KR100418833B1 - Lifting method and apparatus of the bridge beam - Google Patents

Abstract

The present invention relates to a bridge lifting method and apparatus for lifting a bridge beam on one side and the other side of the bridge at the same time, and one, the bridge supporting the bridge beam of the other superstructure, respectively, the other bridge device on the upper surface of the bridge In raising the bridge beam in the installed state, preparing a load-sharing support having a groove having a rear opening at both sides of the rear so as to pass through the one and the other bridge device, and a groove of the load-sharing support of one and the other side. After inserting through the bridge device, one, the upper surface of the load-sharing support portion in close contact with the lower surface of the other bridge beam is installed, and one or more jacks that are fluidly operated between the lower surface of the load-sharing support portion and the upper surface of the piers And extending the jack, and simultaneously pulling up one, the other bridge beam of the other superstructure, and the bridge beam pulling method.

In addition, in a bridge having one, the other beam structure of the other superstructure, respectively, on both sides of the upper surface of the bridge, and the other bridge device is installed, both sides of the groove is open to the rear so that the one, the other bridge device can be inserted A load sharing support portion having an upper surface and closely attached to the lower surface of the one and the other bridge beams, and one or more jacks mounted on the lower surface of the load sharing support portion and the upper surface of the bridge and simultaneously lifting the one and the other bridge beams. Characterized in that the bridge beam lifting device configured.

Description

Lifting method and apparatus of the bridge beam

The present invention relates to a method and apparatus for raising a bridge beam to replace a bridge device supporting a superstructure of a bridge, and more particularly, to a bridge lifting method and apparatus for allowing a bridge device to be replaced quickly. It is about.

Generally, a bridge is a general term for various structures that are made to cross rivers, valleys, and pit grounds.

The bridge is composed of a lower structure consisting of a plurality of bridges erected vertically, and an upper structure that is installed on top of the bridges, the upper structure, a plurality of upper and lower parts of the upper plate is mounted on the top of the bridges It consists of a reinforcing beam mounted.

On the other hand, on the top of the bridges of the substructure, a bridge device for supporting the bridge beam is installed to transfer the load generated from the superstructure to the substructure, the bridge device is to minimize the impact occurring on the superstructure and change the temperature To counteract the expansion and contraction of the superstructure according to, typically divided into metal or rubber.

However, as rainwater or contaminants penetrate into the teaching device, the teaching device made of metal causes corrosion and the teaching device made of rubber becomes damaged, and thus it is often impossible to perform the function of the teaching device.

Therefore, when replacing the damaged device as described above, the impression of the superstructure must be preceded. Therefore, in the case of raising the upper structure, by installing a jack on the top of the bridge where the bridge device is raised to raise the overall structure consisting of the bridge beam and the top plate as a whole.

However, in raising the upper structure as described above, when the space on the upper surface of the pier is narrow according to the type of bridge device or bridge, it is difficult to install the jack, there was a problem that a lot of difficulties in raising the upper structure.

In addition, in raising the upper structure through the jack, excessive pulling force is applied to the end by only lifting a single bridge beam, so that the end of the bridge beam is directly damaged. First of all, the apparatus and method of the present invention, which are known as "a device for raising a bridge beam using a reverse hypothesis bracket, and a method thereof '' of Korean Patent Application Laid-Open Publication No. 2001-58856, are as follows. A reverse hypothesis bracket which is coupled to and supports the upward direction, a support beam that is coupled to a lower portion of the engaging portion provided on the side of the reverse hypothesis bracket to support the reverse hypothesis bracket upward, and the support beam and the pier It is characterized by a device that is provided between the upper surface of the lifting device composed of the lifting means for raising the PC beam. Installing a reverse hypothesis bracket on the support beam, supporting a support beam below the engaging portion of the mutually opposite hypothesis bracket kit, and installing a pulling means between the support beam and the upper surface of the intimacy; Therefore, the pulling method is characterized in that it comprises a pulling step. Thus, through the apparatus and method as described above, after installing the reverse hypothesis bracket to reinforce each end separately at the ends of both bridge beams, The purpose of raising both bridge beams by providing jacks at the bottom of the support beams after the supporting beams interconnecting the sides is achieved. However, the upper purpose of simultaneously lifting the lifting beams on both sides by the support beams is achieved. The reverse hypothesis bracket can be achieved, but the reverse hypothesis bracket is constructed by welding in the field with the lower plate and the two side plates separated. The install a separate support beam installed by following the jack on the bottom of the support beams on both sides to raise the bridge beam, it had a problem that takes a lot of the construction period in accordance with the impression of a PC beam.

Thus, the present invention was invented to solve the above problems, by forming a groove through which the bridge device passes on both sides of the load sharing support, simply and quickly to replace the bridge device by mounting the load sharing support to the lower portion of both bridge beams It is an object of the present invention to provide a method and apparatus for raising a beam of a bridge that can speed up construction.

