KR101037581B1 - U-Typed Channel Bridge Form System Using Movable Concrete Forms and U-Typed Channel Bridge Construction Method Using the Same - Google Patents

Abstract

The present invention relates to a UCB formwork system having a moving formwork for producing a precast segment for a channel bridge having a U-shaped or H-shaped cross section by a match cast method, and a method of manufacturing a UCB using the same.

The present invention has a stationary formwork, bottom formwork, side formwork, moving formwork, inner formwork, movable left and right on the rail under the formwork, and includes a bogie for moving the formwork and the segment, one side of the previously manufactured segment The present invention provides a UCB formwork system and a UCB fabrication method having a moving formwork for forming a match cast of the leading and trailing segments by acting as a moving formwork supporting the left and right lateral sides of the trailing segment.

According to the present invention, it is possible to fundamentally prevent the occurrence of tolerances between the segments, it is possible to assemble the perfect segment at the bridge installation site, and to simplify the formwork assembly installation process for the segment manufacturing to obtain an excellent effect that can greatly improve the work productivity of the segment production Lose.

Channel Bridge, Precast Segments, Match Cast, Moving Formwork

Description

U-Typed Channel Bridge Form System Using Movable Concrete Forms and U-Typed Channel Bridge Construction Method Using the Same}

The present invention relates to a formwork system for manufacturing a precast segment for a channel bridge having a U-shaped or H-shaped cross section, and a manufacturing method using the same. More specifically, the present invention relates to fabrication and assembly by introducing a match cast manufacturing method in a bridge segment manufacturing process. The present invention relates to a UCB formwork system having an improved moving formwork and a method of manufacturing a UCB using the same, which can completely assemble a segment at a site by fundamentally preventing a tolerance and greatly improve work productivity related to bridge segment production.

In general, the OVER-PASS BRIDGE refers to a bridge crossing the road. Since the overpass bridge is installed at the upper part of the road crossing during construction, encroaching on the space during construction of the overpass bridge can be a major obstacle to traffic. It is necessary to secure enough.

In addition to meeting these demands, the channel bridge (CHANNEL BRIDGE, US Patent No. 5577284) was introduced as a bridge construction method that can be quickly constructed without overriding the driver's vision on the road crossing. Ho)

In the related art, a channel bridge (CHANNEL BRIDGE) has been introduced in connection with a bridge construction method in which a bridge top plate is completed by sequentially combining precast segment members in parallel in a downward bridge manner without installing a mold (girder, GIRDER).

1A is a perspective view illustrating an overall installation of the channel bridge C, and FIG. 1B is a cross-sectional view of the segment member 10 for channel bridges.

The channel bridge (C) is a beam extending in the longitudinal direction as shown in Figure 1b is formed by protruding the flange portion (1) to the outer side of the upper side and the inner wall is formed by the parapet wall surface (2), both sides installed to face each other A plurality of precast segment members 10 for channel bridges having the same cross-sectional shape formed of a deck slab 12 extending in the longitudinal direction between the beam 11 and the inner lower portion of the side beam 11 are arranged in parallel as shown in FIG. 1A. It is a bridge made by combining dogs.

The channel bridge C is embedded in the upper / lower inner side of the side beam 11 so that the longitudinal PC steel wire 13 is fixed after tensioning, for example, by post tension, and the lower and side beams of the deck slab 12 11) The lateral PC steel wire 14 is further buried in the lower part, and is normally settled after tensioning in the factory manufacturing step. In addition, a paving layer 15 is formed on the surface of the deck slab 12, and the vehicle passes over the paving layer 15.

The precast segment member 10 for the channel bridge has a slim cross-sectional structure compared with other bridge methods, and does not erode even when the space is under construction. In addition to excellent quality control due to the use of the site, the construction can be achieved by simply combining the mechanical fast in the field, it is possible to provide an economical overpass bridge through air shortening.

Since the channel bridge having such an advantage includes only the side beam and the deck slab, the channel bridge has a cross-sectional structure in which the side beam 11 almost bears the working load caused by the vehicle. In addition, since the side beam 11 should also serve as a kind of barrier, it is designed to ensure the minimum height required and the width of the side beam is determined in consideration of the supporting load.

