KR102463678B1 - Structure supporting device having elastic pad and manufacturing method thereof - Google Patents

Abstract

A structure supporting device having an elastic pad and a manufacturing method thereof are disclosed to reduce the time for processing a contact surface and suppress the thinning of the elastic pad even when a large compressive force is applied. The manufacturing method of the structure supporting device includes: a process for preparing basic components including a lower member, an upper member, and an elastic pad; a process of spraying particles such as grit toward a contact surface of the lower member or the upper member to be in contact with the elastic pad, so as to adjust the surface roughness of the contact surface; and an assembling process for assembling the elastic pad between the lower member and the upper member.

Description

Structure supporting device having elastic pad and manufacturing method thereof

The present invention relates to an improvement of a device for supporting a structure, and more particularly to an improvement of a device for supporting a structure having an elastic pad and a method for manufacturing the same.

In general, the structure support device is largely divided into one that is installed at the fixed end, one that allows horizontal displacement in both directions of the bridge axis direction and the direction perpendicular to the bridge axis, and allows horizontal displacement only in one direction of the bridge axis direction.

Among these structure support devices, a disk bearing capable of allowing the inclination of the upper structure while supporting a vertical load using an elastic pad such as a polyurethane disk is used.

1 is an exploded perspective view showing an example of a general disk support.

The disk support 10 shown in FIG. 1 is installed on the elastic pad 12 having a pin hole 11 formed in the center thereof, the lower member 14 installed under the elastic pad 12, and the elastic pad 12 . It has an upper member (16) that becomes The upper surface of the lower member 14 in contact with the elastic pad 12 and the lower surface of the upper member 16 are formed as flat surfaces.

The lower member 14 is fixed to a lower structure such as a pier or an abutment through an anchor nut AN and an anchor bolt AB coupled to the anchor nut AN, and has a pin groove in the center. Anchor nuts (AN) are planted in advance when making substructures such as piers.

The elastic pad 12 has a pin hole 11 in the center, and a circular one is often used. A V-groove 13 for accommodating the expansion during compression is formed along the side surface of the elastic pad 12 .

A shear pin 17 is fixed to the bottom surface of the upper member 16 . The shear pin 17 is inserted into the pin groove formed in the lower member 14 through the pin hole 11 to prevent horizontal displacement of the upper member 16 . The pin groove formed in the lower member 14 is formed with a cross-sectional area larger than the cross-sectional area of the shear pin 17 because the inclination of the upper member 16 must be allowed.

Since the conventional disk support 10 as described above supports the load of an upper structure having a very large load, such as a bridge top plate, in a state of supporting the upper structure, the elastic pad 12 receives a large compressive force. When the elastic pad 12 receives a large compressive force, the frictional resistance between the elastic pad 12 and the lower member 14 and the elastic pad 12 and the upper member 16 is small, so that the elastic pad 12 spreads a lot radially. Severe compression and expansion occurs. In this case, the vertical rotation accommodating ability for allowing the inclination is reduced, and structural problems may occur in the bridge structure due to the reduction in the thickness of the elastic pad 12, and there is a severe step difference in the joint portion installed between the neighboring superstructures. It may occur, and various problems that the elastic pad 12 may be damaged occur.

In order to solve some of the above problems, there is a groove formed in the lower member and the upper member into which a part of the end of the elastic pad can be inserted.

2 is a cross-sectional view showing another example of the conventional disc support, FIG. 3 is a perspective view showing the lower member of the disk support of FIG. 2, and FIG. 4 is a perspective view showing the upper member of the disk support of FIG. 2 when viewed from the bottom.

2 to 4, the upper surface of the lower member 14 is formed with an end insertion groove 18 in which a part of the lower end of the elastic pad 12 is inserted and mounted around the shear pin 17 in the center. . Similarly, an end insertion groove 19 into which a part of the upper end of the elastic pad 12 is inserted and mounted is formed on the bottom surface of the upper member 16 around the pin groove 15 . The upper end of the shear pin 17 is inserted into the pin groove 15 . Each end insertion groove (18, 19) is formed with a slightly larger area than the elastic pad (12).

The assembly state of the lower member 14 and the upper member 16, the shear pin 17 and the elastic pad 12 can be seen from FIG. 2 .

