KR100734418B1 - The upper girder segment making yard of bridge using launching wall, and the incremental launching method of bridge with typical section and widen section using that - Google Patents

Abstract

An upper girder segment casting yard of a bridge using a launching wall is provided to construct upper girder segments of a bridge having a general section and a wide-width section with an incremental launching method only by installing a launching wall having the sufficient length to support the web of all upper girder segments in a casting yard. The upper girder segment casting yard of a bridge using a launching wall comprises many form footings(10) installed on the rear of an abutment at regular intervals and formed in the type of an isolating footing, two or more launching walls(20) installed on all or partial form footings and formed to have the wide surface in the perpendicular direction to the launching direction to support the web of all upper girder segments having different cross section areas including an upper girder segment for a general section and an upper girder segment for a wide-width section, a variable slide member(30) installed to a support according to the locational change of the web of the upper girder segment installed on the launching wall used for launching the upper girder segment in the bridge-axis direction and formed to have a structure for moving in the perpendicular direction to a bridge axis or supporting and launching the upper girder segment against the whole launching wall, a system form formed in various shapes to manufacture the upper girder segment and composed of a form assembled with wood or steel members, a form support beam supporting the lower part of the form and a form supporter supporting the wing part of the form, and a form lifting device(50) installed on the form footings to lift up and down the system form.

Description

The upper girder segment manufacturing site of bridges using extrusion wall, and the continuous extrusion construction method of bridges having general section and widening section using them TYPICAL SECTION AND WIDEN SECTION USING THAT}

1 is a plan view schematically showing the manufacturing site of the upper girder segment of the conventional bridge.

Figure 2 is a schematic plan view of the one-line bridge is connected to the wide section at the end of the general section.

Figure 3 is a schematic cross-sectional view showing the support state of the concrete concrete when the conventional section girder segment is extruded in a conventional manufacturing site.

Figure 4 is a schematic cross-sectional view showing a support state of the concrete concrete when the upper section girder segment for widening section in the conventional manufacturing site.

Figure 5 is a schematic cross-sectional view showing a state in which the system formwork is installed in a conventional manufacturing site.

Figure 6 is a perspective view showing the upper girder segment manufacturing site of the bridge using the extrusion wall of the present invention.

7 is a plan view schematically showing the manufacturing site of the upper girder segment of the bridge using the extrusion wall of the present invention.

Figure 8 is a side cross-sectional schematic view showing the upper girder segment manufacturing site of the bridge using the extrusion wall of the present invention.

9 is a schematic cross-sectional view showing a state in which the upper section girder segment for the general section is manufactured in the manufacturing site of the present invention.

Figure 10 is a schematic cross-sectional view showing a state in which the upper section girder segment for widening section is manufactured in the manufacturing site of the present invention.

Figure 11 is a schematic cross-sectional view showing a lifting jack descending state in the manufacturing state of the wide section section girder segment in the production site of the present invention.

12 is a cross-sectional schematic diagram showing a moving state of the variable sliding plate during extrusion of the upper section girder segment for the general section and the extrusion section for the wide section using the manufacturing site of the present invention.

Fig. 13 is a schematic plan view showing a moving state of the launching jack on the shift;

Figure 14 is a schematic cross-sectional view showing a state in which the system formwork for manufacturing the upper section girder segment for general section in the manufacturing site of the present invention.

Figure 15 is a schematic cross-sectional view showing a state in which the system formwork for manufacturing the wide section section girder segment for widening section of the present invention.

Figure 16 is a side cross-sectional schematic diagram showing a state of extruding the upper girder segment using the manufacturing shop of the present invention.

Figure 17 is a schematic view showing a state in which the roller is installed with a variable sliding member of the present invention.

(A) A schematic side view showing the state of the roller support and the roller installed on the extrusion wall.

(B) A plan view schematically showing a state in which a roller support and a roller are installed on an extrusion wall.

