KR101214528B1 - A lifting apparatus of upper structure of bridge and lifting method of upper structure of bridge by using - Google Patents

Abstract

PURPOSE: A lifting apparatus for a bridge deck and a lifting method for a bridge deck using the same are provided to efficiently lift up a bridge deck using a lifting unit by coupling a pair of extension plates to a pier. CONSTITUTION: A lifting apparatus for a bridge deck comprises a pair of extension plates, a pair of reinforcement plates, and lifting units. The extension plates are arranged on the top portion(1a) of a pier(1) and have first bridge bearing coupling grooves for surrounding bridge bearings. Thee reinforcement plates are coupled to the tops of the extension plates and cover both surfaces of the extension plates. The lifting unit is installed on the extension plates.

Description

A bridge apparatus for raising a bridge deck and a method of raising a bridge deck using the same {A lifting apparatus of upper structure of bridge and lifting method of upper structure of bridge by using}

The present invention relates to a bridge deck lifting apparatus for raising a bridge deck and a bridge deck lifting method using the same, and more particularly, because the extension plate is coupled to the bridge so as to extend further from the top of the bridge, lifting the support member of the bridge deck It is possible to smoothly raise the bridge top plate through the pulling means by securing the pore distance, and it is composed of the extension plate and the reinforcing plate to overlap the upper part of the pier, so that holes for bolting to the pier are not drilled. It is not necessary to prevent breakage of the piers, and by removing the first coupling means that combines the reinforcing plate and the extension plate after the lifting of the bridge top plate, not only can it be easily demolished after the construction is completed, but also The center of the pulling means is located on the corner of the upper portion of the bridge By reducing the weight and is transmitted to the plate for the extension of upper impression that a stable operation can be achieved impressive bridges pulling apparatus and to a method using the same impression deck.

In general, a bridge is composed of a structure such as a bridge beam and a top plate installed over the upper part of the bridge, the bridge top and the beam of the bridge and beam and the bridge deck to enable the expansion or contraction action according to the elastic stress applied after installation Stationary bridges or vibration-absorbing composite bridge devices are installed between the operation, and such bridges are often damaged by various types of natural or artificial factors as time passes after installation. For example, corrosion of the bridge device due to leakage at the joint portion of the bridge deck, destruction, paralysis of the grease injected into the bridge device, etc. may occur, thereby causing cracks in the bridge piers or cracks in the top plate and beams. do. In addition to the above-mentioned examples, if the pier is settled due to the ground subsidence, the positional change of the top plate, the beam is destroyed by the impact load, and the top plate partially sinks, resulting in a step between the top plates, exceeding the original design load of other bridges. The bridge must be repaired by various types of factors such as the lack of cross section of the bridge system and the need to replace the bridge deck due to the appearance of heavy vehicles.

In repairing a damaged or deformed bridge, the whole or part of the bridge may be demolished and restored according to the degree of damage, or the original structure may be restored by partial repair work. Thus, the whole or part of the bridge structure may be removed. In addition, reconstruction requires a lot of heavy equipment and manpower, which incurs a huge cost of repair work, and also causes traffic to be blocked due to closure or detour of vehicles. There was this.

Therefore, when repairing a bridge, repairing by moving only the part requiring repair without moving or dismantling the bridge top plate or beam structure in the vertical direction or the horizontal direction, and repairing it by lifting the bridge beam or the top plate using a hydraulic jack. This is being used.

In addition, when performing the lifting work of lifting the upper structure of the bridge by the hydraulic device due to the repair and replacement of the bridge device, the podium distance, which is the distance between the bridge device and the end of the bridge to secure the space for jack installation when the bridge device is replaced, and the beam If the hydraulic jack is not installed in the coping section due to a concern such as insufficient space for installation of the hydraulic jack, such as a clamping space, which is the distance from the bottom of the bridge to the top of the bridge, or damage to the coping section of the bridge due to insufficient stress. There are many methods, but the existing methods can damage the structure, incur additional costs other than the purpose of repair and reinforcement, and may cause defects due to damage in terms of long-term bridge structure maintenance and management.

Specifically, the problem of the repairing method using the prefabricated brackets is applicable only when the construction space of at least 8 cm and the pore length of the reinforcing cover is secured at the time of construction, and when the large jacking force is applied, Due to the increase in workability during welding, there is a problem that can not be applied to all bridges because of the limitation of the end distance and the geometry space.

In other words, if you look at the jack installation standards introduced in the road bridge specifications, the podium distance is 35cm when the span length of the beam is less than 10m and 35cm in the span, 40cm should be secured, so the practical application is impossible.