In the state shown in FIG. 2 , when the elastic pad 12 receives a large compressive force, the elastic pad 12 spreads to the edges of the end insertion grooves 18 and 19 while receiving the load of the upper structure in a compressed state. give. At this time, since the inner wall of the groove resists, excessive pressure is generated on the edge of the elastic pad 12 to easily damage the edge of the elastic pad 12, and when the edge of the elastic pad 12 is damaged, the elastic pad 12 Uneven stress is generated in the structure, which is not good.

On the other hand, the present applicant made it possible to apply a polyurethane disk to a pot bearing, thereby remarkably improving the problems such as leakage and damage of rubber, which were pointed out as disadvantages of existing pot bearings, and deterioration of durability due to this. No. 10-0773879 (Title of the invention: Seating device, Inventor: Young-Chul Cho. Hereinafter referred to as "Pre-registered Invention 1") has been patented. Since the pot bearing of the pre-registered invention 1 does not need to form a pin hole, an elastic pad having a relatively large area can be used.

In order to improve the disadvantages of the conventional structure support devices as described above, the present applicant alternately forms anti-spread receiving grooves and anti-spread protrusions on the contact surface with the elastic pad to prevent the surface of the elastic pad receiving a compressive load from spreading radially. One invention was invented and patented under Registration No. 10-2310331 (Title of the invention: a structure support device having an elastic pad, inventor: Cho Young-cheol et al. 4, hereinafter referred to as "pre-registered invention 2"). Although the performance of this pre-registered invention 2 is very good, it is difficult to process the anti-spread receiving grooves and anti-spread protrusions that are arranged alternately, requires expensive processing equipment, and takes a lot of time, so the manufacturing cost is high. there is a point

An object of the present invention is a structure that does not require expensive processing equipment, can dramatically reduce the time required for processing the contact surface, and has an excellent function of preventing the spread of the elastic pad, so that the thickness of the elastic pad is less reduced even when subjected to a large compressive force To provide a support device.

Another object of the present invention is to provide a method for manufacturing a structure support device according to the present invention.

The structure support device manufacturing method according to the present invention is installed between a lower member and an upper member and the lower member and the upper member to buffer and support the vertical load of the upper structure to the lower structure and to receive the rotation of the upper structure Basic parts preparation process to prepare an elastic pad for; Any one of a shot, a grit, and a cut wire formed on at least one of the lower member and the upper member and having a higher hardness than the contact surface toward the contact surface for contacting the elastic pad Or by spraying a combination of two or more particles to adjust the surface roughness of the contact surface to reduce the extent to which the contact surface of the elastic pad spreads radially with respect to the center when the elastic pad receives a compressive force by a vertical load. surface roughness adjustment process by blasting; and an assembling process of assembling the elastic member between the lower member and the upper member so that the to-be-contacted surface is in contact with the contact surface.

In the surface roughness adjustment process, it is preferable to adjust the surface roughness of the contact surface to 70 to 170 μm.

At least one of the upper surface of the lower member and the lower surface of the upper member is formed with an end insertion groove into which a portion of the end of the elastic pad is inserted and mounted, and the surface roughness adjustment process is performed on the bottom of the end insertion groove can be

Occasionally, an elastic pad mounting groove deeper than the thickness of the elastic pad is formed on one of the upper surface of the lower member and the lower surface of the upper member, and the elastic pad mounting groove is not formed on the upper surface and the lower surface of the bottom surface. A piston that is rotatably inserted and mounted in the elastic pad mounting groove is formed, and the surface roughness adjustment process may be performed on at least one of a bottom of the elastic pad mounting groove and an end surface of the piston.

In the surface roughness adjustment process, it is preferable to adjust the surface roughness of the contact surface by spraying the particles with a size of SAE G40 to G18 with a Rockwell C hardness of 60 or more.

In some cases, the surface roughness adjustment process is performed so that the contact surface has a double-structured groove in which the spherical groove by the shot and the irregular groove in the spherical groove by the grit are formed together as the particles, the Rockwell C hardness of 60 or higher. Shot blasting process of spraying a shot having a size of SAE 　 S330 or higher, spraying grit of SAE G40 ~ G18 size smaller than the shot of the shot blasting process as the particles on the contact surface that has undergone the shot blasting process and having a Rockwell C hardness of 60 or more A grit blasting process may be included.

The surface roughness adjustment process may include blasting the contact surface and the upper surface of the lower member outside the contact surface or the lower surface of the upper member together.

and a paint application process of applying paint to the lower member and the upper member between the surface roughness adjustment process and the assembling process, wherein the paint application process may apply paint while leaving the contact surface.

