Shock insulation support embedded part

Abstract

The utility model discloses a shock insulation support embedded part which comprises an embedded steel plate and a plurality of anchor bars, each anchor bar comprises a connecting section, an anchoring section and a hook section, the anchoring sections are vertically arranged, the connecting sections are horizontally arranged and fixedly connected to the top ends of the anchoring sections, and the hook sections are fixedly connected to the bottom ends of the anchoring sections; a first connecting plate is fixedly connected to the middle of the bottom face of the embedded steel plate in the length direction, the anchor bars are evenly arranged on the two sides of the first connecting plate at intervals in the length direction of the first connecting plate, the end, away from the anchoring section, of the connecting section is fixedly connected with the first connecting plate, and the connecting section is fixedly connected with the bottom face of the embedded steel plate. The bottom ends of the anchor bars located on the same side of the first connecting plate are connected through connecting pieces. The connecting strength between the anchor bars and the pre-embedded steel plate can be enhanced, meanwhile, connection between the anchor bars can be enhanced, and therefore the overall bearing capacity of the pre-embedded part is improved, stress concentration is avoided, and the stability and reliability of the shock insulation support are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of seismic isolation bearing technology, and in particular to a seismic isolation bearing pre-embedded component. Background Technology

[0002] Seismic isolation bearings are devices used in building structures. Their main function is to reduce the damage caused by earthquakes by isolating the transmission of seismic energy to the upper structure. During installation, seismic isolation bearings are typically connected to the main building structure via embedded parts, including embedded plates and anchor bars. The embedded plates are connected to the seismic isolation bearings using bolts or similar methods, while the anchor bars are embedded deep into the concrete structure. Through bonding and anchoring with the concrete, the load borne by the seismic isolation bearings is reliably transferred to the foundation or structural components, ensuring the stability and reliability of the seismic isolation bearings during use.

[0003] Existing seismic isolation bearing embedded parts typically consist of an embedded steel plate and multiple anchor bars. The anchor bars are perpendicular to the embedded steel plate and evenly spaced, with their tops welded to the plate. For example, utility model patent CN205975991U discloses a steel plate embedded part, including a steel plate body and anchor bars. The steel plate body includes a first and a second plate surface arranged opposite each other. The steel plate body has multiple mounting grooves, each with its depth perpendicular to the first plate surface. Multiple anchor bars are installed one-to-one within the mounting grooves, and each anchor bar is fixedly connected to the steel plate body.

[0004] While the aforementioned utility model patent ensures a relatively firm bond between the steel plate embedded part and the concrete after fixation, and the position of the embedded part remains fixed during use, it has significant drawbacks in practical application: First, the welding contact area between the anchor bar and the embedded steel plate is small, leading to stress concentration at the limited welding points. This makes the welded area a weak point in the structure, and under repeated seismic loads, the initial cracks can easily propagate, causing the weld to break and the connection between the individual seismic isolation bearing and the main structure to fail. Second, the anchor bars are independent of each other and lack a connecting structure. Under complex loads, they cannot form an integrated load-bearing system. A single anchor bar may fail first due to local overload, while other anchor bars cannot quickly share the load, resulting in a decrease in the overall load-bearing capacity of the embedded part. This seriously affects the stability and reliability of the seismic isolation bearing, thereby weakening the seismic performance of the building structure.

[0005] Therefore, it is necessary to develop a seismic isolation bearing embedded part to address the above-mentioned defects. Utility Model Content

[0006] The purpose of this utility model is to provide a seismic isolation bearing embedded part that can enhance the connection strength between the anchor bar and the embedded steel plate, and at the same time enhance the connection between each anchor bar, thereby improving the overall load-bearing capacity of the embedded part, avoiding stress concentration, and ensuring the stability and reliability of the seismic isolation bearing.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This utility model discloses a seismic isolation bearing embedded component, comprising an embedded steel plate and several anchor bars. Each anchor bar includes a connecting section, an anchoring section, and a hook section. The anchoring section is vertically arranged, the connecting section is horizontally arranged and fixedly connected to the top of the anchoring section, and the hook section is fixedly connected to the bottom of the anchoring section. A first connecting plate is fixedly connected to the middle of the bottom surface of the embedded steel plate along its length direction. Several anchor bars are evenly spaced on both sides of the first connecting plate along its length direction. The end of the connecting section away from the anchoring section is fixedly connected to the first connecting plate, and the connecting section is fixedly connected to the bottom surface of the embedded steel plate. The bottom ends of several anchor bars located on the same side of the first connecting plate are connected by connectors.

