KR102097567B1 - Expansion and contraction joint apparatus for preventing noise and slip - Google Patents

Abstract

An expansion and contraction joint apparatus for preventing noise and a slip is disclosed. The expansion and contraction joint apparatus for preventing noise and a slip according to the present invention includes: a pair of finger plates which are provided to face each other on an upper part of a bridge, wherein a plurality of finger protrusions and finger grooves are successively and repeatedly formed on opposite surfaces, and the facing finger protrusions are arranged in the shape of crossing bars; and a slip prevention unit which is provided on the upper surface of the finger plates and prevents vibration noise generated when a vehicle passes and skidding of the vehicle.

Description

Expansion joint for noise and non-slip {EXPANSION AND CONTRACTION JOINT APPARATUS FOR PREVENTING NOISE AND SLIP}

The present invention relates to an expansion joint device for preventing noise and slip.

In general, a bridge is composed of a number of piers built on the ground and a top plate (top slab) installed on top of the bridge, and the top plate is constructed by interconnecting a plurality of block structures.

At this time, the block structure constituting the top plate is installed at regular intervals in the construction process due to the expansion and contraction according to the temperature change. In addition, a flexible joint device is installed at the connection portion between the top plates to promote safe driving of the vehicle and to prevent intrusion of foreign substances.

1 is a perspective view showing a telescopic joint device according to Korean Registered Utility Model No. 20-0335445, and FIG. 2 is a front view showing a telescopic joint device according to FIG. 1.

1 and 2, the expansion and contraction device 200 according to the prior art is installed opposite to the base plate 1 installed on the upper portion of the block structure B and the upper portion of the base plate 1, the base A pair of finger plates 210 and 210a fixed to the plate 1 with bolts 270 and a waterproof device 260 provided between the block structures B.

In addition, the waterproof device 260 is formed at one end of the fixing member 262 and the fixing member 262 inserted between the pair of finger plates 210 and 210a and the base plate 1, and is bent downward to block the structure. It includes a support member 230 that is in close contact with the side of (B), and a waterproof member 250 that is elastically provided between the support members 230 and blocks foreign matter and moisture flowing into the inside.

However, the expansion joint device 200 according to the prior art generates noise as the pair of finger plates 210 and 210a are vibrated by the load of the vehicle when the vehicle passes, and the wheels are finger plates 210 and 210a due to rain water and the like. There was a problem that the phenomenon of slipping on the upper surface of.

Republic of Korea Utility Model No. 20-0335445 (announced on December 6, 2003)

Therefore, the technical problem to be solved by the present invention is to provide a noise and non-slip expansion joint device capable of preventing vibration noise and slipping of the wheel generated when a vehicle passes.

According to an aspect of the present invention, provided on the upper part of the bridge to be mutually opposite, a plurality of finger acids and finger grooves are continuously formed on the opposite surfaces, and the finger acids facing each other are arranged in a staggered cross shape. A pair of finger plates; And it is provided on the upper surface of the finger plate, the noise and anti-skid portion for preventing vibration and noise generated when the vehicle is passing through the vehicle can be provided with a noise and anti-skid telescopic joint device.

The noise and anti-slip portion is an elastic body of a wear-resistant material installed on the upper surface of the finger plate; And irregularities formed on the upper surface of the elastic body.

The elastic body may be made of epoxy or elastic rubber.

The elastic body is an ethylene vinyl acetate resin layer, an ethylene vinyl acetate / polyurethane composite resin layer, a polyurethane resin layer, an ethylene vinyl acetate / polyurethane composite resin layer and an ethylene vinyl acetate resin layer sequentially stacked in the height direction. Multilayer resin layer; And a polyurea / polyphenylsulfone composite resin coating layer coated on the surface of the multilayer resin layer.

In the ethylene vinyl acetate / polyurethane composite resin layer, an ethylene vinyl acetate resin and a polyurethane resin are blended at a ratio of 1: 0.5 to 2 to form a foam, and the polyurea / polyphenylsulfone composite resin coating layer is polyurea 95 to 99.5 The polyurea / polyphenylsulfone composite resin coating layer may be coated on the surface of the multi-layer resin layer with a thickness of 0.01 to 3 mm, by blending with 0.5% by weight and 0.5 to 5% by weight of polyphenylsulfone.

It is provided on the upper surface of the finger plate, and is disposed between the noise and non-slip and the futa concrete and one side is in close contact with the side wall of the futa concrete to prevent damage to the corner of the futa concrete when the vehicle passes through the damage prevention part more It can contain.