In addition, the problem of the conventional cross-sectional enlargement raising method is uneconomical compared to other methods in the air and construction cost, the aesthetics are not good, there is a problem that damage the existing bridge because the reinforcing bars after using the anchor in the existing bridge.

In order to solve such a problem, Korean Utility Model Registration No. 20-0227911 (Prefabricated Bracket for lifting the upper structure) has been proposed.

The prior art will be described with reference to FIGS. 1 to 2 as follows.

First, the prefabricated bracket 100 is separated into two pairs of dividing members 110, and is configured to be fastened by the variable fastening element 120 which is adjustable in length.

Both split members 110 of the prefabricated bracket 100 are welded to the lower surface of the upper surface plate 111 and the side plate 112 is welded to the outside of the upper plate 111 and the side plate 112, the support portion 101. ) Is formed. The top plate 111 has an interference preventing groove 111a formed therein, and a hydraulic device receiving groove 111b formed in the outer portion. The side plate 112 is welded downward to the connecting portion 111c between the interference preventing groove 111a of the upper plate 111 and the hydraulic device receiving groove 111b.

The support portion 101 is a pair of support plate 113 is welded between the lower surface of the upper surface plate 111 and the outer surface of the side plate 112, the hydraulic device 200 between the two support plate 113. Bracing plate 114 is raised is formed by welding.

In addition, a plurality of reinforcing plates 115 and 116 are welded to the outer side of both support plates 113 and the bottom plate 114 of the side plate 112.

The variable fastening element 120 has a plurality of fixed fastening plate 121 is fixed to the inner end of the two partitioning member 110 on both sides of the interference preventing groove 111a, the fixed fastening plate 121 A plurality of assembling fastening plates 122 are coupled therebetween, and high tension bolts 123 fitted into the plurality of fastening holes 121a and 122a formed to penetrate the fixed fastening plate 121 and the assembling fastening plate 122. It is configured to be fastened with).

Therefore, the above-described prefabricated bracket 1000 for raising the upper structure of the conventional acts to secure a sufficient pore length when pulling up the bridge deck by using the hydraulic device 200 and to be pulled up without damaging the bridge.

However, the prefabricated bracket 1000 for raising the conventional upper structure as described above connects the dividing element 110 because the hydraulic device receiving groove 111b for accommodating the hydraulic device 200 is installed out of the piers. The load is applied to the variable fastening element 120 as it is, there was a risk of breakage.

In particular, the variable fastening element 120 has a structure in which only a part of the dividing element 111 is fastened, so that the failure rate due to the load acting upon the hydraulic device 200 is high, so that the actual application thereof is difficult.

Bridge top plate lifting apparatus of the present invention for solving the problems as described above is disposed on the top of the bridge is installed bridge device is a bridge top plate lifting device for raising any supporting member made of any one of the H beam or girder installed on the lower bridge top plate In the upper part of the bridge is arranged in a more extended form, the overall shape of the first bridge device coupling groove formed in the form of the U-shaped coupling device for coupling in the form of wrapping the bridge device in the direction coupled with the bridge device of the bridge is a pair of U-shaped An extension plate; A pair of reinforcing plates configured to be coupled to an upper side of the pair of extension plates so as to fix the extension plates, and to cover the entire sides of the pair of extension plates; And pulling means installed on the extension plate.

In the present invention, the extension plate and the reinforcing plate are coupled by a first coupling means made of a bolt.

In the present invention, the lower side of the portion extending from the upper portion of the pier of the extension plate is characterized in that the reinforcement portion formed with a plurality of ribs formed in the frame and the frame inside the frame.

In the present invention, the coupling of the reinforcing part is characterized in that the fixed coupling using a second coupling means consisting of a bolt for extension plate or extension plate and reinforcement plate.

Reinforcing plate in the present invention is characterized in that the second centering device coupling groove is formed in the inner center.

In the present invention, the position of the pulling means coupled to the extension plate is characterized in that the center is located at the end edge of the pier top.