In some cases, the elastic pad has a V groove formed along its circumference, and includes a paint application process of applying paint to the surfaces of the lower member and the upper member between the surface roughness adjustment process and the assembling process, and the paint In the coating process, paint is applied to the surface except for the contact surface, and paint is not applied to the inner area of the area corresponding to the V-groove among the contact surfaces, and the entire perimeter of the outer edge of the area corresponding to the V-groove is applied. At least a portion of the area including the area may be coated with paint.

The structure support device according to the present invention is installed between the lower member and the upper member and the lower member and the upper member to buffer and support the vertical load of the upper structure to the lower structure and elastic for receiving the rotation of the upper structure. In the structure support apparatus having a pad, the injection of particles formed on at least one of the lower member and the upper member and combining any one or two or more of shot, grit, and cut wire A configuration including a contact surface for contacting the elastic pad with increased surface roughness by

The contact surface preferably has a surface roughness of 70 to 170 μm.

The contact surface may include a groove having a double structure in which a spherical groove by the injection of the shot and an irregular groove in the spherical groove by the injection of the grit are formed together.

Paint may be applied to the lower member and the upper member leaving the contact surface.

In some cases, the elastic pad has a V groove formed along its circumference, and paint is applied to the surface of the lower member and the upper member except for the contact surface, and the inner side of the area corresponding to the V groove among the contact surfaces. The paint may not be applied to the surface, and the paint may be applied to at least a partial region including the entire periphery of the outer edge among the regions corresponding to the V-groove.

According to the present invention, when the elastic pad is subjected to a large compressive force by rough adjustment of the surface roughness of the contact surface of the lower member and/or the upper member in contact with the elastic pad by blasting using grit, the elastic pad spreads a lot radially. It can be prevented, and it is possible to prevent the ability to accommodate up-down rotation for allowing the inclination to the superstructure to fall.

According to the present invention, the processing of the contact surface is very easy and takes little time, and expensive equipment for processing the contact surface is not required.

In addition, according to the present invention, it is very easy to prevent a structural problem from occurring in a bridge structure by suppressing a decrease in the thickness of the elastic pad and to prevent a severe step difference from occurring in a joint portion installed between adjacent superstructures.

According to the present invention, foreign substances present on the surface of the lower member or the upper member are cleanly removed by blasting, and the adhesion of the applied paint is high, so that the number of times of paint application can be reduced.

1 is an exploded perspective view showing an example of a general disk support;
2 is a cross-sectional view showing another example of a conventional disk support;
Figure 3 is a perspective view showing the lower member of the disk support of Figure 2;
4 is a perspective view showing the upper member of the disk support of FIG. 2 when viewed from the bottom;
5 is an exploded perspective view showing an example of a structure support device according to the present invention;
Figure 6 is a partially enlarged cross-sectional view for explaining the contact surface of Figure 5;
Figure 7 is a cross-sectional view showing a modified example of the structure support device of Figure 5;
Figure 8 is a perspective view of the lower member of the structure support device of Figure 7,
Figure 9 is a bottom perspective view of the upper member of the structure support device of Figure 7,
10 is a partially enlarged cross-sectional view showing another example of the contact surface of the structure support device according to the present invention;
11 is a process diagram for explaining the manufacturing process of the structure support device according to the present invention;
12 is a process diagram showing an example of a blasting process for adjusting the surface roughness of the contact surface;
13 is a process diagram showing another example of the blasting process for adjusting the surface roughness of the contact surface;
14 is an exploded perspective view showing another example of a structure support device according to the present invention;
15 is an exploded perspective view showing another example of a structure support device according to the present invention;
16 is an exploded perspective view showing another example of the structure support device according to the present invention;
17 is an exploded perspective view showing a modified example of FIG. 5;
18 is an exploded perspective view showing a modified example of FIG. 14;
19 and 20 are cross-sectional views of the structure support device for explaining the paint application range.

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

Figure 5 is an exploded perspective view showing an example of the structure support device according to the present invention, Figure 6 is a partial enlarged cross-sectional view for explaining the contact surface of Figure 5.

