KR200247441Y1 - Connection Unit for Road and Bridge - Google Patents

Abstract

The present invention discloses a road and bridge connecting unit that is excellent in flatness and that can prevent foreign matter from penetrating into the internal structure.

In order to secure the surface of the road and bridge joints, and to completely prevent the infiltration of foreign objects, the present invention is anchored to the joints of the roads and bridges, and both sides of the joints, respectively, and overlaps the upper ends. It consists of an upper overlapping portion extending the upper end as much as possible, a cushioning material provided below the upper overlapping portion, and upper and lower covers disposed above and below the buffering material.

Accordingly, the present invention is excellent in the flatness of the road and bridge connecting parts, and the ride comfort of the vehicle is excellent, and the vibration and shock are not generated so that the life of the facility can be extended, and the occurrence of defects such as infiltration of foreign matters There is little effect such as low maintenance and repair costs.

Description

Connection Unit for Road and Bridge}

The present invention relates to a road and bridge connecting unit installed in the road and bridge connecting portion.

As is well known, a portion where a road and a tunnel are connected, or between a top plate and a top plate of a bridge, needs an appropriate interval in case of thermal expansion and contraction caused by a crossover or seasonal temperature difference. When the vehicle passes the gap, shocks and noises are generated due to vibration, which causes a problem of damage to the structure and deterioration of the vehicle.

Therefore, a conventional stretch connection for solving this problem is shown in FIG.

As can be seen from the prior art, a concrete beam 11 is installed with a constant interval N, and the neoprene rubber 7 is covered with the interval N. The rubber 7 is fixed to the beam 11 by anchor bolts 8 and nuts 9, and reinforcement steel plates 4, 5, 6 are embedded therein. Asphalt 10 is covered by beams 11 positioned on both sides of the rubber 7. The rubber 7 accommodates the expansion and contraction of the beam 11 and the asphalt 10 and at the same time ensures that the road surface has flatness.

However, in the conventional expansion joint as described above, due to the expansion of the beam 11 and the asphalt 10, the rubber 7 protrudes upward as shown by the dotted line shown in FIG. And as the vehicle passes through the protrusion, the protrusion flows up and down, and if such a phenomenon is repeated for a long time, the rubber is damaged by its own cracking, so there is a problem in that it must be replaced.

In addition, in order to replace the rubber (7) has to loosen the nut (9) and the reinforcing steel plate (4, 5, 6) installed inside the rubber 7, there is a disadvantage that the replacement work is cumbersome.

Therefore, recently, Patent No. 283364 published in the Republic of Korea Patent Publication (name of the invention: expansion joint device; hereinafter referred to as 'quoted invention') has been proposed.

This invention is cited in the expansion joint connecting the upper plate 50 and the upper plate 50 of the bridge continuously installed at a predetermined interval (D), as shown in Figure 2, the upper plate 50 and the upper plate (50) Are installed on opposite surfaces 50a and 50b of each of the upper and lower surfaces of the upper and lower surfaces 50a, 50b and 50b. A pair of first supporting members 110 to prevent the 60 from being pinched and to prevent the vehicle from being impacted by the height difference between the opposed upper plates 50; A bracket 120 provided between the upper plate 50 and the first supporting member 110 to transfer the stretching motion of the upper plate 50 to the first supporting member 110; It is provided between the first support member 110 of the pair (111, 112) and interlocked with the first support member 110, when the vehicle passes the first support member 110 of the pair (111, 112) At least one second supporting member 130 which prevents the wheel 60 from being caught between the gaps and prevents the vehicle from being impacted by the height difference of the first supporting member 110; A pair of posts 140 extending to the lower side of the second supporting member 130 and having rectangular through-holes 141 formed on one side thereof, respectively; One end is connected to the bracket 120 and the other end is connected to the post 140 to prevent the first supporting member 110 and the second supporting member 130 from being lowered by external force and its own weight. Member 150; One end is connected to the post 140 and the other end is connected to the adjacent first connection member 150, so that the first support member 110 and the second support member 130 are lowered by an external force and its own weight. At the same time, the second connecting member 160 to the second support member 130 also interlocked as the first support member 110 closer to each other and away from each other; One end is rotatably connected with one end of the second connection member 160 at the top of one of the pair of posts 140, and the other end is connected to the first connection member at the bottom of the other post 140. The third connection member 165 is connected to the other end of the 150, the other end of the first connection member 150 is moved up and down along the rectangular through hole 141 formed in the lower portion of the other post 140 together And by the stretching action of the first connection member 150, the second connection member 160, and the third connection member 165 connected to the bracket 120 and the post 140. The expansion joint is characterized in that the interval between the first and second supporting members (110, 130) is adjusted.

