KR200215630Y1 - Expansion joint for bridge - Google Patents

Abstract

The present invention relates to an expansion joint for a bridge that connects the upper plate of a large leg, both sides of the reinforcing member is formed inside the space and the cross section is rectangular, and fixed to the upper and lower surfaces of the reinforcing member tightly to hold the elastic member The main body consists of upper and lower binding members protruding from the binding protrusions, and both sides are fixedly installed at both ends of the upper joint of the bridge, and a plurality of them are horizontally connected between the two fixing members, and the upper and lower sides of both joint surfaces are installed. Connection grooves are formed in the upper and lower sides of the "V" shaped cross-section of the folds and the flat portion is formed in a continuous form, and the connection formed on the upper and lower sides of the joint surface of the portion where the elastic members are connected to each other It is interposed between the upper and lower connection members formed with a connection stone piece to be inserted into the groove, and the elastic members connected by the upper and lower connection members, The cylinders are integrally coupled to the upper and lower connection members, and are installed at predetermined intervals to penetrate each of the joining surfaces of the elastic member closely adhered to both sides of the metal sheet and the metal sheet, and are welded to the metal sheet. It is designed to consist of a steel wire member penetrating the member and the cylinder member and the elastic members, both ends penetrate through the inner surface of the reinforcing member of both fixing members to enter the intermediate position of the space portion.

Description

Expansion joint for bridge

The present invention relates to an expansion joint for bridges connecting the upper plates of large legs.

In general, in the case of bridges constructed in rivers or rivers, expansion joints are installed at a certain distance to prevent the bridge from being damaged by absorbing and mitigating the expansion and contraction of the bridge deck.

The expansion joint of the prior art is commonly seen with the naked eye while passing through a bridge, and two joint members having an uneven shape, such as a comb teeth, are assembled as if teeth are engaged with each other. These expansion joints are designed to absorb and mitigate the expansion and contraction of the bridge deck, so that the uneven parts that interlock with each other are provided with a space that can absorb the expansion when the roof is expanded. Rainwater flowing into the open space leaks into the open space, causing the rainwater to penetrate into the top plate, which promotes corrosion of the bridge.In addition, when the bridge is contracted, the uneven portions are absorbed when the bridge is absorbed and alleviated. Since the length of the concave-convex portions must be formed long so as not to be dislodged, there is a problem that the size of the expansion joint is increased and the manufacturing cost is very expensive.

As mentioned above, since all conventional expansion joints are mostly made of metal and are composed of teeth engaging type, expansion joints are leaked and moisture penetrates into the bridge to promote corrosion. There is a problem that the manufacturer is expensive.

The present invention has been made in view of the above-mentioned problems appearing in the conventional expansion joint, it is possible to horizontally connect several elastic members made of rubber material between the fixing members on both sides fixedly installed on both sides of the upper joint of the bridge The purpose of supporting the elastic members to be a steel wire member to withstand the weight of the vehicle and to absorb and alleviate the contraction and expansion of the upper plate while the expansion and contraction members are stretched in accordance with the contraction and expansion of the bridge deck at the same time. In addition, the expansion and contraction member is to prevent the leakage of moisture completely to prevent the penetration of moisture into the interior of the top plate is another purpose to further extend the installation life of the bridge.

The present invention as a means for achieving the above object,

The upper part of the bridge is composed of the upper and lower joints protruding from both sides of the reinforcement is formed in the interior and the rectangular cross-section, the upper and lower sides of the reinforcing member, and the binding protrusion pieces that hold the elastic member on one side. Both side fixing members fixed to both ends of the unit;

A plurality of horizontally connected between the fixing member is installed between the two sides, the connecting grooves are formed on the upper and lower sides of both joining surfaces, and the upper and lower surfaces are formed continuously in the corrugated portion and the flat portion forming the cross section of the "V" shape. An elastic member;

Upper and lower connection members having connection protrusions inserted into connection grooves formed on upper and lower sides of both joining surfaces of portions where the elastic members are connected to each other;

A metal plate interposed between the elastic members connected by the upper and lower connecting members and integrally coupled to the upper and lower connecting members as a bolt;

A cylinder member which is installed at a predetermined interval through each of the joining surfaces of the stretchable member in close contact with both sides of the metal sheet and the metal sheet, and is welded to the metal sheet; And

A steel wire member penetrating through the cylinder member and the elastic members, the both ends penetrating through the inner surfaces of the reinforcement members of both fixing members to enter an intermediate position of the space portion;

It is characterized by consisting of

In addition, the upper and lower planar portions are connected to the inside of the elastic member by reinforcing ribs, and metal plates are inserted into the spaces formed inside both joining surfaces of the elastic member to enhance the connection strength of the elastic members, and the reinforcement members of the both fixing members are provided. It is characterized in that it is fixed to the cylinder member for sliding operation while wrapping both ends of the steel wire member inside the.