The structure support apparatus 100 shown in FIG. 5 has a lower member 110 and an upper member 130 and an elastic pad 150 installed between the lower member 110 and the upper member 130 . The lower member 110 is installed on a lower structure such as a pier and is fixed to the lower structure through an anchor nut (AN) and an anchor bolt (AB). The upper member 130 is installed on the bottom surface of the upper structure, and is fixed to the upper structure by welding or the like.

A pin hole 112 is formed in the central portion of the lower member 110 , and a shear pin 170 is installed on the bottom surface of the upper member 130 . In the pin hole 112, the end of the shear pin 170 is inserted to allow rotation for vertical movement and inclination, but to limit horizontal displacement.

The elastic pad 150 is mainly made of polyurethane to buffer and support the vertical load of the upper structure to the lower structure and to receive the rotation of the upper structure. A pin hole 152 is formed in the central portion of the elastic pad 150 , and a V-groove 154 is formed on the outer circumferential surface. The pin hole 152 allows the shear pin 170 to pass through and be coupled to the pin hole 112, and prevents the elastic pad 150 from moving laterally.

As shown in FIG. 5 , contact surfaces 114 and 134 in contact with the elastic pad 150 are formed on the upper surface of the lower member 110 and the lower surface of the upper member 130 . The contact surfaces 114 and 134 indicate that the surface roughness is increased by spraying grit particles having a jagged and irregular angular profile on the contact surface of the base part made by casting or the like.

Referring to FIG. 6 , the contact surfaces 114 and 134 of this embodiment have irregularly shaped grooves G and protrusions P. The grooves (G) and the projections (P) in the present invention are formed by grit blasting, so that their shapes and angles are irregular and varied.

When it is intended for use in a small structure, the contact surfaces 114 and 134 of at least one of the lower member 110 and the upper member 130 increase the surface roughness by spraying metal particles such as a shot or a cut wire in addition to grit. can do it The peripheral regions outside the contact surfaces 114 and 134 may be blasted together without a mask installed during blasting of the contact surfaces 114 and 134 or may be prevented from being blasted by installing a mask.

In the case of using only shot as a spray particle, there is a limit in increasing the roughness of the contact surfaces 114 and 134, so it is not suitable for use in supporting a medium-to-large heavy structure that weighs a lot. In this case, it is preferable to use grit made of steel as the spray particles. Short or cut wire may be mixed with steel grit depending on the weight of the structure to be supported.

As the surface roughness increases, the spread of the elastic pad 150 due to the compressive load decreases, so that the surface roughness is adjusted in an appropriate range according to the size of the compressive load that the elastic pad 150 receives. The suitable surface roughness is 70~170㎛.

Paint is applied to the surfaces of the lower member 110 and the upper member 130 other than the contact surfaces 114 and 134 to prevent rusting. The portion to which the elastic pad 150 is in close contact is hardly rusted.

However, the portion corresponding to the deepest outer side of the V-groove 154 formed on the circumference of the elastic pad 150 among the contact surfaces 114 and 134 has relatively weak adhesion with the elastic pad 150 compared to the inner side of the contact surface 114 and 134, so it can be easily rusted. Since there is a possibility, the paint can be applied from the outer edge of the contact surfaces 114 and 134 to a position corresponding to the depth of the V-groove 154 or about 1/2 of the depth of the V-groove 154 . . The angle of the V-groove 154 is about 60 degrees, but it may be increased or decreased depending on the application or field conditions.

Figure 7 is a cross-sectional view showing a modified example of the structure support device of Figure 5, Figure 8 is a perspective view of the lower member of the structure support device of Figure 7, Figure 9 is a bottom perspective view of the upper member of the structure support device of Figure 7.

7 to 9 , in some cases, the shear pin 170 may be installed on the lower member 110 , and the pin hole 132 may be installed on the upper member 130 .

In addition, end insertion grooves 116 and 136 into which the ends of the elastic pad 150 can be inserted may be formed in the lower member 110 and the upper member 130 . In this case, the contact surfaces 114 and 134 are formed at the bottom of the end insertion grooves 116 and 136 . The end insertion grooves 116 and 136 prevent the surface of the elastic pad 150 from excessively expanding beyond a certain level even when a load greater than the design load is applied to the structure support device 100 . Of course, the end insertion grooves 116 and 136 as described above may be formed only in any one of the lower member 110 and the upper member 130 .

The upper surface of the lower member 110 and the outer surface of the end insertion grooves 116 and 136 of the lower surface of the upper member 130 may also be blasted together when blasting the contact surfaces 114 and 134 . Even in this case, paint may be applied except for the contact surfaces 114 and 134 or including a portion of the edges of the contact surfaces 114 and 134 .