The present invention for achieving the above object, one, the one to receive the bridge beam of the other upper structure, respectively, in raising the bridge beam in a state in which the other bridge device is installed on the upper surface of the bridge, both sides of the rear Preparing a load-sharing support having a groove having an open rear portion through the one or the other bridge device, and inserting the groove of the load sharing support into one or the other bridge device, and then loading the lower surface of the one or the other bridge beam. Closely installing the upper surface of the sharing support, installing one or more jacks fluidly operated between the lower surface of the load sharing support and the upper surface of the piers; The bridge beam lifting method comprising the step of simultaneously pulling the other bridge beam is characterized by.

In addition, in a bridge having one, the other beam structure of the other superstructure, respectively, on both sides of the upper surface of the bridge, and the other bridge device is installed, both sides of the groove is open to the rear so that the one, the other bridge device can be inserted A load sharing support portion having an upper surface and closely attached to the lower surface of the one and the other bridge beams, and one or more jacks mounted on the lower surface of the load sharing support portion and the upper surface of the bridge and simultaneously lifting the one and the other bridge beams. Characterized in that the bridge beam lifting device configured.

1 is a schematic view showing the installation state of the bridge beam lifting apparatus according to the present invention.

Figure 2 is an enlarged perspective view of the bridge beam lifting apparatus of the present invention.

Figure 3 is an exploded perspective view showing another embodiment of the bridge beam pulling apparatus according to the present invention.

Figure 4 is a state of use of the bridge beam lifting apparatus of another embodiment according to the present invention.

5 is a block diagram showing a manufacturing method of the present invention.

Explanation of symbols for main parts of the drawings

1: pier

11: upper surface

2: superstructure

21: bridge beam

22: teaching device

3: load sharing support

31: groove

32: anterior support

321: Jack mounting plate

33: posterior support

331 jack mounting plate

4: Jack

5: stretch pad

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

1 is a schematic view showing the installation state of the bridge beam raising apparatus according to the present invention, Figure 2 is an enlarged perspective view of the bridge beam raising apparatus of the present invention, first, the configuration will be described as follows.

In one of the bridges for supporting the bridge beam 21 of the other upper structure 2, the other bridge device 22 is provided on the upper surface 11 of the bridge (1),

The groove portion 31 is provided on both sides so that the one and the other bridge device 22 can be inserted, and a load sharing support part 3 having an upper surface closely attached to the lower surface of the one and the other bridge beam 21 and the load. It is composed of one or more jacks (4) mounted between the lower surface of the sharing support (3) and the upper surface (11) of the bridge (1) to simultaneously pull up the one, the other bridge beam (21).

And, by mounting the expansion pad (5) on the upper surface of the load-sharing support (3) consisting of the plate shape, by improving the adhesion between the load-sharing support (3) and the bridge beam 21, the bridge beam It is possible to prevent the shaking of the load sharing support part 3 during the pulling up.

Meanwhile, the jack 4 is operated through a separate hydraulic device (not shown), and the jack 4 may be an actuator type consisting of a cylinder and a rod, and a chamber type having elasticity may be used.

Figure 3 shows another embodiment of the bridge beam lifting apparatus according to the present invention, before the load-sharing support portion 3 is formed with grooves 31 into which the bridge device 22 (see Fig. 1) is inserted. At the rear, the front and rear support parts 32 and 33 are provided to hold the front and rear ends of the one and the other bridge beams 21.

In particular, the rear support part 33 mounted to the rear of the load sharing support part 3 is detachably mounted at the rear of the load sharing support part 3 and is fixed by bolts, so that the front and rear support parts 32 and 33 are The width can be adjusted.

In addition, the upper end of the front and rear support parts 32 and 33 provided at the front and rear of the load sharing support part 3 may be equipped with a jack 4 at each corner portion and the middle part of the load sharing support part 3. A plurality of jack mounting plates 321 and 331 are provided horizontally.

Accordingly, the front and rear support portions 32 and 33 hold the front and rear ends of the ends of the one and the other bridge beams 21, so that the load-sharing support portions 3 shake when the bridge beams 21 are pulled up. Of course, the load-bearing support 3 can be prevented from being separated from the lower surface of the bridge beam.

In addition, as the position of the rear support part 33 can be changed, the load sharing support part 3 can be used interchangeably regardless of the width of the bridge beam.

In addition, the jack 4 may be installed at the center of the load-sharing support, at the corners, or selectively at the front and rear of the center depending on the upper surface of the pier.

