Seismic isolation device

Abstract

The present invention relates to a seismic isolation device comprising: a core seismic isolation part having upper and lower support parts on upper and lower portions thereof, respectively; a stopper coupled to the upper support part; and multiple leaf springs coupled to the stopper. This structure can reliably insulate vibrations applied from the ground to the building when an earthquake occurs, thereby protecting facilities and people in the building, and can minimize overturning or destruction of the building.

Description

Seismic isolation device

[0001] The present invention relates to a seismic isolation device, and more specifically, to a seismic isolation device that can reliably insulate vibrations applied to a building from the ground when an earthquake occurs, thereby protecting facilities and people in the building, and minimizing the overturning or destruction of the building.

[0002] Seismic isolation is a general term that refers to the overall technology for isolating the entire building structure from the ground or isolating a specific part inside the building structure from the building structure.

[0003] And seismic isolation also means protecting equipment installed in a building structure or a specific part of a building from an earthquake by causing the building structure or a specific part of a building that is separated from the ground to vibrate relatively less even when the ground or building structure vibrates greatly during an earthquake.

[0004] In contrast, earthquake resistance is a term that refers to a structure that is designed to be sturdy so that it does not collapse even if an earthquake occurs and the structure, such as a building or bridge, vibrates greatly, or a structure that is equipped with a means to absorb vibrations.

[0005] From the above perspective, examples of inventions include the “earthquake prevention system for buildings” (hereinafter referred to as “prior art”) of Patent Publication No. 10-2007-0091384.

[0006] The prior art is a structure in which a concrete pile is driven into the ground surface, an H-beam die is installed on the concrete pile, a female hinge is attached to the corner of the H-beam die, a drive wheel is fixed under the die to support the weight of the building by making an H-beam die, a spring is inserted into a pipe and fixed to the bottom of the H-beam die, and then fixed to the die of the concrete pile so that the spring has some elasticity.

[0007] However, since the prior art fixes concrete piles by directly driving them into the ground, there was a problem that it was difficult to expect that the seismic vibration between the building and the ground would be reliably separated and insulated.

[0008] Therefore, there is an urgent need to develop a device that can protect facilities and people inside a building by insulating the vibrations applied to the building from the ground during an earthquake with a relatively simple structure, while also minimizing the collapse or destruction of the building.

[0009]

[0010] [Prior Art Literature]

[0011] [Patent Document]

[0012] Publication Patent No. 10-2007-0091384

[0013] The present invention was invented to improve the above-mentioned problems, and to provide a seismic isolation device that can reliably insulate vibrations applied to a building from the ground when an earthquake occurs, thereby protecting facilities and people in the building, and minimizing the overturning or destruction of the building.

[0014] In order to achieve the above object, the present invention comprises: a core base isolation unit disposed between a building and the ground to insulate earthquake vibration generated from the ground from being transmitted toward the building, and at the same time absorb or disperse the earthquake vibration; an upper support unit including an upper embedded steel plate disposed on an upper side of the core base isolation unit and provided on an upper side of a plurality of upper concrete structures provided on an upper side of a base isolation space formed between the building and the ground, and an upper plate having an upper surface facing a lower surface of the upper embedded steel plate; a lower support unit including a lower embedded steel plate disposed on a lower side of the core base isolation unit and provided on an upper side of a plurality of lower concrete structures provided on a lower side of the base isolation space, and a lower plate having a lower surface facing the upper surface of the lower embedded steel plate; a stopper in the shape of a pillar extending toward the lower support unit, having an inner surface that surrounds an edge of the upper plate and is detachably fixed to the upper plate; And it is possible to provide a seismic isolation device characterized in that it includes a plurality of plate springs that are radially arranged along the inner surface of the stopper, and have an upper portion coupled to the inner surface of the upper side of the stopper, and a lower portion extending to the lower support portion and the lower concrete structure side.

[0015] Here, the upper plate and the lower plate are formed in a circular or polygonal flat plate shape, the core seismic isolation part is formed in a cylindrical or polygonal column shape, and the stopper is formed in a cylindrical or polygonal column shape that engages with the edge shape of the upper plate.

[0016] At this time, the upper plate is characterized in that it has a larger area than the lower plate.