The lower member 110 and the upper member 130 shown in FIGS. 7 to 9 may be respectively installed between the lower structure and the upper structure through welding or other fixing means. The fixing method of the upper member and the lower member may be variously modified.

The rest is the same as described above.

In the above embodiments, the upper and lower both contact surfaces 114 and 134 have a surface roughness of 70 to 170 μm, for example, 75 μm, 80 μm, 100 μm, 120 μm, 150 μm, etc. When processed to have a thickness reduction without damage to the elastic pad 150, etc., it does not reach the "pre-registered invention 2" patented by the present applicant, but has sufficient anti-spreading effect to be applied in the field. The test method of the anti-spread effect is disclosed in detail on pages 8 to 9 of the detailed description of the "pre-registered invention 2".

10 is a partial enlarged cross-sectional view showing another example of the contact surface of the structure support device according to the present invention.

As shown in FIG. 10 , spherical grooves SG are formed on the contact surfaces 114 and 134 of the lower member 110 and/or the upper member 130 by blasting using a shot, and the spherical grooves SG are formed. Grooves (G) and protrusions (P) having irregular shapes and angles are formed on the inner surface of the spherical grooves (SG) with relatively small grit. Accordingly, the contact surfaces 114 and 134 of this embodiment form a groove having a double structure due to the grooves G and the projections P in the spherical grooves SG. In this case, instead of the inconvenience of having to perform blasting twice on one contact surface 114 and 134, the area of the curved surface of the contact surfaces 114 and 134 increases so that the surface of the elastic pad 150 becomes radial. to more effectively prevent the spread of Even in this case, when the upper and lower both contact surfaces 114 and 134 are processed to have a surface roughness of 70 to 170 μm, an excellent anti-spreading effect is provided without damage to the elastic pad 150 .

11 is a process chart for explaining the manufacturing process of the structure support device according to the present invention, Figure 12 is a process diagram showing an example of the blasting process for adjusting the surface roughness of the contact surface. It will be described with reference to the previous FIGS. 5 to 10 together.

First, basic parts for making the structure support device 100 such as the lower member 110 , the upper member 130 , and the elastic pad 150 are prepared ( S1 ). It is suitable that the lower member 110 and the upper member 130 are made by casting using cast iron. It is suitable for the elastic pad 150 to be made of polyurethane, which may be used as a commercially available polytron disk.

Then, the lower member 110 and/or the upper member 130 is mounted and fixed to the structure in front of the spraying device that sprays particles such as grit, and then SAE G40, SAE G25, Adjust the surface roughness of the contact surfaces 114 and 134 to 70 to 170 μm by spraying metal particles such as grit of SAE G18 (0.7 to 1.2 mm) at a distance of 45 to 60 cm at a speed of 50 to 80 m/sec. do (S2). SAE G40 is suitable for forming a surface roughness of about 70~90㎛, SAE G25 is suitable for forming a surface roughness of 90~125㎛, and SAE G18 is suitable for forming a surface roughness of 125~170㎛.

At this time, blasting is performed on the entire upper surface of the lower member 110 and/or the lower surface of the upper member 130 on which the contact surfaces 114 and 134 are formed, or blasting can be performed only on the contact surfaces 114 and 134 using a mask. have.

Here, the hardness of the sprayed particles uses a minimum Rockwell C hardness of 60. Particles with a Rockwell C hardness of 60 to 65 are suitable. In the case of a small structure support device in which the compressive load applied to the elastic pad 150 is very small, a shot may be used as the particle to be sprayed. As the short stroke, those having the same size as the grit SAE S280, SAE S330, and SAE S390 may be used, and a cut wire of the same size may be used. In some cases, two or more of the above-described particles may be mixed and sprayed.

Referring to FIG. 12 , blasting only on the contact surfaces 114 and 134 will be described as follows.

The process of adjusting the surface roughness of the contact surfaces 114 and 134 is performed after fixing the lower member 110 and/or the upper member 130 (S21), and then the lower member 110 so that only the contact surfaces 114 and 134 are exposed. And/or a mask is installed on the upper member 130 (S22). After that, as described above, blasting is performed on the contact surfaces 114 and 134 with grit or the like (S23).

