KR100773880B1 - Bearing for diminishing vertical vibrations - Google Patents

Abstract

A vertical vibration damping bearing is disclosed that dampens vibrations while supporting a load of the structure and absorbing impact loads. The vertical vibration damping bearing has an upper member coupled to the upper structure, a lower member coupled to the lower structure having a portion disposed facing and spaced apart from the upper member, between the opposing upper member and the lower member of the upper structure. An elastic body that supports the load elastically and buffers the impact force acting between the upper structure and the lower structure, and is connected to the upper member and the lower member, and is installed with the first elastic body to load the upper structure together with the first elastic body. While supporting and limiting the amplitude of the first elastic body and the contraction or expansion up and down in accordance with the direction of the up and down forces acting between the upper structure and the lower structure by the stress organic super-elasticity between the upper structure and the lower structure Stress-organic superelastic metal bars that absorb the impact force acting on It has an inclusive configuration and provides the effect of being easy to make, long service life, excellent load carrying capacity, and excellent shock absorption performance.

Bridge device, bearing, seismic isolation, earthquake, super elasticity, shape memory alloy, elasticity

Description

Bearing for diminishing vertical vibrations

1 is a front view showing an example of a high-speed railway station,

Figure 2 is a cross-sectional view showing an example of the vertical vibration damping bearing installed in the same structure as in Figure 1,

Figure 3 is a broken perspective view showing a state before the bearing is pressed according to the present invention, Figure 4 is a cross-sectional view showing a state in which the elastic body is compressed by applying pressure to the bearing of Figure 3,

5 is a graph showing an example of the relationship between the compressive stress and the strain of the stress-organic superelastic metal bar of FIG.

6 is a cross-sectional view showing another example of the vertical vibration damping bearing according to the present invention;

7 is a cross-sectional view showing a modification of the vertical vibration damping bearing of Figure 6,

9 is a cross-sectional view illustrating a modification of FIG. 3, and FIG. 10 is a partially enlarged view of FIG. 9;

11 is a partial cross-sectional view showing another installation example of the stress organic super-elastic metal bar,

12 is a cross-sectional view showing another example of the vertical vibration damping bearing according to the present invention.

Explanation of symbols on the main parts of the drawings

200 ~ 200f, 300: vertical vibration damping bearing

210, 310: lower member

212: elastic body receiving groove 214 ~ 214e: first fastening portion

216: temporary fastening groove 240, 340: upper member

242: protrusion 244 ~ 244e: second fastening

260, 360: elastomer

270 ~ 270f, 370: Stress organic superelastic metal bar

280: double assembly nut 290: temporary fastening means

The present invention relates to a bearing installed between the upper structure and the lower structure, and in particular, while supporting the load of the upper structure buffers the impact force transmitted between the upper structure and the lower structure by the earthquake or dynamic load, and the vibration in the vertical direction It relates to a vertical vibration damping bearing installed between the superstructure and the undercarriage for damping.

In general, structures such as nuclear facilities or gas tanks that require seismic design for bridges through vehicles, high speed trains passing through the upper part of buildings, and other earthquakes in the vertical direction are used to ensure vibration attenuation and stability of structures. The superstructure and the substructure are configured separately, and bearings are provided to buffer the impact force transmitted between the superstructure and the substructure and to damp vibration while supporting the load of the superstructure between the superstructure and the substructure.

1 is a front view showing an example of a high-speed railway station, Figure 2 is a cross-sectional view showing an example of the vertical vibration damping bearing installed in the structure as shown in FIG.

