KR100665680B1 - Bridge construction method by incremental launching of long span superstructure - Google Patents

Abstract

A bridge construction method using an incremental launching method is provided to shorten a period of temporary construction for a bridge and to manufacture and construct under thorough quality control by manufacturing and installing an upper structure of a bridge by incremental launching and extruding the completed upper structure of a bridge integrally and to install a bridge quickly and economically by completing an upper structure of a bridge on a temporary support structure installed in a land section, and extruding and supporting in a water section. A bridge construction method using an incremental launching method comprises the steps of installing temporary support structures(100) provided with a temporary bent(110) at regular intervals between piers(610,620) as a lower structure of a bridge and installing a passage(111) with a rail on the temporary bent to make an arch bridge slid and extruded, assembling and installing an arch bridge(310) on the passage of the temporary bent directly, installing an upper structure(300) of the arch bridge to be supported to a roller on the passage and connecting an extruder device having a wire and a winch to the upper structure of a bridge, placing a water locomotive device(500) having a barge(520) fixed with a temporary support structure to support the front of the extruded upper structure of a bridge on the water, making the upper structure of the bridge across a water channel using the water locomotive device by operating the extruder device, and setting the upper structure of the bridge on the pre-installed lower structure of the bridge.

Description

Bridge construction method through batch extrusion hypothesis {BRIDGE CONSTRUCTION METHOD BY INCREMENTAL LAUNCHING OF LONG SPAN SUPERSTRUCTURE}

1 illustrates a bridge deck structure installation method using a conventional barge.

Figures 2a, 2b, 2c and 2d shows the bridge construction method through a batch extrusion hypothesis of the present invention in the order of the process.

Figure 3 shows a bridge installation state diagram according to the present invention.

Figure 4 shows a state in which the pulling means of the present invention is installed.

<Description of the symbols for the main parts of the drawings>

100: temporary support structure 110: temporary vent

111: rail (rail) 120: file

130: highway 200: moving means (roller)

300: bridge deck structure 310: arch bridge

311: reinforcement girder 312: temporary support vent

313: arch member 314: vertical tilt support member

400: extrusion means 410: winch

420: wire rope 500: water transport

510: temporary support structure installed on the barge

520: pants line 530: auxiliary connecting means

600: Bridge substructure 610, 620: Pier

630: bridge bearing 700: extrusion aid

800: raise means

The present invention relates to a bridge construction method through a batch extrusion hypothesis. More specifically, a bridge construction method through a single extrusion hypothesis that extrudes the bridge upper structure as a long bridge arch bridge directly assembled on a temporary vent in the direction of the shallow depth, the water section is supported by a barge.

Conventional arch bridges (ARCH BRIDGE) has been widely used in the bridge installation method that crosses the canyon or waterway because of the beautiful appearance and the advantage that can be installed collectively the bridge deck structure between the jijangji.

That is, it is common to construct the arch bridge in advance by assembling and completing it on the ground around the site, and then construct it by directly placing it between shifts and shifts with a large-capacity crane, and in particular, in a river (sea, etc.) crossing section, it is usually floating on a barge Lifting the arch bridge with a crane (F / C) is used to settle between shifts and shifts directly in the water.

However, if the depth of the river is shallow, additional construction costs such as the need to dredge the river for access, transportation, and installation of the construction site cannot be maintained due to the weight of the barge including the weight of the arch bridge. There was a problem that it could be a cause that is required more than cost.

In addition, after installing a temporary vent (10) to the barge as shown in Figure 1, the bridge top structure 20, such as an arch bridge on the top of the temporary vent 10, the barge 30 to the pier 40 and the pier (40) It is also used to transport by using a tugboat, and to install the bridge deck structure as it is using the water tide of the sea and the water ballast of the barge 30.The method of not using equipment such as floating crane is also introduced. However, this too, there was a limit that can not be applied when the required depth when carrying the barge 30 is not secured.

The present invention is to solve the problems of the prior art,

An object of the present invention is to install a bridge deck structure that is installed across a river or a waterway including a shallow sea, even if it is difficult to secure a site for securing the production site of the bridge deck structure while minimizing dredging work such as a waterway. It is to provide a bridge construction method that can be extruded and installed collectively the bridge deck structure between the jijangji more economically and efficiently.