 Bridge deck lifting method using the bridge lifting device is a bridge deck lifting method using a bridge deck lifting device for raising the support member made of any one of the H beam or girder disposed on the top of the bridge with the bridge device is installed on the bottom of the bridge deck In the pier, a pair of extension plates constituting the bridge lifting device is disposed on the pier, the locating device coupling groove of the extension plate is arranged to be combined to form a wrap around the pier device installed on the pier, the other side of the pier An extension plate arrangement step of arranging the extension plate to be arranged in a shape that extends further than a width direction of the extension plate; A reinforcing plate arranging step of arranging a pair of reinforcing plates constituting a bridge pulling apparatus above the pair of extension plates; A plate joining step of joining the extension plate and the reinforcing plate using a joining means; A pulling means installation step of fixing and mounting the pulling means constituting the bridge top plate raising device on the extension plate; The pulling step of operating the pulling means to raise the support member made of any one of the H beam or girder installed on the lower bridge top plate.

Reinforcing plate in the present invention is characterized in that the second centering device coupling groove is formed in the inner center.

In the present invention, the reinforcing part is installed to install a reinforcing part having a plurality of ribs formed under the portion extending from the upper part of the bridge of the extension plate constituting the bridge upper plate lifting device after any one of the step of the plate joining step or the pulling means installation step Characterized in that the step further comprises.

In the present invention, the position where the pulling means is installed in the step of installing the lifting means is located in the center of the upper edge portion of the width direction of the upper edge of the pier so that the overload is not formed in the extension plate when the support member is raised through the lifting means It is characterized in that the arrangement.

The present invention is coupled to the pier so that the extension plate extends more than the width of the upper portion of the pier to secure the edge length when the support member of the bridge top plate to raise the bridge top plate smoothly through the pulling means.

In addition, since the extension plate and the reinforcing plate is combined to cover the upper portion of the pier, it is not necessary to drill holes for coupling bolts to the pier, thereby preventing breakage of the pier.

In particular, by removing the first coupling means that is coupled to the reinforcing plate and the extension plate after the lifting of the bridge top plate can be easily demolished even after the construction is completed.

In addition, it is a useful invention that the stable lifting operation can be made by reducing the lower weight transmitted to the extension plate when the bridge upper plate is raised by configuring the center of the lifting means in the upper corner portion of the bridge piers.

1 is a perspective view showing a prefabricated bracket for raising a conventional superstructure.
2 is an assembled perspective view of FIG. 1.
Figure 3 is a perspective view of the bridge deck lifting apparatus according to the present invention.
FIG. 4 is an exploded perspective view of FIG. 3; FIG.
Fig. 5 is a side view of Fig. 3; Fig.
6 is a perspective view showing a reinforcement unit according to the present invention.
7 to 11 is a state diagram showing the construction method of the bridge deck lifting apparatus of the present invention.
12 is a state diagram showing a pulling process of the support member by using the pulling means.

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

The present invention is an H beam installed in the lower portion of the bridge top plate (not shown in the figure) supported by the bridge device (E) installed in the bridge (1) and the upper portion (1a) of the bridge as shown in Figs. Or it is an apparatus for raising the support member 2a which consists of a girder.

Looking at this in detail, first, as shown in Figure 4, the extension plate 10 is disposed on the upper portion (1a) of the aforementioned piers (1).

This, the extension plate 10 is formed so that the first bridge device coupling groove 11 is formed on one side so as not to interfere with the bridge device (E) installed in the bridge (1) so that the overall shape is made of a c-shape. It is composed.

In particular, the extension plate 10 is arranged in a form in which one side is extended more than the length of the width direction of the piers 1 when shown from the side as shown in Figure 5, such, the extension plate 10 ) Will be arranged in a pair to make contact with each other.

Next, the reinforcing plate 20 is configured to be coupled to the upper portion of the extension plate 10 to fix the extension plate 10.

Such a reinforcing plate 20 may be formed to a length sufficient to cover the entire pair of extension plates 10 so as to sufficiently support the extension plate 10.

In particular, the reinforcing plate 20 is formed to be wider than the first bridge device coupling groove 11 formed in the extension plate 10, in order to prevent interference with the bridge device (E) formed in the bridge (1) The second center device coupling groove 21 is formed in the inner center structure.

Next, since the pulling means 30 is generally made of a general configuration that can raise the support member 2a of the bridge top plate by hydraulic pressure, a detailed configuration will be omitted.

However, the pulling means 30 is fixed to the upper portion of the extension plate 10 so that the excessive load on the extension plate 10 when lifting the support member (2a), so as not to act on the corner of the pier (1) It is good to arrange so that the center of the pulling means 30 is located.

Meanwhile, in the present invention, the reinforcing part 40 capable of supporting a portion extending out of the upper portion 1a of the piers 1 of the extension plate 10 may be further configured.

The reinforcement portion 40 is configured to be coupled to the lower side of the extension plate 10.

