KR200361772Y1 - Sealing joint for slabs of bridge - Google Patents

Abstract

Ordered joints for bridge decks are provided. The order joint includes a tubular expansion and contraction portion having a pair of corrugated plates substantially parallel to each other with a stretchable material; A pair of plate-shaped fixing parts formed integrally with the same material as the stretchable part at both ends of the stretchable part and fixed to the pair of bridge top plates, respectively, and having protrusions formed along the longitudinal direction at both edges thereof; And a reinforcement plate embedded along the plate surface in the fixing portion. This makes it relatively inexpensive and inexpensive, so that the clearance gap between bridge decks can be excellently durable, and its operation is easy.

Description

Sealing joint for slabs of bridges

The present invention relates to an order joint, and more particularly, to an order joint for a bridge deck, which enables to inexpensively and easily block a gap formed in a boundary wall region bent from a road surface in a bridge deck.

Bridges or overpasses are composed of a plurality of continuous tops with both ends mounted on a plurality of bridges, and these tops have a gap in the joint area to compensate for the amount of stretch due to temperature changes. In the clearance gap, expansion joints and the like, which are not shown, are generally interposed to facilitate smooth expansion of the bridge deck. The expansion joint device connects the bridge top plate and the top plate to form a road surface, whereby smooth communication between the vehicle and the person is possible.

On the other hand, the clearance gap is formed between the bridge top plate and the top plate in the area bent from the road surface of the bridge or overpass, that is, the boundary wall separating the driveway and the sidewalk. These forms a plurality of openings along the longitudinal direction of the boundary wall, and there is a problem of deteriorating the quality of the bridge or overpass by being exposed to the outside visually. In addition, these openings can also cause intrusion of dirt or other substances such as rainwater and rubbish, which can cause deformation and breakage of the entire structure in severe cases.

Therefore, conventionally, an opening formed in the boundary wall region of the bridge deck is blocked using a foamed styrene resin, silicon, or the like. By the way, the foamed styrene resin, silicone, etc., there is a problem that easily deformed or worn due to the characteristics of the material. Thus, for example, an iron plate is used to block the opening, which is relatively rigid. In this case, since only one side of the opening edge is to be fastened to correspond to the expansion and contraction of the bridge deck, the work is cumbersome. And, unstable fastening can be broken relatively easily, on the other hand, the iron plate may corrode over time.

In view of these problems, in recent years, so-called barrier order joints in which stainless steel plates are bonded to both sides with a member made of a stretchable material are used. In this case, however, it is difficult to cut or bend according to the height of the boundary wall or the size of the opening due to the characteristics of the product having a relatively thick material, which is inconvenient to install. In addition, since already cut products are difficult to use again, there is a problem that the installation cost is high.

Therefore, the object of the present invention, in consideration of such a problem in the prior art, by making a relatively lightweight and inexpensive to cut off the gap between the bridge tops durable and excellent, easy to work bridge joints for bridge tops To provide.

1 is a partial cutaway perspective view schematically showing a bridge top plate installed in the order joint according to the present invention,

2 is an enlarged perspective view of an order joint according to the present invention;

3 is a cross-sectional view of FIG.

Figure 4 is a longitudinal sectional view showing another installation state of the order joint according to the present invention,

Figure 5 is a partial perspective view showing a state in which the order joint according to the present invention is installed on the bridge top plate is installed expansion expansion device.

* Explanation of symbols for the main parts of the drawings

1: bridge deck 2: clearance gap

3: sidewalk 5: driveway

7: boundary wall 11: order joint

13: stretching part 15: fixing part

16: flange 17: bolt fastening

18: bolt 19: protrusion

20: reinforcement plate 21: rebar

31: expansion joint 33: horizontal member

35 vertical member 37 anchor

The object is, according to the present invention, in the order joint for blocking the clearance gap formed in the boundary wall region bent from the road surface between a pair of continuous bridge deck, as long as they are substantially parallel to each other with a flexible material. A cylindrical stretchable portion having a pair of corrugated plates; A pair of plate-shaped fixing parts formed integrally with the same material as the stretchable part at both ends of the stretchable part and fixed to the pair of bridge top plates, each having a protruding portion along a longitudinal direction at both edges thereof; And a reinforcement plate embedded in the fixing part along the plate surface.