The damage preventing portion is composed of a steel plate, and the steel plate can be installed on the upper surface of the finger plate by any one of bonding, welding and bolting.

The noise and anti-skid portion, the damage preventing portion and the upper surface of the futa concrete may be located on the same plane.

It may be further installed on the side wall of the finger acid may further include a gauge plate to check the movement distance of the finger acid according to the expansion and contraction of the bridge.

According to an embodiment of the present invention, by providing a noise and non-slip portion on the upper surface of the finger plate, vibration noise generated during vehicle traffic and slipping of the wheel can be prevented.

In addition, according to an embodiment of the present invention, by providing a damage preventing portion on the upper surface of the finger plate, it is possible to prevent the edges of the rear concrete when the vehicle passes or the finger plate is damaged by vibration or the like.

In addition, in the embodiment of the present invention, by installing the gauge plate on the side wall of the finger acid, it is possible to check in real time the relative movement distance of the finger acid according to the expansion and contraction of the finger acid.

1 is a perspective view showing a telescopic joint device according to Korean Utility Model Registration No. 20-0335445.
Figure 2 is a front view showing the expansion and contraction device according to Figure 1;
Figure 3 is a cross-sectional view showing the installation state of the expansion joint device according to an embodiment of the present invention.
4A and 4B are perspective views illustrating a telescopic joint device according to an embodiment of the present invention.
5 is a cross-sectional view taken along line AA in FIG. 4A.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the contents described in the accompanying drawings illustrating preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. The same reference numerals in each drawing denote the same members.

3 is a cross-sectional view showing the installation state of the expansion and contraction device according to the present invention, FIGS. 4A and 4B are perspective views showing the expansion and contraction device according to the present invention, and FIG. 5 is an A-A sectional view of FIG. 4A.

3 to 5, the noise and non-slip telescopic joint device 100 according to the present invention is a base plate 110 installed on the upper portion of the futa concrete (C2), and the upper portion of the base plate 110 A pair of finger plates 140 and finger plates 140 that are opposed to each other and are fixed to the base plate 110 with bolts (B) and repeatedly formed by a plurality of finger mountains 143 and finger grooves 141 in series. It is provided between the base plate 110 and the auxiliary plate 120 bent downward, the rubber pads 130 for drainage at which both ends are coupled to the auxiliary plate 120, and provided on the upper surface of the finger plate 140 Noise and anti-slip unit 150 that prevents vibration noise and vehicle slip during vehicle passage, and a damage prevention unit that is provided on the upper surface of the finger plate 140 to prevent the edges of the futa concrete C2 from being damaged ( 160).

As shown in FIG. 3, the base plate 110 according to the present embodiment is installed on the upper portion of the futa concrete C2 poured on the upper portion of the upper slab C1, and the auxiliary plate 120 and a pair of finger plates Support (140).

In the state in which the base plate 110 is installed on the upper portion of the futa concrete C2, the auxiliary plate 120 and a pair of finger plates 140 are sequentially stacked on the upper surface of the base plate 110, and then bolted (B). The base plate 110 and the auxiliary plate 120 and the finger plate 140 are bolted.

The auxiliary plate 120 according to the present embodiment is disposed between the base plate 110 and the finger plate 140. The auxiliary plate 120 is formed in a “a” shape composed of a horizontal plate 121 provided on an upper surface of the base plate 110 and a vertical plate 123 bent downward from the horizontal plate 121.

In addition, both ends of the rubber pad 130 for drainage are respectively coupled to the ends of the vertical plates 123 disposed to face each other on adjacent piers.

The rubber pad 130 for draining is to drain the flowing water flowing from the upper slab C1, and a water resistant coating layer (not shown) may be formed on the surface to prevent damage due to moisture or the like.

On one surface of the finger plate 140 according to the present embodiment, a plurality of finger acids 143 and finger grooves 141 are continuously formed repeatedly. In addition, a pair of finger plates 140 are provided to face each other on the upper portion of the adjacent piers, specifically the upper portion of the Futa concrete C2.

One pair of finger plates 140 face each other on which the finger acid 143 and the finger groove 141 are repeatedly formed, and the opposite finger acid 143 is inserted into the opposite finger groove 141. In the state, they are arranged in a staggered cross shape. In addition, when the upper slab C1 expands or contracts, the finger acid 143 is moved relative to the sliding in the finger groove 141 provided to face. 4A and 4B, the finger groove 141 and the finger acid 142 may be formed in various forms.

