensile property of the high-strength steel is utilized to compensate the problem of insufficient bending resistance of the original structure.

Description

Technical Field

[0001] This utility model belongs to the field of building structure reinforcement technology, and in particular relates to a reinforcement structure for steel structure buildings. Background Technology

[0002] Steel structure buildings are widely used in industrial plants, large public buildings, and other fields due to their advantages such as fast construction speed, light weight, and good seismic performance. However, with the increase of service life or changes in function, the original steel structure may experience problems such as weld cracking, component buckling, and loosening of joints.

[0003] An existing patent (publication number: CN202321386672.1) discloses a reinforced steel structure for adding floors to old masonry houses, relating to the field of building reinforcement technology. It addresses the issue that some existing reinforced steel structures, when in use, use double nuts connected to the first chemical anchor bolt to fix the steel beam, but lack a limiting structure for the double nuts. If the double nuts loosen, it will lead to a decrease in the overall structural stability. The structure includes the original structural wall and a ring beam set on the original structural wall. A steel beam is set on the top of the ring beam. The original structural wall, ring beam, and steel beam are connected by anchor bolts. The outer surface of the anchor bolt is threaded with double nuts, which are set inside the steel beam. The steel beam has an installation groove inside that communicates with the outside.

[0004] In recent years, research on steel structure reinforcement technology at home and abroad has mainly focused on methods such as increasing the cross section, bonding steel plates, and adding supports. Although these technologies can improve the structural bearing capacity, they generally have limitations such as long construction period and affecting the building's functionality or appearance. Therefore, a reinforcement structure for steel structure buildings is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a reinforcement structure for steel structure buildings. It has the advantages of applying active restraint forces to the original beam-column joints through a prestressed cable system, and compensating for the insufficient bending resistance of the original structure by utilizing the tensile properties of high-strength steel without significantly increasing the self-weight of the structure. This solves the limitations mentioned in the aforementioned comparative documents, such as long construction periods and impact on the building's functionality or appearance.

[0006] To achieve the above objectives, this application provides the following technical solution: a reinforcement structure for a steel structure building, comprising a beam, a structural column welded to one end of the beam, an anchoring node assembly fixedly installed at the bottom of the beam, the anchoring node assemblies being symmetrically arranged on both sides of the structural column, a prestressed zipper assembly provided on the inner wall of the anchoring node assembly, an adjusting assembly sleeved on the outer surface of the prestressed zipper assembly, and an adjusting drive device fixedly installed on the top of the adjusting assembly.

[0007] The above scheme achieves a rigid connection between the anchoring node assembly and the original structure by installing the anchoring node assembly inside the node between the beam and the structural column. The prestressed cable assembly penetrates the inner side of the anchoring node assembly. By tensioning the prestressed cable assembly, a reverse bending moment is generated in the structure, offsetting part of the original load effect. The prestress is transferred to the original structure through the friction surface of the anchoring node assembly, forming a secondary stress system. The prestress is retightened during later maintenance by adjusting the drive device and the adjustment assembly. The prestressed cable system applies active constraint force to the original beam-column node. Without significantly increasing the self-weight of the structure, the tensile properties of high-strength steel are used to compensate for the insufficient bending resistance of the original structure.

[0008] Furthermore, the anchoring node assembly includes two anchoring clamping plates, each with a threaded hole inside, and an anchoring bolt is threaded into the threaded hole.

[0009] The above scheme involves symmetrically supporting the anchoring clamping plate at the connection node between the beam and the structural column, and fixing it with high-strength anchoring bolts through threaded holes. This allows the anchoring clamping plate to cover the original structural beam-column node, and the frictional force is transmitted through the pre-tightening force of the anchoring bolts.

[0010] Furthermore, the prestressed zipper assembly includes a steel strand, one end of which is fixedly installed with an anchor head, and the other end of which is provided with a lock.

[0011] The above scheme connects the anchor head at the end of the steel strand to the inside of one of the anchor clamping plates, allowing the steel strand to pass through the inside of both sets of anchor clamping plates. When adjusting the prestress of the steel strand, the stress is transmitted to the original structure through the friction surface of the anchor clamping plate.

[0012] Furthermore, the steel strand extends through the interior of the adjusting assembly, and the adjusting assembly is located at the center of the steel strand, below the crossbeam.

