KR19990027299U - Formulation Expansion Joint for Bridge - Google Patents

Abstract

The present invention relates to a joint device that elastically connects between the upper plate and the upper plate installed on the upper portion of the steel mold, more specifically, to improve the drainage and waterproofness between the upper plate and the upper plate to suppress the corrosion of the lower steel mold, concrete mold It relates to a formulation expansion joint device for bridges that can further improve the durability of the bridge.

The present invention, in the expansion joint device for connecting the plurality of upper plates 121 installed on the upper portion of the steel mold 120 of the bridge 100, a pair of bodies (10a), (10b) consisting of a ladder-shaped cross-sectional structure Each of the inclined surface 11 has a plurality of rows of fixing grooves 12 so that one end of each of the reinforcing bars 121a constituting the upper plate 121 is inserted and arranged uniformly, and the upper plate 121 is disposed at the lower end of the inclined surface 11. A plurality of bolt members 15 are formed on the upper ends of the pair of bodies 10a and 10b while the drain grooves 13 are formed to be long in the width direction to drain the fluid introduced into the contact surface gap with both sides. Steel joints 10 are respectively mounted so that the fingers 15a, 15b cross each other so as to cross each other; and both ends are fixed to the lower surfaces of the facing fingers 15a, 15b, respectively. The inside of the sagging rubber plate 21 has an auxiliary plate 22 made of a metal material free of plate deformation. Axial joints (20) provides an expansion joint for bridges comprising a.

Description

Formulation Expansion Joint for Bridge

The present invention relates to a joint device that elastically connects between the upper plate and the upper plate installed on the upper portion of the steel mold, more specifically, to improve the drainage and waterproofness between the upper plate and the upper plate to suppress the corrosion of the lower steel mold, concrete mold It relates to a formulation expansion joint device for bridges that can further improve the durability of the bridge.

In general, the bridge 100, as shown in Figure 1, a plurality of vertical piers 110 are installed at regular intervals, and the abdominal plate is mounted on both left and right sides, and there are several kinds of beams are mounted inside the bridge 110 and Consists of a steel mold (120) made of a child (I) type or box type installed horizontally through the shoe 130 is installed in the meeting point, the upper portion of the steel mold 120 according to the temperature It is connected to each other in the longitudinal direction by the expansion joint 140 so as to be able to flexibly adapt to the length deformation, and installs a top plate 121 made of reinforcement and concrete.

On the other hand, the conventional expansion joint device 140 connecting them to each other between the top plate 121 and another top plate 121, as shown in Figure 2, the bolt or other fastening member at the rear end of one side top plate 121 The first joint part 140a is integrally connected to each other, and the second joint part 140b is integrally connected to the front end of the other upper plate 121, and each of the finger parts crosses opposite to each other. 141a and 141b, while rain water falling from the gap between the finger portions 141a and 141b is provided at the lower portions of the first and second joint parts 140a and 140b facing each other. The rubber plate 142 was provided to prevent flow to the mold 120.

However, the conventional expansion joint device 140 includes sodium chloride for snow removal flowing through the gap between the finger parts 141a and 141b when the rubber plate 142 is damaged due to cracking or damage due to aging of the rubber plate 142. Since the fluid such as rain water and sewage is not blocked by the rubber plate 142 and flows into the lower steel mold 120, the steel mold 120, which is an important structure of the bridge 100, is introduced by the introduced rainwater and sewage. There was a problem of greatly deteriorating the durability of the bridge 100 is greatly corroded. In addition, when the upper plate 121 is damaged by an external force and a gap is generated in the contact surface where the first and second joint parts 140a, 140b and the upper plate 121 contact each other, rainwater and sewage introduced therethrough Since the water is flooded through the interior of the upper plate 121 made of reinforcing bars and concrete, there was a fatal problem of causing corrosion of the steel mold or whitening of the reinforced concrete mold, thereby greatly reducing its life and durability.

Therefore, the present invention has been devised to solve the problems described above, the object is to have an aluminum plate in the rubber plate, which is the expansion joint to improve the waterproofing, and has a formulation structure so that the drainage on the contact surface with the top plate is good By providing the steel joints, it is to provide a new expansion joint formulation for the bridge that can further improve the durability of the bridge by preventing corrosion and whitening of the lower steel mold and concrete mold.