In order to install these side beams 11 at the factory, transport them to the construction site, and install them in the pre-installed shifts and piers, in the field, a temporary system of launching from one shift side to the other shifts or piers is installed. In addition, the flange 1 is protruded outward from the upper side of the side beam so as to be supported and launched by the temporary system.

Furthermore, the inner wall surface 2 of the side beam is treated with a parapet wall to serve as a security wall, and the lower inclined inner haunches naturally formed on the construction joints of segment concrete below the paravet wall. Is formed, the outer wall surface of the side beam is formed to be inclined, the pavement layer 15 is formed to the upper surface of the deck slab 12 and the lower portion of the haunch portion.

As a result, the segment constituting the channel bridge has a U-shaped cross-section as a whole, and is manufactured in the same cross-sectional shape in advance in the factory and transported to a vehicle in the field in order to reduce workability and manufacturing cost. Segment members 10 are coupled to each other in parallel to be installed.

However, since such a channel bridge is structurally mainly loaded with side beams, and the deck slab 12 follows a cross-sectional design in which a thin thickness is formed for securing a space for a die, the width of the channel bridge must be large. There was a limit to the applicability.

Therefore, when it is necessary to design a channel bridge having a wide width source (lateral width), that is, in order to construct a channel bridge having a larger transverse width, the cross-section and height of the side beam 11 are inevitably increased. As the height of the side beams increases, the usability of the driver of the driving vehicle cannot be secured, which inevitably decreases the usability, and when the deck slab thickness needs to be increased, the weight of the channel bridge must increase, resulting in a large proportion of transportation costs. There was a problem that the channel bridge construction is not preferable.

In order to improve such a problem, as shown in Figures 2a and 2b, a structure having a segment H-shaped cross section is proposed to ensure structural stability, as well as more efficient bridge bridge construction Therefore, construction of a channel bridge with a large transverse width is possible.

Meanwhile, the conventional H-shaped segments 30 have side beams 31 opposite to the sides of the deck slab 32 extending laterally, and have a H-shaped cross-sectional structure as a whole. It is manufactured in the form and installed at the bridge site. However, in the installation process, the longitudinal contact between the H-shaped segments 30 did not coincide with each other, causing a problem in that they were not aligned in the field.

The reason for this is that partial deformation occurs in these H-shaped segments 30 due to the tolerances naturally occurring in the process of manufacturing the respective H-shaped segments 30. As a result, the bridge assembly is smoothly performed in the field. It was to create a problem that could not be done.

The present invention is to solve the conventional problems as described above, the purpose is to prevent the occurrence of tolerances in the manufacturing process U-type or H-type segment in the factory to produce a perfect cast assembly in the field to enable the perfect cast assembly in the field The present invention provides a UCB formwork system having an improved moving formwork and a method of manufacturing UCB using the same to enable a smooth assembling and installation work in a field to greatly improve the productivity of a bridge installation work.

And the present invention in the formwork required for the production of U-type or H-type concrete segment for another purpose, one side of the segment using a fixed formwork, the other side using a moving formwork, the moving formwork pre-made concrete segment The present invention provides a UCB formwork system having a moving formwork and a method of manufacturing a UCB using the same, by simplifying the formwork manufacturing process and greatly improving the work productivity of the segment manufacturing process.

In order to achieve the above object, the present invention, in the formwork system for producing a concrete segment for the channel bridge (Channel Bridge),

A fixed formwork installed to support one side of the segment and one side of a lower edge of the segment;

A bottom formwork supporting a bottom surface of the segment at one side of the stationary formwork;

Side molds respectively installed to support both sides of the segment in the front and rear directions;

A moving formwork installed to support the left and right lateral sides of the segment about the bottom formwork;

An inner formwork extending from the top of the stationary formwork and the side formwork to the center of the segment respectively to form an upper inner surface of the segment; And

Supporting the left and right directions of the trailing segment to one side of the previously manufactured segment, including; a bogie for moving left and right on the horizontally installed rail in the horizontal direction in the lower side of the bottom formwork; It provides a type channel bridge (UCB) formwork system with moving formwork, which serves as a moving formwork to achieve match cast fabrication of leading and trailing segments.