The present invention to achieve the above technical problem is

First, install the temporary bridge substructure in the land section, while the upper structure can be manufactured and installed without securing the site near the site, and the bridge upper structure can be extruded forward. To be completed.

As a result, the temporary bridge substructure has a function to extrude the manufactured bridge deck structure while having a bridge upper structure fabrication site function.

In addition, the upper part of the temporary bridge lower structure for the extrusion of the bridge deck structure is provided with a moving path including a rail, the moving means including a roller installed on the lower surface of the bridge top structure can be extruded forward along the moving path.

In addition, the extrusion was to use a wire rope connected to the lower surface of the bridge deck structure and a winch connected to the wire rope.

Second, in order to support the bridge upper structure where the tip is extruded into the water section, a temporary bridge substructure is also installed on the barge to support the extruded tip, and the barge crosses the waterway by the extrusion means. Continuous extrusion of the bridge deck structure into the furnace was enabled.

As a result, when the barge approaches the final bridge deck structure installation position, the extruded bridge deck structure can be seated on the pier as it is, using a pulling means including a hydraulic jack installed on the upper surface of the bridge.

Third, wire ropes and winches are also installed on the bridge superstructures pre-installed across the channel to facilitate the extrusion of the barge, and the positions of the extruded bridge deck structures to be seated on the final piers. It was set correctly.

Hereinafter, in order to more clearly and easily describe the bridge construction method through a batch extrusion hypothesis according to the present invention will be described in detail by the accompanying drawings, the best embodiment of the present invention, embodiments according to the present invention As it can be modified in other forms, the scope of the present invention is not limited to the embodiments described below.

The bridge construction method is as shown in Figure 3,

In the method of collectively installing the completed bridge upper structure 300 to cross the waterway (A),

In the land section (B), the temporary support structure 100 is installed on the upper portion of the moving path 110 including the rail (s1),

The bridge upper structure 300 is installed to be supported by the moving means 200 including the roller mounted on the moving path 110, and the extrusion means 400 including the wire 410 and the winch 420 is attached to the upper portion of the bridge. Connected to the structure 300 (s2),

Arrange the water moving means 500 including a barge on which the temporary support structure 510 is installed to support the front end of the bridge upper structure 300 to be extruded (s3),

After operating the extruding means 400 to allow the bridge upper structure 300, whose tip is supported by the water moving means 500, to cross the waterway A, the bridge upper structure 600 300 will be seated (s4).

First, the present invention is applied to a method of collectively installing the completed bridge upper structure 300 crossing the waterway (B).

That is, as shown in FIG. 3 and FIG. 2A, the channel B may be a river or an ocean, and the bridge upper structure 300 will be described based on the long bridge arch bridge 310.

At this time, both ends of the arch bridge 310 to be supported by the bridge support 630, the bridges 610 and 620 as the lower bridge structure 600 is to be constructed in both of the channel (A). Thus, the final arch bridge 310 is installed so that both ends are supported between the pier 610 and the pier 620.

FIG. 2A illustrates a state in which the temporary supporting structure 100 is installed in a state in which the piers 610 and 620 are installed on both sides of the water channel, and finally, the arch bridge is extruded from the left piers 610 and passes through the water section to the right piers 620. Work is carried out so that it can be settled.

That is, in order to extrude the arch bridge 310, the step of installing the means capable of extruding the produced arch bridge, while having the production facility to manufacture the arch bridge is the step s1 of the present invention.

To this end, the present invention is installed a plurality of spaced apart between the temporary support structure 100 between the left pier 610, the temporary support structure 100 uses a temporary tent 110.

The temporary vent 110 is a tower-shaped temporary structure manufactured by assembling an H-shaped steel frame and manufactured in consideration of the height of the piers 610. If the ground supporting the temporary vent is a soft ground, Drive the pile 120 to the ground to secure the necessary support, and build a cattle road 130 around the temporary vents for the site for the production of additional bridge girders (PC box girder) installed between the piers and piers It can also be secured.

Such temporary vents may be spaced apart not only in the longitudinal direction but also in the transverse direction as shown in FIG.

In other words, the temporary vent is to determine the installation position and the number to support the lower portion of the arch bridge. Only a predetermined number should be constructed in the longitudinal direction to support at least the arch bridge electric field, so that the arch bridge can be assembled and completed on the temporary vent.