<Detailed Description of Major Symbols in Drawing>

10: formwork foundation 11: foundation pile

20: extrusion wall 30: variable sliding member

31: variable sliding plate 32: roller

32a: variable moving roller support 40: system formwork

41: formwork support 42: formwork support

42a: die for widening section 43: formwork

50: formwork elevating device 51; Lifting and lowering hydraulic jack

52: die elevation 60: launching jack

70: upper girder segment 71: upper section girder segment for general section

72: upper girder segment for widening section 73: lower slab

74: abdomen 80: shift

90: lattice basis 100: general section

110: widening section 120: expansion joint

130: Concrete Concrete

The present invention relates to an upper girder segment fabrication site of a bridge using an extrusion wall and a continuous extrusion construction method of a bridge having a general section and a wide section using the same.

The incremental launching method (ILM) is also known as Dr. Fritz Leonhardt and Willie Baur Andra of Leonhardt & Andra, based in Stuttgart, Germany. Has been developed by) to the present.

The initial continuous extrusion method produced and extruded the upper girder segment of the entire length in the workshop with the length as long as the extension of the bridge. However, it took too much workshop and moved the upper girder segment to the predetermined position. The cost was excessively consumed and evaluated as economical.

Since then, a teflon plate (sliding pad) with a very low coefficient of friction has been developed, and a pre-stressing method has been developed such as the introduction of prestressing to concrete upper girder segments, which has been applied to bridge construction until now. .

Since the continuous extrusion method (ILM) can be constructed without scaffolding, it is suitable for obstacles (roads, railways, rivers, protected areas, deep valleys), and construction costs for formwork are reduced according to the construction scale. have.

In addition, all-weather construction is possible regardless of climate by using steam curing and cover installation, and in case of long bridge extension, construction period is shortened.

As a technology related to the continuous extrusion method, a bridge construction method using a box girder formwork system for ELM bridge (Korea Patent Publication No. 10-2005-0110454) was devised.

In addition, the 'extrusion system for pushing the upper girder in the bridge that is installed by the continuous extrusion method (Korea Patent Publication No. 10-0565360) was also created.

All of the above inventions are for a bridge with a general section 100 only.

The reason why the continuous extrusion method is applied to the bridge having only the general section 100 is that the upper girder segment is continuously manufactured because the upper girder segment of the same size is manufactured and launched using the same formwork in the yard. This is because it is not applicable to the widening section 110 that changes to.

As a result, the bridge having the widening section 110 was constructed by separating the general section without the cross-sectional change (applied by the extrusion method) and the widened section with the cross-sectional change (applied by other methods).

If, as shown in Figure 3, using the conventional manufacturing site as it is extruded the upper section girder segment 71 for the general section, the concrete section 130 of the lower portion of the abdomen 74 of the upper section girder segment 71 for general section ), So there is no structural problem.

However, as shown in FIG. 4, in the widening section 110, the upper section girder segment 72 for the widening section is placed on the rail for supporting the extrusion variable sliding pad of the mold body and the bridge support for the extrusion of the temporary pier. And the contact surface position is moved to the middle point of the lower slab (73).

This contact surface is a support point for transferring the widening section girder segment 72 load in the extrusion process to the foundation of the shop, and should be located at the bottom of the abdomen 74 of the wide section section girder segment 72 having a high vertical rigidity.

However, when the lower slab 73 having weak vertical rigidity becomes a supporting point by extrusion of the upper section girder segment 72 for widening section, damage or destruction of the lower slab 73 may be caused.

As a result, conventional bridges having an explosive section 110 are constructed with an extrusion method (ILM) for the general section 100 having no cross-sectional change, and the expansive section 110 is different from other methods such as in-site casting (FSM). The application was constructed by separating the general section 100 and the widening section 110.

Conventionally, the one-line bridge (Hyundai Engineering, Yushin Corporation / Design, Hyundai Construction / Construction) of FIG. 2, which is a construction example of a bridge in which a wide section 110 is connected to an end of a general section 100, has a general section 100 extruded method (ILM). ) And the widening section 110 was constructed by the field casting method (FSM).

Ilsun Bridge was installed by installing a construction site for extrusion (ILM) of upper girder, propulsion nose and temporary structures such as temporary copper bar, formwork and bridge for field casting (FSM).

As the two sections were divided into two different construction methods, the construction cost was increased due to the installation of separate temporary structures.

Of course, it can be installed in parallel with the extrusion method (ILM) and other methods, but it can not be a better way than the construction only by the extrusion method without the bridge separation, and the different construction method of the separation bridge due to the widening section (110) There is a problem that weakens the advantages of ILM.

