KR101910763B1 - Bridge bearing based on performance of deformation - Google Patents

Abstract

The present invention relates to a bridge bearing based on deformation capacity comprising: an upper board part mounted on a lower portion of a supported object; a lower board part having a retaining jaw vertically protruding along an edge of an upper surface and fixed to an installed object to face the upper board part; an elastic body arranged between the upper board part and the lower board part to support or buffer the load of the supported object; a guide block having a pair of side plates arranged in parallel to each other on inner faces adjacent to both end portions, a pair of displacement limiting parts arranged at both end portions of the side plates to be in mirror symmetry, and a guide groove limited by the side plates and the displacement limiting parts, wherein the side plates have concave portions formed vertically and the guide block is arranged in a bridge-axis direction at an edge of the upper board part corresponding to the retaining jaw. Therefore, the bridge bearing based on deformation capacity can show a shear resistance function by adjusting resistance performance by stages according to the level of shear deformation.

Description

[0001] The present invention relates to a bridge bearing based on performance of deformation,

The present invention relates to a deformation support based on a deformation performance, and more particularly to a deformation support which can adjust the resistance performance step by step according to deformation degree such as shear deformation, horizontal deformation and the like.

Generally, a resilient support for a bridge is interposed at the contact point of a pier supporting the upper structure of the bridge and the load of the bridge. The resilient support for the bridge resists the relative deformation due to a change in the season temperature, wind load, The stability of the bridge can be ensured and the durability life can be increased.

The three-stage shear resistance elastic support disclosed in Patent Document 1 can provide a shear resistance function in both weak and medium amplitude earthquakes and strong earthquakes, thereby reducing the impact force acting on the structure. The elastic supporter has a pair of forward and backward movement restricting jaws arranged on the lower surface of the upper plate at intervals in the forward and backward directions, and a second protruding jaw protruding upward is provided on the upper surface of the lower plate between a pair of forward and backward movement restricting jaws . The second protruding jaw is provided with a relatively short second jaw through the fixing means and a first jaw jaw having a relatively long length relative to the second jaw jaw is provided through the fixing means. The breaking strengths of the fixing means for fixing the first locking jaw and the fixing means for fixing the second locking jaw should be different from each other. When an earthquake of a design value or more occurs, the elastic support according to the prior art moves back and forth while the first locking jaw is in contact with the forward and backward movement limiting jaws to break down to reduce the kinetic energy, and after the first locking jaw is broken, It can break down in contact with the limiting jaw and reduce the kinetic energy to the second degree. Finally, the second protruding jaw may be damaged or deformed while contacting with the forward / backward movement restricting jaw after the second stopping jaw failure, thereby reducing the kinetic energy applied to the upper structure of the bridge by three orders.

The elastic restraint is capable of exhibiting a shear resistance function by sequentially breaking the first stopping jaw, the second stopping jaw and the second protrusion according to the kinetic energy intensity. When the second protrusion is applied to the bridge, It will not be able to prevent the worst such as falling down due to separation of the lower plate portion.

Korean Patent No. 10-1721250

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-described problems, and it is an object of the present invention to provide a guide block arranged in the direction of the throttling of a bridge and a guide jaw inserted between the guide blocks, do.

More specifically, the present invention has a structure capable of increasing the resistance between the guide block and the stopping jaw in order to limit the displacement between the upper and lower plates depending on the degree of deformation.

In order to attain the above object, according to a first aspect of the present invention, there is provided a spreader based on deformation performance, comprising: an upper plate installed at a lower portion of a support; A lower plate fixed to the object to be installed so as to face the upper plate, the lower plate having a latching protrusion protruding vertically upward along the edge of the upper surface; An elastic body disposed between the upper plate portion and the lower plate portion to support or buffer the load of the object to be supported; And a pair of side restraining members disposed symmetrically at both ends of the pair of side plates, and a pair of side restraining members, And a guide block having a guide groove defined by the restriction portion and arranged in the direction of the throttle from the edge of the upper plate portion corresponding to the engaging jaw,

Wherein the displacement restricting portion includes a box-shaped housing having one side thereof opened by an opening portion and a first through-hole formed on the other side thereof; A MER spring formed in a size and shape that can be received in the opening portion, the MER spring having the second through hole punctured in the axial direction; A body portion formed in a size and shape that can be received in the opening portion, a convex portion projecting in a direction orthogonal to the throttling direction in the body portion and inserted and arranged in the concave portion, and a female screw hole formed in a throttling direction in the body portion, A cap disposed adjacent the portion; And a shaft having a male screw at one end thereof.