On the other hand, as shown in Figure 1, the noise and non-slip telescopic joint device 100 according to the present invention is a finger acid 141 to easily check the relative movement distance of the finger acid 141 according to the expansion or contraction of the bridge. ) May further include a gauge plate 170 installed on the sidewall. A number of scales are displayed on the gauge plate 170 so as to check the moving distance of the finger acid 141.

The noise and anti-slip unit 150 according to this embodiment is provided on the upper surface of the finger plate 140 to prevent vibration noise and slip of the wheel generated when the vehicle passes. In addition, the noise and anti-slip unit 150 can prevent the finger plate 140 from being exposed to the outside for a long time, thereby preventing rust that may occur on the finger plate 140.

4A and 4B, specifically, the noise and non-slip portion 150 is formed of an elastic body 151 of a wear-resistant material installed on the upper surface of the finger plate 140, and irregularities formed on the upper surface of the elastic body 151 ( 155).

The elastic body 151 is formed in a plate shape in close contact with the upper surface of the finger plate 140. In addition, when the finger plate 140 vibrates when the vehicle passes, the elastic body 151 is elastically deformed together with the finger plate 140, so the elastic body 151 is made of a material having the same elastic force and restoring force as the finger plate 140. It is preferably manufactured.

As an embodiment of the elastic body 151, the elastic body 151 may be made of an elastic rubber such as epoxy applied to the upper surface of the finger plate 140 or vulcanized rubber adhered to the upper surface of the finger plate 140. The elastic rubber can be firmly bonded after applying a bonding agent to the upper surface of the finger plate, and in this embodiment, the bonding agent is any one that can firmly bond the elastic rubber to the upper surface of the finger plate 140 Any can be used.

In addition, various types of irregularities 155 are formed on the upper surface of the epoxy plate applied to the upper surface of the finger plate 140 or the elastic rubber adhered to the upper surface of the finger plate 140 to prevent slipping of the wheel due to rain water when passing a vehicle. Can be prevented.

In addition, even when the elastic body 151 is damaged by a vehicle or the like while the elastic body 151 is being used, it is possible to easily perform maintenance by applying or bonding epoxy or elastic rubber to the upper surface of the finger plate 140.

Meanwhile, as another embodiment of the elastic body 151, referring to FIG. 5, the elastic body 151 has a multilayer resin layer 152 and a surface of the multilayer resin layer 152 so as to have the same elastic force and restoring force as the finger plate 140. It includes a polyurea / polyphenyl sulfone composite resin coating layer 153 coated on.

Specifically, the multilayer resin layer 152 includes an ethylene vinyl acetate resin layer 152a, an ethylene vinyl acetate / polyurethane composite resin layer 152b, a polyurethane resin layer 152c, and an ethylene vinyl acetate / polyurethane composite water. The base layer 152b and the ethylene vinyl acetate resin layer 152a are sequentially stacked in the height direction. Here, the ethylene vinyl acetate / polyurethane composite resin layer 152b is foamed and molded by mixing ethylene vinyl acetate resin and polyurethane resin in a ratio of 1: 0.5 to 2.

When the elastic body 151 is composed of ethylene vinyl acetate, there is a problem that elongation and durability are lowered, and when it is composed of polyurethane, there is a problem that the restoring force is low and the restoration speed is slow. Accordingly, the present applicant is composed of a multi-layered resin layer 152 having a structure in which the elastic body 151 is laminated in multiple layers as described above, and the elastic body 151 composed of the multi-layered resin layer 152 is excellent in durability, and is more than 1000 times. Even in the repeated cycle experiment, it was confirmed that elongation and resilience were maintained at least 95% and had excellent adhesion.

In addition, the polyurea / polyphenylsulfone composite resin coating layer 153 according to this embodiment may be compounded with 95 to 99.5% by weight of polyurea and 0.5 to 5% by weight of polyphenylsulfone to be foam molded. In addition, the polyurea / polyphenylsulfone composite resin coating layer 153 may be coated on the surface of the multilayer resin layer 152 with a thickness of 0.01 to 3 mm.

The polyurea / polyphenylsulfone composite resin coating layer 153 improves the chemical resistance and waterproof properties of the elastic body 151. In particular, the polyurea / polyphenylsulfone composite resin coating layer 153 allows moisture such as rain water to flow smoothly from the surface. If the content of the polyphenylsulfone is less than the above range, it is difficult for the water to flow smoothly down, and if it exceeds the above range, the surface hardness may increase to decrease elasticity and resilience.

3, 4A and 4B, the breakage preventing part 160 according to the present embodiment is provided on the upper surface of the finger plate 140, and the noise and anti-slip parts 150 and the futa concrete (C2) It is disposed between to prevent the edges of the futa concrete (C2) from being broken.