[0013] The above scheme allows the adjustment component to be driven to move laterally along the beam by activating the adjustment drive device, so as to gradually apply and lock prestress in the middle part of the steel strand, in order to achieve a reinforcement effect in conjunction with the through anchor clamping plate.

[0014] Furthermore, the adjusting assembly includes a threaded cylinder, an adjusting slider is fixedly connected to the top of the threaded cylinder, a connecting block is fixedly installed on the top of the adjusting slider, and the steel strand passes through the interior of the threaded cylinder.

[0015] The above method involves threading the steel strand through the inside of the threaded cylinder and adjusting the drive device in conjunction with the adjusting slider to move it, so that the middle part of the steel strand can be gradually tightened. After applying prestress to the middle part, it is gradually tightened.

[0016] Furthermore, the adjustment drive device includes a hydraulic jack, the output end of which is provided with a hydraulic rod, one end of which extends into the interior of a connecting block, and the interior of the connecting block is threaded with a first bolt.

[0017] The above scheme involves using a hydraulic jack to drive a hydraulic rod to extend and retract, thereby pushing an adjusting slider to slide. The adjusting slider then moves a threaded cylinder and applies prestress to the steel strand. After locking the strand, a reverse bending moment is generated in the structure, offsetting part of the original load effect. Stress adjustments are made based on monitoring data during use.

[0018] Furthermore, hinges are provided on both sides of the adjusting slider, and a second bolt is threaded onto the outer surface of the hinge.

[0019] The above solution uses a second bolt to fix the bottom hinge plate of the hinge to the bottom part of the adjusting slider, so that the adjusting slider can be flexibly flipped and clamped on the crossbeam. This combination ensures that all new components are within the original structural outline, thus maintaining the integrity of the building's appearance to the greatest extent.

[0020] Furthermore, the number of threaded holes and anchor bolts is provided in several.

[0021] The above scheme, through the setting of multiple threaded holes and anchor bolts, enables the bottom and top concealed positions of the anchor clamping plate to have rigid connection nodes with the beam and structural column, thereby enhancing the rigid connection strength at the nodes between the anchor clamping plate and the beam and structural column.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This type of steel structure building reinforcement structure forms a rigid connection with the original structure by installing anchoring node components inside the nodes between beams and structural columns. Prestressed cable assemblies penetrate the inner side of the anchoring node components. By tensioning the prestressed cable assemblies, the structure generates a reverse bending moment, offsetting part of the original load effect. The prestress is transferred to the original structure through the friction surface of the anchoring node components, forming a secondary stress system. The prestress is retightened during later maintenance by adjusting the drive device and the adjustment components. The prestressed cable system applies active constraint force to the original beam-column nodes. Without significantly increasing the self-weight of the structure, the tensile properties of high-strength steel are used to compensate for the insufficient bending resistance of the original structure. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0026] Figure 3 This is a schematic diagram of the structure of the hydraulic jack of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the steel strand of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the anchoring clamping plate of this utility model.

[0029] The markings in the diagram are as follows: 1. Horizontal beam; 2. Structural column; 3. Anchoring node assembly; 4. Prestressed cable tie assembly; 5. Adjustment assembly; 6. Adjustment drive device; 301. Anchoring clamp plate; 302. Threaded hole; 303. Anchor bolt; 401. Steel strand; 402. Anchor head; 403. Lock; 501. Threaded cylinder; 502. Adjusting slider; 503. Connecting block; 601. Hydraulic jack; 602. Hydraulic rod; 504. First bolt; 505. Hinge; 506. Second bolt. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1This embodiment describes a reinforcement structure for a steel structure building, including a beam 1. A structural column 2 is welded to one end of the beam 1. An anchoring node assembly 3 is fixedly installed at the bottom of the beam 1. The anchoring node assemblies 3 are symmetrically arranged on both sides of the structural column 2. A prestressed tension lock assembly 4 is provided on the inner wall of the anchoring node assembly 3. An adjustment assembly 5 is sleeved on the outer surface of the prestressed tension lock assembly 4. An adjustment drive device 6 is fixedly installed on the top of the adjustment assembly 5. By installing the anchoring node assembly 3 on the inner side of the node between the beam 1 and the structural column 2, a rigid connection is formed with the original structure. The prestressed cable assembly 4 penetrates the inner side of the anchoring node assembly 3. By tensioning the prestressed cable assembly 4, the structure generates a reverse bending moment, which offsets part of the original load effect. The prestress is transferred to the original structure through the friction surface of the anchoring node assembly 3, forming a secondary force system. The prestress is re-tightened in the later maintenance by adjusting the drive device 6 and coordinating with the adjustment assembly 5. The prestressed cable system applies active constraint force to the original beam-column joint. Without significantly increasing the self-weight of the structure, the tensile properties of high-strength steel are used to compensate for the insufficient bending resistance of the original structure.