In addition, bridges having a uniform width and a closed section of the upper girder segment in which the width of the abdomen 74 is formed to be different for each cross-section but the width of the abdomen 74 is applied so as to be applied to the clausoid linear section. There is a problem that can not be constructed by the conventional continuous extrusion method due to the change of the position of the support point (74).

The present invention provides an extrusion wall having a length sufficient to support the abdomen for both the wide section girder segment and the wide section section girder segment for a wide section, and the upper section of a bridge having a section with a wide section and a wide section. The purpose of the girder segment can be constructed only by continuous extrusion method.

In addition, when extruding the upper girder segment in the wide section, there is also an object to continuously extruding the upper girder segment by extruding while moving the movable sliding pad on the upper part of the extrusion wall.

In addition, the purpose of varying the position of the launching jack on the shift or by installing a plurality of launching jacks to easily extrude the upper girder segments in the widening section continuously in the shift.

In addition, there is also an object to continuously extrude the upper girder segment by a continuous extrusion method for bridges having a closed linear section and a general section.

In addition, there is also an object to provide a fabrication site and an extrusion method applicable to reinforced concrete structure, prestressed concrete, steel and composite structure.

The present invention relates to an upper girder segment fabrication site of a bridge using an extrusion wall and a continuous extrusion construction method of a bridge having a general section and a wide section using the same.

The fabrication site of the present invention installs an extrusion wall having a length sufficient to support the abdomen for both the wide section girder segment and the wide section girder segment for the wide section, and then installs the bridge with the wide section and the wide section. It can be installed only by continuous extrusion method.

In addition, the upper girder segment can be easily extruded by moving the variable sliding plate while extruding the upper girder segment in the wide section.

In addition, it is possible to easily extrude the upper girder segment in the wide section in the shift by changing the position of the launching jack or by installing a plurality of launching jacks.

To this end, the upper girder segment fabrication site of the bridge using the extrusion wall of the present invention, the formwork foundation is provided in the back of the bridge, the foundation form; It is installed on the top of the formwork and supports the upper girder segment manufactured by the continuous extrusion method, but can support both the upper section girder segment for constant width and the upper section girder segment for wide section. An extrusion wall having an upper surface length sufficient to be present; A variable sliding member installed at a support point according to a change in the abdominal position of the upper girder segment installed on the extrusion wall to reduce the frictional force generated while the upper girder segment moves on the extrusion wall; A system formwork in which the upper girder segment is manufactured; It is configured to raise and lower the system formwork, the formwork lifting device installed on the formwork base.

In the continuous extrusion method of the bridge using the production site, the extrusion of the upper section girder segment for general section uses the production site of any one of claims 1 to 7, the general section on the formwork lifting device of the production site After installing the system formwork for manufacturing the girder segment, manufacturing the upper section girder segment using the system formwork; Detaching the system formwork using the formwork elevating device; Extruding the upper section girder segment for the general section detached from the system formwork using a launching jack,

Extrusion of the wide section girder segment for widening section uses the production site of any one of claims 1 to 7, and the system formwork is installed after installing the system formwork for manufacturing the wide section section girder segment on the formwork lifting device. Manufacturing an upper section girder segment for the widening section by using; Detaching the system formwork using the formwork elevating device; Extruding the wide section section girder segment from which the system form was detached by using a launching jack while moving the variable sliding member at the contact surface between the lower part of the wide section section and the contact surface of the abdomen and the extrusion wall; It consists of.

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

However, the accompanying drawings are only one example for more specifically describing the technical idea of the present invention, and thus the technical idea of the present invention is not limited to the accompanying drawings.

Formwork foundation 10, which is a component of the present invention, as shown in Figures 6 and 7, a plurality of dogs are arranged at regular intervals behind the alternating 80.

In addition, the formwork foundation 10 is provided with a direct foundation or foundation pile 11 according to the ground conditions.

What is unique here is that the formwork foundation 10 of the present invention is in the form of an independent foundation rather than the front foundation or lattice foundation 90 that is conventionally installed.

More specifically, as shown in FIG. 1, the grid foundation 90 or the front foundation is installed in the lower portion of the upper girder segment 70, which is manufactured. ) Only installed so that the size of the foundation was reduced.

