KR102343405B1 - Expansion joint device with rubber seal that can be assembled with one touch - Google Patents

Abstract

The present invention is to provide a one-touch assemblable expansion joint apparatus with a rubber seal, which is easily installed even on a relatively small-scale bridge, which minimizes a load on the bridge by making joint plates lightweight, and which enables the rubber seal to be fit-attached between the joint plates and detached therefrom in a vertical direction. The present invention comprises: one pair of joint plates installed to face each other at ends of bridge decks spaced apart from each other; inclined grooves formed on surfaces facing each other in the longitudinal direction of the joint plates and formed to have a downward inclination angle such that a distance therebetween expands downward; a rubber seal watertightly closing the gap between the pair of joint plates and provided with one pair of insertion parts at both ends to be fit-coupled to the inclined grooves; insertion grooves formed on one sides of the joint plates in a longitudinal direction at the height corresponding to fixation anchors buried on the bridge decks; and socket plates coupled to the insertion grooves and made of a hard material different from a material of the joint plate to increase strength and configured to be weld-coupled or bolt-coupled to the fixation anchors. The one-touch assemblable expansion joint apparatus with the rubber seal, if used, may improve a structure such that the rubber seal, to be joint-installed between the bridge decks, and may be fit-coupled at an inclination angle along the inclined grooves expanded by a downward inclination angle, thereby enabling a rubber seal replacement work to be easily performed with a simple hand tool in a manner of not breaking the bridge decks.

Description

Expansion joint device with rubber seal that can be assembled with one touch}

The present invention relates to an expansion joint device having a rubber seal that can be assembled with one touch. More specifically, the present invention relates to an expansion joint device having a rubber seal that can be assembled with one touch in which a joint plate is made of different materials and the rubber seal can be easily attached and detached. .

In general, in order to cope with the contraction or expansion of the bridge according to the temperature change, a plurality of bridge decks are installed consecutively in the longitudinal direction of the bridge, and an expansion joint device is installed between the consecutively installed bridge top plates.

In bridges with a relatively small amount of expansion and contraction, a monocell type expansion joint device or a single rail type expansion joint device is commonly applied. has been disclosed. This is an expansion joint device for easy spacing fixing and spacing adjustment. The expansion joint device is installed at the upper plate joint of the bridge, and the first plate part and the second plate part are spaced apart and face each other, and the first plate part and the second plate part Disclosed is a technique including at least one or more adjustment members for adjusting the spacing of the parts.

As another prior art, according to "Expansion joint device and its construction method" of Patent Publication No. 10-1758081, it is installed between the reinforced concrete slab and the slab to accommodate the expansion and contraction of the slab, and to prevent leakage to the lower part of the space. An expansion joint device comprising: a pair of frames installed on each of the slabs; a drainage material installed between the pair of frames; a plurality of anchors coupled to the support bars on the frame and the slab to support the frame; And it is coupled to the support reinforcing bars on the frame and the slab, and allows the horizontal installation distance between the two frames to be stably and conveniently adjusted before the plurality of anchors are coupled to the support reinforcing bars, thereby providing a narrow space between the pair of frames. Disclosed is a technology related to an expansion joint device and a construction method including a plurality of spacing devices that allow the drainage material to be easily installed in a space.

However, the above expansion joint devices are technologies that a separate space adjusting member (means) is absolutely necessary to install a drainage material (rubber seal) in a narrow space between a pair of plates or frames, and thus construction time and cost increase. there was a problem with

Moreover, when looking at the maintenance frequency of expansion joints, it is most often necessary to replace the drain material (rubber seal) due to a problem. It is very difficult to do, and especially in the case of a narrow space such as in summer, it is impossible to replace a simple drainage material, so it is inevitably necessary to block the passage of the bridge, break the concrete, repair it, and then pour it again. During the period, the evils of causing serious traffic jams followed.

KR 10-1697232 B1 (2017.01.17.) KR 10-1758081 B1 (2017.07.14.)