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

1 is a partial cutaway perspective view schematically showing a bridge top plate is provided with a joint to block the separation gap of the boundary wall according to the present invention. Between the bridges (not shown) disposed at regular intervals and the bridges, a bridge deck 1 as shown in the figure is provided. Bridge top plate 1 is completed by arranging a base member (not shown) at predetermined intervals, reinforcing bars (not shown) on each side, and pouring and curing concrete. Between the bridge top plate 1 and the top plate 1, expansion joint devices (31 in FIG. 5) as described later can be provided to achieve smooth expansion and contraction.

As can be seen from the figure, the bridge deck 1 has a relatively lower roadway 5 and an upper sidewalk 3, and a boundary wall 7 partitioning them is formed. The bridge decks 1 maintain a predetermined distance so as not to contact each other by their own expansion and contraction. As a result, a predetermined spacing 2 is formed between the section and the section of the bridge deck 1. In the drawings, the clearance gap 2 is more or less excessively illustrated in practice in order to facilitate easy description and clearer understanding.

The clearance gap 2 of the bridge top plate 1 forms openings 8 and 9 in the upper and side directions except the lower side. In the side opening 9, that is, in the opening formed in the boundary wall 7, the order joint 11 for bridge deck according to the present invention is provided.

2 is a perspective view of the order joint according to the present invention, Figure 3 is a cross-sectional view of FIG. As can be seen from these figures, the order joint 11 has an elastic part 13 and a fixing part 15 and has a substantially rectangular plate shape. The elastic part 13 provided in the center is made thicker than the both sides fixing part 15 and is formed in a pleated shape. This expansion and contraction portion 13 has a hollow hollow body shape, and thus has a pair of corrugated plates that are substantially parallel to each other at intervals. Corrugated boards on both sides can be stretched smoothly along the wave direction. As a result, the bridge joint plate 11 can be effectively stretched in conjunction with the expansion and contraction of the bridge deck 1 in a state provided in the boundary wall 7 as will be described later.

Both sides of the fixing portion 15 is formed in a plate shape, it can be manufactured to have a thickness of about 3mm-10mm. In this embodiment, it is manufactured to have a thickness of about 4 mm so that it can be easily bent and cut as described below. A plurality of bolted fastening holes 17 are formed in the plate surface of the plate-shaped fixing part 15, respectively. Protruding portions 19 are provided on both side edges of the fixing portion 15 along their longitudinal direction to face each other. When the fixing part 15 is fastened corresponding to the edge of the boundary wall 7, they maintain the airtightness of the boundary wall 7 and the fixing part 17 to block foreign matter penetration from the outside.

Such order joint 11 is preferably made of an elastomer such as natural rubber, synthetic rubber or synthetic plastic that can be mass produced at a relatively low price. They have low stress at room temperature, and can provide excellent elastic force in conjunction with the expansion and contraction of the bridge deck 1.

Reinforcing plates 20 are embedded in both fixing portions 15 of the order joint 11, respectively. The reinforcing plate 20 is preferably a thin iron plate that is easy to bend and bend. In this embodiment, an iron plate having a thickness of 0.5 mm is embedded in consideration of the thickness of the fixing portion of about 4 mm.

Meanwhile, the stretchable part 13 and the fixed part 15 may be integrally formed by injection molding. The reinforcement plate 20 can be accommodated in the positions of both fixing parts 15 in the mold not shown before the injection molding of the stretchable part 13 and the fixing part 15, whereby the reinforcing plate 20 is relatively simple. This embedded order joint 11 can be obtained.

In order to provide the order joint 11 of such a structure, first, the order joint 11 is cut | disconnected suitably in accordance with the magnitude | size of the opening formed in the boundary wall 7. As shown in FIG. At this time, the order joint 11 according to the present invention is made of a rubber of a relatively thin material with an iron plate embedded therein, it can be cut relatively easily as desired. Then, both fixing parts 15 of the cut order joint correspond to both edges of the separation gap 9 formed in the boundary wall 7. At this time, it is preferable that the protrusions 19 correspond to the boundary wall surfaces. Then, it is simply fastened to the boundary wall 7 using a plurality of bolts (18 in FIG. 4) through the bolt fastening holes 17 formed in the respective fixing portions 15.