As described above, in the case where the elastic body 151 is installed on the upper surface of the finger plate 140, when the vehicle passes through the upper surface of the finger plate 140, the elastic body 151 is elastically deformed, and accordingly, of the futa concrete C2. A step is generated in the height direction between the upper surface and the upper surface of the elastic body 151.

Therefore, when the vehicle repeatedly passes through the upper surface of the finger plate 140, a problem occurs in that the edge of the futa concrete C2 adjacent to the finger plate 140 is damaged. In addition, since the finger plate 140 vibrates when the vehicle passes through the upper surface of the finger plate 140, a problem occurs in that the edge of the futa concrete C2 in close contact with the finger plate 140 is damaged.

Accordingly, in this embodiment, the noise and non-slip portion 150 is installed between the futa concrete (C2) and the damage prevention portion (160), so that the corner of the futa concrete (C2) is damaged by the wheel or the finger plate (140) when the vehicle passes. ) To prevent damage due to vibration.

The damage prevention unit 160 is composed of a steel plate, and may be installed by any one of bonding bonding, welding bonding, and bolt bonding by an adhesive on the upper surface of the finger plate 140. Therefore, the side surfaces of the steel plate 160 and the elastic body 151 are installed side by side on the upper surface of the finger plate 140 in close contact with each other.

Meanwhile, the upper surface of the elastic body 151 installed adjacent to the upper surface of the finger plate 140, the upper surface of the steel plate 160, and the upper surface of the futa concrete C2 are located on the same plane. This is to prevent a step in the height direction between the upper surface of the elastic body 151 and the upper surface of the steel plate 160 and the upper surface of the rear concrete (C2).

As described above, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and modifications can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

100: telescopic joint 110: base plate
120: auxiliary plate 121: horizontal plate
123: vertical plate 130: rubber pad for drainage
140: finger plate 141: finger groove
143: finger acid 150: noise and anti-skid
151: elastic body 155: irregularities
152: multilayer resin layer 153: polyurea / polyphenylsulfone composite resin coating layer
160: damage prevention unit 170: gauge plate

Claims (9)

A pair of finger plates arranged opposite to each other on the upper part of the bridge, each finger acid and finger grooves formed on a surface opposite to each other, and the finger mountains facing each other are arranged in a staggered cross shape; And
It includes a wear-resistant elastic body installed on the upper surface of the finger plate and a concavo-convex formed on the upper surface of the elastic body, and includes a noise and anti-slip portion that prevents vibration noise and vehicle slippage when the vehicle passes,
The elastic body,
A multilayer resin layer in which an ethylene vinyl acetate resin layer, an ethylene vinyl acetate / polyurethane composite resin layer, a polyurethane resin layer, an ethylene vinyl acetate / polyurethane composite resin layer, and an ethylene vinyl acetate resin layer are sequentially stacked in the height direction. ; And
A stretch joint device for preventing noise and slip, including a polyurea / polyphenylsulfone composite resin coating layer coated on the surface of the multilayer resin layer.
According to claim 1,
In the ethylene vinyl acetate / polyurethane composite resin layer, ethylene vinyl acetate resin and polyurethane resin are blended in a ratio of 1: 0.5 to 2, and foamed,
The polyurea / polyphenylsulfone composite resin coating layer is compounded with 95 to 99.5% by weight of polyurea and 0.5 to 5% by weight of polyphenylsulfone, and is foam-molded.
The polyurea / polyphenylsulfone composite resin coating layer has a thickness of 0.01 to 3 mm, and is a stretchable joint device for preventing noise and non-slip coating on the surface of the multilayer resin layer.
According to claim 1,
It is installed on the upper surface of the finger plate and is disposed between the elastic body and the futa concrete, one side is in close contact with the futa concrete and the other side is provided with a steel plate that is in close contact with the elastic body, when the vehicle passes the of the futa concrete adjacent to the finger plate An expansion joint device for preventing noise and slipping, further comprising a damage prevention part that prevents the edge from being damaged by the wheel.
According to claim 3,
The steel plate is a flexible joint device for preventing noise and slip, which is installed on the upper surface of the finger plate by any one of bonding, welding, and bolting.
According to claim 3,
The noise and non-slip portion and the damage prevention portion and the upper surface of the futa concrete are noise and non-slip expansion joints located on the same plane.
According to claim 1,
The noise and non-slip expansion joint device further includes a gauge plate installed on a side wall of the finger acid to enable a movement of the finger acid according to expansion and contraction of a bridge. delete delete delete

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