After blasting of the contact surfaces 114 and 134 is completed, the mask is removed and paint is applied to the surface of the other parts except for the contact surfaces 114 and 134 of the lower member 110 and the upper member 130. . Occasionally, a portion of the outer edge of the contact surfaces 114 and 134, that is, a portion corresponding to the V-groove 154 of the elastic pad 150 or to a position corresponding to 1/2 of the depth of the V-groove 154 Paint can be applied (S3).

After drying the applied paint, the lower member 110, the upper member 130, and the elastic pad 150 are assembled (S4).

13 is a process diagram showing another example of the blasting process for adjusting the surface roughness of the contact surface.

Referring to FIG. 13 , in some cases, the process of adjusting the surface roughness of the contact surfaces 114 and 134 is performed after fixing the lower member 110 and/or the upper member 130 ( S21 ), and then the contact surfaces 114 and 134 . ), a mask is installed on the lower member 110 and/or the upper member 130 so that only the exposed (S22). This process is the same as in FIG. 12 .

Then, before grit blasting (S23) to the contact surfaces (114, 134), a shot is sprayed toward the contact surfaces (114, 134) (S24). In this case, a shot furnace having a larger particle size than the grit used for grit blasting is used. If the particle size of the grit is 0.7 mm, particles having a size of 1.0 mm, 1.2 mm, 1.4 mm, 1.7 mm, 2.0 mm, 2.5 mm, etc. may be used for the shot. If the particle size of the grit is 1.0 mm, particles having a size of 1.4 mm, 1.7 mm, 2.0 mm, 2.5 mm, etc. can be used for the shot, and if the particle size of the grit is 1.2 mm, the shot is 1.7 mm, 2.0 mm, 2.5 mm Particles having the same size may be used (S24).

In addition, before shot blasting, the contact surfaces 114 and 134 may be heated to about 300 to 500 degrees Celsius with a torch or the like. This is to prevent damage to the surface due to the collision of relatively large and heavy shot particles when blasting using a shot, and to increase the hammer effect due to the collision of the shot.

Blasting the contact surfaces 114 and 134 using a shot so that the relatively large spherical grooves SG described above are formed on the contact surfaces 114 and 134, and then blasting with grit of a relatively smaller particle size than the shot. Adjust the surface roughness (S23). Accordingly, grooves having a double structure as described above with reference to FIG. 10 are formed on the contact surfaces 114 and 134 .

14 is an exploded perspective view showing another example of the structure support device according to the present invention.

This embodiment is configured in the form of a pot bearing, and shows that the elastic pad mounting groove 118 is formed on the upper surface of the lower member 110 . The elastic pad mounting groove 118 is formed wider than the width of the elastic pad 150 and deeper than the thickness of the elastic pad 150 . The elastic pad 150 is completely accommodated in the elastic pad mounting groove 118 in a state mounted on the elastic pad mounting groove 118, and the contact surface 114 by blasting is the bottom of the elastic pad mounting groove 118. is formed in An end mounting groove 116 into which a portion of the lower end of the elastic pad 150 can be inserted may or may not be formed on the bottom of the elastic pad mounting groove 118 . Flanges 120 having fastening holes for fixing to lower structures such as piers through anchor bolts or the like are installed along the outer side of the lower member 110 .

Unlike the previous embodiment, the elastic pad 150 used in the pot bearing type structure support device 100 according to the present invention does not need to form a pin hole in the center, so it can support a larger load than in the previous embodiment. have.

The upper member 130 of this embodiment has a piston 138 formed to protrude downward from the bottom. The piston 138 is rotatably inserted into the elastic pad mounting groove 118 and serves as the shear pin of the previous embodiment. In addition, the piston 138 is a portion supporting the load of the upper structure to the elastic pad 150 , and the bottom surface is in contact with the upper surface of the elastic pad 150 . An end insertion groove 136 into which a part of the upper end of the elastic pad 150 can be inserted and mounted is formed on the bottom surface of the piston 138, and the surface of the inner bottom of the end insertion groove 136 is formed by blasting. A contact surface 134 is formed. In some cases, the contact surface 134 may be formed by blasting without the end insertion groove 136 . In some cases, only the end insertion groove 136 is formed, and the contact surface formed on the bottom of the end insertion groove 136 may be formed smoothly. In addition, in some cases, the contact surface of the bottom surface of the piston 138 constituting the upper member 130 may be formed with a smooth surface without the end insertion groove 136 and without blasting. Even in this case, paint may not be applied to the contact surfaces 114 and 134 in contact with the elastic pad 150 , and paint may be applied to the remaining portions. In some cases, paint may also be applied to some of the outer edges of the contact surfaces 114 and 134 . Depending on the type of the upper structure, flanges having fastening holes formed thereon for fixing to the upper structure such as the bridge upper plate through anchor bolts or the like may be installed along the outer side of the upper member 130 as well.