As shown in FIG. 6, the reinforcement part 40 is composed of an L-shaped frame 41 and a plurality of ribs 42 formed in the frame 41.

Therefore, the upper portion of the frame 41 formed in the reinforcing portion 40 is in contact with the lower portion of the extension plate 10, the side of the frame 41 is disposed to be in contact with the side of the piers (1).

Such, the reinforcing portion 40 is configured to couple to the extension plate 10 or the extension plate 10 and the reinforcement plate 20 through the second coupling means (J2) made of bolts, piers (1) It is made of a structure that can prevent the side damage.

At this time, the extension plate 10 and the reinforcing plate 20 may be further formed with a second fastening hole (h2) each formed with a screw thread.

In particular, the second coupling means (J2) is preferably coupled at the same time so as to connect the end portion of the extension plate 10 and the reinforcing plate 20.

Looking at the bridge top plate lifting method using the bridge top plate lifting apparatus of the present invention having the above configuration as follows.

The present invention is a bridge upper plate lifting device for raising the support member (2a) made of any one of the H beam or girder disposed on the upper portion (1a) of the bridge (1) on which the bridge device (E) is installed and is installed under the bridge top plate. Using 50 will raise the bridge deck.

Therefore, the present invention should be preceded by the work of installing the bridge deck lifting device 50 on the upper portion 1a of the bridge 1.

Looking at this, as shown in Figs. 7 to 12, first, a pair of extension plates 10 constituting the bridge upper plate lifting device 50 is disposed on the upper portion 1a of the bridge 1. )

In the step of arranging the extension plate, the first bridge device coupling groove 11 formed in the extension plate 10 is disposed in the direction in which the bridge device E is installed on the bridge 1, and then the bridge bridge. The extension plate 10 is arrange | positioned at the upper part 1a of (1).

In particular, the pair of extension plate 10 is composed of a pair, after placing any one extension plate 10 on the pier (1) upper portion (1a), the other extension plate 10 It arrange | positions in the same way in the opposite direction of the extension plate 10 arrange | positioned initially.

At this time, the pair of extension plate 10 is arranged so that the end of the direction in which the first coupling device coupling groove 11 is formed to abut each other.

Then, one side of the extension plate 10 is formed longer than the width of the pier 1 is arranged in a portion extending from the upper portion (1a) of the pier (1).

Next, the reinforcing plate 20 is disposed above the extension plate 10 disposed on the upper portion 1a of the piers 1 as described above.

The reinforcing plate 20 is formed to have a length such that the overall length of the reinforcing plate 20 covers the side surfaces of the pair of extension plates 10.

Therefore, the pair of reinforcing plates 20 are disposed on both side surfaces of the extension plate 10, respectively.

Thereafter, the extension plate 10 and the reinforcement plate 20 are fixed to each other by using the first coupling means J1 made of bolts.

In the plate coupling step, one or more first fastening holes h1 having a screw thread are formed in the extension plate 10 and the reinforcing plate 20 to be fastened by using the first coupling means J1.

That is, in the present invention, only the extension plate 10 and the reinforcement plate 20 are combined to prevent breakage of the pier 1 when the bridge top plate including the supporting member 2a is raised. Construction is to be made in the form of an overlay on the upper (1a).

Then, the pulling means 30 is fixedly coupled to the extension plate 10. (Impression means installation step)

Here, the pulling means 30 is not arranged at the end of the extension plate 10, the installation means 30 is installed so that the center of the lifting means 30 can be located at the corner of the bridge (1). When operating to raise the support member (2a) of the bridge top plate to prevent excessive load on the extension plate (10).

On the other hand, in the present invention, the reinforcement unit installation step may be further included in construction. In this case, the reinforcement unit installation step may be performed after the plate coupling step or the pulling means installation step.

The reinforcing part installation step is to reinforce the extended portion deviating from the upper portion (1a) of the pier 1 of the extension plate 10, the extension plate 10 or the extension plate 10 and the reinforcement plate. A second fastening hole (h2) is formed in (20) to be coupled.

After the installation of the bridge top plate lifting device 50 is completed as described above, the lifting means 30 is operated to raise the bridge top plate including the supporting member 2a of the bridge top plate (the raising step), and then complete a predetermined work. You can do it.

In particular, the present invention by configuring the reinforcing plate 20 that can cover the entire both sides of the extension plate 10 as described above, by using the lifting means 30 to lower the weight generated during the lifting of the bridge top plate It will work to support enough.