The upper girder segment 70 refers to an upper girder section that is manufactured in a unit of a predetermined length when the bridge is constructed by a continuous extrusion method as shown in FIG. 16.

Extrusion wall body 20, which is a component of the present invention, is installed to correspond to the position of the abdomen on the formwork foundation 10 to support the abdomen of the upper girder segment 70, as shown in FIG.

6 and 7 show that the abdomen is provided in two rows on the formwork foundation 10 to support the abdomen of the upper girder segment 70, which is two places.

As such, the extrusion wall 20 may be installed at least two, depending on the number of support surfaces during extrusion.

At this time, the extrusion wall 20 is not to be installed on all the formwork foundation 10, it can also be installed in all the formwork foundation 10, except the innermost formwork foundation 10, as shown in Figs. .

Extrusion wall 20 of the present invention is compared with the concrete concrete 130 that has been conventionally used as the core technical idea of the present invention.

As shown in FIG. 3 and FIG. 4, the structure of the conventional concrete concrete 130 has a shape in which only a portion supporting the upper girder segment 70 protrudes.

As such, when manufacturing the concrete concrete 130 having a structure as in the prior art it is impossible to change the point of contact with the upper girder segment (70).

This is because the continuous extrusion method so far has been applied only to the general section (100).

However, in the present invention, the wide section 110 also has a structure in which the upper girder segment 70 and the extrusion wall 20 are in contact with each other in order to apply the continuous extrusion method.

To this end, the extrusion wall 20 of the present invention is to have a wide flat surface in a direction perpendicular to the extrusion direction to support both the abdomen of the plurality of upper girder segments 70 having different cross-sectional area.

The variable sliding member 30, which is a component of the present invention, is used when extruding the upper girder segment 70 in the axial direction on the extrusion wall 20. The upper girder segment 70 is installed on the extrusion wall 20. It is installed at the support point according to the change of abdominal position.

In general, the conventional teflon plate used as the sliding member is installed at the projecting point of the concrete concrete 130 is formed small in size, it was not necessary to move in the direction perpendicular to the throttle.

However, since the variable sliding member 30 of the present invention continuously extrudes not only the upper section girder segment 71 but also the wide section upper section girder segment 72, the position of the abdominal support point is changed.

Therefore, the variable sliding member 30 of the present invention should be able to correspond to the position of the abdominal support point to be changed.

To this end, the variable sliding member 30 should have a structure that can move in a direction perpendicular to the axial axis or have a structure that can be extruded while supporting the upper girder segment 70 with respect to the whole extrusion wall 20.

To this end, a variable sliding plate 31, such as a teflon plate, as shown in Figure 12, but should be installed in the direction perpendicular to the axial axis.

In order to be movable, the variable sliding plate 31 may be pushed in a direction perpendicular to the throttle by hand at every extrusion, and the variable sliding plate 31 may be perpendicular to the axial axis in accordance with the change of the abdominal point using a hydraulic device. Can be moved in the direction of phosphorus.

In addition, as shown in FIG. 17, the roller 32 and the variable movable roller support 32a may be provided to support the abdominal point even when the abdominal point is changed.

17 has a structure in which the roller 32 is elongated in the direction perpendicular to the throttle so that the movement of the roller 32 is unnecessary.

In addition, although not shown, the short length roller 32 and the variable movable roller support 32a may be configured, and the variable movable roller support 32a may be configured to be movable in a direction perpendicular to the throttle using a hydraulic device or the like. .

The variable sliding member 30 may be installed on all the extrusion wall 20, or may be extruded while being installed only in the extrusion wall 20 that supports the upper girder segment 70.

System formwork 40 of the present invention can be formed in various forms as a device for manufacturing the upper girder segment (70).

As a typical method, as shown in FIG. 14, the formwork 43 in which wood or various steel members are assembled, and the formwork support beam 41 and the wing portion of the formwork 43 supporting the formwork 43 are provided. It is composed of a formwork support 42 which is to support.

On the other hand, the formwork 43 of FIG. 14 is for producing a general oral upper girder segment, and the one shown in FIG. 15 is for producing an upper section girder segment 72 for widening section.

