Shock isolation device for building construction

Abstract

The utility model belongs to the technical field of building shock insulation, and particularly relates to a shock insulation device for building construction. Comprising an upper connecting plate, a lower connecting plate is arranged under the upper connecting plate, rubber layers are arranged between the upper connecting plate and the lower connecting plate, a steel plate is fixed between every two adjacent rubber layers, center holes are formed in the centers of the rubber layers and the steel plates, and the same lead core column penetrates through the center holes of all the rubber layers and the steel plates; the rubber layer and the upper surface and the lower surface of the steel plate are of a corrugated cambered surface structure, and corrugated cambered surfaces are sequentially diffused from the center holes of the rubber layer and the steel plate from inside to outside. The upper surfaces and the lower surfaces of the rubber layer and the steel plate are cambered surfaces, so that the contact area between the rubber layer and the steel plate is increased, the shock resistance is improved, the rubber layer can better absorb shaking force transmitted from the side direction, a certain reset capacity is achieved, the burden of independently absorbing energy and resetting of the lead core column is relieved, and the service life of the lead core column is prolonged. Therefore, the service life of the lead core column is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of building seismic isolation, in particular to a seismic isolation device for building construction. Background Art

[0002] With the continuous development of modern construction technology, building safety, especially earthquake resistance, is receiving increasing attention. During natural disasters such as earthquakes, damage to buildings often results in significant loss of life and property. Currently, a wide variety of seismic isolation devices are used in building construction, but some shortcomings remain. Existing seismic isolation devices have limited effectiveness in strong earthquakes and cannot effectively protect buildings from damage.

[0003] Isolation bearings refer to supporting devices installed in structures to meet seismic isolation requirements. They add an isolation layer between the superstructure and the foundation, and install rubber isolation bearings to act as a soft connection with the ground. This technology can offset about 80% of the energy of an earthquake. When the lead core bearing in the isolation bearing is sheared, it absorbs energy through plastic deformation. After an earthquake, the lead core column automatically returns to its original position through dynamic recovery and recrystallization processes, as well as the shear tension of the rubber. Since the rubber layer and steel plate of the isolation bearing are planar structures, when an earthquake occurs, the isolation bearing has a poor ability to resist lateral vibrations, and more energy is absorbed by the lead core column, which can easily shorten the service life of the lead core column. Utility Model Content

[0004] The purpose of the utility model is to provide a seismic isolation device for building construction, which can improve its ability to resist lateral vibration to a certain extent and extend the service life of the lead core column.

[0005] The seismic isolation device for building construction includes an upper connecting plate, a lower connecting plate is arranged directly below the upper connecting plate, and several layers of rubber layers are arranged between the upper connecting plate and the lower connecting plate, distributed sequentially from bottom to top. A steel plate is fixed between each two adjacent rubber layers, and a center hole is opened at the center of each rubber layer and the steel plate. The same lead core column is installed in the center hole of all rubber layers and steel plates; the upper end of the lead core column is fixed to the upper connecting plate, and the lower end thereof is fixed to the lower connecting plate. The upper and lower surfaces of the rubber layer and the steel plate have a corrugated arc surface structure that can increase the contact area between the two, and the corrugated arc surface spreads sequentially from the center hole of the rubber layer and the steel plate from the inside to the outside.

[0006] Furthermore, the rubber layer and the steel plate are in the shape of a disk; all the corrugations of the corrugated arc surface are in the shape of a ring, and the center of the ring is located on the center line of the disk.

[0007] Furthermore, an upper sealing plate is fixed to the bottom of the upper connecting plate, and a lower sealing plate is fixed to the top of the lower connecting plate. All rubber layers are located between the upper sealing plate and the lower sealing plate. The bottom of the upper sealing plate presents a corrugated arc surface structure that fits the rubber layer located on the uppermost side; the top of the lower sealing plate presents a corrugated arc surface structure that fits the rubber layer located on the lowermost side; the upper sealing plate and the lower sealing plate both present an annular structure, the upper end of the lead core column passes through the inner ring of the upper sealing plate and is fixed to the upper connecting plate, and the lower end of the lead core column passes through the inner ring of the lower sealing plate and is fixed to the lower connecting plate.

[0008] Furthermore, a plurality of first connecting columns are fixed to the top of the upper sealing plate and are distributed at equal intervals along its circumference. A first connecting hole communicating with each other from top to bottom is provided on the upper connecting plate corresponding to each first connecting column. A first external thread is provided at the upper end of the first connecting column, and a first nut threadedly matched with the first nut is independently passed through the first connecting hole.

[0009] Furthermore, a plurality of second connecting columns are fixed to the bottom of the lower sealing plate and are distributed at equal intervals along its circumference. A second connecting hole communicating with each other from top to bottom is provided on the lower connecting plate corresponding to each second connecting column. A second external thread is provided at the lower end of the second connecting column. The second external thread independently passes through the second connecting hole and is connected to a second nut threadedly matched therewith.