[0017] In addition, it is characterized by further including a plurality of first bolts that penetrate from the upper outer surface of the stopper and are fixed to the edge surface of the upper plate and are radially arranged along the outer surface of the stopper, and a plurality of second bolts that penetrate from the outer surface of the stopper and are fixed to the upper end of each of the plurality of leaf springs and are radially arranged along the outer surface of the stopper and are disposed on the lower side of the plurality of first bolts.

[0018] In addition, it is characterized by further including a fastening extension piece that extends perpendicularly to the upper or lower surface of the upper plate along the edge of the upper plate and has an outer surface facing the inner surface of the stopper, a plurality of first bolts that penetrate from the upper outer surface of the stopper and are fixed to the fastening extension piece and are radially arranged along the outer surface of the stopper, a plurality of second bolts that penetrate from the outer surface of the stopper and are fixed to the upper end of each of the plurality of leaf springs and are radially arranged along the outer surface of the stopper and are disposed on the lower side of the plurality of first bolts, and a plurality of reinforcing pieces that interconnect the inner surface of the fastening extension piece and the upper plate and are radially arranged along the edge of the upper plate.

[0019] According to the present invention having the above configuration, the following effects can be achieved.

[0020] First, the present invention has the special advantage of being able to protect facilities and people in a building by reliably insulating vibrations applied to the building from the ground when an earthquake occurs, and minimizing the overturning or destruction of the building, by including upper and lower support parts at the upper and lower portions of a core base isolation part, a stopper coupled to the upper support part, and a plurality of plate springs coupled to the stopper.

[0021] In particular, the present invention can maintain vibration insulation and durability against up-down, left-right, and shear stress, thereby protecting facilities and people in a building.

[0022] In addition, the present invention is excellent in terms of versatility because it can be designed and manufactured to respond to various construction environments by forming the upper and lower plates of the upper and lower support parts into a cylindrical or polygonal cylindrical shape such as a square, hexagonal, or octagonal shape corresponding to the core seismic isolation part.

[0023] In addition, the present invention has a special advantage in that the upper plate among the upper and lower support parts has a larger area than the lower plate, so that when an earthquake occurs, the vibration is dispersed in the upper plate, which is wider than the lower plate, in an amplitude corresponding to the seismic vibration that is to be transmitted from the ground toward the building, thereby allowing the building to remain in place even if the ground shakes due to the earthquake, thereby minimizing damage to property and life.

[0024] Above all, the present invention can minimize vibration and shaking of a building by effectively absorbing or dispersing earthquake vibrations that cannot be transmitted from any direction by a plurality of leaf springs whose upper ends are radially fixed to the inner surface of a stopper, thereby preventing the building from toppling or being damaged.

[0025] Figure 1 is a cross-sectional conceptual diagram showing the overall structure of a seismic isolation device according to one embodiment of the present invention.

[0026] Figure 2 is a cross-sectional conceptual diagram illustrating the overall structure of a seismic isolation device according to various embodiments of the present invention.

[0027] FIG. 3 illustrates a joint structure of a stopper and a plurality of plate springs, which are main parts of a seismic isolation device according to another embodiment of the present invention. FIG. 3(a) is a cross-sectional conceptual view taken along line iiia-iiia of FIG. 2(a), and FIG. 3(b) is a cross-sectional conceptual view taken along line iiib-iiib of FIG. 2(a).

[0028] The advantages and features of the present invention and the method for achieving them will become clear with reference to the embodiments described in detail below together with the accompanying drawings.

[0029] However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms.

[0030] The embodiments herein are provided to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention.

[0031] And the present invention is defined only by the scope of the claims.

[0032] Accordingly, in some embodiments, well-known components, well-known operations, and well-known techniques are not specifically described to avoid obscuring the present invention.

[0033] Additionally, throughout the specification, the same reference numerals refer to the same components, and the terminology used (referred to) in this specification is for the purpose of describing embodiments and is not intended to limit the present invention.

[0034] In this specification, the singular includes the plural unless specifically stated otherwise in the phrase, and the reference to an element or action as “including (or comprising)” does not exclude the presence or addition of one or more other elements or actions.

[0035] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in the sense commonly understood by a person of ordinary skill in the art to which the present invention belongs.

[0036] Also, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless they are defined otherwise.

[0037]

[0038] Hereinafter, a preferred embodiment of the present invention will be described with reference to the attached drawings.

[0039] First, FIG. 1 is a cross-sectional conceptual diagram illustrating the overall structure of a seismic isolation device according to one embodiment of the present invention.