Referring to FIG. 1, a high speed railway station is divided into a substructure 30 where a person lives such as a restaurant and an upper structure 20 through which the high speed train 40 passes, and between the upper structure 20 and the lower structure 30. To support the load of the upper structure 20, buffer the impact force transmitted between the upper structure 20 and the lower structure 30 by the vertical earthquake or dynamic load when passing through the train 40, and is transmitted to each other The vertical vibration damping bearing 100 is mounted to damp the vibration. At such a high speed railway station, the dynamic load due to the running of the train 40 is greater than the static load of the upper structure 20. In such a structure 10, the impact force acting on the upper structure 20 and the lower structure 30 should be suppressed from being transmitted to each other as it is, and the vibration should be quickly attenuated. For this purpose, the coil spring and the viscous damper Vertical vibration damping bearings are widely used. Typically, rails have strict limitations on their deflection limits because there is a risk of train derailment if their settlement exceeds a certain amount. Generally, the deflection limit of the rail is about 2 mm.

An example of a vertical vibration damping bearing installed in the structure as shown in FIG. 1 is shown in FIG. 2. Referring to FIG. 2, the conventional vertical vibration damping bearing 100 includes coil springs 130 between the upper plate 110 and the lower plate 120. These coil springs 130 are for buffering the dynamic load of the train. These coil springs 130 generate vibration while buffering the dynamic load of the train. Coil spring 130 is a vibration damper when a new dynamic load is applied in a vibration state and because the amplitude control is difficult, as shown in Figure 2 the viscous damper 140 between the upper plate 110 and the lower plate 120 Install it. The viscous damper 140 fills the viscous fluid 144 in the cylinder 142 and couples the piston 148 through the rod 146 to limit the amplitude of the coil spring 130.

Conventional vertical vibration damping bearing 100 as shown in Figure 2 has a number of disadvantages by using a viscous fluid (144). That is, the viscous fluid 144 may be deteriorated over time, and since the viscous fluid 144 is repeatedly subjected to a large pressure for a long time, the viscous fluid 144 may leak out of the cylinder 142, and thus, its performance may be degraded. And since the viscous fluid 144 should not leak to the outside even at high pressure, its manufacture is very demanding.

An object of the present invention is to absorb shocks and damp vibrations due to high vertical dynamic loads generated in structures such as high-speed railway history, bridges with frequent vehicle traffic, and buildings that are constructed adjacent to railways with high vibrations, in which heavy materials such as high-speed railways pass to upper structures. To provide a suitable vertical vibration damping bearing for supporting structures.

Another object of the present invention is to provide a long life vertical vibration damping bearing.

It is another object of the present invention to provide a vertical vibration damping bearing that is easy to make.

The vertical vibration damping bearing according to the present invention is installed between the upper structure and the lower structure to support the load of the upper structure, the upper member coupled to the upper structure, disposed facing each other with an interval between the upper member A lower member having a portion coupled to the lower structure, an elastic body that supports the load of the upper structure between the opposite upper member and the lower member and buffers the impact force acting between the upper structure and the lower structure and the upper side It is installed between the member and the lower member and supports the load of the upper structure together with the elastic body to limit the amplitude of the elastic body and according to the direction of action of the vertical force acting between the upper structure and the lower structure. Shrink or expand up and down due to stress It has a configuration comprising a stress-organic superelastic metal bar that absorbs the impact force acting between the upper structure and the lower structure.

The upper member has a protrusion projecting downward, the lower member has an elastic body receiving groove that can accommodate the elastic body and allows the protrusion to be inserted and flows up and down, the elastic body is the elastic body receiving groove It is preferable to be configured in a port shape that is accommodated in and supporting the load of the superstructure.

The lower member has a protrusion projecting upwards, the upper member has an elastic body receiving groove that can accommodate the elastic body and allows the protrusion to be inserted and flows up and down, the elastic body is the elastic body receiving groove It is preferably a polyurethane that is accommodated in and supports the load of the superstructure.

The elastic body is accommodated in the elastic body accommodating groove and in the accommodated state as the pressure applied between the upper surface and the lower surface increases the space between the upper and the lower portion is filled with the flow is gradually reduced by the elastic deformation of the upper surface and the It is good to have a configuration on at least one side of the inside of the elastic body receiving groove between the lower surface.