In addition, the position of the pulling means 30 is half over the upper portion (1a) of the pier (1), and the other half over the extended portion of the extension plate 10, thereby the In operation, the lower weight applied to the extension plate 10 is reduced to work more stably.

On the other hand, the present invention after the completion of the predetermined work through the bridge upper plate lifting device 50, the lifting by releasing the engagement of the first coupling means (J1) coupled to the extension plate 10 and the reinforcing plate 20 After the operation, the bridge deck raising device 50 can be easily dismantled.

Although the above-described embodiment has been described with respect to the preferred embodiment of the present invention, the present invention is not limited to this and can be modified in various forms within the scope without departing from the technical spirit of the present invention belongs to It should be obvious to those skilled in the art.

E: Chair Unit
1: Pier 1a: Upper part
2: bridge top plate 2a: support member
10: plate for extension
11: first coupling device coupling groove
20: reinforcing plate
21: second teaching device coupling groove
30: raising means
40: reinforcement
41: Frame 42: Rib
50: bridge deck lifting device

Claims (10)

In the bridge upper plate raising apparatus for raising the support member 2a which consists of the H beam or the girder which is arrange | positioned at the upper part 1a of the bridge | bristle bridge 1 in which the bridge | seat device E was installed, and is installed in the lower part of a bridge top plate,
The first bridge device coupling is arranged in a form extending further from the upper portion (1a) of the bridge (1), coupled in the form of wrapping the bridge device (E) in the direction coupled to the bridge device (E) of the bridge (1) A pair of extension plates 10 having an overall shape in which grooves 11 are formed in a U shape;
A pair of reinforcing plates are configured to be coupled to the pair of extension plates 10 above to fix the extension plate 10, and to cover the entire side surfaces of the pair of extension plates 10. 20;
Lifting device 30, characterized in that consisting of; the lifting means (30) installed on the extension plate (10).
The bridge top plate lifting apparatus according to claim 1, wherein the extension plate (10) and the reinforcement plate (20) are coupled by first coupling means (J1) made of bolts.
According to claim 1, wherein the lower portion of the extension plate 10 extending from the upper portion (1a) of the pier (1) of the L-shaped frame 41 and a plurality of ribs 42 inside the frame (41) Bridge top plate lifting device characterized in that the reinforcement portion 40 is formed.
The method of claim 3, wherein the reinforcing portion 40 is coupled to the fixing plate 10 or using the second coupling means (J2) made of bolts to the extension plate 10 and the reinforcing plate 20. Bridge top lifting device characterized by combining.
The bridge top plate raising apparatus according to claim 1, wherein the reinforcing plate (20) is provided with a second bridge device coupling groove (21) formed at an inner center thereof.
The bridge top plate according to claim 1, wherein the position of the pulling means (30) coupled to the extension plate (10) is disposed so that the center is located at the end edge of the width of the upper portion (1a) of the bridge (1). Impression device.
In the bridge top plate lifting method using a bridge top plate lifting device for raising the support member made of any one of the H beam or girder disposed on the top of the bridge is installed on the top of the bridge is installed,
Arrange a pair of extension plates constituting the bridge lifting device on the upper part of the bridge, so that the coupling device coupling groove of the extension plate can be combined to surround the bridge device installed in the bridge, the other side in the width direction of the top of the bridge An extension plate arrangement step of arranging to be arranged in an extended form;
A reinforcing plate arrangement step of arranging a pair of reinforcing plates constituting a bridge pulling apparatus on the upper side of the pair of extension plates;
A plate joining step of joining the extension plate and the reinforcing plate using a joining means;
A pulling means installation step of fixing and mounting the pulling means constituting the bridge top plate raising device on the extension plate;
Lifting step of raising the support member made of any one of the H beam or girder installed on the lower portion of the bridge top plate by operating the lifting means; Bridge top plate lifting method characterized in that consisting of.
8. The method of claim 7, wherein the reinforcing plate has a second bridge device engaging groove formed at an inner center thereof.
8. The reinforcing part having a plurality of ribs formed on a lower side of a portion extending from an upper part of a pier of the extension plate constituting the bridge upper plate lifting device after any one of the plate joining step or the pulling means installation step. Bridge top plate lifting method using a bridge top plate lifting device characterized in that the reinforcement portion installation step further comprises.
According to claim 7, wherein the position in which the lifting means is installed in the step of installing the lifting means is the lifting means in the end edge portion of the width direction of the upper portion of the piers so that the overload is not formed when the support member is raised through the lifting means Raising method using the bridge deck lifting device characterized in that the center of the position is located.

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