[0009] Furthermore, the connecting section of the anchor bar is provided with a first threaded section at its end, and a plurality of threaded holes adapted to the first threaded section are evenly spaced on both sides of the first connecting plate. The connecting section is threadedly connected to the threaded hole of the first connecting plate through the first threaded section.

[0010] Furthermore, the threaded holes on one side of the first connecting plate are spaced apart from the threaded holes on the other side.

[0011] Furthermore, the anchor bar is specifically made of threaded steel, and the connecting section and the hook section are formed by annealing and bending the anchor bar.

[0012] Furthermore, the connector includes a second connecting plate, on which a plurality of through holes are spaced apart, and the top ends of the hook segments of a plurality of anchor bars located on the same side of the first connecting plate pass through the through holes.

[0013] Furthermore, a second threaded section is provided at the top of the hook section, and a nut is threaded onto the second threaded section.

[0014] Furthermore, the outer wall of the connecting section is welded and fixed to the bottom surface of the embedded steel plate, and the side wall of the first connecting plate is welded and fixed to the bottom surface of the embedded steel plate.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] This invention, by setting a connecting section on the anchor bar and fixing a first connecting plate to the pre-embedded steel plate, makes the connection between the anchor bar and the pre-embedded steel plate not limited to spot welding at the top, but through the connection between the connecting section of the anchor bar and the first connecting plate and the bottom surface of the pre-embedded steel plate. This increases the contact area, disperses stress, reduces stress concentration, lowers the risk of weld point fracture under repeated seismic loads, and improves the reliability of the connection between the seismic isolation bearing and the main structure.

[0017] Meanwhile, by setting connectors at the bottom ends of several anchor bars located on the same side of the first connecting plate, the bottom ends of the anchor bars are connected, enabling the anchor bars to work together. When a single anchor bar is subjected to local overload, the load can be transferred to other anchor bars through the connectors, so that the anchor bars can share the load together, avoiding the failure of a single anchor bar due to local overload, thereby improving the overall load-bearing capacity of the embedded parts. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the embedded part of the seismic isolation bearing of this utility model;

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the embedded part of the seismic isolation bearing of this utility model from another perspective;

[0021] Figure 3 This is a three-dimensional structural diagram of the anchor bar of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the first connecting plate of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the second connecting plate of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Embedded steel plate; 2. Anchor bar; 201. Connecting section; 202. Anchoring section; 203. Hook section; 3. First connecting plate; 4. First threaded section; 5. Threaded hole; 6. Second connecting plate; 7. Through hole; 8. Second threaded section; 9. Nut. Detailed Implementation

[0025] The core of this utility model is to provide a seismic isolation bearing embedded part that can enhance the connection strength between the anchor bar and the embedded steel plate, and at the same time enhance the connection between each anchor bar, thereby improving the overall load-bearing capacity of the embedded part, avoiding stress concentration, and ensuring the stability and reliability of the seismic isolation bearing.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In one specific embodiment of this utility model, such as Figures 1-3 As shown, a seismic isolation bearing embedded component includes an embedded steel plate 1 and several anchor bars 2. Each anchor bar 2 includes a connecting section 201, an anchoring section 202, and a hook section 203. The anchoring section 202 is vertically positioned, the connecting section 201 is horizontally positioned and fixedly connected to the top of the anchoring section 202, and the hook section 203 is fixedly connected to the bottom of the anchoring section 202. A first connecting plate 3, made of stainless steel, is fixedly connected to the middle of the bottom surface of the embedded steel plate 1 along its length. Several anchor bars 2 are evenly spaced on both sides of the first connecting plate 3 along its length. The end of the connecting section 201 furthest from the anchoring section 202 is fixedly connected to the first connecting plate 3, and the connecting section 201 is fixedly connected to the bottom surface of the embedded steel plate 1. The bottom ends of several anchor bars 2 located on the same side of the first connecting plate 3 are connected by connectors.

