KR100965236B1 - Truss bridge for absorbing vibration - Google Patents

Abstract

The present invention relates to a truss bridge capable of absorbing vibration applied from the outside to stably support the upper structure of the bridge including the truss. It comprises a bridge for transferring to the piers, the first buffer means provided between the truss and the piers and the second buffer means provided between adjacent trusses.

At this time, the first and the second buffer means is made of a metal spring and the silicone resin material integrally absorbs the vibration applied from the outside and at the same time reduces the vibration response generated by the applied vibration to the upper structure of the bridge including the truss Can be stably supported.

Bridge, Truss, Pier, Bridge, Shock Absorber, Spring, Elastic

Description

Truss bridge which can absorb vibration {TRUSS BRIDGE FOR ABSORBING VIBRATION}

The present invention relates to a truss bridge capable of absorbing vibration, and more particularly, to a truss bridge capable of absorbing vibration capable of stably supporting an upper structure of a bridge including a truss by absorbing vibrations applied from the outside.

Today, with the development of structural engineering and the use of high-strength materials in the field of construction and civil engineering, structures are becoming larger and lighter in weight. In particular, in the field of construction, high-rise buildings or bridges with very low structural rigidity and damping ratio are increasing day by day. In accordance with this trend, vibration control technology has been developed to secure vibration control technology in extreme situations such as earthquake loads of structures, wind loads, and vibration acceleration control of buildings against internal and external vibration sources. .

Most domestic buildings, however, are looking for ways to compensate for earthquakes in the early design stages of the building, and to supplement the stiffness of the building with structural analysis. In this respect, seismic devices that can absorb vibration, vibration damping and shock are continuously developed. Among the seismic means currently developed, the seismic means using the anti-vibration spring has a large limit on the application because the vibration isolation effect is great in the dust-proof area, but excessive vibration response occurs, whereas the seismic means using the anti-vibration rubber suppresses the excessive vibration response. However, due to the large loss factor of the material itself compared to the metal, there is a problem that the vibration insulation effect is inferior in the dustproof region.

Accordingly, the present invention is to solve the above-mentioned problems by using a buffer means made of metal and synthetic resin to absorb the vibration applied from the outside and at the same time reduce the vibration response to stably support the upper structure of the bridge including the truss An object of the present invention is to provide a truss bridge capable of absorbing vibration.

The truss bridge capable of absorbing vibration according to the present invention for achieving the above object is a truss, a bridge for supporting the load of the truss, a bridge for transferring the load of the truss to the bridge, first buffer means provided between the truss and the bridge And second cushioning means provided between adjacent trusses.

The first shock absorbing means may include an elastic member, a pair of plates spaced apart from the inside of the elastic body by a predetermined distance, and a cushioning member including a spring provided between the plates, and a portion of the cushioning member inserted into a bottom surface of the truss. It consists of a housing.

Alternatively, the first cushioning means may include an elastic body, a plate attached to one surface of the elastic body, a cushioning member including a spring and an anchor in contact with one surface of the plate and positioned inside the elastic body, and a housing into which the shock absorbing member is partially inserted. It is composed.

In addition, the second buffer means is composed of a vibration damper and a connecting rod for connecting the vibration damper respectively installed in the adjacent truss, the vibration damper is a cylinder, a pair of pistons for partitioning the interior of the cylinder into a plurality of spaces A first cushion member positioned between the pair of pistons, one end of which is rotatably coupled to a pier or an upper structure, and the other end of which is a piston rod integrally formed with the piston, a plurality of second cushioning members fitted to the piston rod, A washer fitted between the second cushion member and a lid for sealing both ends of the open cylinder.

The truss bridge capable of absorbing vibration according to the present invention includes a truss by absorbing vibration applied from the outside and reducing vibration response by using first and second shock absorbing means made of a spring of a metal material and an elastic body of a synthetic resin material. It is possible to stably support the superstructure of the bridge. In addition, in the case of the anti-vibration damper, the structure is simple, easy to install, dismantle, repair, there is an advantage that can extend the service life when oil is periodically injected.

With reference to the accompanying drawings will be described embodiments of the present invention;

1 and 2 are a side view and a plan view showing an embodiment of a truss bridge capable of vibration absorption according to the present invention.