Therefore, this cited invention has a different time for each wheel 60 of the vehicle to pass the interval of the expansion joint. That is, when one wheel 60 passes through the support members 110 and 130, the other wheel 60 passes through the gap between the support members 110 and 130. Therefore, the shock transmitted to the vehicle and the bridge is reduced. In addition, since the support members 110 and 130 are made of a high strength material such as metal, they are not easily damaged. In addition, it is possible to adjust the amount of expansion and contraction of the expansion joint according to the amount of expansion of the bridge by adjusting the number of support members (110, 130) located in the middle. In addition, since the upper rails of the support members 110 and 130 can be easily installed and replaced, the installation and maintenance thereof can be easily obtained.

On the other hand, the cited invention has a foreign matter receiving plate 170 for receiving various foreign matters on the road penetrating between each of the supporting members (110,130).

The foreign matter receiving plate 170 may prevent foreign matter from penetrating into the first connection member 150 and the second connection member 160 installed below, but since the foreign material receiving plate itself is formed in such a manner that the foreign material receiving plate 170 is removed from time to time. If it is not given, there is a high possibility of impairing the expansion function, which requires a huge amount of manpower for maintenance and repair.

In particular, the foreign matter receiving plate 170 is mainly made of neoprene rubber, etc., because it is used in a very poor condition subjected to high heat, cold and vibration, etc., so that it is damaged due to cracks for some time, so frequent replacement is required. There is a problem that maintenance costs are enormous.

In another form, Korean Unexamined Patent Application Publication No. 2000-0016505, published in the Korean Utility Model Publication (designated name: integrated rubber sheet joint; hereinafter referred to as 'quoting proposal'), was proposed.

This is a rectangular cube having a length in accordance with the width of the bridge, etc. to be installed as shown in Figure 3, the rubber plate 1 having a curved cutout 11 on its lower surface and a friction groove 12 on its upper surface A steel bar 13 having a predetermined length therein is built-in at intervals; A plurality of bolt holes for the fastening bolts 51 are drilled in the outer wing portion 22, and a cross section in which the wing portion 22 and the support portion 21 are inserted at both ends in the width direction of the rubber plate 1 and bound is 'ㅛ'. A support angle (2) formed in a shape of a child; A plurality of supports supported on the base concrete 7 and the reinforcing bars 8 are provided on the plane supporting the center lower surface of the support angle 2 and the rubber plate 1 on one side and the plate angle 3 curved from the vertical. An anchor bolt 6 is mounted; A plurality of anchor bolts 6, which are the same as the plate angle 3, also have an isotropic angle 4 facing the vertical portion of the plate angle 3 to be spaced apart from each other by a predetermined distance and supporting the lower end of the support angle 2 on the other side. Mounted; The contact bars (2) are seated on the wing portions (22) of both support angles (2, 2) and are integrally fastened by the support angle (2) and the plate angle (3) or isotropic angle (4) and the fastening bolt (51) integrally. 5) consists of.

Therefore, it is integrated and does not interfere with the running vehicle, can be folded to a predetermined length, can be convenient for transportation and storage, and provides an advantage of excellent cushioning action.

On the other hand, according to the cited proposal, a series of processes consisting of a large number of parts are complicated, resulting in low workability, and wear of the friction recess 12 of the rubber plate 1 causes wear of the vehicle to drive this part. There is a risk of deterioration of safety, and in severe cases, the steel bar 13 of the inner layer may be exposed to damage the tires of the vehicle. There is a problem that increases.

In order to solve this problem, the present invention makes the surface of the road and bridge joints flat and solid, and completely prevents the ingress of foreign substances into the road and bridge joint ends, and allows the road and bridges to be smoothly stretched. The purpose is to propose a connection unit.

1, 2 and 3 are exemplary views showing conventional road and bridge connecting means.

Figure 4 is a cutaway perspective view showing the structure of the road and bridge connecting unit according to the present invention.