[0040] And, FIG. 2 is a cross-sectional conceptual diagram illustrating the overall structure of a seismic isolation device according to various embodiments of the present invention.

[0041] In addition, FIG. 3 illustrates a joint structure of a stopper (600), which is a main part of a seismic isolation device according to another embodiment of the present invention, and a plurality of plate springs (700). FIG. 3(a) is a cross-sectional conceptual diagram taken along line iiia-iiia of FIG. 2(a), and FIG. 3(b) is a cross-sectional conceptual diagram taken along line iiib-iiib of FIG. 2(a).

[0042]

[0043] The present invention may be applied to an embodiment of a structure including upper and lower support parts (400, 500) provided on the upper and lower sides of a core seismic isolation part (C) as shown in FIGS. 1 to 3, a stopper (600) coupled to the upper support part (400), and a plurality of plate springs (700) coupled to the stopper (600).

[0044] First, the core seismic isolation member (C) is placed between a building (not shown) and the ground (not shown) to insulate earthquake vibrations generated from the ground from being transmitted toward the building, and to absorb or disperse earthquake vibrations.

[0045] And, the upper support member (400) is arranged on the upper side of the core base isolation member (C), and includes an upper embedded steel plate (410) mounted on the lower surface of a plurality of upper concrete structures (910) provided on the upper side of the base isolation space (900) formed between the building and the ground, and an upper plate (420) having an upper surface facing the lower surface of the upper embedded steel plate (410).

[0046] And, the lower support member (500) is arranged on the lower side of the core base isolation member (C) and includes a lower embedded steel plate (510) mounted on the upper surface of a plurality of lower concrete structures (920) provided on the lower side of the base isolation space (900), and a lower plate (520) having a lower surface facing the upper surface of the lower embedded steel plate (510).

[0047] In addition, the stopper (600) has an inner surface that is detachably fixed to the upper plate (420) while wrapping around the edge of the upper plate (420), and is formed in a pillar shape that extends toward the lower support (500).

[0048] In addition, a plurality of plate springs (700) have an upper end coupled to the inner surface of the upper side of the stopper (600) and a lower end extending to the lower support part (500) and the lower concrete structure (920), and are arranged radially along the inner surface of the stopper (600).

[0049] The present invention can be applied to the above-described embodiments, and of course, the following various embodiments can also be applied.

[0050]

[0051] First, the core seismic isolation part (C) may include a first unit (100), a second unit (200), and a third unit (300), as shown in the enlarged part of Fig. 1.

[0052] Here, the first unit (100) includes a plurality of steel plates (110) spaced apart from each other in a vertically stacked manner between the building and the ground to maintain structural strength, and a steel mesh (120) that wraps around the edges of each of the plurality of steel plates (110).

[0053] At this time, the second unit (200) is arranged between a plurality of steel plates (110) and includes a plurality of bearings (210) that disperse or absorb up-down and left-right shaking, including shear stress applied to the first unit (100) due to seismic vibration.

[0054] Additionally, the third unit (300) wraps around the outer surface of the first unit (100) to allow shape deformation in response to seismic vibration.

[0055]

[0056] Meanwhile, the iron plate (110) is arranged in multiple upper and lower stages with multiple spaces between the upper plate (420) and lower plate (520) which are arranged at the upper and lower portions, and has a thickness smaller than that of the upper plate (420) and lower plate (520).

[0057] In comparison, the steel plate (110) is provided to have a relatively thin thickness compared to the upper plate (420) and the lower plate (520) while allowing shape deformation and elastic deformation, thereby also performing the role of a plate spring that absorbs up-and-down vibrations applied to the building from the ground.

[0058] For reference, the upper plate (420) and the lower plate (520) should not be deformed when they come into contact with reinforcing bars (950) during construction at an actual construction site, more specifically, when they are fixed by welding or other methods, and should have a material and thickness strong enough to support the weight of a building of hundreds or thousands of tons or more, so it is desirable to make them of a material with a certain level of strength and thickness.

[0059] Accordingly, the number and thickness of the iron plate (110) can be appropriately designed to be modified considering the vertical arrangement structure of the upper plate (420) and the lower plate (520) and the size and volume of the building.

[0060] Although these upper plates (420) and lower plates (520) are not specifically illustrated, it is also possible to apply and modify the design so that they are arranged in a grid shape when viewed from the upper side to improve structural strength and load-bearing and distribution capabilities.