A hole is formed in the elastic body from the upper member to the lower member, and the stress organic super-elastic metal bar is inserted through the hole to connect the upper member and the lower member.

The stress-organic super-elastic metal bar may be disposed at least two at intervals along the periphery of the elastic body receiving groove may have a configuration for connecting the upper member and the lower member.

The stress organic super elastic metal bar may have a configuration that is screwed with the upper member and the lower member.

It may have a configuration further comprising a temporary fastening means for temporarily pressing the elastic member by pressing the upper member toward the lower member before being installed between the upper structure and the lower structure.

The stress organic super-elastic metal bar may have a configuration for connecting the upper member and the lower member through the auxiliary connector.

One end of the stress-organic super-elastic metal bar may be provided with a hemispherical part, and the upper member or the lower member may have a hemispherical support for rotatably supporting the hemispherical part.

The upper member and the lower member is in the form of a flat plate, the elastic body may be composed of a disk support vertical vibration damping bearing made of a polyurethane disk.

In this case, a hole may be formed in the lower plate, and a pin may be provided in the center of the upper plate, and the hole may be deformed as necessary. The stress-organic superelastic metal bar is fixed at both ends, one end is fixed, the other end can be configured to be rotated with respect to the upper member or the lower member, both ends can be rotated and the like.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a broken perspective view showing a state before the bearing is pressed according to the present invention, Figure 4 is a cross-sectional view showing a state in which the elastic body is compressed by applying pressure to the bearing of Figure 3, Figure 5 is a compressive stress of the stress-organic superelastic metal bar And a graph showing an example of the relationship between strain.

3 and 4, the vertical vibration damping bearing 200 according to the present invention is installed between the upper structure 20 and the lower structure 30 of the structure 10 as shown in FIG. 20) and the undercarriage 30 to buffer the impact force acting between each other, and serves to suppress the vibration.

As shown, the vertical vibration damping bearing 200 according to the present invention is the lower member 210 coupled to the lower structure 30 and the upper member 240 coupled to the upper structure 20 and the opposite portions of the two members. Is disposed between the lower structure 30 and the upper structure 20 is provided with an elastic body 260 for buffering the impact force acting between each other. The lower member 210 and the upper member 240 has a portion disposed facing each other at intervals. The elastic body 260 supports the load of the upper structure 20 in normal times, and buffers it when an impact force due to the passage or stop of the train is applied.

The lower member 210 and the upper member 240 may be installed in various ways, such as foundation nuts, bolts, and welding, and may be installed on the upper surface of the lower structure or the bottom surface of the upper structure directly or indirectly through other members. have.

As shown, the lower member 210 is provided with an elastic body receiving groove (212). The elastic body accommodating groove 212 may be formed in various ways depending on the application, such as circular, rectangular. The lower member 210 is installed in the lower structure, the opening toward the upper structure of the opposite side. The first fastening portion 214 penetrates downward from the elastic accommodating groove 212 in the center portion of the lower member 210. The first fastening part 214 is to allow the stress organic superelastic metal bar 270 described later to be fixed to the lower member 210 through the double assembly nut 280, which must be formed in the center portion. Instead, other fixing methods may be used.

A temporary fastening groove 216 is formed along the edge of the elastic body receiving groove 212 to allow the temporary fastening means 290 to be coupled thereto.

As shown in FIGS. 3 and 4, the elastic body 260 is accommodated in the elastic body receiving groove 212. The elastic body 260 has a much larger elasticity than the elastic rubber used in the general port support, it is preferable to incline the side to have a space that can flow when subjected to the compression force in the state accommodated in the elastic receiving groove 260. For example, the elastic body 260 may be used such that the lower surface thereof is wider and the cross section thereof decreases toward the upper surface. The elastic body 260 elastically supports the load of the upper structure between the opposing upper member 240 and the lower member 210 and buffers the impact force acting between the upper structure and the lower structure. It is for.

