Welding stud type steel reinforced concrete shock insulation column

Abstract

The utility model relates to the technical field of buildings, in particular to a welded stud type steel reinforced concrete shock insulation column which comprises a bottom foundation, a shock insulation support, a reinforced concrete column and section steel, the bottom foundation is poured through concrete, and one face of the bottom foundation is fixedly connected with the shock insulation support; the face, away from the bottom foundation, of the shock insulation support is fixedly connected with the reinforced concrete column. The profile steel is embedded in the reinforced concrete column, and studs are welded to the periphery of the outer wall of the profile steel, located at the flange position of the profile steel and the center line position of a web of the profile steel respectively and evenly arranged at intervals in the length direction of the profile steel. According to the welded stud type steel reinforced concrete shock insulation column, the connection between the section steel and the concrete can be effectively enhanced, the torsional property is improved, and the shock insulation effect of the structure can be improved.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a welded studded steel-concrete seismic isolation column. Background Technology

[0002] In recent years, steel-concrete composite columns have been widely used due to their excellent mechanical properties. However, due to the large surface area and smooth surface of steel, the bond strength between steel and concrete is weak, and relative slippage easily occurs at the interface under load.

[0003] Under seismic loading, components such as frames and corner columns are often in a state of combined torsion. The presence of torque and the relative slippage between steel and concrete will significantly reduce the seismic performance of steel-concrete composite columns. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a welded studded steel-concrete seismic isolation column, which effectively enhances the connection between the steel and concrete, improves torsional resistance, and enhances the seismic isolation effect of the structure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A welded studded steel-concrete seismic isolation column includes a base foundation, seismic isolation bearings, a reinforced concrete column, and steel profiles.

[0007] The bottom foundation is constructed by pouring concrete, and one side of the bottom foundation is fixedly connected to the seismic isolation bearing.

[0008] The side of the seismic isolation bearing away from the bottom foundation is fixedly connected to the reinforced concrete column;

[0009] The steel section is embedded in the reinforced concrete column, and studs are welded around the outer wall of the steel section. The studs are located at the flange of the steel section and at the center line of the web of the steel section, and the studs are evenly spaced along the length of the steel section.

[0010] Furthermore, a first connecting steel plate is provided at the bottom of the reinforced concrete column. One side of the first connecting steel plate is welded to the steel section, and the other side is connected to the seismic isolation bearing.

[0011] Furthermore, the seismic isolation bearing includes a lower connecting plate, an upper connecting plate, and a seismic isolation layer, with both sides of the seismic isolation layer being fixedly connected to the lower connecting plate and the upper connecting plate, respectively.

[0012] The bottom foundation has a first sleeve embedded in it, and the lower connecting plate is provided with a first high-strength bolt. The first high-strength bolt is sequentially passed through the lower connecting plate and then threaded into the first sleeve.

[0013] The reinforced concrete column is pre-embedded with a second sleeve, and the upper connecting plate is provided with a second high-strength bolt. The second high-strength bolt passes through the upper connecting plate and the first connecting steel plate and is then threaded into the second sleeve.

[0014] Furthermore, a second connecting steel plate is provided between the bottom foundation and the lower connecting plate. The second connecting steel plate is welded to the first sleeve, and the second connecting steel plate is provided with a reserved hole communicating with the first sleeve, so that the first high-strength bolt can be inserted into the second connecting steel plate.

[0015] Furthermore, the vibration isolation layer includes a lead core, a lower sealing plate, an upper sealing plate, and a protective outer layer.

[0016] The lead cores are fitted with vibration isolation pads, each vibration isolation pad comprising an inner steel plate and an inner rubber, with the inner steel plate and the inner rubber being stacked alternately. The two ends of the lead cores are respectively fixedly connected to the lower sealing plate and the upper sealing plate. The lower sealing plate is fixedly connected to the lower connecting plate, and the upper sealing plate is fixedly connected to the upper connecting plate. The protective outer layer covers the vibration isolation pads and is fixedly connected to the outer walls of the inner steel plate and the inner rubber of the lower sealing plate and the upper sealing plate, respectively.

[0017] Furthermore, a first anchoring bar is fixedly provided at the end of the first sleeve away from the first high-strength bolt, and a second anchoring bar is fixedly provided at the end of the second sleeve away from the second high-strength bolt, and both the first anchoring bar and the second anchoring bar are L-shaped structures.