On the upper surface of the temporary vent 310, a moving path 110 including a rail 111 is installed so that the arch bridge 300 can be slid and extruded, so that the arch bridge 300 can be installed to extend in the longitudinal direction. The rail may use a conventional steel rail, and a support member may be used to stably support the upper surface of the temporary vent.

Next, as shown in FIG. 2B, the step of allowing the arch bridge 310 to be manufactured and installed on the rail 111 is s2.

The arch bridge may be manufactured at the livestock road 130, which is the site around the pier 610 or the temporary vent 310, and installed on the upper part of the temporary vent, but in this case, it is inefficient because it requires construction for the site securing and the production site. .

Accordingly, in the present invention, the arch bridge 310 is directly assembled and installed in the movement path 110 of the temporary vent 310, and each member or segment constituting the arch bridge is manufactured in a factory in advance and transported to the site, and then the temporary vent (310) to be assembled on.

That is, the arch bridge segment member made in advance in the factory to be assembled directly installed on the temporary support structure.

For example, first, the reinforcement girder 311 constituting the lower portion of the arch bridge is installed on the temporary vent, the lower surface is attached to the moving means 200 which is a roller to slide on the rail 111.

These rollers may be installed on both bottom surfaces of the reinforcement girder, or may be spaced apart from the entire bottom surface of the reinforcement girder.

The members constituting the arch bridge to the reinforcement girder 311 is finally assembled using welding or anchor bolts. Specifically, the temporary support vent 312 is installed in the reinforcement girder, and the bow-shaped arch member 313 is assembled and installed using the temporary support vent, and then the vertical tilt support member 314 is disposed between the arch member and the reinforcement girder. The final arch bridge is completed by installing.

The completed arch bridge 310 is provided with an extrusion means 400 to be extruded forward on the rail 111, the extrusion means 400 may be composed of a wire rope 410 and the winch 420.

One end of the wire rope 410 is connected to the roller installed on the arch bridge 310 and the other end is connected to the winch 420 installed on the bridge 610, which is the bridge substructure, thereby eventually operating the winch 420 to arch bridge 310 ) Can be extruded while sliding forward.

At this time, a simple and economical wire rope 410 and winch 420 were used as the extrusion means 400. However, in some cases, an extrusion means for bridges such as a hydraulic jack may be used. If it is to exert a force that can be extruded, the installation position and number is not limited otherwise.

Extruding the arch bridge in this way, the arch bridge's tip will continue to the water section (B), and if the arch bridge does not support the tip of the arch bridge 310 in this water section, the arch bridge will be conducted to the water, so Means are needed to support the arch bridge.

Accordingly, in the present invention as shown in FIG. 2C, the water moving unit 500, which is a barge 520 in which a temporary support structure 510 such as a temporary vent 511 is pre-installed, is used as such means.

That is, when the temporary vent 511 is manufactured and installed in the barge 520 to form a predetermined height, the tip of the arch bridge to be extruded may be supported.

Since the arch bridge 310 is supported by a temporary vent 511 of the barge and the rear of the arch bridge is supported by a temporary vent 110 installed in the land section, the weight of the arch bridge is distributed to support the barge. Compared with the prior art, it is considerably reduced, and thus, even if the water depth of the waterway is shallow, even if only a part of the dredging is possible to operate the barge, in particular, the present invention has the advantage that it is very useful in the way to cross the waterway shallow.

At this time, the barge on which the temporary vent is installed is transported in the water section in advance when the arch bridge is extruded while the fabrication is completed in advance.

The arch bridge 310 supported by the barge is preferably provided with an auxiliary connecting means 530 including a wire bracing material which is inclined to the barge or the temporary vent and connected to the arch bridge so as to be stably supported while crossing the waterway. This ensures that the end of the arch bridge can be stably supported on the barge.

The arch bridge with the tip supported by the water moving means will continue to be extruded forward by the extrusion means of the land section, this extrusion is continued until the bridge 620 installed in the land section across the arch bridge as shown in Figure 2d.

At this time, the pier has an extrusion aid including a wire rope 710 and a winch 720 connected to the front end of the bridge upper structure to provide the final installation position setting and extrusion assistance of the extruded bridge upper structure ( 700 more are installed.