  Of course, in some cases, other forms of concave, such as those in which the upper and lower middle portions are concave, a hole in the middle can be used. Only, there is an empty space that can be flowed while being compressed in the elastic body receiving groove (212). In some cases, the sidewall of the elastic body accommodating groove 212 may be inclined or a groove may be formed.

That is, the side surface 262 of the elastic body 260 is formed to be inclined, and most of them are separated from the side wall 218 of the elastic body receiving groove 212, and as a result, the side surface 262 of the elastic body 260 and the elastic body receiving groove 212. An empty space is formed between the sidewalls 218 of. The inclined side surface 262 of the elastic body 260 may be formed in a curved surface when viewed from the front, or may be in an inclined plane shape in some cases.

The empty space serves to provide a space in which a portion of the elastic body 260 may flow and be filled when the elastic body 260 is pressed to decrease its height.

As the elastic body 260, it is preferable to use a type A durometer hardness (HAD) of 90 A or more and a type D durometer hardness (HDD, type D durometer hardness) of 65 D or less, more preferably. Type A durometer hardness (HAD) hardness 95 A or more and D type durometer hardness (HDD, type D durometer hardness) 62 D or less are used. Of course, the elastic body 260 does not necessarily have to be in the range of hardness as described above. The reason is that the empty space is formed by inclining or forming the groove 221 of the elastic body 260, or by inclining or forming the groove of the side wall 218 of the elastic receiving groove 212. By forming such an empty space relatively large to increase the flowable volume of the elastic body 260, or when using the elastic body 260 having a relatively large area compared to the support load, the elastic body 260 outside the above-mentioned hardness range Can be used. Even when the elastic body 260 is subjected to pressure, the overall volume is hardly reduced and only the shape is changed. Holes 264 are formed in the elastic body 260. This hole 264 is for enabling the installation of the stress organic superelastic metal bar 270.

3 and 4, the vertical vibration damping bearing 200 according to the present invention includes an upper member 240. The upper member 240 may also be installed in various ways such as a foundation nut, bolt, and welding, and may be installed on the upper structure or the lower structure directly or indirectly through another member.

The upper member 240 is provided on the upper structure opposite to the lower member 210 and includes a protrusion 242 inserted into the elastic body accommodating groove 212. The protrusion 242 presses the opposing surface of the elastic body 260 in the state inserted into the elastic receiving groove 212, the movement in the horizontal direction is limited and rotation or tilting to any one side is allowed to be allowed. The lower end is formed to have approximately the same cross-sectional area as the elastic body accommodating groove 212, and the upper end thereof is preferably configured to reduce its cross-sectional area.

The second fastening portion 244 is formed at the center of the protrusion 242. The second fastening portion 244 is to be able to couple the upper end of the stress-organic super-elastic metal bar 270 described later.

Along the edge of the protrusion 242, a hole 246 for fastening the temporary fastening means 290 is formed.

The vertical vibration damping bearing 200 according to the present invention includes a stress organic superelastic metal bar 270. The stress organic super-elastic metal bar 270 is installed by connecting between the upper member 240 and the lower member 210 to support the load of the upper structure together with the elastic body 260 to limit the amplitude of the elastic body 260 Play a role. A first spiral portion 272 is formed at a lower end of the stress organic superelastic metal bar 270 to be coupled to the first fastening portion 214 of the lower member 210 through a double assembly nut 280. On the upper end, a second spiral portion 274 is formed to couple to the second fastening portion 244 of the upper member 240. That is, the stress-organic superelastic metal bar 270 also serves as a viscous damper described in the prior art, and serves to prevent the amplitude of the supporting structure from increasing due to resonance.

In addition, the stress-organic superelastic metal bar 270 acts between the upper structure and the lower structure by the stress organic super-elasticity while contracting or expanding up and down depending on the direction of the up and down force acting between the upper structure and the lower structure. It absorbs impact force and also serves to suppress vibration. This is the part which makes a big characteristic of this invention.