[0029] In one specific embodiment of this utility model, such as Figures 2-4 As shown, the end of the connecting section 201 of the anchor bar 2 is provided with a first threaded section 4, and a number of threaded holes 5 that are adapted to the first threaded section 4 are evenly spaced on both sides of the first connecting plate 3. The connecting section 201 is threadedly connected to the threaded hole 5 of the first connecting plate 3 through the first threaded section 4.

[0030] Specifically, the threaded holes 5 on one side of the first connecting plate 3 are spaced apart from the threaded holes 5 on the other side.

[0031] This staggered arrangement of the anchor bars 2 on both sides of the first connecting plate 3 allows for a more even distribution of loads from different directions on the embedded part. When subjected to horizontal seismic forces, the staggered anchor bars 2 resist the forces from different angles, preventing excessive stress on one side due to over-concentration of the anchor bars on one side. This distribution further optimizes the stress performance of the embedded part, improving its stability and load-bearing capacity, enabling it to better adapt to complex stress environments.

[0032] In a specific embodiment of this utility model, the anchor bar 2 is specifically made of threaded steel, and the connecting section 201 and the hook section 203 are formed by annealing and bending the anchor bar 2.

[0033] Threaded steel bars possess high strength and excellent bonding properties. The threaded shape on their surface increases friction and mechanical interlocking force with concrete, allowing the anchor bar 2 to bond better with the concrete. During concrete setting, the threads on the surface of the threaded steel bar embed into the concrete, forming a mortise-and-tenon-like structure, greatly improving the anchoring effect of the anchor bar 2 in the concrete. In the annealed state, the anchor bar 2 is bent into the required shape for the connecting section 201 and the hook section 203. This ensures that the anchor bar 2 will not crack or break due to excessive stress during processing, and also ensures that the finished anchor bar 2 meets the structural requirements of the embedded parts.

[0034] In one specific embodiment of this utility model, such as Figure 1 , Figure 3 and Figure 5 As shown, the connector includes a second connecting plate 6, on which a plurality of through holes 7 are spaced apart. The top ends of the hook sections 203 of a plurality of anchor bars 2 located on the same side of the first connecting plate 3 pass through the through holes 7. The second connecting plate 6 is made of stainless steel.

[0035] By passing the top of the hook section 203 of the anchor bar 2 through the through hole 7 on the second connecting plate 6, the anchor bars 2 can be connected to each other to form a whole. In actual operation, when a certain anchor bar 2 is subjected to a large tensile or compressive force, the other anchor bars 2 can share part of the load borne by the anchor bar 2 through the transmission of the second connecting plate 6. During an earthquake, the seismic isolation bearing will be subjected to complex external forces from different directions. At this time, the anchor bars 2 connected together by the second connecting plate 6 can jointly resist these external forces, preventing a single anchor bar 2 from failing due to excessive force, thereby ensuring the overall stability and load-bearing capacity of the embedded parts.

[0036] Specifically, the top of the hook section 203 is provided with a second threaded section 8, and a nut 9 is threadedly connected to the second threaded section 8.

[0037] After the top end of the hook section 203 of the anchor bar 2 passes through the through hole 7 of the second connecting plate 6, the nut 9 is screwed onto the second threaded section 8, and by tightening the nut 9, the nut 9 is made to fit tightly against the second connecting plate 6. This connection method can prevent the anchor bar 2 from coming out of the through hole 7 of the second connecting plate 6 during use, ensuring the reliability of the connector.

[0038] In one specific embodiment of this utility model, the outer wall of the connecting section 201 is welded and fixed to the bottom surface of the embedded steel plate 1, and the side wall of the first connecting plate 3 is welded and fixed to the bottom surface of the embedded steel plate 1.

[0039] By welding the outer wall of the connecting section 201 to the bottom surface of the embedded steel plate 1, the connection strength between the anchor bar 2 and the embedded steel plate 1 can be further enhanced. The welded point can withstand greater tensile and shear forces, making the anchor bar 2 more reliable in transmitting loads. Similarly, welding the side wall of the first connecting plate 3 to the bottom surface of the embedded steel plate 1 ensures that the first connecting plate 3 and the embedded steel plate 1 form a solid whole.