Manufacture the upper section girder segment 71 for the general section When manufacturing the upper section girder segment 72 for the wide section, after disassembling the formwork 43 and the formwork support 42 with the system formwork 40 of FIG. What is necessary is just to install the formwork support 42 after assembling the wide section 42a.

The formwork lifting device 50, which is a component of the present invention, is configured to raise and lower the system formwork 40 and is installed on the formwork foundation 10.

The formwork elevating device 50 moves the system formwork 40 when manufacturing the formwork 43, and the formwork 43 is installed on the formwork support beam 41, and the concrete is poured after the reinforcing bars are assembled. After this, one upper girder segment 70 is completed, and one upper girder segment 70 is completed to move the system formwork 40 downward.

At this time, the system formwork 40 is to be seated on the extrusion wall 20, wherein the form 43 and the formwork support 42 are dismantled to extrude the upper girder segment 70 produced.

The formwork elevating device 50 may be formed of various components, for example, as shown in Figure 6 may be composed of the elevating hydraulic jack 51 and the formwork lifting beam 52.

Specifically, the lifting and lowering hydraulic jack 51 is installed on the formwork base 10, the formwork lifting beam 52 is installed on the raising and lowering hydraulic jack 51 to support the system formwork 40 lifting and lowering hydraulic jack ( In accordance with the operation of 51) the formwork lifting beam 52 to raise and lower the system formwork (40).

The lifting and lowering hydraulic jack 51 may be installed in plural positions on the formwork foundation 10, and the lifting and lowering hydraulic jack 51 may use a well-known general hydraulic jack.

Formwork lifting beam 52 is made of a steel beam (steel beam), reinforced concrete beam (RC beam) and prestressed concrete beam (PSC beam) and the like is installed on the lifting and lowering hydraulic jack (51) upper part 10, 11 As you can see, it is possible to move up and down.

At this time, the lifting hydraulic jack 51 is located below the formwork lifting beam 52, it is not installed on all the formwork foundation 10, but only need to be installed where the formwork lifting board 52 is installed as shown in FIG.

The use of the formwork lifting beam 52 and the lifting and lowering hydraulic jack 51 eliminates the inconvenience of the work coming from the separate system formwork 40, which is a conventional method as shown in FIG. 5, and reduces the number of hydraulic jacks required. It is a structure that can be.

Looking at the order of extruding the upper girder segment 70 by using the upper girder segment 70 of the present invention made of the above structure as follows.

First, extrusion of the upper section girder segment for general section,

After installing the system formwork (40) for the production of general section upper girder segments (71) on the formwork lifting beams (52) of the workshop, assemble the reinforcement from the system formwork (40) and pour concrete for general section girder The segment 71 is produced.

When the upper section girder segment 71 for the general section is manufactured, the system formwork 40 is detached using the formwork elevating device 50.

Then, using the launching jack 60, the upper section girder segment 71 for the general section from which the system formwork 40 was removed.

Then, the extrusion of the upper section girder segment 72 for widening section,

After installing the system formwork 40 for manufacturing the wide section girder segment 72 on the formwork elevator 52 of the manufacturing site, assembling the reinforcing bars in the system form 40 and placing concrete, the upper section girder segment for the wide section Produce 72.

When the upper section girder segment 72 for widening section is manufactured, the system formwork 40 is detached using the formwork elevating device 50.

Then, while moving the variable sliding plate 31 in a direction perpendicular to the extrusion direction to the contact surface of the lower portion of the upper section girder segment 72 and the extrusion wall 20 for widening section using the launching jack 60 ( What is necessary is just to extrude the upper part girder segment 72 for the widening section from which 40) was removed.

At this time, when extruding the upper section girder segment 72 for the wide section immediately after the extrusion of the section section girder segment for general section, the installation change of the system formwork 40 only the formwork 43 wide section section girder as described above The segment 72 is installed and constructed.

In addition, the formwork lowering and lowering device 50 is configured to repeatedly raise and lower each time the upper girder segment 70 is manufactured and extruded.

Extrusion method as described above may be constructed while applying a variety of orders depending on the wide section 110 position of the bridge.

For example, if the widening section 110 is located at the end of the bridge as shown in Figure 2 continues to produce the upper section girder segment 71 for the general section after extrusion, and then the wide section section girder segment 72 at the end It is good to extrude continuously.