 A stopper 282 is attached to the bottom of the lower member 210 to prevent foreign matter from entering the sieve 1 fastening portion 214.

Here, superelasticity is a kind of phenomenon in which martensite is formed in the superelastic metal bar 270 by stress and then is returned to its original form when the stress is removed. There is no need to otherwise cool the martensite structure and there is no need to heat it to form a matrix. There are two ways to make martensite from shape memory alloy. First, thermoelastic martensite transformation by changing temperature, and the other is applying stress to make stress organic martensite. The present invention uses the latter.

The stress-organic superelastic metal bar 270 causes a stress organic martensite transformation when stress is applied, and when the stress is removed, the elastic-organic superelastic metal bar 270 is superelastic. It is called elasticity.

FIG. 5 shows the strain curves for compressive stress of a 25% porosity specimen, a 13% porosity specimen, and a void-free specimen, with the 25% porosity specimen exhibiting the lowest strain stress and low superelastic loop behavior. On the other hand, the 13% porosity specimens and the void-free specimens show large superelastic loops and high ductility.

Referring to FIG. 5, it can be seen that there is a difference in the trajectory of the strain change curve and its surrounding area depending on the porosity of the material in the above stress-organic superelastic phenomenon, which is surrounded by the strain change curve due to stress. This means absorbing the force applied in proportion to the area. Considering the graph of FIG. 5, it can be seen that as the porosity of the stress-organic superelastic metal bar 270 is lower, the area surrounding the strain change curve according to stress increases, which is better for application to the present invention. It can be seen that.

And, referring to the graph shown in Figure 5, the design load or impact force considering the load expected to be applied to the stress-organic superelastic metal bar 270, the cross-sectional area, length, strain, etc. of the stress-organic superelastic metal bar 270 Knowing only the basics, it is possible to easily perform the design required for the amplitude limitation, it is also easy to know the amount of impact that can be absorbed in the stress-organic superelastic metal bar 270.

The reason why the stress organic martensite is generated is that since the equilibrium temperature of the mother phase and martensite increases when the external stress is applied, and the martensite phase becomes more thermodynamically stable, the martensite is formed. It is lowered, so it comes back to the parent.

Both shape memory and superelastic phenomena are identical in that the material deforms and returns to its original form, but there is a difference between temperature and stress.

Vertical vibration damping bearing 200 according to the present invention is provided with a temporary fastening means (290). As the temporary fastening means 290, a bolt is suitable. The temporary fastening means 290 temporarily moves the lower member 210 and the upper member 240 to each other until the stress organic super elastic metal bar 270 is installed or until the vertical vibration damping bearing 200 is installed in the field. It is intended to pull toward the initial pressurization means, and is removed after installation. Of course, when the empty space is formed above the temporary fastening means 290, and the upper member 240 can flow up and down, the temporary fastening means 290 does not have to be removed. The temporary fastening means 290 is not necessary in the case of a vertical vibration damping bearing in which the capacity to be supported is small so that the elastic body 260 does not need to be initially compressed.

Referring to the assembly process of the vertical vibration damping bearing 200 according to the present invention as follows.

First, the stress organic super elastic metal bar 270 is inserted into the hole 264 formed in the elastic body 260 to fasten the second spiral portion 274 to the second fastening portion 244. Then, as shown in FIG. 3, the elastic body 260 is inserted into the elastic body receiving groove 212, and the temporary fastening means 290 is inserted into the hole 246 to be fastened to the temporary fastening groove 216. As the bolt that is the temporary fastening means 290 is fastened to the temporary fastening groove 216, the lower member 210 and the upper member 240 are close to each other, and thus the protrusion 242 presses the elastic body 260. Accordingly, as the elastic body 260 is compressed, its thickness decreases, and as the thickness decreases, the volume in the thickness direction flows into the empty space to fill the empty space and elastically deforms to compress the elastic body 260 as shown in FIG. .