As shown in Figure 1 and 2, the truss bridge (100) capable of absorbing vibration in accordance with the present invention, the truss 110 and the pier 120 for supporting the load of the upper structure including the truss (110) And, between the bridge 130 for transmitting the load of the truss 110 to the bridge 120, between the first buffer means 200 and the adjacent truss 110 provided between the truss 110 and the bridge 120 It is configured to include a second buffer means 300 is provided. At this time, the truss 110, the pier 120, the bridge 130 and the like except for the first and second shock absorbing means (200, 300) are the same or similar to each of the components applied to the general truss bridge, so The description will be omitted.

Looking at the first and second buffer means (200, 300) described above with reference to Figures 3 to 7 as follows.

3 is a perspective view illustrating the first shock absorbing means shown in FIG. 1, and FIG. 4 is a perspective view illustrating the shock absorbing member among the first shock absorbing means of FIG. 1.

As shown in FIGS. 3 and 4, the first shock absorber 200 is a means for absorbing or reducing vibrations and shocks applied from the truss (110 of FIG. 1) or the pier (120 of FIG. 1). Looking at the configuration is installed on the bottom of the truss 110 and a predetermined space therein is provided a housing 210, one side is open, one end is inserted into the housing 210 and the other end is on the upper side of the pier 120 It consists of a buffer member 220 in contact.

Of the above-described components, the housing 210 is formed integrally with the cylindrical tube 212 and one end of the buffer member 220 and the cylindrical tube 212 to be in contact with the bracket 140 to be described later. The horizontal member 214 to be coupled, a plurality of reinforcement 216 for increasing the coupling force between the cylindrical tube 212 and the horizontal member 214, and a bolt for coupling the housing 210 and the bracket 140 It consists of a coupling hole 218 to pass through. In addition, the buffer member 220 is an elastic body 222 formed in a cylindrical shape as shown in Figure 3, a pair of plates 224 spaced apart a predetermined distance inside the elastic body 222, the play It is composed of a spring 226 is provided between the teeth 224. At this time, the cross section of the housing 210 and the buffer member 220 is formed in a circular shape, but is not necessarily limited thereto, and may be formed in a polygon including a quadrangle according to a user's needs.

Here, the elastic body 222 is a silicone resin, which is stable at -260 to 80 ° C., and is mainly used to coat plastics or metals due to its excellent adhesion, and has excellent vibration absorption. In addition, the spring 226 is made of heat-treated steel bar, by absorbing and accumulating energy using the elastic deformation is excellent in the buffering effect against large vibrations. Accordingly, the shock absorbing member 220 can stably support the upper structure of the bridge (100 of FIG. 1) by absorbing the vibration applied from the outside and reducing the vibration response generated by the applied vibration.

 The first shock absorbing means 200 configured as described above may be provided in plural along the upper circumference of the bridge 120 to effectively absorb or reduce vibrations and shocks applied in the longitudinal direction and / or the perpendicular direction of the bridge 100. have.

Meanwhile, referring to FIG. 1, when the truss 110 is spaced apart from the pier 120 or the bottom surface of the truss 110 is inclined at an upper portion of the first shock absorbing means 200, an installation height of the first shock absorbing means 200 is provided. And the bracket 140 for adjusting the angle is provided. In addition, a portion of the upper circumference of the pier 120 which is in contact with the buffer member 220 is provided with a contact plate 150 for preventing the buffer member 220 from being directly contacted with the pier 120 and being damaged.

5 is a perspective view showing the second shock absorbing means shown in FIGS. 1 and 2, and FIGS. 6 and 7 are exploded perspective views and cross-sectional views showing the vibration damper shown in FIG.

As shown in FIGS. 5 to 7, the second shock absorber 300 is rotatably coupled to the universal joint 310 and the universal joint 310 installed at the upper end of the truss (110 of FIG. 2). It is composed of a vibration damper 330 and the connecting rod 320 connecting the vibration damper 330. In this case, the second shock absorbing means 300 is provided in pairs and installed in an X shape, but is not necessarily limited thereto, and the number of the second shock absorbing means 300 may be increased or decreased according to the needs of the user.

The universal joint 310 of the above-described components is a joint of the general type that can be rotated about the horizontal axis at the same time the vibration damper 330 is rotatably coupled, the connecting rod 320 is a vibration damper 330 at both ends ) Are rods of various shapes that can be combined in a rotatable form, so a detailed description thereof will be omitted.