In the present invention, a new technology was created to solve the problems of the prior art, and it is easy to install even on a relatively small-scale bridge, and the joint plate is made to be lightweight to minimize the load on the bridge, and also between the joint plates. It is an object of the present invention to provide an expansion joint device having a rubber seal capable of assembling one-touch rubber seals in which the rubber seals can be fitted and detached up and down.

In order to achieve this object, the present invention provides a pair of joint plates installed to face each other at the end of the bridge top plate spaced apart from each other, and formed on the faces facing each other in the longitudinal direction of the joint plates, and the spacing between each other as it goes down A rubber seal formed to have a downward inclination angle so as to expand, a rubber seal having a pair of inserts at both ends to be watertight closed between a pair of joint plates, and fitted into the inclined groove, and a fixed anchor embedded in the bridge top plate An insertion groove formed in the longitudinal direction on one side of the joint plate at a height corresponding to Anchor through hole and socket through hole respectively formed in the joint plate and socket plate so that the fixed anchor penetrates and the end protrudes inward, and the fixed anchor protruding from the lower portion of the inclined groove of the joint plate faces inward to secure a space for the socket plate to be coupled It may be characterized in that it includes a lower inclined portion formed at the lower portion of the joint plate in order to closely transport the joint plate in the direction of the bridge upper plate by the inclined movement and the internal entrance space portion configured to be.

In addition, the gap between the joint plates is formed to be narrower than the upper area with the entrance of the inclined groove as a boundary by the inclined jaw formed at the lower part of the entrance of the inclined groove, and the insertion part inserted between the joint plates is guided to the inclined jaw. It may be characterized in that it is provided to be inclined to move inwardly of the inclined groove.

In addition, when two or more of the joint plates are continuously installed, the packing configured to be interposed between the adjacent joint plates, and the side of the joint plate in contact with the packing is a vertical inclined portion formed to be inclined to the inside of the joint plate in the direction of the bridge top plate And, it may be characterized in that the packing inclined portion formed on the side of the packing to correspond to the vertical inclined portion is further included, so that the packing interposed between the joint plates is pressed in a sectoral shape so as not to be separated.

In addition, when two or more of the joint plates are installed consecutively, the connecting fixture configured to be interposed between the side of the joint plate and the bridge top plate so as to couple the ends of the adjacent joint plates, respectively, and the joint to reinforce the strength of the connecting fixture Expansion joint device having a rubber seal capable of one-touch assembly, characterized in that it further includes a connecting bracket comprising a connecting support piece formed on the lower portion of the connecting fixture to be interposed between the lower surface of the plate and the upper plate of the bridge.

In addition, a mountain-shaped bent portion formed in the longitudinal direction of the socket plate, guide inclined surfaces respectively formed on the upper and lower surfaces of the socket plate, and insertion inclined surfaces respectively formed on the inner upper and lower surfaces of the insertion groove to correspond to the guide inclined surfaces are further included. can be characterized.

According to the above configuration and action, in the present invention, the joint plate is made of a lightweight metal such as aluminum, and a socket plate made of a high strength material is further provided to reinforce the durability of the joint plate, thereby reducing the load on the bridge by minimizing the load on the bridge because it is strong and light. By reducing the stress received, it is possible to prolong the life of both the bridge and expansion joints.

Even when the gap between the bridge top plates is narrow, the rubber seal can be easily detached from the plate even on the bridge top plate using a simple hand tool, so installation and maintenance are very convenient.

Therefore, as the period of construction is shortened, it is not necessary to control the vehicle for a long time due to the replacement of the rubber seal, so it is possible to shorten the maintenance work period as well as reduce the construction cost, and there is an advantage in that the bridge maintenance cost is reduced in the long term.

The present invention is an invention with many expected effects, such as being able to easily replace only the rubber seal independently without crushing the installation part of the expansion joint device.