In an embodiment of the present invention, the displacement restricting portion may arrange the first through hole, the opening portion, the second through hole, and the female screw hole coaxially.

Preferably, the length of the guide groove may be longer than the length of the engaging jaw.

Incidentally, the present invention can fix the upper surface of the housing or the upper surface of the convex portion to the lower surface of the upper plate portion.

Particularly, the present invention can be used to break the convex portion of the cap in the body portion.

The diagonal pedestal based on the deformation performance according to the second embodiment of the present invention includes a top plate portion provided at a lower portion of a supporting object and having a locking protrusion protruding vertically downward along the edge of the lower surface; And a guide groove formed in the center of the inner surface of the upper surface and having a concave portion formed in a vertical direction in the inner surface adjacent to both end portions and recessed in the throttle along the edge of the upper surface, A lower plate fixed to the object; A spherical bearing disposed between the upper plate portion and the lower plate portion to support the load of the support object or to provide horizontal and rotational movement; And a guide block having a pair of displacement restricting portions spaced symmetrically with respect to the mirror in the guide groove,

In this case, the displacement restricting portion includes a box-shaped housing having one side opened by the opening portion and the first through hole formed on the other side; A MER spring formed in a size and shape that can be received in the opening portion, the MER spring having the second through hole punctured in the axial direction; A body portion formed in a size and shape that can be received in the opening portion, a convex portion projecting in a direction orthogonal to the throttling direction in the body portion and inserted and arranged in the concave portion, and a female screw hole formed in a throttling direction in the body portion, A cap disposed adjacent the portion; And a shaft having a male screw at one end thereof.

In an embodiment of the present invention, the displacement restricting portion may arrange the first through hole, the opening portion, the second through hole, and the female screw hole coaxially.

Preferably, the distance between the pair of displacement restricting portions is longer than the length of the engaging jaws.

Incidentally, the present invention can fix the side surface of the housing or the side surface of the convex portion to the inner side surface of the guide groove.

In particular, the invention can be breakably engaged in the convex body of the cap.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

As described above, according to the present invention, it is possible to provide a coaxial bearing capable of adjusting the resistance performance in stages according to the degree of deformation.

That is, according to the present invention, vibration energy can be buffered sequentially through interference (contact), breakage, and elastic force according to the magnitude of shear deformation and / or horizontal deformation, thereby ensuring durability of a structure such as a bridge.

Particularly, the present invention can prevent the bridge from falling down as well as the above-described shear resistance function by means of a displacement restricting portion designed to prevent the upper plate portion which is relatively moving from being separated from the lower plate portion.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view schematically showing a diverging support based on deformation performance according to a first embodiment of the present invention; Fig.
Fig. 2 is an exploded perspective view showing a diverging support based on deformation performance according to the first embodiment of the present invention. Fig.
FIG. 3 is a detailed exploded perspective view showing a diagonal pedestal based on deformation performance according to the first embodiment of the present invention.
4 is an exploded perspective view schematically showing the guide block shown in Fig.
Fig. 5 (a) is a front view schematically showing a diverging support based on deformation performance according to the first embodiment of the present invention in the throttling direction, Fig. 5 (b) Fig.
Fig. 6 is a cross-sectional view of a cross base plate taken along line AA in Fig. 1;
Fig. 7 is a perspective view schematically showing a diverging support based on deformation performance according to a second embodiment of the present invention. Fig.
Fig. 8 is an exploded perspective view showing a diagonal pedestal based on deformation performance according to a second embodiment of the present invention. Fig.
FIG. 9 is a detailed exploded perspective view showing a diagonal pedestal based on deformation performance according to a second embodiment of the present invention.
10 is an exploded perspective view schematically showing the guide block shown in FIG.
Fig. 11 (a) is a front view schematically showing a diagonal support based on deformation performance according to the second embodiment of the present invention in the throttling direction, Fig. 11 (b) Fig.
FIG. 12 is a cross-sectional view of a coaster pedestal taken along line CC in FIG. 7;

BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific advantages and novel features of the invention will become more apparent from the following detailed description and examples taken in conjunction with the accompanying drawings. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. In this specification, the terms first, second, etc. are used to distinguish one element from another, and the element is not limited by the terms. In the accompanying drawings, some of the elements are exaggerated, omitted or schematically shown, and the size of each element does not entirely reflect the actual size.

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

1 to 6, a counter support 1 based on deformation performance according to the first embodiment of the present invention includes an upper plate 11 installed at a lower portion of a support object, An elastic body 13 disposed between the upper plate 11 and the lower plate 12 for supporting the load of the object to be supported and permitting horizontal displacement in the throttling direction and / or in the direction perpendicular to the throttling axis, a lower plate 12 fixed to the object, And a guide block 14 for limiting the displacement of the upper plate 11 so as to resist a shear deformation acting horizontally. The elastic body 13 may be made of a rubber material in order to elastically support the load of the support object (upper structure) and provide a restoring force against the horizontal displacement, Or a reinforcing plate made of a plastic material. The diathesis pedestal 1 based on the deforming performance according to the first embodiment of the present invention is arranged between the upper plate 11 and the lower plate 12 in place of the elastic body 13 to support the load of the upper structure, / RTI > and / or a spherical bearing (see FIG. 7) that allows horizontal and rotational movement in the direction perpendicular to the throttling axis.

For example, the dihedral pedestal 1 based on the deformation performance according to the first embodiment of the present invention can be interposed in a contact point of a pier supporting the upper structure of the bridge and its load, wherein the upper plate portion 11 corresponds to a support object (Not shown) of the bridge while the lower plate 12 can be fixed to the upper surface of a pier (not shown) corresponding to the object to be installed. The elastic body 13 is fixed between the upper plate portion 11 and the lower plate portion 12 so as to smoothly move the upper plate portion 11 in the horizontal direction. .

The diathesis pedestal 1 based on the deformation performance according to the first embodiment of the present invention has a stopping protrusion 124 protruding vertically upward from the upper surface of the lower plate portion 12 to limit the horizontal movement of the upper plate portion 11 Respectively. As shown, the stopping jaw 124 may be formed in a wedge shape along the edge of the lower plate 12 in the throttling direction. Further, the present invention can arrange the elastic body 13 inside the engaging jaw 124. [

The upper plate 11 has a guide block 14 arranged in the throttling direction along the edge. As shown in the figure, the guide block 14 is formed in a rectangular shape having guide grooves 144 generally in the inside so as to accommodate the free end of the stopping jaw 124. The guide groove 144 may be a long hole extending in the throttling direction.

Specifically, the guide block 14 includes a pair of side plates 141 disposed in parallel, a pair of displacement limiting portions 142 disposed at both ends of the pair of side plates 141, a pair of side plates 141, And a guide groove 144 defined by a pair of displacement restricting portions 142. Preferably, each of the displacement restricting portions 142 may be mirror-symmetrically arranged with respect to the guide groove 144 extending in the throttling direction.

In the present invention, a pair of side plates (141) arranged side by side at a predetermined interval in the throttle direction are fixed to the lower surface of the upper plate portion (11). (Concave portions) 1413 formed in the vertical direction on the inner side surfaces adjacent to both end portions of the side plate 141.

The displacement restricting portion 142 interferes with the stopping jaw 124 fixed to the lower plate portion when horizontally displaced in the throttling direction so as to restrain the movement of the upper plate portion 11 and to resist the shear deformation of the co- A housing 1421, a MER spring 1422, a cap 1423, and a shaft 1424 as components.