In addition, in the case where the widening section 110 is two sections or more, a wide temporary bridge bearing may be installed at the pier where the widening section 110 passes, and may be extruded by replacing it with a permanent bridge bearing after the extrusion is completed.

Extrusion method as described above is eliminated the expansion joint 120 generated by separating the conventional general section 100 and the widening section 110 as shown in FIG.

The upper girder segment 70 manufactured in the manufacturing site of the present invention composed of the above components is extruded by a launching jack 60 (Launching jack).

The installation position of the launch jack 60 may be installed on the shift 80, or may be installed on the extrusion wall 20.

The launching jack 60 may be a pulling jack or a lift and push jack generally used in a continuous extrusion method.

Pulling jack or lift and push jack can be applied to the known ones used in the current extrusion method, so the detailed description and illustration of the structure will be omitted.

At this time, when using the lift-and-push jack as the launching jack 60, it is preferable to be installed to be movable in a direction perpendicular to the shaft while being installed on the shift 80 or the extrusion wall 20.

This is the same as supporting the lower abdomen of the upper girder segment 70 by moving only the teflon plate to both sides during extrusion of the wide section 110 after extruding the general section 100, the upper part even in the portion where the shift 80 is installed. To support the lower abdomen of the girder segment (70).

At this time, a plurality of launching jacks 60 are installed on the shift 80 without moving the launching jacks 60 as described above, but the positions corresponding to the abdomen of the upper section girder segment 71 for the general section and the upper section for the widening section. Installed at all positions corresponding to the abdomen of the girder segment 72, a separate launch jack 60 may be used when extruding the general section 100 and extruding the wide section 110.

On the other hand, by using the fabrication of the present invention configured as described above is applied to the cross-sectional linear section is uniform but the location of the abdominal point is different in cross-section cross section is formed in the bridge having a linear section and the general section (100) Continuously it can be constructed by the extrusion method.

Specifically, the extrusion of the general section upper girder segment 71 is extruded in the same manner as the extrusion of the general section segment as described above using the manufacturing site of the present invention,

Extrusion of the top section girder segment for the clausoid linear section is installed by using the system formwork 40 for the manufacture of the top section girder segment for the clausoid linear section using the system formwork 40 After manufacturing the upper section girder segment for the linear section, remove the system formwork 40 using the formwork elevating device 50, and then contact the lower surface of the upper section girder segment for the clasoid linear section with the contact surface of the extrusion wall 20. By moving the variable sliding member 30 in the direction perpendicular to the extrusion direction, it is possible to extrude the upper girder segment for the clasoid linear section with the system formwork 40 removed using the launching jack 60.

According to the present invention, an extrusion wall having a length sufficient to support the abdomen for both the wide section girder segment and the wide section girder segment for the wide section is installed in the fabrication site to provide a bridge having a wide section and a wide section. It can be installed only by the continuous extrusion method.

In addition, when extruding the upper girder segment in the wide section, it is possible to easily extrude the upper girder segment by extruding while moving the variable sliding member.

In addition, it is possible to easily extrude the upper girder segment in the wide section in the shift by changing the position of the launching jack or by installing a plurality of launching jacks.

In addition, a bridge having a closed linear section and a general section can also extrude the upper girder segment continuously by the continuous extrusion method.

There is also provided a fabrication site and an extrusion method applicable to reinforced concrete structures, prestressed concrete, steels and composite structures.

Claims (10)