1 is a three-dimensional configuration diagram showing an expansion joint device having a rubber seal capable of one-touch assembly according to an embodiment of the present invention.
2 is a front cross-sectional view showing an expansion joint device having a rubber seal capable of one-touch assembly according to an embodiment of the present invention is installed.
3 is a front cross-sectional view showing an expansion joint device having a rubber seal capable of one-touch assembly to which a connection bracket is applied according to an embodiment of the present invention is installed;
4 is a plan view showing an expansion joint device having a rubber seal capable of one-touch assembly to which a connection bracket is applied according to an embodiment of the present invention is installed;
5 is a front cross-sectional view showing an expansion joint device having a rubber seal capable of one-touch assembly according to another embodiment of the present invention is installed.

Hereinafter, the present invention will be described in more detail according to specific embodiments of the accompanying drawings. Technical terms used in this specification are terms selected in consideration of functions in embodiments, and the meaning of the terms may vary according to specific embodiments of the present invention. And throughout the specification, when a part is "connected" with another part, this includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another member interposed therebetween. do.

The present invention relates to an expansion joint device having a rubber seal that can be assembled with one touch, so that the rubber seal 30, which is jointly installed between the bridge top plates 100, rides the inclined groove 11 that extends at a downward inclination angle and is inclinedly fitted. The structure has been improved so that the rubber seal 30 replacement can be performed using a simple hand tool in a non-fragmenting method of the bridge top plate 100, and the joint plate 10 is lightweight so that the strength can be reinforced with the socket plate 20 ) is characterized in that it is provided integrally.

1 to 2 are diagrams showing a preferred embodiment of an expansion joint device having a rubber seal capable of one-touch assembly provided by the present invention. The present invention is a pair of joints installed in a spaced space (variable space) of a bridge. The plate 10, the inclined groove 11 formed to face each other on the joint plate 10, and the rubber seal 30 coupled to the inclined groove 11 and the insertion groove 15 of the joint plate 10 are coupled to each other. It consists of a main configuration including a socket plate 20 to be.

The joint plate 10 according to the present invention is provided in a pair to face each other at the end of the bridge top plate 100 spaced apart from each other. The joint plate 10 is installed so as to be embedded in the bridge top plate 100, and a specific embodiment thereof will be described later with reference to the drawings.

1 to 2 , the joint plate 10 is embedded in the end of the bridge top plate 100 and is provided to be fixed by the fixing anchor 101 .

The fixed anchor 101 may be formed of a bolt, and the joint plate 10 is fixed in position.

Thereafter, concrete is poured so that the fixed anchors 101 and reinforcing bars are buried to form the bridge top plate 100 .

The joint plate 10 is made of lightweight metal, and in this embodiment, it is exemplified by extruding aluminum.

When manufactured by extruding from aluminum, it has the advantages of light weight, strong corrosion resistance, and low processing cost.

The joint plate 10 extruded from aluminum may have a slightly different length depending on the scale of the installed bridge, but it is preferable to produce a unit length of 6 to 9 m.

When the joint plate 10 is aluminum, the strength is rather weak, and due to the difference in physical properties, such as thermal conductivity, from the fixed anchor 101 made of iron, with modern technology, the joint plate 10 made of aluminum and the fixed anchor 101 made of iron. It is difficult to perform joint work such as welding.

Therefore, in order to reinforce the strength of the joint plate 10 and increase the fixability with the fixed anchor 101, a socket plate 20 made of a steel material with high hardness as a material different from the joint plate 10 is further included. composed to be

The socket plate 20 may be coupled to be in direct contact with the joint plate 10, but in this embodiment, in order to increase the fixability of the socket plate 20 to the joint plate 10, the joint as shown in the figure An insertion groove 15 is formed on one side of the plate 10 in the longitudinal direction, and a socket plate 20 formed with a length corresponding to the length of the joint plate 10 is inserted into the insertion groove 15 of the joint plate 10 . Stable construction is possible without shaking.

The length of the socket plate 20 may be made identically to the length of the joint plate 10 , or several short sockets in one joint plate 10 in consideration of the workability of the material of the socket plate 20 . The plate 20 may be coupled.