[0061] Additionally, the wire mesh (120) may be manufactured in a cylindrical or square column shape to wrap around the edges of each of the plurality of iron plates (110).

[0062] The wire mesh (120) is provided to perform the role of secondarily holding and maintaining the multi-layered structure of multiple iron plates (110) by absorbing or dispersing vibrations in the up-down, left-right, and right-left directions through the mesh structure formed across the surface.

[0063] Above all, the wire mesh (120) is designed to eliminate the risk of an accident where the building collapses due to the destruction of the base isolation device when a very strong earthquake causes the base isolation device to exceed the allowable shear stress and torsion range due to the earthquake vibration in the up, down, left, and right directions.

[0064] Specifically, the wire mesh (120) acts as a stopper in case of a very large earthquake that exceeds the torsional range due to the allowable shear stress and the seismic vibration in the up, down, left, and right directions. This mesh structure absorbs or disperses the shear stress and the seismic vibration in the up, down, left, and right directions, thereby wrapping the steel plates (110) placed inside the wire mesh (120) and the second unit (200) described later to protect them from exceeding the torsional range.

[0065] In addition, the cross-section of the core seismic isolation member (C) including the steel plate (110) and the steel mesh (120) according to the present invention and the cross-section of the stopper (600) and the plurality of plate springs (700) described later are illustrated as circular in FIG. 3, but are not necessarily limited to this structure, and it goes without saying that the first unit (100) may be installed so as to be formed in a polygonal column shape, such as a square, hexagonal, or octagonal column, depending on the manufacturing and installation environment.

[0066]

[0067] Meanwhile, it can be seen that the second unit (200) has a structure in which the ball (210) is received in the support hole (221) of the guide panel (220) and prevented from being separated from the guide section (230).

[0068] First, the metal ball (210) is a member formed in a spherical shape and arranged in multiple numbers between multiple iron plates (110) to form a plurality of bearings (210) so as to make cloud contact between the multiple iron plates (110).

[0069] In addition, the guide panel (220) is a flat-shaped member having a plurality of support holes (221) having a shape corresponding to the diameter of each of the balls (210) so that the plurality of balls (210) maintain their initially arranged positions between the plurality of iron plates (110).

[0070] In addition, the guide section (230) is formed by extending along the edge of the support hole (221) and bending upward or downward, thereby serving to control each of the balls (210) from being separated from the support hole (221).

[0071] Therefore, the edge of the guide panel (220) can be supported by the inner surface of the wire mesh (120).

[0072] Meanwhile, the aforementioned guide member (230) may be applied to an embodiment of a structure including an extension member (231) of a first width that is formed to extend radially toward the center of the support hole (221) along the edge of the support hole (221), as in the enlarged portion on the lower side of FIG. 1, and a contact member (232) that is formed to extend from the end of the extension member (231) and has a second width that is larger than the first width.

[0073] Accordingly, the extension pieces (231) are simultaneously bent upward and downward with respect to the edge of the support hole (221), and a pair of guide panels (220) are arranged facing each other upward and downward, and the extension pieces (231) provided on the upper guide panel (220) are bent upward, while the extension pieces (231) provided on the lower guide panel (220) are bent downward.

[0074] By doing this, a guide member (230) that simultaneously supports the outer surface of the ball (210) in the up-and-down direction by the extension member (231) and the contact member (232) is formed, and a structure that prevents the ball (210) from being dislodged can be provided so that it can remain in the position where it was initially placed.

[0075] In addition, although the present invention illustrates that the guide panels (220) are arranged facing each other vertically and that the extension pieces (231) from the upper guide panel (220) are bent toward the upper side and the extension pieces (231) from the lower guide panel (220) are bent toward the lower side, the present invention is not necessarily limited to this structure.

[0076] For example, instead of a structure in which a pair of guide panels (220) are arranged facing each other, an embodiment of a structure in which the outer surface of the ball (210) is supported by a single guide panel (220) may be applied, although not specifically shown.

[0077] That is, it is also possible to apply and modify a design that allows the outer surface of the ball (210) to be supported by a single guide panel (220) by alternately bending a plurality of extension pieces (231) formed along the support hole (221) of the guide panel (220) so that one of the extension pieces (231) is bent toward the upper side of the guide panel (220) and the other adjacent piece is bent toward the lower side of the guide panel (220).