The pot bearing type structure support device 100 shown in FIG. 14 is installed at the fixed end of the bridge to prevent horizontal displacement of the upper structure while receiving rotation or inclination of the upper structure in the vertical direction.

The rest is the same as described above.

15 is an exploded perspective view showing another example of the structure support device according to the present invention.

In some cases, a guide portion 139 is formed on the upper surface of the upper member 130 in one direction, such as the throttle direction, and has a guide portion 182 coupled to the guide portion 139 above the upper member 130 . The sliding member 180 may be installed to be horizontally displaceable in one direction. In this case, a sliding material (ST) made of a stainless steel plate or the like is installed on the surface contacting surface of the sliding member 180, and the upper surface of the upper member 130 is made of a brass plate with grooves filled with PTFE, engineering plastic, graphite, etc. A sliding material SM is installed.

The structure support device 100 of this embodiment is installed at the one-way movable end to allow horizontal displacement of one side of the structure in the throttle direction, etc. while allowing for inclination in all directions.

The rest are the same as described above with reference to FIG. 14 .

16 is an exploded perspective view showing another example of the structure support device according to the present invention.

In some cases, without forming a guide part as described in FIG. 14 on the upper surface of the upper member 130, a sliding member 180 slidable in both directions is installed above the upper member 130 to support the structure according to the present invention. The device 100 may be configured.

The structure support device 100 of this embodiment is installed at the movable end in both directions.

The rest is the same as described with reference to FIG. 15 .

17 is an exploded perspective view illustrating a modified example of FIG. 5 .

In some cases, the entire upper surface of the lower member 110 and/or the lower surface of the upper member 130 may be blasted with grit and paint may be applied while leaving the contact surfaces 114 and 134 . Optionally, some of the outer edges of the contact surfaces 114 and 134 may also be painted along with the outer surfaces.

The rest are the same as described in FIG. 5 .

18 is an exploded perspective view illustrating a modified example of FIG. 14 .

In some cases, the above-described end insertion grooves 116 and 136 may not be formed on the upper surface of the lower member 110 and the lower surface of the upper member 130 . In this embodiment, the upper surface of the lower member 110 on which the contact surfaces 114 and 134 are formed and the entire bottom surface of the upper member 130 are blasted together when blasting the contact surfaces 114 and 134 by grit or the like. show

In this case, the mask installation (S22) process before blasting described in FIGS. 12 and 13 is omitted.

The rest are the same as described above with reference to FIG. 14 .

19 and 20 are cross-sectional views of the structure support device for explaining the paint application range.

Referring to FIG. 19 , an end insertion groove into which an end of the elastic pad 150 is inserted may not be formed on the upper surface of the lower member 110 and/or the lower surface of the upper member 130 . In addition, paint may not be applied to the contact surfaces 114 and 134 , and paint may be applied to the other surfaces.

Referring to FIG. 20 , paint is not applied to the area A of the contact surfaces 114 and 134 except for the portion corresponding to the V-groove 154 . Among the contact surfaces 114 and 134 , the region B corresponding to the V-groove 154 is painted on the entire surface or a portion of the outer edge, for example, corresponds to a half of the depth of the V-groove 154 . Paint may be applied along the entire perimeter of the surface.

Paint should be applied to the area C outside the contact surfaces 114 and 134 .

The rest are the same as described above with reference to FIG. 5 .

The present invention has the potential to be used to make a structure support device having an elastic pad for allowing the inclination of the superstructure while elastically supporting the load of the superstructure.

