KR100687136B1 - Main carrier for constructing upper structure of bridge - Google Patents

Abstract

The present invention by installing a crane on the upper part of the main tool (주) to allow the driver to visually check the lifting and transportation process such as formwork and reinforcing bars, the risk of safety accidents are eliminated and the upper part of the bridge can work smoothly The purpose is to provide a main bogie for structural construction.

To this end, the main bogie 100 for construction of the upper structure of the bridge according to the present invention, which is slidably placed two by one on a pair of rails 1 arranged on both sides of the upper part of the main tool, spaced apart from each other, The drive motor 103 which is installed at the lower side of the main support base 101 and 102 and the main support base 101 and 102 provided with the sliding roller to rotate the sliding roller to move the main support base 101 and 102 back and forth. And a pair of pedestals 104 and 105 for connecting the upper portions of the two main supports 101 and 102 spaced apart from each other on the same rail 1 and supporting the upper structure, and two pedestals 104 and 105. It is characterized in that it comprises a main truss 106 is installed horizontally on the top to support the crane (200).

Main support, drive motor, pedestal, crane, main truss

Description

Main carrier for constructing upper structure of bridge}

1 is a process diagram schematically showing a process of constructing a superstructure of a bridge according to the prior art.

Figure 2 is a side view showing the main bogie for the superstructure construction of the bridge according to an embodiment of the present invention.

Figure 3 is a front view showing the main bogie shown in FIG.

4 is a plan view of FIG.

5 is a side view of the flat work machine shown in FIGS. 2 and 3.

6 is a plan view of the compaction roller and the screw shown in FIG.

7 is a process diagram schematically illustrating a process of constructing an upper structure using the main bogie for the upper structure construction of a bridge according to an embodiment of the present invention.

<Description of Major Symbols in Drawing>

100: main truck 101, 102: main support

103: drive motor 104, 105: pedestal

106: main truss 107: roller portion

110: flat machine 111: deck frame

112: guide rail 113: sliding body

114: drum

The present invention relates to a construction apparatus used to construct a superstructure of a bridge, and more particularly, by installing a crane on the upper part of the main tool, the driver visually takes the impression, transportation and installation process of formwork and rebar, etc. It relates to the main bogie for the superstructure of bridges to be identified.

In general, bridges are expensive structures that allow them to cross over rivers, lakes, straits, bays, canals, basins, or other traffic routes or structures, and are divided into substructures and superstructures.

The undercarriage is composed of shifts and bridges that safely transfer the loads acting on the superstructure to the ground, which means the bearings at the beginning and end of the bridge and the bridges are intermediate bearings located between the shifts. .

The upper structure is composed of a slab and a support that is installed on the lower structure, the slab refers to the bottom plate to allow the vehicle, etc. to be carried on the upper side, the packaging for the vehicle to carry and install a railing or a central separator, etc. In addition to supporting the slab load, it is also a part of determining the type of bridge.

The most common type of bridge is the Girder Bridge, which installs P.S.C Beam, Steel Box, and Plate between the bridge and the bridge, and between the bridge and the bridge.

1 shows a process of constructing an upper structure of a girder bridge, which is a type most commonly used in a bridge.

First, when the installation of substructures such as shifts and piers is completed, a plurality of PSC beams are arranged at regular intervals on the upper portion of the substructure to form a main tool, and a fall prevention and fall prevention bat is installed.

And, install the workbench for installing the cross beams between the PSC beams, raise the cross beams with cranes on the ground, and then assemble them between the PSC beams, raise the wooden or steel formwork with the cranes on the ground, and then assemble them. On the outside of the crossbeams.

At this time, in the case of wooden formwork, a large number is raised at a time and loaded on the upper part of the PSC beam, and the worker transports and installs it directly as necessary. It will be carried directly to the location.

As such, when the formwork of the crossbeam is completed, the crossbeam reinforcing bars and formwork are detected correctly, and if the installation state is poor, the rearrangement is performed, and if the installation state is good, the concrete is poured between the formwork and cured.

When the curing of concrete is completed, the worker is dismantled and transported in the case of wooden formwork, and in the case of steel formwork, it is dismantled using a crane.

When the installation of the cross beam is completed, using the crane on the ground raises the slab formwork and transported to an appropriate position to install, and then raise the cantilever formwork (Cantilever) formwork and transported to an appropriate position.

Then, using the crane on the ground to raise the ready reinforcement and then transport and arrange, then raise the main reinforcement, then transport and arrange and bind, to raise and assemble the reinforcing bar to build a protective wall.

As such, when the rebar arrangement for concrete placement is completed, the rebars are detected correctly and if they are defective, they are arranged again correctly. In addition, a concrete finisher rail is installed for leveling after the concrete is poured, and a flatness machine is installed thereon.

When the preparation for concrete pouring is completed through the above-described process, the concrete is poured by curing, after dismantling the formwork, paving the asphalt on the upper surface of the concrete and installing the joints, all the construction of the superstructure is completed.