[0032] Please see Figure 2 and Figure 5 The anchoring node assembly 3 includes two anchoring clamping plates 301. Each anchoring clamping plate 301 has a threaded hole 302 inside, and an anchoring bolt 303 is threaded into the threaded hole 302. The number of threaded holes 302 and anchoring bolts 303 is also multiple. The anchoring clamping plates 301 are symmetrically supported at the connection node between the beam 1 and the structural column 2. The high-strength anchoring bolts 303 pass through the threaded holes 302 to fix them, so that the anchoring clamping plates 301 cover the original beam-column node. The pre-tightening force of the anchoring bolts 303 generates frictional force transmission. The multiple threaded holes 302 and anchoring bolts 303 enable the bottom and top concealed positions of the anchoring clamping plates 301 to have rigid connection nodes with the beam 1 and the structural column 2, thereby enhancing the rigid connection strength between the anchoring clamping plates 301 and the beam 1 and the structural column 2 node.

[0033] Please see Figure 2 , Figure 3 and Figure 4The prestressed cable tie assembly 4 includes a steel strand 401, with an anchor head 402 fixedly installed at one end of the steel strand 401 and a lock 403 provided at the other end. The steel strand 401 passes through the interior of the adjusting assembly 5, and the adjusting assembly 5 is located at the center of the steel strand 401. The adjusting assembly 5 is located below the crossbeam 1. The adjusting assembly 5 includes a threaded cylinder 501, with an adjusting slider 502 fixedly connected to the top of the threaded cylinder 501. A connecting block 503 is fixedly installed on the top of the adjusting slider 502. The steel strand 401 passes through the interior of the threaded cylinder 501. By connecting the anchor head 402 at the end of the steel strand 401 to the anchor clamping plate 301 on one side... The inner side allows the steel strand 401 to pass through the inner side of the two sets of anchor clamping plates 301. When adjusting the prestress of the steel strand 401, it is transmitted to the original structure through the friction surface of the anchor clamping plate 301. By activating the adjustment drive device 6, the adjustment component 5 can be driven to move laterally along the crossbeam 1 to gradually apply and lock the prestress in the middle part of the steel strand 401, so as to achieve the reinforcement effect in conjunction with the through anchor clamping plate 301. By passing the steel strand 401 into the inside of the threaded cylinder 501, the adjustment drive device 6 is used in conjunction with the adjustment slider 502 to slide and move, so as to gradually tighten the middle part of the steel strand 401. After applying the prestress to the middle part, it is gradually tightened.

[0034] Please see Figure 3 and Figure 4 The adjustment drive device 6 includes a hydraulic jack 601. The output end of the hydraulic jack 601 is provided with a hydraulic rod 602. One end of the hydraulic rod 602 extends into the interior of the connecting block 503. The interior of the connecting block 503 is threaded with a first bolt 504. By activating the hydraulic jack 601, the hydraulic rod 602 is driven to extend and retract, thereby pushing the adjusting slider 502 to slide. The adjusting slider 502 drives the threaded cylinder 501 to move and provides prestress to the steel strand 401. After locking it, the structure generates a reverse bending moment to offset part of the original load effect. During use, stress adjustment is performed according to monitoring data.