[0018] The beneficial effects of this utility model are:

[0019] 1. By installing studs in the steel profile, the connection between the steel and concrete is effectively enhanced, allowing the components to work together better under torsional loads, thereby improving the overall torsional resistance. The torsional cracks in the reinforced concrete column after welding studs are more uniform and denser than those in ordinary steel-concrete composite specimens. As the load and torsional angle increase, the reinforcing bars, steel profile, and studs yield successively, and the specimen exhibits good ductility upon failure. The bottom foundation is connected to the reinforced concrete column via seismic isolation bearings to separate the superstructure from the substructure, exhibiting high vertical bearing capacity, low compressive deformation, and large horizontal deformation capacity, and achieving elastic recovery after an earthquake, meeting the goals of high safety and low cost in construction. This invention effectively enhances the connection between the steel profile and concrete, improves torsional resistance, and enhances the seismic isolation effect of the structure.

[0020] 2. By connecting the seismic isolation bearing to the foundation and reinforced concrete column on both sides using high-strength bolts and sleeves, the stiffness and strength of the foundation can be improved, preventing instability or tearing, effectively fulfilling the seismic isolation task of the structure, and reducing the possibility of brittle failure, thus improving the structural safety. Anchor bars embedded in the foundation and reinforced concrete column further increase the connection strength and stability between the seismic isolation bearing and these components. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of a welded studded steel-concrete seismic isolation column according to a preferred embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the bottom foundation structure of a welded studded steel-concrete seismic isolation column according to a preferred embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of a reinforced concrete column structure of a welded studded steel-concrete seismic isolation column according to a preferred embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the seismic isolation support structure of a welded studded steel-concrete seismic isolation column according to a preferred embodiment of the present invention.

[0025] In the diagram, 1-bottom foundation, 101-first sleeve, 11-second connecting steel plate, 2-seismic isolation bearing, 21-lower connecting plate, 22-upper connecting plate, 23-seismic isolation layer, 231-lead core, 232-lower sealing plate, 233-upper sealing plate, 234-outer protective layer, 235-inner steel plate, 236-inner rubber, 3-reinforced concrete column, 301-second sleeve, 31-first connecting steel plate, 4-section steel, 41-stud, 51-first high-strength bolt, 52-second high-strength bolt, 61-first anchor bar, 62-second anchor bar. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. 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] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Please participate at the same time Figures 1 to 4 The welded studded steel-concrete seismic isolation column of the present invention, according to a preferred embodiment, includes a bottom foundation 1, a seismic isolation support 2, a reinforced concrete column 3, and a steel section 4.

[0030] The bottom foundation 1 is constructed by pouring concrete, and one side of the bottom foundation 1 is fixedly connected to the seismic isolation bearing 2; in this embodiment, the bottom foundation 1 is pre-embedded with steel bars.

[0031] The side of the seismic isolation bearing 2 away from the bottom foundation 1 is fixedly connected to the reinforced concrete column 3;

[0032] like Figure 1 The steel section 4 is embedded in the reinforced concrete column 3, and studs 41 are welded around the outer wall of the steel section 4. The studs 41 are located at the flange of the steel section 4 and at the center line of the web of the steel section 4, and the studs 41 are evenly spaced along the length of the steel section 4.

[0033] like Figure 2 As shown, a first connecting steel plate 31 is provided at the bottom of the reinforced concrete column 3. One side of the first connecting steel plate 31 is welded to the steel section 4, and the other side is connected to the seismic isolation bearing 2.

[0034] By installing studs 41 on the steel section 4, the connection between the steel section and the concrete is effectively enhanced, allowing the components to work together better under torsional loads, thereby improving the overall torsional resistance. The torsional diagonal cracks in the reinforced concrete column 3 after welding studs 41 are more uniform and denser than those in ordinary steel-concrete specimens. As the load and torsional angle increase, the reinforcing bars, steel section, and studs yield successively, and the specimens exhibit good ductility upon failure. The bottom foundation 1 is connected to the reinforced concrete column 3 through seismic isolation bearings 2 to separate the superstructure from the substructure. It has high vertical bearing capacity, small compressive deformation, and large horizontal deformation capacity, and can achieve elastic recovery after an earthquake, meeting the building goals of high safety and low cost.

[0035] Because the surface of the steel section 4 is smooth, its bond strength with concrete is weaker than that between deformed steel bars and concrete. In this embodiment, by installing studs 41 on the steel section 4, the synergistic working ability between the steel section and concrete is enhanced, thereby improving the torsional strength of the component. This embodiment effectively strengthens the connection between the steel section and concrete, improves torsional performance, and also enhances the seismic isolation effect of the structure.