That is, even if the arch bridge 310 is continuously pushed forward by using the extrusion means 400 installed in the land section A, it may be quite difficult to accurately set the extrusion direction in which the arch bridge should be installed. The winch 720 is installed on the cross pier 620 so that it can be easily extruded in the direction, and the wire rope 710 connected to the winch is connected to the tip of the arch bridge and pulled to set the extrusion direction of the arch bridge. By 720, the extrusion force can be added to enable an efficient arch bridge extrusion operation.

The arch bridge 310 at the final position is to be supported by the bridge (SHOE) is installed on both ends of the upper end of the bridge pier, for this purpose, the lifting means including a hydraulic jack on the upper surface of the pier coping portion, etc. in advance Install 800.

That is, the hydraulic jack is gradually lowered while the hydraulic jack is raised to contact the lower surfaces of both ends of the arch bridge so that both ends of the arch bridge are supported on the bridge support.

By this pulling means, the arch bridge can be set between the piers and the piers so that the arch bridge can be finally set.

As such, the barge may be withdrawn by a tugboat while being supported by the lifting means so that the barge can be moved to another place, and the barge may be used by dismantling a temporary vent installed in the land section.

Bridge upper structure (arch bridge, etc.) by the bridge construction method of the present invention is assembled directly from the upper part of the temporary support structure, temporary support structure installed in the land section after the construction in advance in the factory and transported to the site, the bridge upper structure collectively It can be manufactured and installed, and the completed upper structure of the bridge can be extruded integrally, so that the bridge construction air can be shortened sufficiently and manufactured and constructed under strict quality control.

Thus, there is no need to secure site sites for assembly, and it is possible to minimize the size by using a barge, which is a water moving means that supports the end of the bridge, but extrudes the completed bridge upper structure forward. Even in this case, the dredging of barges can be performed efficiently with minimal dredging, and it is possible to operate the sea route section even during construction, so that the bridge can be installed more quickly and economically. In addition, one embodiment of the present invention described above and shown in the drawings should not be construed as limiting the technical spirit of the present invention, those of ordinary skill in the art of the present invention variously It is possible to modify and modify the form. Therefore, such improvements and modifications fall within the protection scope of the present invention as long as it will be apparent to those skilled in the art.

Claims (6)

In the method of collectively installing the completed bridge upper structure to cross the waterway (A), In the land section (B), a temporary support structure provided with a moving path including a rail is installed on the upper part, The bridge upper structure is installed to be supported by the moving means including the roller mounted on the moving path, and the extrusion means including the wire and the winch are connected to the bridge upper structure. Arrange the water moving means including a barge provided with a temporary support structure to support the tip of the extruded bridge upper structure in the water, After the extrusion means is operated to allow the bridge upper structure supported by the water moving means to cross the waterway (A), and then install the bridge upper structure on the pre-installed bridge undercarriage. Bridge Construction Method. According to claim 1, wherein the bridge between the long jijangji bridge is an arch bridge, the bridge between the long jijangji through the batch extrusion hypothesis, characterized in that the assembly of the arch bridge segment made in advance in the factory directly installed on the upper portion of the temporary support structure. Construction method. According to claim 1, wherein the extrusion means is connected between the lower end of the bridge upper structure, and the other end is connected between the long bridge bridge through the combined extrusion hypothesis, characterized in that the installation is connected to the winch installed in the bridge lower structure Construction method. The method of claim 1, wherein the extruded bridge upper structure By the lifting means including the hydraulic jack installed on the upper surface of the bridge undercarriage bridge is installed, the lower end of both ends of the bridge upper structure is supported and lowered so that the extruded bridge upper structure to be seated on the bridge substructure Construction method of bridge between long sections through batch extrusion hypothesis. The batch extrusion hypothesis according to any one of claims 1 to 4, further comprising an auxiliary connecting means including a wire brazing material between the temporary support structure installed in the water moving means and the extruded bridge upper structure. Jangji bridge construction method through The extrusion aid as claimed in any one of claims 1 to 4, comprising a winch and a wire connected to the tip of the bridge superstructure to provide additional extrusion force for setting the final installation position of the extruded bridge superstructure and for assisting extrusion. Long bridge construction method through the batch extrusion hypothesis, characterized in that the means further installed in the upper structure of the bridge.

Images