[0040] The working principle of this utility model is as follows: During installation, the anchor bar 2 is first connected to the first connecting plate 3. The first threaded section 4 at the end of the connecting section 201 of the anchor bar 2 is aligned with the threaded holes 5 on both sides of the first connecting plate 3. By rotating the anchor bar 2, the first threaded section 4 is screwed into the threaded holes 5. Since the threaded holes 5 on one side of the first connecting plate 3 are spaced apart from those on the other side, the anchor bars 2 are staggered on both sides of the first connecting plate 3. After completing the threaded connection, the outer wall of the connecting section 201 is welded and fixed to the bottom surface of the embedded steel plate 1. Simultaneously, the side wall of the first connecting plate 3 is welded and fixed to the bottom surface of the embedded steel plate 1, thus completing the initial connection between the anchor bar 2, the embedded steel plate 1, and the first connecting plate 3. Next, the bottom end of the anchor bar 2 on the same side is connected. The top of the hook section 203 of the anchor bar 2 located on the same side of the first connecting plate 3 is sequentially passed through the through hole 7 on the second connecting plate 6. Then, the nut 9 is screwed onto the second threaded section 8 at the top of the hook section 203 and tightened to make the anchor bar 2 tightly connected to the second connecting plate 6, thus connecting the anchor bars 2 on the same side into a whole through the second connecting plate 6. Finally, the embedded part is installed in the designated position of the building structure. After the formwork is erected at the installation position, concrete is poured. During the concrete pouring process, the anchoring section 202 of the anchor bar 2 penetrates into the concrete. Because the anchor bar 2 is made of threaded steel and has undergone annealing and bending treatment, it has good bonding performance and anchoring effect with the concrete. As the concrete solidifies, the embedded part is tightly bonded to the concrete into a whole.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0042] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A type of embedded component for seismic isolation bearings, characterized in that: The system includes a pre-embedded steel plate (1) and several anchor bars (2). Each anchor bar (2) includes a connecting section (201), an anchoring section (202), and a hook section (203). The anchoring section (202) is vertically arranged, the connecting section (201) is horizontally arranged and fixedly connected to the top of the anchoring section (202), and the hook section (203) is fixedly connected to the bottom of the anchoring section (202). A first connecting plate (3) is fixedly connected to the middle of the bottom surface of the pre-embedded steel plate (1) along its length direction. Several anchor bars (2) are evenly spaced on both sides of the first connecting plate (3) along its length direction. The end of the connecting section (201) away from the anchoring section (202) is fixedly connected to the first connecting plate (3), and the connecting section (201) is fixedly connected to the bottom surface of the pre-embedded steel plate (1). The bottom ends of several anchor bars (2) located on the same side of the first connecting plate (3) are connected by connectors.

2. The seismic isolation bearing embedded part according to claim 1, characterized in that: The anchor bar (2) has a first threaded section (4) at the end of the connecting section (201). The first connecting plate (3) has a plurality of threaded holes (5) that are adapted to the first threaded section (4) evenly spaced on both sides. The connecting section (201) is threadedly connected to the threaded hole (5) of the first connecting plate (3) through the first threaded section (4).

3. The embedded part of the seismic isolation bearing according to claim 2, characterized in that: The threaded hole (5) on one side of the first connecting plate (3) is spaced apart from the threaded hole (5) on the other side.

4. The embedded part of the seismic isolation bearing according to claim 1, characterized in that: The anchor bar (2) is specifically made of threaded steel, and the connecting section (201) and the hook section (203) are formed by annealing and bending the anchor bar (2).

5. The embedded part of the seismic isolation bearing according to claim 1, characterized in that: The connector includes a second connecting plate (6), on which a plurality of through holes (7) are spaced apart, and the top ends of the hook segments (203) of a plurality of anchor bars (2) located on the same side of the first connecting plate (3) penetrate through the through holes (7).

6. The embedded part of the seismic isolation bearing according to claim 5, characterized in that: The top end of the hook section (203) is provided with a second threaded section (8), and a nut (9) is threaded onto the second threaded section (8).

7. The embedded part of the seismic isolation bearing according to claim 1, characterized in that: The outer wall of the connecting section (201) is welded and fixed to the bottom surface of the embedded steel plate (1), and the side wall of the first connecting plate (3) is welded and fixed to the bottom surface of the embedded steel plate (1).

Images