1 is a cross-sectional view for showing the overall configuration of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a cross-sectional view taken along the line B-B in FIG.

4 and 5 is a cross-sectional view of the operating state of the present invention.

※ Explanation of code for main part of drawing

1: stretchable member 2: upper plate joint

3: fixing member 4a, 4b: upper and lower connecting member

5 metal member 6 cylinder member

7: steel wire member 11: joint surface

12: connecting groove 13: folds

14: flat part 15: reinforcing rib

31: reinforcing material 32a, 32b: upper and lower binding material

33: binding stones 41a, 41b: connecting stones

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view for showing the overall configuration of the present invention, Figure 2 is a cross-sectional view taken along line AA of Figure 1, Figure 3 is a cross-sectional view taken along line BB of Figure 1, Figures 4 and 5 As shown,

Reference numeral 1 denotes an elastic member, and the elastic member 1 is made of a rubber material having high strength and elasticity, and connecting grooves 12 are formed on the upper and lower portions of both joining surfaces 11, and the upper and lower surfaces thereof. The corrugation part 13 and the flat part 14 which have a "V" shape in cross section are alternately formed in succession several times.

In addition, the reinforcing member 1 has a plurality of reinforcing ribs 15 connecting the flat portion 14, and space portions 16 are formed on both sides of the joint surface 11, respectively. The metal plate 17 is inserted into 16.

The elastic member 1 is a plurality of horizontally connected, the elastic member 1 located on both sides is coupled to the fixing member (3) which is fixed to both ends of the upper plate joint (2) of the bridge.

The fixing member 3 is formed in a rectangular cross section and the reinforcing material 31 having a space S is provided, and the upper and lower bonding materials 32a which are closely attached to upper and lower surfaces of the reinforcing material 31 and bound by bolts. It consists of a (32b), the upper and lower coupling members (32a, 32b) is fitted into the connecting grooves (12) formed on the upper and lower one side joining surface 11 of the stretchable member 1, the one side joining surface (11) The binding stone piece 33 which catches () protrudes.

The upper and lower connecting members 4a and 4b for horizontally connecting the elastic members 1 are inserted into the upper and lower connection grooves 12 of the elastic members 1 facing each other and positioned at both sides to be joined to each other. 11) The connecting stone pieces 41a and 41b which hold the upper and lower ends protrude.

The upper and lower connecting members 4a and 4b are screw-assembled with a bolt and a metal plate 5 interposed between the elastic members 1 connected by the upper and lower connecting members 4a and 4b. 4b) and the elastic members 1 on both sides are connected to each other in a state where they are firmly coupled to each other.

As described above, in the central portion of the metal plate 5 interposed between the plurality of elastic members 1 horizontally connected by the upper and lower connecting members 4a and 4b, a plurality of cylinder members ( 6) is welded, both ends of the cylinder member 6 to penetrate the joint surface 11 and the space 16 and the metal plate 17 of the elastic member 1 in close contact with both sides of the metal plate (5). Consists of.

And the plurality of expansion and contraction members (1) horizontally assembled between the fixing member (3) of both sides is configured to withstand the load by a plurality of steel wire member (7) crossing at regular intervals in the center portion.

That is, the steel wire member 7 penetrates through the central portion of the elastic members 1 in a state in which both ends thereof extend to the middle portion of the space S formed in the reinforcement 31 of both fixing members 3. At the same time, it is configured to penetrate the center hole of the cylinder member 6 which is welded to the center of the metal plate 5 at a predetermined interval, and the steel wire member 7 is fixed in place, but the elastic member 1 And the cylinder member 6 and the reinforcement 31 of both sides is configured to enable the sliding movement of the outer peripheral surface of the steel wire member (7).