As shown in the figure, the housing 1421 is formed in a box shape with one side opened, and has an opening 1421a for providing a receiving space and a first through hole 1421c for guiding the shaft 1424. [ The first through hole 1421c is disposed so as to communicate with the opening 1421a by providing a through path of the shaft 1424 by drilling the other side of the box-shaped housing 1421. [ The housing 1421 guides the openings 1421a and the first through holes 1421c communicated with each other in the direction of the throttle and fixes the upper surface of the housing to the lower surface of the upper plate 11 .

The MER (Mass Energy Regulator) spring 1422 is provided between the housing 1421 and the cap 1423 and has a second through hole 1422c at its center so as to be elastically deformed while sliding along the axial direction of the shaft 1424 . The present invention may be any member that can provide an elastic restoring force like a coil spring instead of the MER spring. The MER spring 1422 is sized and shaped to be received in the opening 1421a of the housing 1421.

The cap 1423 includes a body portion 1423a having a size and shape that can be received in the opening portion 1421a of the housing 1421 and a convex portion 1423b projecting outward from both sides of the body portion 1423a. And a female screw hole 1423c formed with a female thread on the other side of the body portion 1423a. The upper surface of the convex portion is fixed to the lower surface of the upper plate 11 to prevent unnecessary downward movement of the cap . The cap 1423 can be fixed in position by inserting the convex portion 1423b in alignment with the concave portion 1413 formed in the pair of side plates 141. [ The cap 1423 can be disposed at the entrance side of the opening 1421a of the housing 1421 to prevent the MER spring 1422 from being released and the convex portion 1423b, Is broken at the body portion 1423a to help force the body portion 1423a into the opening portion 1421a. In addition, the female screw hole 1423c is formed in the throttling direction, while the convex portion 1423b is elongated in the orthogonal axis orthogonal to the forming direction of the female screw hole.

The shaft 1424 is an elongate shaft member which forms a male screw thread 1424c at one end and extends in the throttling direction. That is, one end of the shaft 1424 passes through the first through hole 1421c and the opening 1421a of the housing 1421 and the second through hole 1422c of the MER spring 1422, The length of the shaft should be longer than the length in the throttling direction of the housing 1421. In this case, As a result, in the first embodiment of the present invention, the displacement restricting portion 142 is provided with the first through hole 1421c and the opening portion 1421a of the housing 1421, the MER spring 1422 The second through hole 1422c of the cap 1423 and the female screw hole 1423c of the cap 1423 can be arranged coaxially.

As described above, the eccentric bearing 1 based on the deformation performance according to the first embodiment of the present invention can adjust the resistance performance step by step according to the degree of shear deformation through the following behaviors.

The upper plate 11 can be provided with the guide block 14 at a position corresponding to the engaging jaw 124 as described above. The length L ₁₄₄ of the guide groove 144 is longer than the length L ₁₂₄ in the throttling direction at the free end of the engaging jaw 124 so that the guide groove 144 in which the engaging jaw 124 moves in the throttle direction, Lt; / RTI > Here, the length L ₁₄₄ of the guide groove may be the distance of the pair of displacement restricting portions 242 spaced apart from each other. When the shear deformation 1 of the present invention is applied to a predetermined shear deformation (or a horizontal displacement of an upper structure due to an earthquake or the like) determined by an intensity such as a shade or the like, shear deformation of the elastic member 13 causes the upper deck 11 The guide groove 144 is allowed to move in the throttling direction without interference (or contact) with the stopping jaw 124 while moving and displaced, and the horizontal force is absorbed by the fluidity of the elastic body 13. [

The width W ₁₄₄ of the guide groove 144 is longer than or equal to the width W ₁₂₄ of the guide groove 124 and the width of the guide groove 144 in the vertical direction The hooking jaw 124 can be positioned within the inner width range of the guide groove 144 to permit horizontal movement of the upper plate portion. Here, the width W ₁₄₄ of the guide groove may be a distance between the pair of side plates 141 arranged in parallel. Of course, when the upper plate 11 is horizontally displaced beyond the permissible range in the direction perpendicular to the throttling axis, the inner surface of the guide groove 144 interferes with the engaging jaw 124 to restrict movement.