In this state, the double assembly nut 280 is coupled to the first fastener 214, and is coupled to the first spiral portion 272 formed at the lower end of the stress organic superelastic metal bar 270, and the first fastening portion 214. The lower part of) is closed with a stopper 282 by welding or the like. In this way, the vertical vibration damping bearing 200 according to the present invention as shown in FIG. 4 is completed.

The temporary fastening means 290 may be removed after the stress-organic superelastic metal bar 270 is installed, but is preferably removed immediately before or after the vertical vibration damping bearing 200 is installed between the upper structure and the lower structure in the field. Do.

The vertical vibration damping bearing 200 according to the present invention as described above has the advantage of withstanding large horizontal forces as in the conventional port support, while the elastic body 260 is provided through the gap between the protrusion 242 and the elastic body receiving groove 212. No discharge to the outside occurs.

In addition, the amplitude may be limited by the stress organic superelastic metal bar 270, and the shock absorption may be excellent due to the stress organic superelastic phenomenon. Accordingly, the structure in which the vertical vibration damping bearing 200 is installed according to the present invention is suppressed from vibration.

That is, the vertical vibration damping bearing according to the present invention can limit the amplitude while having the advantages of both the conventional port bearing and the conventional disk bearing, and also has excellent shock absorption.

The vertical vibration damping bearing 200 according to the present invention described above may be configured upside down.

6 is a cross-sectional view showing another example of the vertical vibration damping bearing according to the present invention.

In some cases, the stress-organic superelastic metal bar 270a may be installed along the circumference of the elastic body accommodating groove 212 and the protrusion 242. In the case of the vertical vibration damping bearing 200a according to this embodiment, the first fastening part 214a and the second fastening part 244a should be installed along the circumference of the elastic body accommodating groove 212 and the protrusion 242, It is necessary to install at least two stress-organic superelastic metal bars 270a, and that the superelastic metal bars 270a can be more easily installed without the double assembling nut 280. The first and second spiral portions at both ends There is a difference in that the diameters of (272, 274) can be made relatively large, and the rest are as described in the previous embodiment.

FIG. 7 is a cross-sectional view illustrating a modified example of the vertical vibration damping bearing of FIG. 6.

As shown in the left part of FIG. 7, when it is necessary to adjust the compressive stiffness, the middle portion of the stress-organic superelastic metal bar 270b may be thinly formed to constitute the vertical vibration damping bearing 200b according to the present invention. .

In some cases, as shown in the right part of FIG. 7, auxiliary fasteners 284 and 285 made of ordinary metal are respectively installed on the lower member 210 and the upper member 240, and the diameters are relatively therebetween. By installing a small stress organic super-elastic metal bar (270c) can be configured to the vertical vibration damping bearing 200c according to the present invention.

8 is a cross-sectional view illustrating other modified examples of FIG. 6.

As shown in the left part of FIG. 8, a stress-organic superelastic metal bar 270d having an intermediate portion cut out of the elastic body accommodating groove 212 and the protrusion 242 is provided, and a temporary fastening means 290 is provided on the outside thereof. It can be installed to enable the initial pressure on the elastic body 260.

In some cases, as shown in the right side of FIG. 8, a stress organic superelastic metal bar 270e is installed on the lower side by using auxiliary fasteners 286 and 287 to the outer side of the elastic body accommodating groove 212 and the protrusion 242. The member 210 and the upper member 240 may be connected to each other, and a temporary fastening means 290 may be provided outward. The rest can be seen from the previous discussion.

9 is a cross-sectional view illustrating a modified example of FIG. 3, and FIG. 10 is a partially enlarged view of FIG. 9.