The height at which the insertion groove 15 is formed corresponds to the height at which the fixing anchor 101 is coupled to the joint plate 10, and is fixed with the anchor through hole 14 on the side of the joint plate 10 from the bridge top plate 100 side. The anchor 101 is penetrated and protrudes inward, and the anchor bolt is configured to be coupled to or penetrate the socket through hole 21 of the socket plate 20 .

The method in which the fixing anchor 101 is coupled to the socket plate 20 may be configured to be spirally coupled to the socket through-hole 21, but this may be somewhat cumbersome to assemble, so a separate nut is attached to the end of the fixing anchor 101 It may be coupled by fastening, or it may be fixed by welding the fixing anchor 101 and the socket plate 20 made of similar materials.

When the joint plate 10 and the socket plate 20 are integrally combined with the fixed anchor 101 as described above, a lighter expansion joint device can be constructed and sufficient strength can be secured.

The inclined groove 11 according to the present invention is formed on the surfaces facing each other in the longitudinal direction of the joint plate 10 installed with the separation space therebetween, and the downward inclination angle so that the distance between them increases (expands) in the downward direction. is formed to have

The rubber seal 30 according to the present invention is formed of an elastic member containing rubber, a bent portion 32 concave downward in the middle is formed, and both ends of the bent portion 32 are fitted into the inclined groove 11. A pair of insertion parts 31 are provided so as to be possible.

When the insertion part 31 is inserted into the inclined grooves 11 on both sides of the joint plate 10, the gap between the joint plates 10 is closed, and foreign substances including rainwater flowing down into the separation space of the bridge are drained.

Although not shown in the drawings, the insertion part 31 may be formed in an inclined shape that decreases in width toward the end, or may be formed as a hollow hollow in the center.

Therefore, when the rubber seal 30 is coupled to the inclined groove 11 by the hollow part, the insertion part 31 is contracted to facilitate the installation of the rubber seal 30, and the insertion part 31 is inserted into the inclined groove 11 ), the rubber seal 30 does not come off easily due to external force due to the binding structure, and a strong bonding state can be maintained.

As such, when the rubber seal 30 is compressed and elastically deformed and inserted between the joint plates 10 so that the distance between the pair of insertion parts 31 is reduced, the insertion part 31 rides the inclined groove 11 and expands at a downward inclination angle. When the rubber seal 30 is pulled upward during repair work, the elastic material insert 31 is easily separated on the inclined groove 11, so the bridge top plate 100 The rubber seal 30 can be simply replaced in a non-fracture method without crushing it.

The gap between the joint plates 10 is narrower compared to the upper area L1 compared to the lower area L2 with the entrance of the inclined groove 11 as a boundary by the inclined jaw 12 formed at the lower part of the entrance of the inclined groove 11 . is formed

When configured as described above, when the operator arranges the rubber seal 30 between the separation spaces on the bridge and combines it with the inclined groove 11, the insertion part 31 inserted between the joint plate 10 is the inclined jaw ( 12) is guided to the inclined groove 11 and is provided to move inclinedly, thereby preventing the rubber seal 30 from accidentally falling out between the spaced spaces and enabling even unskilled workers to install the rubber seal 30. In particular, there is an advantage in that the rubber seal 30 replacement operation can be easily performed using a simple hand tool including a hammer and a mill piece for pressing the rubber seal 30 from the top.

In addition, the joint plate 10 has an inner mouth space 13 that is inserted as much as the inner mouth region L3, and the socket plate 20 coupled to the joint plate 10 and the socket plate 20 are fixed to combine. The end of the anchor 101 is configured so that it does not protrude further than the lower region L2, so that even if the distance between the joint plates 10 is somewhat narrowed according to the deformation of the bridge, the joint plates 10 between each other or the fixed anchor 101 It is possible to prevent damage or breakage by bumping the ends to each other.