For example, the shear support 1 according to the first embodiment of the present invention generates excessive shear deformation in accordance with the horizontal vibration energy of the upper structure, for example, expansion or contraction of the upper structure. For example, The relative movement of the upper plate 11 in the throttling direction occurs and the cap 1423 of the guide block 14 disposed on the lower surface of the upper plate 11 interferes with the latching jaw 124 The shear resistance function is exerted by restricting the movement.

The convex portion 1423b is broken when the cap 1423 of the guide block 14 collides with the engaging jaw 124 directly or indirectly, for example, in the event of excessive displacement due to a strong magnitude of magnitude of magnitude. So thin than the thickness (T _a) of the thickness of the convex portion (1423b) (T _b) a body portion (1423a) as shown in Figure 4, the convex portion may be is applied with a predetermined external force, breaking away from the body portion. As a result, the body portion 1423a of the cap 1423 absorbs and damps the horizontal vibration energy through elastic compression and / or elastic restoration of the MER spring 1422 while moving backward along the axial direction of the shaft, The shear resistance function is exhibited while being dispersed in the alternation or pier.

The cap 1423 of the guide block 14 collides with the engaging jaw 124 to break the convex portion 1423b. The body portion 1423a of the cap 1423 is then retracted along the axial direction of the shaft so that the MER spring 1422 is elastically compressed and fixed in position in the opening portion 1421a of the housing 1421 do. As is well known to those skilled in the art, the convex portion 1423b is broken while being in contact with the engaging jaw to reduce the kinetic energy and the kinetic energy is reduced again through the elastic compression of the MER spring 1422, do. Meanwhile, in the first embodiment of the present invention, the body portion 1423a is fixed in the opening portion 1421a of the housing 1421 to prevent the top plate 11 from being separated, thereby preventing falling of the bridge.

As a result, the present invention is characterized in that shear resistance performance can be exhibited stepwise (or sequentially) in accordance with the degree of shear deformation.

As described above, when the body portion 1423a is forced into the housing 1421, the operator is subjected to the retreating movement of the body portion 1423a, and the other end of the shaft 1424 is engaged with the first through- The cap 1423 of the guide block 14 can be visually confirmed that the cap 1423 is damaged. In addition, according to the present invention, in the process of horizontally displacing the constituent member, the constituent member, which is broken during the process of breaking the constituent member, is not thrown out to the outside, thereby preventing the secondary accident damage.

The diaphragm support 1 according to the first embodiment of the present invention can easily disassemble the displacement restricting portion by unscrewing the shaft 1424, thereby improving maintenance and / or maintenance.

7 to 12, a counter support 2 based on the deformation performance according to the second embodiment of the present invention includes an upper plate portion 21 provided at a lower portion of a support object, A lower plate portion 22 fixed to the object, a spherical bearing 23 disposed between the upper plate portion 21 and the lower plate portion 22 to provide horizontal and rotational movement, and a resistance against horizontal acting shear deformation And a guide block 24 for limiting the displacement of the upper plate portion 21 so as to limit the displacement. The present invention is not limited to this and the diathesis restraint 2 based on the deformation performance according to the second embodiment of the present invention may be arranged between the upper plate portion 21 and the lower plate portion 22 instead of the spherical bearing 23, It may be replaced by an elastic body (see Fig. 3) composed of a rubber material which supports the load and allows horizontal displacement in the direction of the throttling axis and / or the direction perpendicular to the throttling axis. Of course, the elastic body may be a structure in which a rubber and a reinforcing plate are laminated.

For example, according to the second embodiment of the present invention, the beam receiver 2 based on the deformation performance can be interposed in the contact between the upper structure of the bridge and the piers supporting the load of the upper structure, (Not shown) of the bridge while the lower plate 22 can be fixed to the upper surface of a pier (not shown) corresponding to the object to be installed.

The diagonal pedestal 2 based on the deformation performance according to the second embodiment of the present invention is provided with a latching jaw 214 protruding vertically downward from the lower surface of the top plate portion 21 to limit horizontal movement of the top plate portion 21 do. As shown, the latching jaws 214 may be formed along the edge of the top plate 21 in the direction of the throttling axis. In addition, the present invention can place the spherical bearing 23 inside the retaining jaw 214.