Figure 5 is a longitudinal cross-sectional view of the construction state of the road and bridge connecting unit according to the present invention.

Figure 6 is an illustration of the operating state of the road and bridge connecting unit according to the present invention.

* Explanation of symbols for the main parts of the drawings

1: concrete beam 2: foundation concrete

3: anchor 4: extension part

5: upper overlapping part 6: main part

7: cushioning material 8: bending portion

9, 10: upper and lower cover C: overlap

d: step

The purpose of the present invention is the connection part of the road and the bridge, the upper and the overlapping portion is fixed to the both sides of the connecting portion, respectively, the upper end to extend so that the upper end overlaps, the cushioning material provided below the upper overlapping portion, the upper and lower of the cushioning material It consists of the upper and lower cover disposed.

Accordingly, the present invention is excellent in the flatness of the road and bridge connecting parts, and the ride comfort of the vehicle is excellent, and the vibration and shock are not generated so that the life of the facility can be extended, and the occurrence of defects such as foreign matter penetration There is little effect such as low maintenance and repair costs.

Referring to the present invention in more detail as follows.

The present invention has a structure as shown in FIG. 4, and fixes the anchors 3 embedded in the foundation concrete 2 formed at the ends of the concrete beams 1 of the roads and bridges. Two upper overlapping portions 5 having overlapping portions C overlapping with each other,

Located above and below the two upper overlapping portions 5, the upper and lower covers provided with a cushioning material 7 having a recessed portion 6 in the center and a bent portion 8 above and below the buffering material 7 9, 10).

The present invention thus constructed is to be constructed in the state shown in FIG.

The present invention first, cut the end of the concrete beam (1) of the road or bridge and place the unit according to the present invention, and then the foundation concrete (2) is poured and cured.

As can be seen from this, the present invention does not expose the empty space between the joints of the concrete beams (1) of the road or bridge after completion of construction, and only the step (d) of the thickness of the steel plate exists so that the flatness is excellent. The driving comfort is not impaired.

In addition, because of the excellent flatness as described above, the vibration generated by the driving of the vehicle is also minimized so as not to burden the roads and bridges.

In other words, in the present invention, when the vehicle passes through the upper overlapping portion 5, the load is endured by the overlapped extensions 4, and the connection flatness at this time is determined by the thickness of the extensions 4, In fact, only a few mm has excellent flatness, and since both sides are paved with asphalt, comfortable driving is possible.

In addition, stretching of roads or bridges occurs due to a crossover or a change of seasons, and thus an end of the concrete beam 1 is stretched. This change is to move the position of the upper overlapping portion 5, the width overlapping the extension portion 4 of the upper overlapping portion 5 is changed, and in any case there is an overlapping portion, so the gap is widened No impairment of runability or infiltration of foreign matter.

In addition, in the present invention, as shown in FIG. 6, when the end of the structure is extended so that the inner side of the upper overlapping portion 5 comes into contact with the shock absorbing material 7, the shock absorbing material 7 made of a material such as neoprene rubber is mainly used for vibration. Absorption function, in particular, the present invention is to bend the upper portion 8, the lower portion of the cover (9, 10) is to maintain a smooth function to stabilize the position of the cushioning material in the upper and lower, overlapping portion (C) and Along with this, it is possible to minimize the costs associated with maintenance and repair because it prevents foreign matter from penetrating into the cushioning material (7), and thus requires no maintenance or repair.

In this way, the present invention does not require additional screw fastening or assembling work when installing units for new construction of roads and bridges due to seasons or crossovers, and the construction can be completed by simple laying. In addition, the present invention is not only a structure that is difficult to penetrate the foreign matter in the construction state, but also the cushioning material and the upper and lower covers are located inside the upper overlapping portion to heat, vibration, impact As it is protected from foreign matters, it has a long lifespan and thus has a useful effect of minimizing the burden of maintenance and repair costs.

Claims (1)

Two anchors (3) buried in the foundation concrete (2) formed at the ends of the concrete beam (1) of the road and bridge, and having an overlapping portion (C) in which the upper extension (4) overlaps Top overlaps 5, Located above and below the two upper overlapping portions 5, the upper and lower covers provided with a cushioning material 7 having a recessed portion 6 in the center and a bent portion 8 above and below the buffering material 7 Road, bridge connecting unit, characterized in that consisting of 9, 10).