However, in the construction process of constructing the upper structure of the bridge through the above-described process, since the formwork and reinforcing bars need to be raised using a crane installed on the ground, the crane driver cannot accurately check the lifting process with the naked eye. The correct communication should be made between the worker and the worker who orders the work on the PSC beam. If such communication is not done properly, there is a risk that safety accidents may occur and work may not be performed smoothly.

Accordingly, the present invention has been made in order to solve the conventional problems as described above, by installing a crane on the upper portion of the main tool (構) by allowing the driver to visually check the lifting and conveying process such as formwork and rebar, The purpose is to provide a main bogie for the superstructure construction of bridges that can eliminate the safety accidents and smoothly work.

In addition, the present invention has a purpose of providing a main bogie for the construction of the upper structure of the bridge by having a flat work machine for leveling concrete, which does not require a separate flat work machine for compacting concrete.

In order to achieve the object as described above, the main bogie for constructing the superstructure of the bridge according to the present invention, which is slidably placed two by one on a pair of rails arranged on both sides of the upper part of the main tool, spaced apart from each other, A main support provided with a sliding roller in the main support, a first drive motor installed at a lower part of the main support to rotate the sliding roller forward and backward, and an upper portion of the two main supports spaced apart from each other on the same rail. Technical features include a pair of pedestals supporting the structure, and a main truss horizontally installed on top of the two pedestals to support the crane.

In the above-described configuration, the main trolley further includes a flat work machine installed on two pedestals to compact the poured concrete and plaster the surface thereof.

In the above-described configuration, the flat work machine includes a deck frame horizontally installed on the upper portions of the two pedestals, a sliding body sliding along a guide rail formed long inside the lower part of the deck frame, and a fastening means at the bottom of the sliding body. It comprises a drum detachably mounted.

In the above-described configuration, the drum is a gear unit in which the gear unit is detachably mounted to the lower part of the sliding body by means of fastening means and has gears for transmitting the driving force of the second driving motor and the second driving motor therein; A pair of compaction rollers that are rotatably installed on the lower side to receive and drive the driving force of the second drive motor, and to compact and plaster the surface of the concrete, and a pair of shafts coupled to the compaction rollers to select the surface of the concrete before compacting with the compaction rollers. It consists of a screw.

Hereinafter, the characteristics and the operation of the above-described configuration through the preferred embodiment of the main bogie for construction of the upper structure of the bridge according to the present invention will be described in more detail.

As shown in Figures 2 to 4, the main bogie 100 for construction of the superstructure of the bridge according to an embodiment of the present invention, as long as it is arranged on both sides of the upper side of the main tool made of a plurality of PSC beams Two pairs of main supports (101) and (102) are spaced apart from each other and are installed on the pair of rails (1) and are spaced apart from each other, and are installed below the main supports (101) and (102). ) And a pair of pedestals 104 and 105 connecting the upper portions of the two main supporters 101 and 102 spaced apart on the same rail 1, The main truss 106 is installed horizontally on the top of the pedestal (104) 105 to support the crane 200, and the flatness is installed on the two pedestal (104) 105 to compact the poured concrete and plaster the surface thereof It comprises a working machine 110.

At this time, the four main support (101, 102) is made to be adjustable height, the lower portion of the roller unit 107 is provided with two sliding rollers 108 that are slid along the rail (1) Are installed respectively.

In addition, a driving motor 103 for rotating the sliding roller 108 is mounted on top of the four roller parts 107, respectively, and the driving motor 103 is equipped with a driving sprocket (not shown) and a sliding roller ( A rotating sprocket (not shown) is mounted to the rotating shaft of 108 and the driving sprocket and the driven sprocket are connected by a chain (not shown). Therefore, the driving force of the drive motor 103 is transmitted to the driven sprocket through the chain, so that the sliding roller 108 is rotated.

As shown in FIGS. 2 to 6, the flat work machine 110 described above has a deck frame 111 horizontally installed on an upper portion of the pedestal 104 and 105 and a length inside the lower portion of the deck frame 111. It includes a sliding body 113 which slides along the guide rail 112 formed, and a drum 114 detachably mounted by a fastening means in the lower portion of the sliding body 113.

Here, the guide rail 112 is fixed to the support panel 115 mounted on the lower side of the deck frame 111 to be adjustable in height, the support panel 115 is the height is lowered by the height adjustment bolt 116. Adjusted.

In addition, sliding rollers 113a sliding along the guide rails 112 are mounted on both upper sides of the sliding body 113.

On the other hand, the drum 114 is detachably mounted to the lower portion of the sliding body 113 by a fastening means such as a bolt, and the drive motor (not shown) and the gears (not shown) for transmitting the driving force of the drive motor therein A built-in gear unit 114a and a pair of compaction rollers 114b rotatably installed in the lower portion of the gear unit 114a and rotated in opposite directions to compact and plaster the surface of the concrete, and the compaction roller 114b. It is composed of a pair of screws (114c) to pick the surface of the concrete before being axially coupled to the compaction roller (114b).