The lower plate portion 22 has a bearing receiving groove 223 for accommodating the spherical bearing 23 in a rotatable manner in a central portion of the inner region thereof and a guide groove 224 formed concavely in the thrust direction along the edge of the bearing receiving groove 223. Incidentally, the lower plate portion 22 has recessed portions 2243 formed in the vertical direction on the inner side surface adjacent to both end portions of the guide groove 224. As shown in the figure, the lower plate portion 22 has the guide block 24 disposed in the guide groove 224.

Specifically, the guide block 24 is composed of a pair of displacement restricting portions 242 which are arranged to face each other in a guide groove 224 formed in a long axis in the throttling direction. Preferably, each of the displacement restricting portions 242 may be mirror-symmetrically arranged with respect to the guide groove 224 extending in the throttling direction.

The displacement restricting portion 242 is a member that can interfere with the stopping jaw 214 fixed in position when horizontally displaced in the throttling direction so as to suppress the movement of the upper plate 21 and to resist the shearing deformation of the co- A housing 2421, a MER spring 2422, a cap 2423, and a shaft 2424.

As shown in the figure, the housing 2421 is formed in a box shape with one side opened, and has an opening portion 2421a and a first through hole 2421c for providing a receiving space. The first through hole 2421c is disposed so as to communicate with the opening 2421a by providing a through passage of the shaft 2424 by drilling the other side of the box-shaped housing 2421. [ The housing 2421 is configured so that the openings 2421a and the first through holes 2421c communicated with each other are oriented in the direction of the throttling direction and the side surfaces of the housings are connected to the guide grooves 224 of the lower plate portion 22 And fix it on the inner side. Alternatively, the lower surface of the housing may be fixed to the inner lower surface of the guide groove of the lower plate portion.

The MER spring 2422 is provided between the housing 2421 and the cap 2423 and has a second through hole 2422c at its center so as to be elastically deformed while sliding along the axial direction of the shaft 2424. [ The present invention may be any member that can provide an elastic restoring force like a coil spring instead of the MER spring. The MER spring 2422 is sized and shaped to be received in the opening 2421a of the housing 2421.

The cap 2423 includes a body portion 2423a having a size and shape that can be received in the opening portion 2421a of the housing 2421 and a convex portion 2423b projecting outward from both sides of the body portion 2423a. And a female screw hole 2423c in which female threads are formed on the other side of the body portion 2423a are formed on the inner surface of the guide groove 224 of the lower plate portion 22, So that unnecessary upward movement of the cap can be prevented. The cap 2423 can be fixed in position by inserting the convex portion 2423b in alignment with the concave portion 2243 formed in the guide groove 224. [ The cap 2423 is disposed at the entrance side of the opening 2421a of the housing 2421 to prevent the MER spring 2422 from being separated from the cap 2423. When the cap 2423 is applied with a predetermined shear deformation or the like, Is broken at the body portion 2423a to help force the body portion 2423a into the opening portion 2421a. In addition, the female screw hole 2423c is formed in the throttling direction, while the convex portion 2423b is elongated in the orthogonal axis direction orthogonal to the forming direction of the female screw hole.

The shaft 2424 is an elongate shaft member that forms a male screw thread 2424c at one end and extends in the throttling direction. That is, one end of the shaft 2424 passes through the first through hole 2421c and the opening 2421a of the housing 2421 and the second through hole 2422c of the MER spring 2422, The length of the shaft should be longer than that of the housing 2421 in the throttling direction. As a result, in the second embodiment of the present invention, the displacement restricting portion 242 includes the first through hole 2421c and the opening portion 2421a of the housing 2421, the MER spring 2422 The second through hole 2422c of the cap 2423 and the female screw hole 2423c of the cap 2423 can be arranged coaxially.

As described above, according to the deformation performance based on the deformation performance according to the second embodiment of the present invention, the resistance performance can be adjusted stepwise according to the degree of shear deformation through the following behaviors.