[0036] like Figure 1 and Figure 2 As shown, the seismic isolation bearing 2 includes a lower connecting plate 21, an upper connecting plate 22 and a seismic isolation layer 23, with the two sides of the seismic isolation layer 23 being fixedly connected to the lower connecting plate 21 and the upper connecting plate 22 respectively.

[0037] The bottom foundation 1 is pre-embedded with a first sleeve 101, and the lower connecting plate 21 is provided with a first high-strength bolt 51. The first high-strength bolt 51 is sequentially passed through the lower connecting plate 21 and then threaded into the first sleeve 101.

[0038] The reinforced concrete column 3 has a second sleeve 301 pre-embedded in it, and the upper connecting plate 22 is provided with a second high-strength bolt 52. The second high-strength bolt 52 passes through the upper connecting plate 22 and the first connecting steel plate 31 and is then threaded into the second sleeve 301. In this embodiment, the second sleeve 301 is welded to the first connecting steel plate 31.

[0039] By connecting the seismic isolation bearing 2 to the bottom foundation 1 and the reinforced concrete column 3 on both sides through high-strength bolts and sleeves, the stiffness and strength of the bottom foundation 1 can be improved, avoiding instability or tearing, effectively completing the seismic isolation task of the structure, while reducing the possibility of brittle failure of the structure and improving the safety of the structure.

[0040] like Figure 2 As shown, the first sleeve 101 is fixedly provided with a first anchoring bar 61 at the end away from the first high-strength bolt 51, and the second sleeve 301 is fixedly provided with a second anchoring bar 62 at the end away from the second high-strength bolt 52. Both the first anchoring bar 61 and the second anchoring bar 62 are L-shaped structures.

[0041] The first anchor bar 61 is welded to the first sleeve 101, and the second anchor bar 62 is welded to the second sleeve 301. The anchor bars are embedded in the bottom foundation 1 and the reinforced concrete column 3, which can further increase the connection strength and connection stability between the seismic isolation bearing 2 and the bottom foundation 1 and the reinforced concrete column 3.

[0042] like Figure 2 As shown, a second connecting steel plate 11 is provided between the bottom foundation 1 and the lower connecting plate 21. The second connecting steel plate 11 is welded to the first sleeve 101, and the second connecting steel plate 11 is provided with a reserved hole communicating with the first sleeve 101, so that the first high-strength bolt 51 can pass through the second connecting steel plate 11. Under the action of the second connecting steel plate 11, the connection stiffness and connection strength between the bottom foundation 1 and the seismic isolation support 2 can be improved.

[0043] The connection method of pre-embedded anchor bars and sleeves enhances the overall stability of the structure. The seismic isolation bearing 2 can separate the upper structure from the lower structure by setting a seismic isolation layer between the underground structure and the above-ground structure, so as to achieve the goal of high safety and low cost and improve the seismic isolation effect of the structure.

[0044] like Figure 4 As shown, the vibration isolation layer 23 includes a lead core 231, a lower sealing plate 232, an upper sealing plate 233, and a protective outer layer 234.

[0045] A vibration isolation pad is alternately fitted with lead cores 231. The vibration isolation pad includes an inner steel plate 235 and an inner rubber 236, which are stacked alternately. Both ends of the lead cores 231 are fixedly connected to a lower sealing plate 232 and an upper sealing plate 233, respectively. The lower sealing plate 232 is fixedly connected to a lower connecting plate 21, and the upper sealing plate 233 is fixedly connected to an upper connecting plate 22. A protective outer layer 234 covers the vibration isolation pad and is fixedly connected to the outer walls of the inner steel plates 235 and inner rubber 236 of the lower and upper sealing plates 232 and 233, respectively. In this embodiment, both sides of the vibration isolation pad are inner rubber 236, and the inner rubber 236 is connected to the corresponding lower and upper sealing plates 232 and 233.

[0046] The fabrication process of the welded studded steel-concrete seismic isolation column in this embodiment is as follows:

[0047] S1. Weld studs 41 to the flanges of the steel section 4 and the centerline of the web of the steel section 4, and the studs 41 are evenly spaced along the length of the steel section 4. Weld one end of the second sleeve 301 to the first connecting steel plate 31, and the first connecting steel plate 31 has a reserved installation hole communicating with the second sleeve 301. Weld the other end of the second sleeve 301 to the second anchor bar 62. Set the first connecting steel plate 31 at the bottom of the mold, and precast the reinforced concrete column 3 by pouring the mold.