On the other hand, the vibration damper 330 is formed integrally with the cylinder 340, a pair of pistons 352 for partitioning the inside of the cylinder 340 into a plurality of spaces, and the piston 352, one end is Absorbing and reducing vibration applied between the piston rod 354 and the pair of pistons 352 rotatably coupled to the universal joint 310 to protrude to the outside of the cylinder 340 and applied from the outside. The cover 390 is coupled to the first cushioning material 360, the plurality of second cushioning material 370 and the washer 380 located opposite the first cushioning material 360, and the open ends of the cylinder 340 It is configured to include).

Each component of the above-described vibration damper 330 will be described in more detail.

The cylinder 340 is formed in a cylindrical shape so that the piston 352, the first cushioning material 360, the second cushioning material 370 and the washer 380 can be positioned therein, both ends of the above-mentioned components. 352 to 380 are opened to allow replacement and repair, and a plurality of oil injection holes 342 are formed on the outer circumferential surface thereof. In this case, the oil injection hole 342 is to inject a silicone softener for preventing the first and second cushioning materials (360, 370) is hardened, the silicone softener injected through the cylinder 340 and Spread evenly through the gap between the above-described components (352 ~ 160).

As described above, one end of the piston rod 354 is rotatably coupled to the universal joint 310, and the other end is integrally formed with the piston 352 that divides the inside of the cylinder 340 into a plurality of spaces. It is formed to transmit the vibration applied from the truss 110 and the bridge 120 of the bridge (100 of Figure 2) to the first and second cushioning material (360, 370).

The first cushioning material 360 is a means for absorbing and reducing vibrations applied from the truss 110 and the piers 120. The cylindrical cushioning body 362 having a predetermined length and the inside of the elastic body 362 are provided. It is composed of a spring 364 provided in. At this time, the elastic body 362 is made of a silicone resin, the spring 364 is made of heat-treated steel bar, such as the buffer member 200 of the first buffer means 200 absorbs the vibration applied from the outside At the same time, it is possible to stably support the upper structure of the bridge (100 in FIG. 2) by reducing the vibration response generated by the applied vibration.

The second cushion member 370 and the washer 380 are also means for absorbing and reducing vibrations applied from the truss 110 and the piers 120. The second cushion member 370 is made of silicone resin and the washer 380. ) Is made of steel to play the same role as the elastic body 362 and the spring 364 of the first cushioning material 140. Looking at the shape, the second cushion member 370 and the washer 380 are each formed in a disc shape having a predetermined thickness, and through holes 372 and 382 are formed at the center thereof so that the piston rod 354 can pass therethrough. It is formed and fitted to the piston rod 354 during installation.

 Herein, the size of the elastic body 362 constituting the first cushioning material 360 and the material and strength of the spring 364 provided therein may be increased or decreased in proportion to the weight of the bridge and the magnitude of the expected vibration. In addition, the number of the second cushioning material 370 and the washer 380 may be increased or decreased in proportion to the weight of the bridge and the magnitude of the expected vibration.

The cover 390 is coupled to both ends of the open cylinder 340 to close the piston 352, the first cushioning material 360, the second cushioning material 370, and the washer 380, and at the same time, As a means for sealing the inside, the shape thereof is formed into a disc shape having a predetermined thickness, and a through hole 392 is formed at the center thereof so that the piston rod 354 can pass therethrough, and a thread 394 on the outer circumferential surface thereof. ) Is formed. Therefore, the cover 390 is detachably coupled to the cylinder 340, it is possible to easily replace and repair the components (352 ~ 380) provided therein. In addition, the above-described components 352 to 380 may be added or removed as necessary.

8 and 9 show another embodiment of the truss bridge capable of absorbing vibration according to the present invention.

As shown in FIG. 8 and FIG. 9, the truss bridge 100 capable of absorbing vibration according to the present invention includes a truss 110 including a girder 112, a truss 110, and a girder 112. Pier 120 to support the load of the upper structure to be provided, the bridge 130 and the bridge 130 to transfer the load of the superstructure to the bridge 120 is provided between the girder 112 and the bridge 120, the upper surface of the bridge 120 It is configured to include a second buffer means 300 is provided between the first buffer means 400 and the truss 110 adjacent to the bottom of the girder 112 to the side contact. At this time, the truss 110, the pier 120, the bridge 130 and the second buffer means 300, except for the first buffer means 400 is the same as or similar to each of the components of the above-described embodiment Detailed description thereof will be omitted.

Looking at the first buffer means 400 described above with reference to FIGS. 10 and 11 as follows.