[0078]

[0079] Meanwhile, it is desirable to fill a lubricant, such as grease, between the plurality of iron plates (110) for smooth operation of the balls (210) supported by the guide panel (220).

[0080] Earthquakes, both small and large, occur constantly across the globe, and the energy of this constant seismic movement is stored as heat energy.

[0081] From this perspective, existing seismic isolation devices made of rubber and steel plates face the problem of the rubber melting when the continuous seismic energy accumulates into heat energy, reaching its melting point, causing the building to collapse or be destroyed.

[0082] The present invention, in consideration of the problems of the existing base isolation device as described above, can maintain the state in which the balls (210) between the steel plates (110) are supported by the guide panel (220), and, as described above, can supplement the amount of grease that is exhausted or leaked. It goes without saying that the present invention may further include an automatic injection device (not shown) connected to the core base isolation member (C) and a nipple (not shown) connected to the automatic injection device.

[0083] The nipples can be installed in multiple numbers to communicate with the space between the plurality of iron plates (110) and the ball (210) by penetrating the wire mesh (120), and the automatic injection device connected to the plurality of nipples and the pipe can maintain the lubrication state by injecting grease into the space.

[0084] In addition, the core seismic isolation unit (C) is additionally equipped with a thermal detection temperature sensor that can check the temperature inside the space in real time, so that when the temperature exceeds the set value already stored in the server of the control center in conjunction with the sensor, it is possible to design applications and modifications such as relieving overheating of the grease by circulating coolant into the space through a pipe separately equipped in the aforementioned automatic injection device.

[0085]

[0086] Meanwhile, the third unit (300) may include a surface support (310) that is arranged to surround the entire wire mesh (120) forming the outer surface of the first unit (100) in the shape of a circular column or polygonal column, and allows shape deformation and elastic deformation.

[0087] Here, the surface support (310) includes a rubber pad (311) having an inner surface facing the outer surface of the wire mesh (120), and the rubber pad (311) may wrap around the entire wire mesh (120) in the shape of a circular column or polygonal column, so that a base isolation column in the shape of a circular column or polygonal column may be formed by the rubber pad (311).

[0088] These seismic isolation columns are designed to maintain all components necessary for vibration insulation, such as the steel plate (110) and ball (210) inside the steel mesh (120) mentioned above, in their original installed positions while providing a triple safety device that absorbs or disperses earthquake vibrations on the surface so that they are not directly transmitted to the building.

[0089] For reference, in the enlarged portion of Fig. 1, the surface support portion (310) of the third unit (300) is illustrated as a simple flat-plate shaped rubber pad (311) that forms a base isolation column in the shape of a circular column or polygonal column, but it is not necessarily limited to this structure.

[0090] That is, the flat shape of the rubber pad (311) can be modified and applied to a design, such as wrapping it with a structure having an internal space that can be stretched into a tube shape or a corrugated pipe shape, although not specifically shown, for cooling or lubricating the core seismic isolation member (C) described above and preventing leakage of the grease injected into the core seismic isolation member (C) and the circulating coolant.

[0091] In addition, it is possible to design modifications and applications, such as adding nipples or pipe connections for grease injection or coolant circulation, to the flexible structure in the shape of a tube or corrugated pipe.

[0092]

[0093] Meanwhile, the upper surface of the upper buried steel plate (410) can be welded and fixed to the lower part of the reinforcing bar (950) embedded in the upper concrete structure (910), and at least one third bolt (830) penetrates from the lower surface of the upper plate (420) and is fixed to the upper buried steel plate (410).

[0094] And, the lower surface of the lower buried steel plate (510) can be welded and fixed to the upper part of the reinforcing bar (950) embedded in the lower concrete structure (920), and at least one fourth bolt (840) penetrates from the upper surface of the lower plate (520) and is fixed to the lower buried steel plate (510).

[0095]

[0096] Meanwhile, it is preferable that the upper plate (420) have a larger area than the lower plate (520).

[0097] Here, the reason why the upper plate (420) has a larger area than the lower plate (520) is that when an earthquake occurs, the vibration is dispersed in the upper plate (420) which is wider than the lower plate (520) by an amplitude corresponding to the seismic vibration that is to be transmitted from the ground toward the building, thereby minimizing damage to property and life by allowing the building to remain in place even if the ground shakes due to the earthquake.