1 is a front view showing a typical bridge,

Figure 2 is a longitudinal sectional view showing the expansion joint device for a bridge according to the prior art,

Figure 3 is an overall perspective view showing a formulation expansion joint device for bridges according to the present invention,

Figure 4 is a longitudinal sectional view showing a formulation expansion joint device for bridges according to the present invention.

<Description of Symbols for Major Parts of Drawings>

1 ...... Formation expansion joint 10 ..... Steel joint

10a, 10b .... body 11 ..... slope

12 ..... fixing groove 13 ..... drainage groove

14 ..... vertical plane 15 ..... bolt members

15a, 15b ..... Finger 20 ..... Expansion Joint

21 ..... Rubber plate 22 ..... Subplate

100 .... Bridge 110 .... Pier

120 ..... Steel Molds 121 .... Tops

130 .... Shu

In order to achieve the above object, the present invention, in the expansion joint device for connecting the plurality of upper plates installed on the upper portion of the steel mold of the bridge, the upper plate on each inclined surface of the pair of bodies made of a ladder-shaped cross-sectional structure One end of each reinforcing bar is provided with a plurality of rows of fixing grooves so as to be uniformly arranged, and at the lower end of the inclined surface, a drain groove for draining the fluid introduced into the contact surface gap with the upper plate to both sides is formed long in the width direction. And, the upper end of the pair of body is a plurality of bolt members, each of the steel joint portion mounted so as to cross each other opposite to each other; and both ends are fixed to the lower surface of the finger portion facing each other and the plate deformation inside the rubber plate A bridge having an auxiliary plate made of a free metal material; The formulation for expansion joints are according to maryeonham.

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

Figure 3 is an overall perspective view showing a formulation expansion joint device for a bridge according to the present invention, Figure 4 is a longitudinal cross-sectional view showing a formulation expansion joint device for a bridge according to the present invention.

Bridge formulation expansion joint according to the present invention (1) as shown in Figures 3 and 4, between the top plate 121 and another top plate 121 installed on the upper portion of the steel mold 120 to the length deformation It is installed on the connection portion so as to be able to flexibly cope without breaking the upper plate 121, the device 1 is made of a steel joint 10 and the expansion joint 20.

That is, the steel joints 10 provided in pairs between the upper plate 121 to be connected are integrally connected to the line and the rear end of the upper plate 121, respectively, each of which has a ladder-shaped body (symmetrical structure). 10a, 10b, the plurality of rows of fixing grooves 12 are formed on each of the inclined surfaces 11 of the pair of bodies 10a and 10b, together with the concrete 121b and the upper plate ( Since each end of the plurality of reinforcing bars (121a) installed in the longitudinal direction to securely configure the 121) can be inserted into the fixing groove 12, evenly and evenly arranged, and then welded, the upper plate 121 The connection between the body and the body (10a), (10b) can be more firmly fixed.

In addition, at the lower end of each of the inclined surfaces 11 of the bodies 10a and 10b, the fluid flowing into the contact surface gap generated when the upper plate 121 is broken is easily provided to both sides of the bodies 10a and 10b. In order to prevent the inundation to the inside of the top plate 121 of the concrete structure by drainage treatment, the drain groove 13 for draining the introduced rainwater, sewage to the outside is formed long in the width direction, the central portion of the drain groove 13 Is preferably formed higher than the forming height of both ends so that the drainage of the introduced rainwater, sewage is good.

In addition, by mounting a plurality of bolts 15, 15b, 15b interlocked with each other as a plurality of bolt members 15 on the upper end of the body (10a, 10b), the upper plate 121 of the climate change With the body (10a), (10b) connected to the stretched upper plate 121 when the length is deformed, the gap between the fingers portion (15a), (15b) is widened or narrowed to face each other.

In addition, the expansion joint 20 provided between the vertical surfaces 14 of the body 10a, 10b facing each other is the finger portion 15a, 15b of the plurality of bolt members 15, respectively. It is provided with a rubber plate 21 is fixed at both ends between the lower surface and the upper end of the body (10a, 10b), the rubber plate 21 is the body (10a) according to the length deformation of the upper plate 121, (10b) It is equipped with a predetermined length so that it can be spread to both sides sufficiently without breakage when the gap is opened, and is usually provided in a shape that sags downward between the vertical surfaces of the bodies 10a and 10b facing each other.