In addition, the lower inclined portion 17 is formed in the lower part of the joint plate 10 so that the joint plate 10 receives a force to adhere to the bridge top plate 101 by gravity, thereby reducing the load applied to the fixed anchor 101. By reducing it, it can be expected to prevent deformation or reduction of life of the fixed anchor 101.

In addition, as shown in FIGS. 3 to 4 , when the expansion joint device is installed on a bridge longer than the unit length of the joint plate 10, several joint plates 10 may be coupled in series in the longitudinal direction to be installed.

At this time, in order to prevent sagging of the joint plate 10, the ends of the joint plates 10 facing each other are coupled with a connection bracket 40, and between the joint plates 10, in order to prevent water leakage in the gap. The elongated packing 50 may be coupled to be inserted.

When the connection bracket 40 is described in more detail, the connection fixing piece 41 formed perpendicular to the side surface of the end of the adjacent joint plate 10 is a fastener 43 passing through the fastener coupling hole formed in the connection fixing piece 41 . Alternatively, it is coupled to the joint plate 10 by a penetrating fixed anchor 101 or the like.

The connection fixing piece 41 is installed to be inserted between the joint plate 10 and the bridge top plate 100 to prevent exposure to the outside and not interfere with the rubber seal 30 .

A fastener coupling hole 44 is further provided in the connection fixing piece 41 to be coupled with the fastener 43 , and a corresponding female screw for coupling may be further formed in each joint plate 10 .

It is possible to fix the ends of the pair of joint plates 10 to each other only with the connection fixing piece 41, but between the lower surface of the joint plate 10 and the bridge top plate 100 in order to reinforce the strength of the connection bracket 40 A connection support piece 42 formed under the connection fixing piece 41 to be interposed may be further provided.

Therefore, the connection bracket 40 is formed in an approximately L-shaped structure to support the joint plate 10 from the lower part and at the same time support the side surface of the joint plate 10 .

In addition, when the metal and the metal come into contact between the pair of joint plates 10 connected in series with each other, a gap may be formed and leakage due to rainwater may occur. In order to prevent this, adjacent joint plates It is configured such that the packing 50 is interposed between (10).

The packing 50 is made of a material of rubber or synthetic resin and is formed to be elongated vertically, and on the side of the joint plate 10 in contact with the packing 50, it is inclined to the inside of the joint plate 10 in the direction of the bridge top plate 100. It may further include a vertical inclined portion 16 is formed.

Therefore, as shown in Fig. 4, the packing 50, which is pressed to be watertight between the pair of joint plates 10, is pressed in the direction of the bridge top plate 100 in a sectoral shape, and the convex rear surface in the sectoral shape is connected to the bracket 40 ), so that it is watertight without any gaps and does not separate from the joint plate 10 at the same time.

A packing inclined portion 51 corresponding to the inclination angle of the vertical inclined portion 16 may be further configured on the side surface of the packing 50 so that the pressurization is made more easily.

In addition, the packing 50 may further include a rubber seal groove 52 so as not to interfere with the installation of the rubber seal 30 when the rubber seal 30 is coupled in the entire longitudinal direction of the joint plate 10 .

In addition, as shown in FIG. 5 , the bent portion 32 may be further formed in an angular shape in the longitudinal direction of the socket plate 20 .

When the mountain-shaped bent portion 22 is formed, strength corresponding to the bending when the socket plate 20 is subjected to a force in a direction perpendicular to the longitudinal direction can be increased.

Therefore, since the socket plate 20 having the angular bent portion 22 formed thereon can be manufactured and applied thinner, the cost and weight can be further reduced.

The mountain-shaped bent portion 22 may generally have a concave-convex shape, but may perform some of its functions even if only the convex portion is formed.

In addition, the guide inclined surface 23 is formed on the upper surface and the lower surface of the socket plate 20, respectively, and the insertion inclined surface 15a is formed on the inner upper surface and the lower surface of the insertion groove 15 to correspond to the guide inclined surface 23, respectively. can

When the guide inclined surface 23 and the insertion inclined surface 15a are configured, the socket plate 20 is not coupled horizontally from the side of the joint plate 10, but is coupled with a slide in the diagonal direction of the oblique line. In this case, it becomes possible to configure the socket plate 20 to be naturally in close contact with the joint plate 10 by gravity.