100: structure support device 110: lower member
112, 132: pin hole 114, 134: contact surface
116, 136: end insertion groove 118: elastic pad mounting groove
130: upper member 138: piston
139: guide 150: elastic pad
180: sliding member 182: guided part

Claims (14)

The lower member and the upper member and the elastic V-groove formed along the periphery is installed between the lower member and the upper member to buffer and support the vertical load of the upper structure to the lower structure and to receive the rotation of the upper structure. Basic parts preparation process to prepare the pad;
Any one of a shot, a grit, and a cut wire formed on at least one of the lower member and the upper member and having a higher hardness than the contact surface toward the contact surface for contacting the elastic pad Or by spraying a combination of two or more particles to adjust the surface roughness of the contact surface to reduce the extent to which the contact surface of the elastic pad spreads radially with respect to the center when the elastic pad receives a compressive force by a vertical load. surface roughness adjustment process by blasting;
an assembling process of assembling the elastic pad between the lower member and the upper member so that the contact surface is in contact with the contact surface; and
a paint application process of applying paint to the surfaces of the lower member and the upper member between the surface roughness adjustment process and the assembling process;
In the paint application process, paint is applied to surfaces other than the contact surface, paint is not applied to the inner area of the area corresponding to the V-groove among the contact surfaces, and paint is not applied to the area corresponding to the V-groove. or at least a partial area including the entire outer edge of the area corresponding to the V-groove is coated with paint,
The surface roughness adjustment process is performed with the particles made of a metal having a size of 0.7 to 1.2 mm with a Rockwell C hardness of 60 or higher against the contact surface and the upper surface of the lower member or the lower surface of the upper member outside the contact surface. Including adjusting the surface roughness of the contact surface to 70 ~ 170㎛ by spraying,
When the elastic pad is subjected to a compressive force by the superstructure, the elastic pad spreads radially and suppresses a decrease in the thickness of the elastic pad, thereby preventing the vertical rotation accommodating ability for allowing the inclination to the superstructure from falling. A method of manufacturing a structure support device, comprising: delete The method of claim 1, wherein at least one of the upper surface of the lower member and the lower surface of the upper member is formed with an end insertion groove into which a portion of the end of the elastic pad is inserted and mounted, and the surface roughness adjustment process comprises the end insertion groove. A method of manufacturing a structure support device, characterized in that it is carried out for the bottom of the. The elastic pad mounting groove of claim 1, wherein an elastic pad mounting groove deeper than the thickness of the elastic pad is formed in any one of the upper surface of the lower member and the lower surface of the upper member, and the elastic pad mounting groove is not formed in the upper surface and the bottom surface. There is formed a piston which is rotatably inserted and mounted in the elastic pad mounting groove,
The surface roughness adjustment process is a structure support device manufacturing method, characterized in that the at least one of the bottom surface of the elastic pad mounting groove and the end surface of the piston is performed. delete The method of claim 1, wherein the surface roughness adjustment process is performed so that the contact surface has a double-structured groove in which the spherical groove by the shot and the irregular groove in the spherical groove by the grit are formed together as the particle, Rockwell C hardness 60 Shot blasting process of spraying shots with a size of SAE S330 or higher, and spraying grit of SAE G40 ~ G18 size smaller than the shot of the shot blasting process as the particles on the contact surface that has undergone the shot blasting process and has a Rockwell C hardness of 60 or higher A method of manufacturing a structure support device, characterized in that it comprises a grit blasting process. delete delete delete In a structure support device having a lower member and an upper member and an elastic pad installed between the lower member and the upper member to buffer and support the vertical load of the upper structure to the lower structure and to receive the rotation of the upper structure, ,
The elastic pad is a V-groove formed along the circumference,
A metal having a size of 0.7 to 1.2 mm with a Rockwell C hardness of 60 or more formed on at least one of the lower member and the upper member and combining any one or two or more of shot, grit, and cut wire particles are sprayed together against the contact surface with the elastic pad and the upper surface of the lower member or the lower surface of the upper member outside the contact surface, so that the surface roughness of the contact surface is 70 to 170 μm, and ,
Paint is applied to surfaces other than the contact surface, paint is not applied to the inner area of the area corresponding to the V groove among the contact surfaces, and paint is not applied to the area corresponding to the V groove or in the V groove. Including paint applied to at least a partial area including the entire perimeter of the outer edge of the corresponding area;
When the elastic pad is subjected to a compressive force by the superstructure, the elastic pad spreads radially and suppresses a decrease in the thickness of the elastic pad, thereby preventing the vertical rotation accommodating ability for allowing the inclination to the superstructure from falling. Structural support device comprising a structure. delete 11. The apparatus of claim 10, wherein the contact surface has a double structure groove in which a spherical groove by the injection of the shot and an irregular groove in the spherical groove by the injection of the grit are formed together. delete delete

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