In addition, both ends of the steel wire member (7) extending to the middle portion inside the reinforcement member 31 of the both side fixing member 3 is inserted into the cylinder member (8) welded inside the reinforcement member (31) In this way, the cylinder member (8) surrounding both ends of the wire member (7) is to guide the sliding movement of both sides of the fixing member (3) on both ends of the wire member (7) during expansion and contraction operation of the expansion member (1) Along with the action, the action of enhancing the installation strength of the wire member 7 is shown.

The expansion joint of the present invention configured as described above is connected to both ends of the upper plate joint part 2 of the bridge, so that the expansion joint is installed long in the width direction of the bridge, and the metal plate member installed between the elastic member 1 and the elastic member 1 ( 5) The steel wire members 7 penetrating the cylindrical member 6 and the elastic members 1 welded to 5 are configured to withstand the weight of the vehicle passing through the bridge at a predetermined interval, the operation of the present invention Explain.

1 is a view showing an installation state in a state that the upper plate of the bridge is not contracted or expanded, in this case the wrinkles 13 formed on the upper and lower surfaces of each of the elastic members 1 connected in a horizontal state In other words, it is a state in which the expansion or contraction operation is not in progress, and the steel wire members 7 are responsible for the load of the vehicle, etc. acting on the upper and lower surfaces of each of the elastic members 1 connected horizontally. ) Are supported by several cylinder members 6 and the cylinder members 6 are supported by a metal plate 5 interposed between the connecting parts of the expansion and contraction members 1. The member 1 is capable of supporting a load acting on its upper surface without sagging.

4 is an operating state when the upper plate of the bridge contracts, in which case both fixing members 3 fixedly fixed to both ends of the joint 2 of the upper plate move together with the joint 2 of the upper plate in the contracting direction. When the expansion force applied to both of the expansion and contraction members 1 directly connected to both fixing members 3 is equal to each of the expansion and contraction members 1, which are integrally connected by the upper and lower connection members 4a, 4b. Since each of the expansion and contraction members (1) is the same as the expansion, so when the expansion and expansion of each expansion member (1), the flat portion 14 of the upper and lower surfaces is connected to the reinforcing ribs 15, the expansion action While this does not occur, only the gap is opened as the upper and lower pleats 13 are expanded. In addition, the upper and lower connecting members (4a) and (4b) connecting the expansion and contraction members (1) even if each of the expansion and contraction members (1) as a whole in the expanded state by the expansion action of the pleats 13 are the plane Instead of inflating, as shown in the part 14, only the installation interval is opened, wherein the cylinder member 6 integrally formed with the upper and lower connecting members 4a and 4b slides on the steel wire member 7. By guiding the movement of the metal plate 5 and the upper and lower connecting members (4a, 4b) position by the action of the expansion member 1 is to smoothly proceed.

Meanwhile, as described above, both ends of the fixing member 3 are opened by contraction of both ends of the joint part 2 of the bridge, and the wire member 7 does not change even when the expansion and contraction of each of the expansion and contraction members 1 proceeds. At this time, both ends of the steel wire member (7) is the space (S) formed in the reinforcement 31 of the both side fixing member (3) at the time of installation in consideration of the maximum contraction distance of the upper plate joint (2) of the bridge It is installed to extend to the middle portion of the, the distance to the middle portion of the reinforcing material 31 is a state longer than the maximum contraction distance of the bridge. Therefore, even when the upper plate joint portion 2 of the bridge is fully contracted, both ends of the steel wire member 7 support each of the expansion and contraction members 1 in a state in which the reinforcing member 31 is suspended. (1) It will be able to withstand the load of the vehicle traveling upwards.

5 is a view showing an operating state when the top plate of the bridge is inflated, in this case, when the bridge joint (2) is inflated, both fixing members (3) compress the expansion member (1) Accordingly, each of the expansion and contraction members 1 is contracted by a compressive force, and at this time, the expansion and contraction members 1 are horizontally connected by the upper and lower connection members 4a and 4b in the same manner as in the contracting action of the bridge. The same contraction force acts, and the contracting action of each of the expansion and contraction members 1 is made by folding only the pleats 13 on the upper and lower surfaces, and the cylinder members 6 slide on the steel wire member 7. While guiding the contracting action of each expansion and contraction member (1) and the steel wire member (7) supports the load of the vehicle passing through the bridge while guiding the contraction action of the elastic member (1). And since the space portion S of the fixing member 31 which accommodates both ends of the steel wire member 7 is configured to ensure sufficient space in consideration of the maximum expansion distance of the upper plate joint portion 2 of the bridge, both sides fixed Even when the member 3 is contracted at minimum intervals, both ends of the steel wire member 7 remain in contact with the opposite side of the reinforcing member 31, so that each elastic member does not interfere with the contracting action of both fixing members 3. (1) will be firmly supported.