As can be seen in FIGS. 9 and 10, in some cases, when a relatively small diameter of the stress-organic superelastic metal bar 270f is to be used in the middle portion of the bearing, the double assembly nut 280 and the auxiliary fastener ( 288 is connected to the lower member 210 and the upper member 240, respectively, by installing a steel pipe (289) around the vertical vibration damping bearing 200f according to the present invention can be configured. At this time, the space 289a should be formed near the end of the steel pipe 289 so that the steel pipe 289 allows vibration between the upper and lower members 210 and 240.

11 is a partial cross-sectional view showing another example of installation of the stress organic super-elastic metal bar.

When it is desired to allow the rotation of the stress-organic superelastic metal bar 270g, a hemispherical part 272a is formed along one edge at one end of the stress-organic superelastic metal bar 270g, and the hemispherical part ( Hemispherical support 272b for rotatably supporting the hemispherical portion 272a is formed in the upper member 240 or the lower member 210 to which the 272a is connected, so that the stress organic superelastic metal bar 270g is centered at one end thereof. What is necessary is just to comprise so that it may rotate. In this case, the hemispherical portion 272a may be formed integrally with one end of the stress organic superelastic metal bar 270g, or may be formed using a nut having a hemispherical outer surface as shown in FIG. The hemispherical support 272b is preferably formed using a divided auxiliary support having a spherical groove formed on the inner circumferential surface and a spiral formed on the outer circumferential surface.

12 is a cross-sectional view showing another example of the vertical vibration damping bearing according to the present invention.

In some cases, the vertical vibration damping bearing 300 according to the present invention may be configured as a disk support type as shown in FIG. That is, the upper member 340 and the pin 342 installed on the lower structure and the lower member 310 having a pin hole 312 formed in the center and the bottom surface of the upper structure and having the pin 342 in the central portion. A stress-organic superelastic metal between the lower member 310 and the upper member 340 of the disk support made of an elastic body 360 that allows the passage and is installed between the upper member 340 and the lower member 310. The bar 370 may be installed along the circumference of the elastic body 360 in the manner described with reference to FIG. 11 to configure the vertical vibration damping bearing 300 according to the present invention. In this case, the stress-organic superelastic metal bar 370 may be rotated based on the connection point of the lower member 310, and the installation structure of the lower end thereof is as described in FIG.

Referring to the above description, it can be easily understood that the present invention can be applied to bearings for supporting structures of other forms in addition to those described through FIGS. 3 to 12.

The vertical vibration damping bearing according to the present invention described with reference to FIGS. 3 to 12 may be configured upside down. In this case, the roles of the upper member and the lower member are interchanged with each other.

In addition, the method of connecting the stress organic super elastic metal bar 370 to the lower member and the upper member may be variously changed in addition to the above-described method. For example, both ends of the stress-organic superelastic metal bar 370 is inserted into a groove or a hole of the lower member and the upper member to be welded and heat-sealed, and the stress-organic superelastic metal bar 370 is the lower member or the upper member. Pass through and tighten nuts on both sides.

As can be seen from the above description, the vertical vibration damping bearing according to the present invention has a large support load because the stress-organic superelastic metal bar supports the load of the upper structure together with the elastic body, and the upper member and the lower member are made of metal. Due to the connection, not only the amplitude between the upper member and the lower member can be suppressed, but also the shock absorbing force is large because it absorbs a part of the impact force from the stress-organic superelastic metal bar itself.

Knowing the basics, such as the expected load size and the cross-sectional area, length, and strain of the stress-organic superelastic metal bar, it is also an advantage that the design necessary for amplitude limitation can be easily performed.

The vertical vibration damping bearing according to the present invention having the characteristics as described above has a high vertical dynamic load generated in a structure such as a high speed railway station in which heavy materials pass through the upper structure, a bridge with frequent traffic, and a building constructed adjacent to a vibration railway. It is suitable for absorption of shock and vibration attenuation.

In addition, since the vertical vibration damping bearing according to the present invention uses a stress-organic superelastic metal bar, there is an advantage that the risk of failure is small and the service life is long.