[0010] Furthermore, a rubber protective sleeve is provided between the upper connecting plate and the lower connecting plate, and the upper sealing plate, the lower sealing plate and all the rubber layers and steel plates are located in the rubber protective sleeve.

[0011] Furthermore, the rubber protective sleeve is made of neoprene.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model increases the contact area between the rubber layer and the steel plate by setting the upper and lower surfaces thereof to be arcuate, thereby improving the anti-seismic capability. The rubber layer can better absorb the vibration force transmitted from the side and has a certain reset capability, thereby reducing the burden of the lead core column on absorbing energy and resetting on its own, thereby extending the service life of the lead core column. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural diagram of the utility model;

[0016] Figure 3 This is the internal structure diagram of the utility model;

[0017] Figure 4 It is a three-dimensional structural diagram of the steel plate;

[0018] The names of the components in the figure are: 1. Upper connecting plate; 2. Upper sealing plate; 3. Rubber layer; 4. Steel plate; 5. Lower sealing plate; 6. Lower connecting plate; 7. Rubber protective sleeve; 8. First connecting column; 9. First nut; 10. Lead core column. DETAILED DESCRIPTION

[0019] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings, but this does not limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0020] Example

[0021] The seismic isolation device for building construction described in this embodiment is as follows: Figures 1 to 4 As shown, it includes an upper connecting plate 1, and a lower connecting plate 6 is arranged directly below the upper connecting plate 1. The upper connecting plate 1 and the lower connecting plate 6 are both rectangular structures, and interconnected pre-connection anchor holes are opened between the top and bottom of the two for connecting to the embedded steel bars in the building.

[0022] Several layers of rubber layers 3 are arranged between the upper connecting plate 1 and the lower connecting plate 6, and are distributed sequentially from bottom to top. A steel plate 4 is fixed between each two adjacent rubber layers 3. A center hole is opened in the center of each rubber layer 3 and the steel plate 4, and the same lead core column 10 is installed in the center hole of all rubber layers 3 and steel plates 4; the upper end of the lead core column 10 is fixed to the upper connecting plate 1, and the lower end is fixed to the lower connecting plate 6. The upper and lower surfaces of the rubber layer 3 and the steel plate 4 have a corrugated arc structure that can increase the contact area between the two. The corrugated arc surface spreads from the center hole of the rubber layer 3 and the steel plate 4 from the inside to the outside.

[0023] like Figure 4 As shown, the rubber layer 3 and steel plate 4 are disc-shaped; all the corrugations on the corrugated arc surface are annular, with the center of the ring located on the centerline of the disc. The rubber layer 3 and steel plate 4 can also be described as a corrugated disc, with both exhibiting an undulating corrugation pattern in their central cross-sections. Their structure can be compared to the ripples caused by a drop of water falling into the water surface.

[0024] During actual use: When the rubber layer 3 and the steel plate 4 of the corrugated arc structure are stacked on each other in sequence, the contact area between the two can be enhanced, and the overall structural strength and stability can be improved to a certain extent, and the seismic force can be better dispersed and transmitted, thereby improving its overall bearing capacity and seismic resistance. It also has a good ability to cope with lateral vibrations, further improving the horizontal seismic resistance. If a vibration is transmitted from the side, the two steel plates 4 are expected to move laterally, but at this time they are absorbed by the rubber layer 3 of the same structure between the undulating corrugated arc surfaces of the steel plates 4. This design is more conducive to the ability of the rubber layer 3 to absorb lateral vibration forces, and also has a certain plastic deformation ability to assist the lead core column 10 in completing the reset after the vibration, reducing the burden of the lead core column 10 absorbing energy and resetting, and effectively improving the service life of the lead core column 10.

[0025] The annular corrugated arc surface can cope with the earthquake forces coming from all directions.

[0026] like Figure 1 and Figure 3 As shown, the upper sealing plate 2 is fixed to the bottom of the upper connecting plate 1, and the lower sealing plate 5 is fixed to the top of the lower connecting plate 6. All rubber layers 3 are located between the upper sealing plate 2 and the lower sealing plate 5. The bottom of the upper sealing plate 2 has a corrugated arc structure that fits the uppermost rubber layer 3; the top of the lower sealing plate 5 has a corrugated arc structure that fits the lowermost rubber layer 3. The upper sealing plate 2 and the lower sealing plate 5 are both annular structures. The upper end of the lead core column 10 passes through the inner ring of the upper sealing plate 2 and is fixed to the upper connecting plate 1, and the lower end of the lead core column 10 passes through the inner ring of the lower sealing plate 5 and is fixed to the lower connecting plate 6. The corrugated arc surface at the bottom of the upper sealing plate 2 and the corrugated arc surface at the top of the lower sealing plate 5 are both designed to better fit with the rubber layer 3, so that the connection between the two is consistent.

[0027] During use, the upper sealing plate 2 and the lower sealing plate 5 mainly prevent the internal filling material from leaking out, and connect the rubber layer 3 and the upper connecting plate 1 or the lower connecting plate 6 to form a whole.