[0098]

[0099] Meanwhile, in the present invention, as shown in Fig. 1, first and second bolts (810, 820) may be additionally provided to secure the stopper (600) and the plate springs (700), respectively.

[0100] In normal times when no earthquake occurs, the lower edge of the stopper (600) is kept floating in the seismic isolation space (900).

[0101] Afterwards, when a large earthquake of magnitude 10 or higher occurs, the core base isolation member (C) shakes while dispersing or absorbing the up-down, left-right vibrations and shear stress caused by the earthquake vibration, and the stopper (600) supports the building so that it does not fall over due to the earthquake by allowing the lower part of the stopper (600) to withstand or deform to some extent when it hits the lower plate (520) or the lower concrete structure (920).

[0102] In other words, in normal times when no earthquake occurs, the lower part of the stopper (600) floats in the air, but when an earthquake occurs, it hits the lower plate (520) or the lower concrete structure (920) and supports the building so that it does not fall over.

[0103] Here, the first bolt (810) penetrates from the upper outer surface of the stopper (600) and is fixed to the edge surface of the upper plate (420), and is arranged radially along the outer surface of the stopper (600).

[0104] At this time, the second bolt (820) penetrates from the outer surface of the stopper (600) and is fixed to the upper portion of each of the plurality of plate springs (700), and is arranged radially along the outer surface of the stopper (600) and is arranged on the lower side of the plurality of first bolts (810).

[0105] That is, the joint structure of the upper plate (420) and the first bolt (810) as illustrated in Fig. 1 is a structure that is possible when applying an upper plate (420) having a thickness of several tens of centimeters or more for a large load to support a heavy, large-scale building.

[0106]

[0107] Meanwhile, the present invention may also apply an embodiment of a structure in which a stopper (600) is coupled to a first bolt (810) through a fastening extension piece (421) provided on an upper plate (420) as shown in FIG. 2, and the plate springs (700) are coupled to the stopper (600) by a second bolt (820).

[0108] First, the fastening extension piece (421) extends perpendicularly to the upper or lower surface of the upper plate (420) along the edge of the upper plate (420) and has an outer surface facing the inner surface of the stopper (600).

[0109] And, the first bolt (810) is fixed to the fastening extension piece (421) by penetrating from the upper outer surface of the stopper (600) and is arranged radially along the outer surface of the stopper (600).

[0110] In addition, the second bolt (820) is fixed to the upper part of each of the plurality of plate springs (700) by penetrating from the outer surface of the stopper (600) and is arranged radially along the outer surface of the stopper (600) and is arranged on the lower side of the plurality of first bolts (810), but may be arranged at different fastening positions as shown in FIG. 2(a) and FIG. 2(b).

[0111] That is, an embodiment of a structure in which the fastening extension piece (421) is formed to protrude from the upper surface of the upper plate (420) along the edge of the upper plate (420) as in Fig. 2(a) or is formed to protrude from the lower surface of the upper plate (420) as in Fig. 2(b) can be applied.

[0112] Accordingly, the second bolt (820) can be applied and designed in a structural arrangement in which the upper end of the plate spring (700) is fixed so that the lower end of the upper plate (420) and the upper end edge of the plate spring (700) face each other as in Fig. 2(a), or the upper end of the plate spring (700) is fixed so that the lower end edge of the fastening extension piece (421) and the upper end edge of the plate spring (700) face each other as in Fig. 2(b).

[0113] In addition, a plurality of reinforcing pieces (422) interconnect the inner surface of the fastening extension piece (421) and the upper plate (420) and are arranged radially along the edge of the upper plate (420).

[0114] The plurality of reinforcing pieces (422) are provided for the purpose of supporting a relatively lightweight and small-scale, medium-load building compared to the upper plate (420) illustrated in FIG. 1, and, when the thickness is smaller than that of the upper plate (420) illustrated in FIG. 1, preventing the upper plate (420) from being twisted or deformed due to up-down, left-right vibrations and shear stress caused by earthquake vibrations, while preventing the first bolts (810) from being damaged to some extent.

[0115]

[0116] Meanwhile, the upper plate (420) and the lower plate (520) are formed in a circular or polygonal flat plate shape, and the core seismic isolation member (C) is formed in a cylindrical shape as shown in FIG. 3 or in a polygonal column shape such as a square, hexagonal, or octagonal shape, although not specifically shown, and the stopper (600) can be formed in a cylindrical or polygonal column shape that fits into the edge shape of the upper plate (420).