The upper plate portion 21 can be provided with the latching jaws 214 at positions corresponding to the guide grooves 224 as described above. The spacing distance L ₂₄₂ of the pair of displacement restricting portions 242 spaced apart from each other is longer than the length L _{214 of the} stopping jaw 214 so that the stopping jaw 214 is positioned between the pair of displacement limiting portions 242 So as to be movable within a set horizontal displacement. In other words, when the micro-pedestal 2 according to the present invention is applied to a predetermined shear deformation (or a horizontal displacement of the upper structure due to an earthquake or the like) (Or contact) with the pair of displacement restricting portions in the guide groove 224 in the throttling direction.

Deobuleoseo, the present invention has a top with throttle direction perpendicular to the guide groove 224, the width (W ₂₂₄₎ to obtain the form, or the same size longer than the width (W ₂₁₄₎ of the locking step 214 of the, cross the throttle direction at right angles with the structure The hooking jaw 214 is positioned within the inner width range of the guide groove 224 to permit horizontal movement of the upper plate portion. Of course, when the upper plate portion 21 is horizontally displaced beyond the permissible range in the direction perpendicular to the throttling axis, the inner surface of the guide groove 224 interferes with the engaging jaw 214 to restrict movement.

The diagonal pedestal 2 according to the second embodiment of the present invention generates excessive relative deformation in accordance with the horizontal vibration energy, for example, expansion and contraction of the upper structure or earthquake. For example, A relative movement is generated in the throttling direction of the upper plate portion 21 to apply a load so that the locking protrusion 214 fixed to the lower surface of the upper plate portion 21 is guided to the pair of displacement limiting portions 242 of the guide block 24 And the shear resistance function is exhibited by restricting the movement.

The protruding jaw 214 collides with the cap 2423 of the displacement restricting portion 242 directly or indirectly, and the protruding portion 2423b is broken, for example, when an excessive displacement occurs due to a strong magnitude of magnitude of magnitude. So thin than the thickness (T _a) of the thickness of the convex portion (2423b) (T _b) a body portion (2423a) 10, the convex portion may be is applied with a predetermined external force, breaking away from the body portion. As a result, the body portion 2423a of the cap 2423 absorbs and damps the horizontal vibration energy through elastic compression and / or elastic restoration of the MER spring 2422 while moving backward along the axial direction of the shaft, The shear resistance function is exhibited while being alternately dispersed in the alternating pier or bridge pier through the piercing member 23.

The hooking jaw 214 collides with the cap 2423 of the guide block 24 to break the convex portion 2423b. The body portion 2423a of the cap 2423 is retreated along the axial direction of the shaft and elastically compresses the MER spring 2422 and is fixed in position in the opening portion 2421a of the housing 2421 do. As is well known to those skilled in the art, the convex portion 2423b is broken while being in contact with the engaging jaw to reduce the kinetic energy and the kinetic energy is again reduced through the elastic compression of the MER spring 2422, do. Meanwhile, in the second embodiment of the present invention, the body portion 2423a is fixed in the opening portion 2421a of the housing 2421 to prevent the top plate 21 from being separated, thereby preventing the bridge from falling down.

As a result, the present invention is characterized in that the shear resistance performance can be exhibited stepwise (or sequentially) in accordance with the degree of shear deformation (relative deformation).

As described above, when the body portion 2423a is forced into the housing 2421, the operator is subjected to the retreating movement of the body portion 2423a, and the other end of the shaft 2424 is engaged with the first through- The cap 2423 of the guide block 24 can be visually confirmed as it is forcibly exposed to the outside through the cap 2421c. In addition, according to the present invention, in the process of horizontally displacing the constituent members, the constituent members, which are broken in the process of breaking the respective constituent members, do not protrude to the outside, so that the secondary accident damage can be prevented in advance.

The diagonal pedestal 2 according to the second embodiment of the present invention can easily disassemble the displacement restricting portion by unscrewing the shaft 2424, thereby improving maintenance and / or maintenance.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not to be limited to the details thereof, It will be apparent that modifications and improvements can be made by those skilled in the art.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1, 2 ----- elastic support,
11, 21 ----- top plate,
12, 22 ----- Lower plate part,
13 ----- elastomers,
14, 24 ----- guide block,
23 ----- Spherical bearing.