As the bridge top plate contracts or expands as described above, both ends of the steel wire member 7 supported by both fixing members 3 may be expanded and contracted by the expansion and contraction members 1. Since both ends of the steel wire member 7 are firmly supported by both side fixing members 3 because they are inserted into the cylinder member 8 welded to the cylinder member 8, a large load acts on the stretching member 1. Even if you do have strength to overcome this.

On the other hand, each of the expansion and contraction members (1) for absorbing and mitigating the contraction and expansion of the bridge top plate in a horizontally connected state between the top plate joints (2) of the bridge as described above, the upper and lower connecting members (4a) (4b) ) And the metal plate (5) are integrally connected, so when the vehicle traveling on the bridge stops, even if you make a quick start or stop when the wheel of the vehicle is stopped on the expansion member (1) Each of the expansion and contraction members (1) is characterized by effectively absorbing and mitigating the shock caused by the sudden start or stop of the vehicle by going along with the contraction and expansion in the direction of the force applied.

And the metal plate 17 is inserted into the space portion 16 formed on both joining surfaces 11 of the expansion and contraction member 1, each of the expansion and contraction members 1, the upper and lower coupling member 32a (of the fixing member 3) ( 32b) of the elastic member 1 together with the action of allowing the binding protrusion piece 34 and the upper and lower connection protrusion pieces 41a and 41b of the upper and lower connection members 4a and 4b to be firmly fixed. It is a characteristic that increases the strength.

In particular, each of the expansion and contraction members (1) of the present invention is formed of a rubber material, the binding protrusion pieces 33 and the upper and lower connection members (4a) of both fixing members (3) which are fixed to both ends of the upper plate joint (2) of the bridge Since it is closely bound to the connecting stone pieces 41a and 41b of (4b), it is possible to prevent rainwater or the like flowing over the bridge from seeping into the inside of the joint 2 of the upper plate.

According to the present invention as described above, a plurality of steel wire members passing through the bridge at a predetermined interval to support a plurality of elastic members horizontally connected to both sides fixed members installed fixed to both ends of the upper plate joint of the bridge of the vehicle passing the bridge It can be expected to fully support the load, and the expansion and contraction operations of each of the horizontally connected expansion and contraction members can be expected to effectively absorb and relieve the contraction and expansion of the bridge. In particular, the expansion and contraction member of the present invention is useful to bring the effect of extending the installation life of the bridge because it can prevent the rainwater, such as to penetrate the upper plate of the bridge.

Claims (3)

The upper part of the bridge is composed of the upper and lower joints protruding from both sides of the reinforcement is formed in the interior and the rectangular cross-section, the upper and lower sides of the reinforcing member, and the binding protrusion pieces that hold the elastic member on one side. Both side fixing members fixed to both ends of the unit; A plurality of horizontally connected between the fixing member is installed between the two sides, the connecting grooves are formed on the upper and lower sides of both joining surfaces, and the upper and lower surfaces are formed continuously in the corrugated portion and the flat portion forming the cross section of the "V" shape. An elastic member; Upper and lower connection members having connection protrusions inserted into connection grooves formed on upper and lower sides of both joining surfaces of portions where the elastic members are connected to each other; A metal plate interposed between the elastic members connected by the upper and lower connecting members and integrally coupled to the upper and lower connecting members as a bolt; A cylinder member which is installed at a predetermined interval through each of the joining surfaces of the stretchable member in close contact with both sides of the metal sheet and the metal sheet, and is welded to the metal sheet; And A steel wire member penetrating through the cylinder member and the elastic members, the both ends penetrating through the inner surfaces of the reinforcement members of both fixing members to enter an intermediate position of the space portion; Expansion joint for bridges, characterized in that configured to include. The method of claim 1, An expansion joint for a bridge, characterized in that the upper and lower planes are connected to the reinforcing ribs inside the elastic member, and metal plates are inserted into spaces formed on both inner sides of the elastic member to increase the connection strength of the elastic member. The method of claim 1, An expansion joint for a bridge, characterized in that the cylinder member for guiding the sliding operation while increasing the installation strength of the steel wire member while guiding sliding of both ends of the steel wire member inside the reinforcing members of the both side fixing members.