[0028] A plurality of first connecting posts 8, evenly spaced along the circumference of the upper sealing plate 2, are fixed to the top. A first connecting hole, communicating vertically with each first connecting post 8, is provided on the upper connecting plate 1. The upper end of each first connecting post 8 is provided with a first external thread, and a first nut 9, threadedly engaged with the first nut, is independently threaded through the first connecting hole. This structure connects the upper sealing plate 2 to the upper connecting plate 1. During production, a blind hole can be provided at the bottom of the upper connecting plate 1, centered on the center of the first connecting hole. The first nut 9 is installed within the blind hole to prevent it from protruding above the top of the upper connecting plate 1 and hindering connection to the building.

[0029] Similarly, the bottom of lower cover plate 5 is fixed with several second connecting posts, spaced evenly along its circumference. Each second connecting post has a second connecting hole extending vertically through lower connecting plate 6. The lower end of each second connecting post has a second external thread, which independently passes through the second connecting hole and connects to a second nut that threadably engages with it. This structure primarily serves to secure lower cover plate 5 to lower connecting plate 6. Similarly, blind holes are provided at the second connecting holes to conceal the second nut, preventing it from protruding and affecting the connection to the foundation.

[0030] like Figure 3 As shown, a rubber protective sleeve 7 is provided between the upper connecting plate 1 and the lower connecting plate 6. The upper and lower sealing plates 2 and 5, as well as all the rubber layers 3 and steel plates 4, are located within the rubber protective sleeve 7. The rubber protective sleeve 7 is made of chloroprene rubber. Neoprene has excellent fatigue resistance, oil resistance, corrosion resistance, and flame retardancy, and can adapt to various environmental conditions, protecting the internal rubber layer 3 and steel plates 4 from erosion by external factors.

Claims

1. A seismic isolation device for building construction, comprising an upper connecting plate (1), a lower connecting plate (6) being arranged directly below the upper connecting plate (1), a plurality of rubber layers (3) being arranged between the upper connecting plate (1) and the lower connecting plate (6), a steel plate (4) being fixed between each two adjacent rubber layers (3), a center hole being provided at the center of each rubber layer (3) and the steel plate (4), a same lead column (10) being inserted into the center hole of each rubber layer (3) and the steel plate (4); the upper end of the lead column (10) being fixed to the upper connecting plate (1), and the lower end thereof being fixed to the lower connecting plate (6), characterized in that: The upper and lower surfaces of the rubber layer (3) and the steel plate (4) are in a corrugated arc structure that can increase the contact area between the two. The corrugated arc spreads sequentially from the inside to the outside from the central hole of the rubber layer (3) and the steel plate (4).

2. The seismic isolation device for building construction according to claim 1, characterized in that: The rubber layer (3) and the steel plate (4) are in the shape of a disk; all the corrugations of the corrugated arc surface are in the shape of a ring, and the center of the ring is located on the center line of the disk.

3. The seismic isolation device for building construction according to claim 1, characterized in that: An upper sealing plate (2) is fixed to the bottom of the upper connecting plate (1), and a lower sealing plate (5) is fixed to the top of the lower connecting plate (6); all rubber layers (3) are located between the upper sealing plate (2) and the lower sealing plate (5); the bottom of the upper sealing plate (2) is a corrugated arc surface structure that fits the rubber layer (3) located at the uppermost side; the top of the lower sealing plate (5) is a corrugated arc surface structure that fits the rubber layer (3) located at the lowermost side; the upper sealing plate (2) and the lower sealing plate (5) are both annular structures; the upper end of the lead core column (10) passes through the inner ring of the upper sealing plate (2) and is fixed to the upper connecting plate (1); the lower end of the lead core column (10) passes through the inner ring of the lower sealing plate (5) and is fixed to the lower connecting plate (6).

4. The seismic isolation device for building construction according to claim 3, characterized in that: A plurality of first connecting columns (8) are fixed to the top of the upper sealing plate (2) and are distributed at equal intervals along its circumference. A first connecting hole communicating with each other from top to bottom is provided on the upper connecting plate (1) corresponding to each first connecting column (8). A first external thread is provided at the upper end of the first connecting column (8), and a first nut (9) threadedly matched with the first connecting column is independently passed through the first connecting hole.

5. The seismic isolation device for building construction according to claim 3, characterized in that: A plurality of second connecting columns distributed at equal intervals along the circumference of the lower sealing plate (5) are fixed to the bottom thereof, and a second connecting hole communicating with each other from top to bottom is provided on the lower connecting plate (6) corresponding to each second connecting column, and a second external thread is provided at the lower end of the second connecting column, and the second external thread independently passes through the second connecting hole and is connected to a second nut threadedly matched therewith.

6. The seismic isolation device for building construction according to claim 3, characterized in that: A rubber protective sleeve (7) is provided between the upper connecting plate (1) and the lower connecting plate (6), and the upper sealing plate (2), the lower sealing plate (5) and all the rubber layers (3) and the steel plates (4) are located inside the rubber protective sleeve (7).

7. The seismic isolation device for building construction according to claim 6, characterized in that: The rubber protective sleeve (7) is made of chloroprene rubber.

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