In the upper girder segment manufacturing site of the bridge, A formwork foundation (10) installed at the back of the bridge (80) and having an independent foundation form; The upper girder segment 70, which is installed on the formwork base 10 and is made to be manufactured by a continuous extrusion method, has a constant width for the upper section girder segment 71 and the wide section for the width change. An extrusion wall 20 having an upper surface length sufficient to support both the abdomen of the upper girder segment 72; It is installed at the support point according to the abdominal position change of the upper girder segment 70 installed on the extrusion wall 20 to reduce the friction force generated while the upper girder segment 70 moves on the extrusion wall 20. And variable sliding member 30 and; A system formwork 40 in which the upper girder segment 70 is manufactured; Configured to raise and lower the system formwork 40, the formwork lifting device 50 installed on the formwork foundation 10; Upper girder segment manufacturing site of bridge using extrusion wall The method of claim 1, The extrusion wall 20 is characterized in that the number of the support surface of the abdomen of the upper girder segment 70 is installed, Upper girder segment manufacturing site of bridge using extrusion wall The method of claim 1, The variable sliding member 30 is a variable sliding plate 31, characterized in that the movable in the direction perpendicular to the axial axis, Upper girder segment manufacturing site of bridge using extrusion wall The method of claim 1, The variable sliding member 30 is a roller 32, the variable movable roller support (32a) is installed at the bottom, the variable movable roller support (32a) is characterized in that to move in the direction perpendicular to the axial axis, Upper girder segment manufacturing site of bridge using extrusion wall The method of claim 1, The system formwork 40 is characterized by consisting of formwork support 41, formwork support 42, formwork 43, Upper girder segment manufacturing site of bridge using extrusion wall The method of claim 1, The formwork lifting device 50, A lifting and lowering hydraulic jack 51 installed on the formwork foundation 10; It is installed on the lifting hydraulic jack 51, the formwork lifting beam 52 to support the system formwork 40; consisting of the formwork lifting elevator 52 in accordance with the operation of the lifting hydraulic jack (51) Characterized in that it is designed to raise and lower the 40, Upper girder segment manufacturing site of bridge using extrusion wall The method of claim 1, Launching jack 60 to extrude the upper girder segment 70 is installed in the alternating 80 or the extrusion wall 20, The launching jack 60 is a lift-and-push jack; Lift and push jack is characterized in that it moves in a direction perpendicular to the shaft while being installed on the alternating 80 or extrusion wall 20, Upper girder segment manufacturing site of bridge using extrusion wall. In the continuous extrusion construction method of a bridge having a general section and a wide section, The upper section girder segment 71 for general section and the upper section girder segment 72 for wide section are manufactured to be integrated without expansion joints 120 at the production site of claim 1 and are extruded by a continuous extrusion method. Continuous extrusion construction method for bridges having general section and wide section using extrusion wall. In the continuous extrusion construction method of a bridge having a general section and a wide section, Extrusion of the upper section girder segment 71 for general section uses a manufacturing site of any one of claims 1 to 7, After installing the system formwork 40 for the production of the general section upper girder segment 71 on the formwork lifting device 50 of the production site, using the system formwork 40 to produce the upper section girder segment 71 for the general section. Doing; Detaching the system formwork 40 using the formwork elevating device 50; Extruding the upper section girder segment 71 for the general section detached from the system formwork 40 using the launching jack 60, Extrusion of the upper section girder segment 72 for widening section uses the manufacturing site of any one of claims 1 to 7, After installing the system formwork 40 for the widening section upper girder segment 72 on the formwork lifting device 50 of the production site, the system section 40 is used to manufacture the upper section girder segment 72 for the widening section. Making; Detaching the system formwork 40 using the formwork elevating device 50; The wider section girder segment 72 moves the variable sliding member 30 to the contact surface between the lower end of the abdomen and the extrusion wall 20 in a direction perpendicular to the extrusion direction, and uses the launching jack 60 to form the system form 40. Comprising the step of extruding the detached upper section girder segment (72); Continuous extrusion construction method for bridges having general section and wide section using extrusion wall. In the continuous extrusion construction method of a bridge having a general section and a clausoid linear section, Extrusion of the upper section girder segment for general section is extruded by the extrusion method of claim 8, The extrusion of the clathoid linear section upper girder segment having a constant width and having a closed linear shape in which the abdominal position is changed, Using the production site of any one of claims 1 to 7, Manufacturing a closed form girder segment for the closed line section using the system form 40 after installing the system formwork 40 for manufacturing the clausoid linear section girder segment; Detaching the system formwork 40 using the formwork elevating device 50; The system form 40 using the launching jack 60 while moving the variable sliding member 30 in the direction perpendicular to the extrusion direction on the contact surface between the lower portion of the upper portion of the upper section girder segment and the extrusion wall 20 for the clasoid linear section. Comprising the step of extruding the detached clausoid linear section upper girder segment; Method for continuous extrusion of bridges having normal sections and clausoid linear sections using extrusion walls.

Images