When configured as described above, the overall load of the expansion joint device can also be greatly reduced, so the load is small, and even when the gap between the bridge top plates 100 is narrow, a simple hand tool is used for the bridge top plate 100 as well as the joint plate (10). Since the rubber seal 30 can be easily detached, installation and maintenance are very convenient.

As described above, in the detailed description of the present invention, the most preferred embodiment of the present invention has been described, but various modifications are possible within the scope not departing from the technical scope of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but the protection scope should be recognized from the techniques of the claims to be described later and equivalent technical means from these techniques.

100: bridge top plate
101: fixed anchor
102: fixing nut
10: joint plate
11: inclined groove
12: sloping jaw
13: interior space part
14: anchor through hole
15: insertion groove 15a: insertion slope
16: vertical slope
17: lower slope
20: socket plate
21: socket through hole
22: umbel bent part
23: guide slope
30: rubber seal
31: insertion part
32: bend
40: connection bracket
41: connection fixed piece
42: connection support piece
43: fastener
44: fastener joint hole
50: packing
51: packing inclined part
52: rubber seal groove
L1: upper area
L2: lower area
L3: Inlet area

Claims (5)

A pair of joint plates 10 coupled to the fixed anchor 101 at the end of the bridge top plate 100 spaced apart from each other and installed to face each other;
Inclined grooves 11 formed on the surfaces facing each other in the longitudinal direction of the joint plate 10 and formed to have a downward inclination angle so that the distance between them increases in the downward direction;
a rubber seal 30 having a pair of insertion portions 31 provided at both ends so as to be watertightly closed between the pair of joint plates 10 and fitted into the inclined groove 11;
Insertion groove (15) formed in the longitudinal direction on one side of the joint plate (10);
a socket plate 20 inserted into the insertion groove 15 and configured to be fixed to the fixing anchor 101;
Guide inclined surface 23 formed on the lower surface of the socket plate 20;
an insertion inclined surface (15a) formed on the inner lower surface of the insertion groove (15) to correspond to the guide inclined surface (23);
A lightweight expansion joint device that is easy to assemble with a rubber seal.
The method of claim 1,
The gap between the joint plates 10 is narrower compared to the upper area L1 compared to the lower area L2 with the entrance of the inclined groove 11 as a boundary by the inclined jaw 12 formed at the lower part of the entrance of the inclined groove 11 . Expansion joint having a rubber seal capable of one-touch assembly, characterized in that the insertion part 31 that is formed and inserted between the joint plates 10 is guided to the inclined jaw 12 to move inclinedly into the inclined groove 11. Device.
The method of claim 1,
A connection fixing piece 41 configured to be fixed to the joint plate 10 and interposed between the joint plate 10 and the bridge top plate 100 so as to couple the ends of the joint plates 10 adjacent to each other in the longitudinal direction;
a connection support piece 42 configured at the lower end of the connection fixing piece 41 to be interposed between the lower surface of the joint plate 10 and the bridge top plate 100;
It is interposed so as to be pressed between the adjacent joint plates 10, the packing 50 is configured to prevent leakage;
Expansion joint device having a rubber seal that can be assembled with one touch, characterized in that it further includes.
4. The method of claim 3,
The vertical inclined portion 16 formed on the side of the joint plate 10 is further narrowed in the direction of the joint plate 10 facing each other so that the packing 50 is interposed between the adjacent joint plates 10. Expansion joint device having a rubber seal that can be assembled with one touch, characterized in that it is included.
The method of claim 1,
um-shaped bent portion 22 formed in the longitudinal direction of the socket plate 20;
A lightweight expansion joint device that is easy to assemble with a rubber seal, characterized in that it further includes a.

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