[0035] This embodiment describes a reinforcement structure for a steel structure building. An anchoring plate 301 is symmetrically supported at the connection node between the beam 1 and the structural column 2. High-strength anchor bolts 303 are used to fix it through threaded holes 302. The combination of multiple threaded holes 302 and anchor bolts 303 ensures that the bottom and top concealed positions of the anchoring plate 301 have rigid connection nodes with both the beam 1 and the structural column 2. This allows the anchoring plate 301 to cover the original beam-column node. Frictional force is transmitted through the pre-tightening force of the anchor bolts 303. The anchoring head 402 at the end of the steel strand 401 is connected to the inner side of one side of the anchoring plate 301. A hydraulic jack 601 is used in conjunction with the anchoring plate. The hydraulic rod 602 pushes the adjusting slider 502 to slide and move the threaded cylinder 501 to provide prestress to the steel strand 401, so that the structure generates a reverse bending moment to offset part of the original load effect. During use, the stress is adjusted according to the monitoring data. The bottom hinge plate of the hinge 505 is fixed to the bottom part of the adjusting slider 502 by the second bolt 506, so that the adjusting slider 502 can flexibly flip and clamp on the beam 1. This combination ensures that all new components are located within the original structural outline, maintaining the integrity of the building appearance to the greatest extent. Without significantly increasing the self-weight of the structure, the tensile strength of high-strength steel is used to compensate for the insufficient bending resistance of the original structure.

[0036] The working principle of the above embodiments is as follows:

[0037] In use, the anchoring clamping plate 301 is fixed to the structural node between the beam 1 and the structural column 2 by the anchoring bolt 303 passing through the threaded hole 302. It covers the original structural beam-column node and is located inside the outline. The pre-tightening force of the anchoring bolt 303 generates frictional force transmission. After fixing, the hydraulic jack 601 is activated to drive the hydraulic rod 602 to extend and retract, thereby pushing the connecting block 503 to drive the adjusting slider 502 to slide along the inner side of the beam 1. At this time, the threaded cylinder 501 generates prestress in the middle of the steel strand 401, causing the steel strand 401 to generate a reverse bending moment in the structure, which offsets part of the original load effect. The prestress is transmitted to the original structure through the friction surface of the anchoring clamping plate 301, forming a secondary force system. The threaded cylinder 501 gradually tightens the middle of the steel strand 401 to apply and lock the prestress, so as to apply active constraint force to the original beam-column node.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application.

Claims

1. A reinforcement structure for a steel structure building, comprising a crossbeam (1), characterized in that: One end of the crossbeam (1) is welded with a structural column (2), and an anchoring node assembly (3) is fixedly installed at the bottom of the crossbeam (1). The anchoring node assembly (3) is symmetrically arranged on both sides of the structural column (2). A prestressed zipper assembly (4) is provided on the inner wall of the anchoring node assembly (3). An adjustment assembly (5) is sleeved on the outer surface of the prestressed zipper assembly (4). An adjustment drive device (6) is fixedly installed on the top of the adjustment assembly (5).

2. The reinforcement structure for a steel structure building according to claim 1, characterized in that: The anchoring node assembly (3) includes an anchoring clamping plate (301), and there are two anchoring clamping plates (301). The two anchoring clamping plates (301) are provided with threaded holes (302) inside, and anchoring bolts (303) are threaded inside the threaded holes (302).

3. The reinforcement structure for a steel structure building according to claim 1, characterized in that: The prestressed zipper assembly (4) includes a steel strand (401), one end of which is fixedly installed with an anchor head (402), and the other end of which is provided with a lock (403).

4. The reinforcement structure for a steel structure building according to claim 3, characterized in that: The steel strand (401) extends into the interior of the adjustment assembly (5), and the adjustment assembly (5) is located at the center of the steel strand (401) and below the crossbeam (1).

5. The reinforcement structure for a steel structure building according to claim 3, characterized in that: The adjustment assembly (5) includes a threaded cylinder (501), an adjustment slider (502) is fixedly connected to the top of the threaded cylinder (501), a connecting block (503) is fixedly installed on the top of the adjustment slider (502), and the steel strand (401) passes through the interior of the threaded cylinder (501).

6. The reinforcement structure for a steel structure building according to claim 5, characterized in that: The adjustment drive device (6) includes a hydraulic jack (601), the output end of which is provided with a hydraulic rod (602), one end of which extends into the interior of a connecting block (503), and the interior of the connecting block (503) is threaded with a first bolt (504).

7. The reinforcement structure for a steel structure building according to claim 5, characterized in that: The adjusting slider (502) is provided with hinges (505) on both sides, and the outer surface of the hinges (505) is threaded with a second bolt (506).

8. The reinforcement structure for a steel structure building according to claim 2, characterized in that: The number of threaded holes (302) and anchor bolts (303) is provided in several.

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