In addition, the fingers 15a, 15b to block the flow of fluid such as rainwater, sewage, etc. flowing through the gap between the facing fingers 15a, 15b to the lower steel mold 120. The rubber plate 21 is installed directly below the inner of the rubber plate 21 is provided with an auxiliary plate 22 made of a metal material, such as aluminum, which is resistant to corrosion and freely deformed in accordance with expansion and contraction of the bodies 10a and 10b. Both ends of the auxiliary plate 22 should be provided with a length shorter than the length of the rubber plate 21 so as not to be affected by the fixing force by the bolt member 15 for fixing both ends of the rubber plate 21.

Referring to the operation and effects of the present invention configured as described above are as follows.

That is, the upper plate 121 which is the upper structure in accordance with the length deformation according to the temperature change between the top plate 121 and another top plate 121 is installed on the piers 110, the expansion and contraction apparatus 1 of the present invention. When installing to keep the connection between the elastic, first, the upper plate 121 is each body that is mounted on the line, the rear end of each of the upper end of the reinforcing bar (121a) constituting it at the top plate 121 Since it can be inserted into a plurality of rows of fixing grooves 12 formed on the inclined surfaces 11 of 10a and 10b, respectively, the rebar 121a can be uniformly and efficiently performed. In addition, by maintaining the connection force between the body (10a), (10b) and the top plate 121 can be improved durability of the constructed bridge (100).

When the upper plate 121 is damaged, a gap is generated in the contact surface between the bodies 10a and 10b and the upper plate 121, so that rainwater and sewage may flow through the body 10a and 10b. Since the drain groove 13 is formed at the bottom of the inclined surface 11 in the width direction, the concrete by rainwater immersion by completely draining rainwater and sewage introduced through the drainage groove 13 inclined to both sides to the outside effectively. This can prevent corrosion and breakage of the 121b.

In addition, rainwater, sewage, etc. flowing into the gap between the finger portions 15a and 15b respectively installed at the upper ends of the bodies 10a and 10b are lowered by the rubber plate 21 installed under the lower steel mold ( 120 is prevented from flowing to the side, even if a crack occurs due to aging of the rubber plate 21, since the auxiliary plate 22 made of a metal material such as aluminum is embedded therein, it is related to the crack of the rubber plate 21. It is possible to increase the waterproofness by discharging rainwater, sewage, etc. that are introduced to the outside. When the rubber plate 21 is severely damaged and its function is completely lost, the bolt member 15 for fixing the fingers 15a and 15b is dismantled and then simply replaced with a new rubber plate 21. Can be.

As described above, according to the present invention, the body 10a, 10b of the ladder-shaped cross section in which the fixing groove 12 and the drainage groove 13 are formed on the inclined surface 11, respectively, and the auxiliary plate 22 capable of plate deformation. By having a built-in rubber plate 21, it is possible to firmly connect the upper plate 121 and the body (10a), (10b) of the iron large concrete structure, rainwater introduced by the damage of the top plate 121, Since the drainage performance of the sewage is excellent, and rainwater and sewage introduced through the fingers 15a and 15b can be blocked regardless of the rupture of the rubber plate 21, corrosion of the lower steel mold 120 as in the prior art And by preventing the whitening of the concrete mold effect is obtained that can significantly improve the durability of the bridge (100).

Claims (1)

In the expansion joint device for connecting a plurality of top plates 121 installed on the upper portion of the steel mold 120 of the bridge 100, each inclined surface of a pair of bodies (10a, 10b) of the ladder-shaped cross-sectional structure One end of the reinforcing bar 121a constituting the upper plate 121 is provided with a plurality of rows of fixing grooves 12 so as to be uniformly disposed, and the lower end of the inclined surface 11 is disposed with the upper plate 121. While forming a drain groove 13 for draining the fluid flowing into the contact surface gap to both sides outside in the width direction, the finger portion as a plurality of bolt members (15) on the upper end of the pair of bodies (10a, 10b) Steel joints 10 mounted so as to intersect 15a and 15b opposite to each other; and both ends are fixed to lower surfaces of the facing fingers 15a and 15b, respectively, so that the rubber plate sags downward. 21, the expansion joint portion having an auxiliary plate 22 made of a metal material free of plate deformation ( 20) Formulation expansion joint device for a bridge, characterized in that it comprises a.