[0048] S2. Weld one end of the first sleeve 101 to the second connecting steel plate 11, and the second connecting steel plate 11 is reserved with an installation hole communicating with the first sleeve 101. Weld the other end of the first sleeve 101 to the first anchor bar 61. Weld the second connecting steel plate 11 to the reinforcing bar of the bottom foundation 1. Cast the bottom foundation 1 through the mold.

[0049] S3. After passing the first high-strength bolt 51 through the lower connecting plate 21 and the second connecting steel plate 11, the bolt is threaded into the first sleeve 101 to fix the seismic isolation support 2 on the bottom foundation 1.

[0050] S4. The second high-strength bolt 52 is sequentially inserted through the upper connecting plate 22 and the first connecting steel plate 31 and then threaded into the second sleeve 301 to fix the connecting steel plate 4 on the seismic isolation support 2.

Claims

1. A welded studded steel-concrete seismic isolation column, characterized in that, Includes the bottom foundation (1), seismic isolation bearings (2), reinforced concrete columns (3), and steel sections (4). The bottom foundation (1) is constructed by pouring concrete, and one side of the bottom foundation (1) is fixedly connected to the seismic isolation bearing (2); The side of the seismic isolation bearing (2) away from the bottom foundation (1) is fixedly connected to the reinforced concrete column (3); The steel section (4) is embedded in the reinforced concrete column (3), and studs (41) are welded around the outer wall of the steel section (4). The studs (41) are located at the flange of the steel section (4) and at the center line of the web of the steel section (4), and the studs (41) are evenly spaced along the length of the steel section (4).

2. The welded studded steel-concrete seismic isolation column according to claim 1, characterized in that: The bottom of the reinforced concrete column (3) is provided with a first connecting steel plate (31), one side of which is welded to the steel section (4), and the other side is connected to the seismic isolation support (2).

3. A welded studded steel-concrete seismic isolation column according to claim 2, characterized in that: The seismic isolation bearing (2) includes a lower connecting plate (21), an upper connecting plate (22), and a seismic isolation layer (23). The two sides of the seismic isolation layer (23) are fixedly connected to the lower connecting plate (21) and the upper connecting plate (22), respectively. The bottom foundation (1) is pre-embedded with a first sleeve (101), and the lower connecting plate (21) is provided with a first high-strength bolt (51). The first high-strength bolt (51) is sequentially passed through the lower connecting plate (21) and then threaded into the first sleeve (101). The reinforced concrete column (3) is pre-embedded with a second sleeve (301), and the upper connecting plate (22) is provided with a second high-strength bolt (52). The second high-strength bolt (52) passes through the upper connecting plate (22) and the first connecting steel plate (31) and is then threaded into the second sleeve (301).

4. A welded studded steel-concrete seismic isolation column according to claim 3, characterized in that: A second connecting steel plate (11) is provided between the bottom foundation (1) and the lower connecting plate (21). The second connecting steel plate (11) is welded to the first sleeve (101), and the second connecting steel plate (11) is provided with a reserved hole communicating with the first sleeve (101) so that the first high-strength bolt (51) can be inserted into the second connecting steel plate (11).

5. A welded studded steel-concrete seismic isolation column according to claim 3, characterized in that: The vibration isolation layer (23) includes a lead core (231), a lower sealing plate (232), an upper sealing plate (233), and a protective outer layer (234). The lead core (231) is fitted with vibration isolation pads in alternating layers. Each vibration isolation pad includes an inner steel plate (235) and an inner rubber (236), with the inner steel plate (235) and the inner rubber (236) stacked alternately. Both ends of the lead core (231) are fixedly connected to the lower sealing plate (232) and the upper sealing plate (233), respectively. The lower sealing plate (232) is fixedly connected to the lower connecting plate (21), and the upper sealing plate (233) is fixedly connected to the upper connecting plate (22). The protective outer layer (234) covers the vibration isolation pads and is fixedly connected to the outer walls of the lower sealing plate (232), the upper sealing plate (233), the inner steel plate (235), and the inner rubber (236), respectively.

6. A welded studded steel-concrete seismic isolation column according to claim 3, characterized in that: The first sleeve (101) is fixedly provided with a first anchor bar (61) at the end away from the first high-strength bolt (51), and the second sleeve (301) is fixedly provided with a second anchor bar (62) at the end away from the second high-strength bolt (52), and both the first anchor bar (61) and the second anchor bar (62) are L-shaped structures.

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