At this time, the gear of the gear unit 114a and the compaction roller 114b are connected via a chain, so that the driving force of the driving motor is transmitted to the compaction roller 114b to rotate the compaction roller 114b.

In addition, a cover 114d is mounted on the side of the gear unit 114a to cover the upper portion of the screw 114c and prevent the concrete, sand, gravel, and the like from splashing when the surface of the concrete is selected by the screw 114c.

Hereinafter, a process of constructing the upper structure of the bridge using the main bogie for constructing the upper structure of the bridge according to the embodiment of the present invention configured as described above will be described in detail with reference to FIG. 7.

First, when the installation of substructures such as shifts and piers is completed, a plurality of PSC beams are arranged at regular intervals on the upper portion of the substructure using cranes installed on the ground to form a main sphere, falling objects and falling Preventive bats will be installed.

Then, rails 1 for sliding the main trolley 100 are respectively provided on both upper sides of the main tool, which are supported by a plurality of rail supports.

Thus, when the installation of the rail 1 is completed, the main trolley | bogie 100 is raised using the crane of the ground, and is attached to the rail 1.

At this time, the main trolley 1 may be pulled up after assembling from the ground, or may be assembled in the upper part of the main tool after pulling up in a separated state.

Then, after carrying the horizontal beam work platform and reinforcing bar raised to the crane 200 of the main bogie 100, installed and assembled, and conveys the formwork made of wood or steel raised by the crane 200 of the main bogie 100. After installation, install it on the outside of the cross beams.

At this time, in the case of the wooden formwork, because the weight is light, the worker is installed directly, but in the case of steel formwork, because the load is much outgoing is installed using the crane 200 of the main bogie 100.

As such, when the installation of the cross beams and formwork is completed, check whether the reinforcing bars and formwork are installed correctly through the inspection, and if they are not installed correctly, correct the installation state and, if properly installed, pour concrete between the formwork to cure them. And, if curing is completed, the worker directly dismantles and transports the wooden formwork, and in the case of steel formwork, the crane is dismantled and then transported.

When the installation of the cross beam is completed, using the crane 200 of the main bogie 100 raises the slab formwork and transports it to an appropriate position to install it, and then raises the cantilever formwork and transports it to an appropriate position Done.

Then, after transporting and arranging the prepared rebars raised by the crane 200 of the main trolley 100, and then carrying and arranging and binding the main reinforcing bars, the reinforcing bars for constructing the protective wall are transported and assembled.

As described above, when the reinforcing bar arrangement for concrete placing is completed, it is detected whether the reinforcing bars are arranged correctly, and if there is a defect, the arranging again.

Then, the drum 114 of the flat work machine 110 for compacting and plastering the pour surface of the concrete is mounted on the sliding body 113 installed on the main trolley 100.

When the preparation for concrete pouring is completed through the above-described process, the concrete is poured into slabs and cantilevers to cure, then the concrete is poured into the protective wall to cure. If you install, the construction of the superstructure is all completed.

As described above with reference to the accompanying drawings, the main bogie for the upper structure construction of the bridge according to a preferred embodiment of the present invention, the present invention is not limited to the embodiments and drawings described in detail herein, the description of the invention Various modifications can be made within the spirit and scope.

According to the main bogie for construction of the superstructure of the bridge structure of the present invention configured as described above, by installing a crane on the upper portion of the undercarriage to allow the driver to visually check the lifting and conveying process such as formwork and reinforcing bars, there is a fear of safety accidents Not only can it be solved, but the work can be smoothed and work efficiency can be improved.

In addition, the present invention is provided with a flat trolley for selecting concrete, the main bogie, there is no need for a separate flat working machine.

Claims (4)

The main support is installed in the pair of rails arranged on both sides of the upper side of the main slidable two slidingly spaced apart from each other and provided with a sliding roller at the bottom, installed in the lower portion of the main support to rotate the sliding roller A first drive motor for advancing and retracting the main support, a pair of pedestals connecting the upper portions of the two main support spaced apart on the same rail and supporting the upper structure, horizontally installed on the two pedestals to support the crane In the main bogie for constructing the superstructure of the bridge comprising a main truss, and a flat work machine installed on the two pedestal to compact the pour concrete and plaster the surface thereof, The flat work machine, A deck frame installed horizontally on top of the two pedestals; A sliding body sliding along a guide rail elongated in the lower side of the deck frame; And The main bogie for construction of a superstructure of a bridge comprising a drum detachably mounted by a fastening means to a lower portion of the sliding body. delete delete The method of claim 1, The drum, A gear unit detachably mounted to a lower portion of the sliding body by a fastening means and having gears configured to transmit a driving force of a second driving motor and a second driving motor therein; A pair of compaction rollers rotatably installed at a lower portion of the gear unit to rotate and receive a driving force of the second driving motor to compact and plaster the surface of concrete; And The main bogie for constructing the superstructure of a bridge comprising a pair of screws that are axially coupled to the compaction roller and select the surface of the concrete before compaction with the compaction roller.

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