[0117] Here, the upper portions of each of the plurality of plate springs (700) are arranged in close contact as shown in FIG. 3(a), and each of the plurality of plate springs (700) is formed to gradually narrow from the upper portion fixed by the second bolt (820) toward the lower portion, but it is preferable to design the lower portions of each of the plate springs (700) to be in contact with the lower plate (520) or the lower concrete structure (920) while maintaining a certain degree of tension.

[0118] At this time, the lower part of each of the plate springs (700) is designed to maintain a certain degree of tension and contact the lower plate (520) or the lower concrete structure (920) because even if an earthquake occurs, the core isolator (C) can be maintained at the center of each of the upper and lower plates (420, 520).

[0119]

[0120] Meanwhile, the seismic isolation device according to various embodiments of the present invention can be installed in a large-scale high-rise building with a structure as shown in FIGS. 1 to 3, and it is also possible to install the structure shown in FIGS. 1 to 3 by reversing it upside down so that managers or workers can easily inspect or repair it by visually checking it in a single-story building or a small- to medium-sized building of 10 stories or less.

[0121]

[0122] As described above, it can be seen that the present invention has as its basic technical idea the provision of a seismic isolation device that can protect facilities and people in a building by reliably insulating the vibration applied to the building from the ground when an earthquake occurs, and also minimize the overturning or destruction of the building.

[0123] And, of course, many other modifications and applications are also possible for those with common knowledge in the industry within the scope of the basic technical idea of ​​the present invention.

Claims

1. A core base isolation member placed between a building and the ground to insulate seismic vibrations generated from the ground from being transmitted toward the building, and at the same time absorb or disperse the seismic vibrations; An upper support member including an upper embedded steel plate, which is installed on the lower surface of a plurality of upper concrete structures provided on the upper side of an isolation space formed between a building and the ground and is arranged on the upper side of the core seismic isolation member, and an upper plate having an upper surface facing the lower surface of the upper embedded steel plate; A lower support member including a lower embedded steel plate, which is arranged on the lower side of the core seismic isolation member and is mounted on the upper surface of a plurality of lower concrete structures provided on the lower side of the seismic isolation space, and a lower plate having a lower surface facing the upper surface of the lower embedded steel plate; A stopper in the shape of a pillar extending toward the lower support portion, having an inner surface that is detachably fixed to the upper plate while wrapping around the edge of the upper plate; and An isolation device characterized by comprising an upper portion coupled to an inner surface of the upper side of the stopper, a lower portion extending to the lower support portion and the lower concrete structure side, and including a plurality of plate springs arranged radially along the inner surface of the stopper.

2. In claim 1, A base isolation device characterized in that the upper plate and the lower plate are formed in a circular or polygonal flat plate shape, the core base isolation member is formed in a cylindrical or polygonal pillar shape, and the stopper is formed in a cylindrical or polygonal pillar shape that engages with the edge shape of the upper plate.

3. In claim 1, An isolation device characterized in that the upper plate has a larger area than the lower plate.

4. In claim 1, A plurality of first bolts that penetrate from the upper outer surface of the stopper and are fixed to the edge surface of the upper plate and are arranged radially along the outer surface of the stopper; An isolation device characterized by further including a plurality of second bolts that penetrate from the outer surface of the stopper and are fixed to the upper portions of each of the plurality of plate springs, are arranged radially along the outer surface of the stopper, and are arranged on the lower side of the plurality of first bolts.

5. In claim 1, A fastening extension piece extending perpendicularly to the upper or lower surface of the upper plate along the edge of the upper plate and having an outer surface facing the inner surface of the stopper, A plurality of first bolts that penetrate from the upper outer surface of the stopper and are fixed to the fastening extension piece and are arranged radially along the outer surface of the stopper; A plurality of second bolts that penetrate from the outer surface of the stopper and are fixed to the upper portions of each of the plurality of plate springs and are arranged radially along the outer surface of the stopper and are arranged on the lower side of the plurality of first bolts; An isolation device characterized by further including a plurality of reinforcing pieces that interconnect the inner surface of the above-mentioned fastening extension piece and the above-mentioned upper plate and are arranged radially along the edge of the above-mentioned upper plate.

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