It is also easy to make, since it does not use fluids such as viscous dampers.

As described above, the vertical vibration damping bearing according to the present invention is not only a seismic design of a nuclear power station, a gas tank, etc., but also an earthquake-damping design, where railway loads with high dynamic loads, high-speed railway history, and safety should be considered first. It can also be used in structures (hospitals, schools, public buildings, semiconductor plants, LNG tanks).

Claims (11)

delete In the bearing that is installed between the upper structure and the lower structure to support the load of the upper structure, An upper member coupled to the upper structure; A lower member coupled to a lower structure having a portion disposed facing the upper member at intervals; An elastic body supporting the load of the upper structure between the opposing upper and lower members and buffering the impact force acting between the upper structure and the lower structure; And The upper and lower members are connected to each other to support the load of the upper structure together with the elastic body while limiting the amplitude of the elastic body and the direction of action of the vertical force acting between the upper structure and the lower structure It includes a stress-organic super-elastic metal bar that absorbs the impact force acting between the upper structure and the lower structure by the stress organic super-elasticity while contracting or expanding up and down, The upper member has a protrusion projecting downward, the lower member has an elastic body receiving groove that can accommodate the elastic body and allows the protrusion to be inserted and flows up and down, the elastic body is the elastic body receiving groove Vertical vibration damping bearing, characterized in that the polyurethane is accommodated in to support the load of the superstructure. In the bearing that is installed between the upper structure and the lower structure to support the load of the upper structure, An upper member coupled to the upper structure; A lower member coupled to a lower structure having a portion disposed facing the upper member at intervals; An elastic body supporting the load of the upper structure between the opposing upper and lower members and buffering the impact force acting between the upper structure and the lower structure; And The upper and lower members are connected to each other to support the load of the upper structure together with the elastic body while limiting the amplitude of the elastic body and the direction of action of the vertical force acting between the upper structure and the lower structure It includes a stress-organic super-elastic metal bar that absorbs the impact force acting between the upper structure and the lower structure by the stress organic super-elasticity while contracting or expanding up and down, The lower member has a protrusion projecting upwards, the upper member has an elastic body receiving groove that can accommodate the elastic body and allows the protrusion to be inserted and flows up and down, the elastic body is the elastic body receiving groove Vertical vibration damping bearing, characterized in that the polyurethane is accommodated in to support the load of the superstructure. According to claim 2 or 3, wherein the elastic body is accommodated in the elastic body receiving groove and the portion that flows while being gradually reduced in thickness by the elastic deformation as the pressure applied between the upper and lower surfaces in the received state is filled Vertical vibration damping bearing having an empty space on at least one side of the inside of the elastic body receiving groove between the upper surface and the lower surface. According to claim 2 or 3, wherein the hole is formed in the elastic body from the upper member to the lower member, the stress-organic super-elastic metal bar is inserted through the hole to connect the upper member and the lower member. Vertical vibration damping bearing. The vertical vibration damping bearing according to claim 2 or 3, wherein the stress-organic superelastic metal bar is disposed at two or more intervals along the periphery of the elastic body receiving groove to connect the upper member and the lower member. The vertical vibration damping bearing according to claim 2 or 3, wherein the stress organic superelastic metal bar is screwed with the upper member and the lower member. The vertical vibration damping bearing according to claim 2 or 3, further comprising temporary fastening means for temporarily pressing said upper member toward said lower member before being installed between said upper structure and said lower structure. The vertical vibration damping bearing according to claim 2 or 3, wherein the stress organic superelastic metal bar connects the upper member and the lower member through an auxiliary connector. The vertical vibration damping bearing according to claim 2 or 3, wherein a hemispherical part is provided at one end of the stress organic superelastic metal bar, and a hemispherical support part is formed on the upper member or the lower member to rotatably support the hemispherical part. delete

Images