On the other hand, Figure 4 is a longitudinal cross-sectional view of Figure 1, a view showing the installation state of the bridge top plate joint according to the present invention. The order joint 11 which blocked the opening 8 of the boundary wall 7 can bend the longitudinal edge 16 downward, as shown in the figure, and the plate surface and the boundary wall 7 of the order joint 11. Put it in between. The reason for this is to prevent corrosion of oxygen and water by acting on the reinforcing plate 20 embedded in the fixing part 15, that is, the iron plate. At this time, the bending of the order joint 11 can be easily made due to the properties of the material.

In addition, the operator may cut the order joint 11 to have a width wider than the height of the boundary wall 7, or may include the order joint 11 having a width wider than the height of the boundary wall 7. . Even in such a case, the operator fastens the both sides fixing portions 15 of the order joint 11 to both edges of the separation gap 9 formed in the boundary wall 7, and then exposes the flange portion 16 exposed upward. (1) More precisely, it can be simply bent so as to correspond to the upper surface of the sidewalk 3.

On the other hand, the exposure 8 to the upper side of the separation gap (2) formed in the bridge top plate 1 may be blocked by the expansion joint device (31). 5 is a partial perspective view showing a state in which the order joint according to the present invention is installed on the bridge top plate is installed expansion joint device. The expansion joint device 31 is installed on the outer surface of the horizontal member 33 and the vertical member 35 extending horizontally along the longitudinal direction of the plate-shaped vertical member 35 and the upper edge of each vertical member 35. Having an anchor 37. The reinforcing bar 21 is accommodated in the anchor 37 and are integrally coupled to each other by the connecting member 23.

The anchor 37, the reinforcing bar 21 and the connecting member 23 is buried in the concrete serves to support the stretching body (32). At this time, the horizontal member 33 of the expansion and contraction body 32 is exposed to the upper portion to block the opening 8 to the upper side of the separation gap 2 formed between the bridge top plate 1 and the top plate (1). This horizontal member 33 also forms a partial road surface of the driveway 3 or the sidewalk 5.

In the bridge top plate 1 provided with the expansion joint 31, the order joint 11 having the same configuration and shape as described above can be simply installed as described above. At this time, the expansion joint 31 blocks the opening 8 to the upper side formed by the clearance gap 2 between the bridge top plate 1 and the top plate 1, and the order joint 11 Effectively blocks the side opening 9 formed in the boundary wall 7 partitioning the sidewalk 3 and the driveway 5.

Thus, the bridge top plate order joint 11 as described above can block the opening 9 formed in the boundary wall 7 of the bridge top plate 1 to improve the appearance of the appearance, rainwater and garbage Intrusion of foreign substances such as can be blocked. At this time, it can be stretched in conjunction with the expansion and contraction according to the temperature change of the top plate 1, it is possible to maintain the blocking state for a relatively long time without being damaged or deformed. In addition, due to the characteristics of the material, it is not easily polluted by soot or rain water, and can be easily cleaned even when it is dirty, and there is no fear of corrosion.

The order joint 11 for bridge decks also provides excellent characteristics that the operator can cut and use it arbitrarily and can be easily bent according to the working environment, so that it can be easily installed.

On the other hand, in the above-described and illustrated embodiments, while the central elastic portion 13 has been described as having a hollow body shape, it can be formed as a sealed elastic portion, in this case, the elasticity may be somewhat reduced, but more It is easy to produce.

In addition, although the order joint 11 for bridge decks has the single telescopic part 13 in the center area | region, it has a telescopic part 13 on both sides with the plate-shaped fixing part 15 in between. Order joints can be provided. At this time, coupling portions are formed at both end portions of the expansion and contraction portion, and the coupling portions are respectively coupled to both end portions of the clearance gap. Of course, the above-described effects can be provided.

As described above, according to the present invention, there is provided an order joint for bridge deck that can be manufactured at a relatively low cost and can provide excellent barrier properties and workability.

Claims (3)

In the order joint for blocking the clearance gap formed in the boundary wall region bent from the road surface between a pair of continuous bridge deck, A cylindrical stretchable portion having a pair of corrugated plates substantially parallel to each other with a stretchable material; A pair of plate-shaped fixing parts formed integrally with the same material as the stretchable part at both ends of the stretchable part and fixed to the pair of bridge top plates, each having a protruding portion along a longitudinal direction at both edges thereof; And And a reinforcing plate embedded in the fixing part along the plate surface. delete delete