Claims (10)

An upper plate 11 installed at a lower portion of the support object;
A lower plate portion 12 having an engagement protrusion 124 protruding vertically upward along an edge of the upper surface and fixed to an object to be installed so as to face the upper plate portion 11;
An elastic body 13 disposed between the upper plate 11 and the lower plate 12 to support or buffer the load of the object to be supported; And
A pair of side plates 141 disposed parallel to each other with a concave portion 1413 formed in a vertical direction on the inner side adjacent to both ends of the pair of side plates 141 and a pair of displacement restricting portions 141, And a guide groove 144 defined by the pair of side plates 141 and the pair of displacement restricting portions 142. The guide groove 144 is formed at an edge of the upper plate portion 11 corresponding to the engagement protrusion 124 And a guide block (14) arranged in the throttling direction,
The displacement restricting section 142,
A box-shaped housing 1421 having one side opened by the opening 1421a and a first through hole 1421c formed on the other side;
A MER spring 1422 formed in a size and shape that can be received in the opening portion 1421a and having a second through hole 1422c formed in an axial direction thereof;
A body portion 1423a that is formed in a size and shape that can be received in the opening portion 1421a and a convex portion 1420b protruding from the body portion 1423a in a direction orthogonal to the throttling direction, A cap 1423 disposed adjacent to the opening 1421a and having a female screw hole 1423c formed in the direction of the throttle in the body portion 1423a; And
And a shaft 1424 having a male screw thread 1424c formed at one end thereof, and the convex portion 1423b is coupled to the body portion 1423a in a breakable manner.
The method according to claim 1,
The displacement restricting portion 142 is formed on the basis of deformation performance in which the first through hole 1421c and the opening portion 1421a, the second through hole 1422c, and the female screw hole 1423c are arranged coaxially A subscriber.
The method according to claim 1,
Wherein a length L ₁₄₄ of the guide groove 144 is longer than a length L ₁₂₄ of the engaging step ₁₂₄ .
The method according to claim 1,
The upper face of the housing (1421) or the upper face of the convex portion (1423b) is fixed to the lower face of the upper plate (11).
delete An upper plate portion 21 provided at a lower portion of the support object and having a latching protrusion 214 protruding vertically downward along the edge of the lower surface;
A guide groove 224 having a bearing receiving groove 223 at the center of the inner surface of the upper surface and recessed portions 2243 formed concavely in the throttling direction along the edge of the upper surface and formed in the vertical direction on the inner surface adjacent to both ends, A lower plate portion 22 fixed to the object to be installed so as to face the upper plate portion 21;
A spherical bearing (23) disposed between the upper plate portion (21) and the lower plate portion (22) to support a load of the object to be supported or to provide horizontal and rotational movement; And
And a guide block 24 having a pair of displacement restricting portions 242 spaced mirror-symmetrically in the guide groove 224,
The displacement restricting section 242,
A box-shaped housing 2421 having one side opened by the opening 2421a and a first through-hole 2421c formed on the other side;
A MER spring 2422 formed in a size and shape that can be received in the opening portion 2421a and having a second through hole 2422c formed in an axial direction thereof;
A body portion 2423a that is formed in a size and shape that can be received in the opening portion 2421a and a convex portion 2420b protruding from the body portion 2423a in a direction perpendicular to the throttling direction, A cap 2423 disposed adjacent to the opening 2421a and having a female screw hole 2423c formed in the direction of an axis of the body portion 2423a; And
And a shaft 2424 having a male screw thread 2424c formed at one end thereof, and the convex portion 2423b is coupled to the body portion 2423a so as to be able to break.
The method of claim 6,
The displacement restricting portion 242 is formed on the basis of deformation performance in which the first through hole 2421c and the opening portion 2421a, the second through hole 2422c, and the female screw hole 2423c are arranged coaxially A subscriber.
The method of claim 6,
Wherein a distance L ₂₄₂ between the pair of displacement limiting portions ₂₄₂ is longer than a length L ₂₁₄ of the engaging step ₂₁₄ .
The method of claim 6,
Wherein the side surface of the housing (2421) or the side surface of the convex portion (2423b) is fixed to the inner side surface of the guide groove (224).
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