That is, as shown in FIG. 4, when the distance between the lower surface of the bridge beam 21 and the upper surface of the bridge is short, the jack 4 having a constant height cannot be mounted at the center of the lower surface of the load sharing support 3. Therefore, by selectively mounting four jacks 4 at two locations in the front and rear, or at each corner portion, which are lower portions of the jack mounting plates 321 and 331 provided at the upper ends of the front and rear support parts 33, one or the other side is selectively mounted. It is also possible to raise the bridge beam 21 at the same time.

Hereinafter, a method of raising the bridge beam through the pulling device configured as described above will be described.

As shown in Figures 1 to 5, one, the one to receive the bridge beam of the other superstructure, respectively, in raising the bridge beam in the state in which the other bridge device 22 is installed on the upper surface of the bridge (1), First, a step 100 of preparing a load-sharing support 3 with grooves 31 passing on one side and the other side of the device is performed.

Next, the groove portion 31 of the load sharing support part 3 is inserted through the one and the other bridge devices 22, and then the upper surface of the load sharing support part 3 is closely attached to the lower surface of the one and the other bridge beams 21. After step 101, step 102 of installing one or more jacks 4 on the bottom surface of the load-sharing support 3 and the top surface of the piers proceeds.

Finally, by stretching the jack 4 through a hydraulic device (not shown) to raise the bridge beam through the step 103 of simultaneously pulling the bridge beam 21 of one, the other superstructure 2, the bridge It is possible to replace the device.

After replacing the bridge device, the bridge beam is lowered in the reverse order. That is, the bridge beam is lowered through the operation of the jack 4, and then the jack 4 mounted on the lower portion of the load sharing support part 3 is removed, and then the bridge beam 21 of the load sharing support part 3 is removed. To separate at the bottom of the

Therefore, it is possible to uniformly distribute the pulling force of the jack (4) to one, the other bridge beam to prevent the end of the bridge beam caused by the excessive pulling force.

On the other hand, as shown in Figure 1, in the jack installation step by installing the jack 4 in the center of the top of the pier, which is the center of the load-sharing support 3, one jack 4 bridges on one side and the other The beam can be raised at the same time.

As shown in FIG. 4A, in the jack installation step, the jack 4 is installed in the center front and rear of the upper surface 11 of the piers 1, which is before and after the center of the load-sharing support 3, Through the jack (4) it is possible to simultaneously raise the bridge beam of one side and the other side.

In addition, as shown in Figure 4b, in the jack installation step, by installing the jack 4 in both front and rear sides of the upper surface 11 of the piers (1), which is each corner of the load-sharing support 3, four jacks ( 4) it is possible to simultaneously raise the beam beams of one side and the other.

As described above, the present invention forms a groove through which the bridge device passes on both sides of the load sharing support portion, thereby quickly and easily attaching the load sharing support portion to the lower portion of both bridge beams, thereby quickly replacing and replacing the bridge device. It is effective to shorten the most important construction period when replacing.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible.

Claims (9)

One, and receiving the bridge beam of the other superstructure, respectively, in the lifting of the bridge beam while the other bridge device is installed on the upper surface of the bridge, Preparing a load-sharing support having a groove having a rear portion open so as to pass through the one and the other abutment devices at both sides of the latter; Inserting the grooves of the load-sharing support part through one and the other bridge apparatus, and closely installing the upper surface of the load-sharing support part on the lower surface of the one and the other bridge beams (101); Installing (102) one or more jacks fluidly operated between the lower surface of the load sharing support and the upper surface of the piers; And extending (103) the one and the other bridge beams of the upper structure by simultaneously stretching the jacks (103). delete delete delete In the bridge on which the bridge beam 21 of one side and the other superstructure 2 is supported on both sides of the upper surface of the bridge 1, the other bridge device 22 is provided, Both sides are provided with a groove portion 31 having a rear portion open to allow the one and the other bridge device 22 to be inserted, and a load sharing support portion 3 whose upper surface is in close contact with the lower surface of the one and the other bridge beam 21. Wow, Bridge beam lifting device characterized in that it is composed of one or more jacks (4) mounted on the lower surface of the load-sharing support (3) and the upper surface of the bridge to simultaneously pull up the one, the other bridge beam. delete delete The front and rear support parts 32 and 33 are further provided on the front and rear of the load sharing support part 3 so as to hold the front and rear ends of the one and the other bridge beams 21. , The rear support part 33 mounted to the rear of the load sharing support part 3 is detachably mounted to the rear of the load sharing support part 3 so that the width of the front and rear parts can be adjusted, and is fixed by bolts. Bridge beam raising device. The jack 4 is provided at the corners and middle portions of the load-sharing support of claim 8, wherein the front and rear support racks 32 and 33 provided at the front and rear of the load-sharing support 3 are respectively provided. Bridge beam lifting device, characterized in that the horizontal mounting to be further provided with a plurality of jack mounting plate (321).