FIG. 10 is a perspective view showing the first shock absorbing means shown in FIGS. 8 and 9, and FIG. 11 is a perspective view showing the shock absorbing member among the first shock absorbing means of FIG. 10.

As shown in FIGS. 9 and 10, the first shock absorbing means 400 is installed on the upper surface of the piers (120 of FIG. 8) and has a predetermined space therein, and a housing 410 having one side opened and one end thereof. The shock absorbing member 420 is inserted into the housing 410 and the other end contacts the protruding end of the girder 112 of FIG. 8.

Of the above-described components, the housing 410 is formed integrally with the square tube 412, one end of the buffer member 420 is inserted, and the square tube 412 to be in contact with the upper surface of the piers 120 Horizontal member 414 to be coupled, a plurality of reinforcement 416 to increase the coupling force between the square tube 412 and the horizontal member 414, bolts for coupling the housing 410 and the bracket 140 It consists of a coupling hole 218 is penetrated. In addition, the buffer member 420 is an elastic body 422 formed in a rectangular shape as shown in FIG. 10, a plate 424 attached to one surface of the elastic body 422, and one surface of the plate 424. And anchors 428 and springs 426 in contact with and positioned inside the elastic body 422.

 At this time, the elastic body 422 is made of a silicone resin, the spring 426 and the anchor 428 is made of heat-treated steel bar, as shown in the embodiment absorbs the vibration applied from the outside and is applied at the same time It is possible to stably support the upper structure of the bridge (100 in FIG. 7) by reducing the vibration response generated by the vibration.

As described above, the configuration of the vibration-absorbing truss bridge according to a preferred embodiment of the present invention has been shown according to the above description and drawings, but this is only an example and within the scope not departing from the technical spirit of the present invention. It will be appreciated by those skilled in the art that various changes and modifications are possible.

1 and 2 are a side view and a plan view showing an embodiment of a truss bridge capable of vibration absorption according to the present invention.

3 is a perspective view showing the first shock absorbing means shown in FIG.

4 is a perspective view showing a buffer member of the first buffer means of FIG.

FIG. 5 is a perspective view of the second shock absorber shown in FIGS. 1 and 2; FIG.

6 and 7 are exploded perspective and sectional views showing the vibration damper shown in FIG.

8 and 9 illustrate another embodiment of the truss bridge capable of absorbing vibration according to the present invention.

10 is a perspective view of the first shock absorber shown in FIGS. 8 and 9;

FIG. 11 is a perspective view illustrating a buffer member of the first buffer means of FIG. 10; FIG.

* Description of the symbols for the main parts of the drawings *

100: truss bridge 110: truss

120: bridge 130: bridge

140: bracket 150: contact plate

200: first buffer means 210: housing

220: buffer member 300: second buffer means

310: universal joint 320: connecting rod

330: damper damper 340: cylinder

360: first cushion member 370: second cushion member

Claims (10)

Truss; Pier supporting the load of the truss; A bridge for transferring the load of the truss to the piers; First cushioning means provided between the truss and the piers; And A second shock absorbing means provided between adjacent trusses; The first shock absorbing means is an elastic body, a buffer member including a pair of plates spaced apart from the inside of the elastic body and a spring provided between the plate, and a portion of the shock absorbing member is installed on the bottom of the truss is inserted Consists of a housing, The second cushioning means is a truss bridge capable of absorbing vibration, characterized in that the universal joint is installed at the end of the truss, a vibration damper rotatably coupled to the universal joint and a connecting rod connecting the vibration damper. delete The method of claim 1, Truss bridge capable of absorbing vibration, characterized in that the contact plate is provided on the side of the bridge in contact with the first buffer means. delete delete delete The method of claim 1, The vibration damper is, cylinder; A pair of pistons partitioning the inside of the cylinder into a plurality of spaces; A first cushioning material positioned between the pair of pistons; A piston rod having one end rotatably coupled to the piers or the upper structure and the other end integrally formed with the piston; A plurality of second cushioning materials fitted to the piston rod; A washer fitted between the second cushioning material; And A cover for sealing both ends of the open cylinder; Truss bridge capable of absorbing vibration, characterized in that it comprises a. The method of claim 7, wherein The first cushion material is an anti-vibration damper, characterized in that consisting of a spring provided inside the elastic body and the elastic body. The method of claim 8, The elastic body and the second cushioning material is a damper, characterized in that made of silicone resin. The method of claim 9, The second shock absorbing means is composed of a pair of vibration absorbing truss bridge, characterized in that installed in the X-shape.

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