 And the present invention preferably the fixed formwork includes a first formwork fixed vertically and the second formwork is installed horizontally fixed to the bottom of the first formwork in the form of "", the first formwork comprises a horizontal jack It is disposed so as to be able to adjust the horizontal position relative to the work frame, the second formwork provides a UCB formwork system having a moving formwork, characterized in that the height can be adjusted from the bottom using a vertical jack provided at the bottom thereof.

In another aspect, the present invention preferably is characterized in that the bottom formwork is formed with an extension for supporting the side of the trailing segment, one side of the corner adjacent to the fixed formwork, one side of the preceding segment is placed on the top of the other corner. Provided is a UCB formwork system with moving formwork.

And the present invention preferably further comprises a support frame at the bottom of the bottom formwork, the pedestal is mounted on the support frame, the pedestal is characterized in that the height is adjustable by the vertical jack mounted on the support frame Provided is a UCB formwork system with formwork.

In another aspect, the present invention preferably provides a UCB formwork system having a moving formwork, characterized in that the bogie is provided with a hydraulic jack on its upper side to lift and move the pedestal, formwork and segments to the top.

The present invention preferably further includes a primary formwork and a final formwork for manufacturing the primary segment and the final segment, wherein the primary formwork and the final formwork are smaller in width than the bottom formwork of the intermediate segment. It provides a UCB formwork system with moving formwork, characterized in that the concrete is poured in a low position.

In another aspect, the present invention is characterized in that the fixed formwork is formed between the first formwork and the second formwork to form an inclined surface on the primary segment and the final segment by mounting an inclined plate for manufacturing the primary segment and the final segment. A UCB formwork system with moving formwork is provided.

And the present invention preferably further comprises a cradle for moving the manufactured segment to a separate place, the cradle UCB with a moving form, characterized in that located on the rail on the opposite side of the fixed formwork Provides a formwork system.

In addition, the present invention preferably provides a UCB formwork system having a moving formwork, characterized in that it further comprises a work frame provided with a walkway around the fixed formwork and the side formwork.

And the present invention preferably provides a UCB formwork system having a moving formwork, characterized in that the fixed formwork is movable horizontally through a horizontal jack between the working frame.

In order to achieve the above object, the present invention provides a method for manufacturing a segment for a channel bridge (CHANNEL BRIDGE),

A bottom segment, a fixed formwork located on the left and right sides of the bottom formwork, a primary formwork installed on the left and right sides of the bottom formwork, the side form in the front and rear direction of the bottom formwork and the inner formwork to produce the primary segment step;

Moving the primary segment in a bogie away from the stationary formwork;

Installing the bottom formwork and the side formwork for the secondary segment on one side of the fixed formwork, and moving the primary segment to the fixed formwork side to support the one side as the moving formwork for the secondary segment and manufacturing the secondary segment ;

Moving the secondary segment into the bogie to move away from the stationary formwork;

Installing the bottom formwork and the side formwork for the third segment on one side of the fixed formwork, and moving the secondary segment to the fixed formwork side to support the one side as the moving formwork of the tertiary segment and manufacturing the third segment ; And

Repeating the above steps to produce a final segment of the target bridge length to produce a plurality of segments in a match cast method; provides a method of manufacturing UCB using a moving form comprising a.

And the present invention preferably provides a method for manufacturing a UCB using a moving formwork, characterized in that the step of producing the primary segment and the final segment further comprises the step of lowering the height of the bottom formwork.

In another aspect, the present invention preferably provides a method for manufacturing UCB using a moving formwork, characterized in that further comprising the step of applying a concrete release material to the moving formwork side of the segment.

According to the present invention, since the segments are manufactured by the match cast manufacturing method in the process of manufacturing the U-type or H-type segment, it is possible to fundamentally prevent the occurrence of tolerances between the segments, thereby enabling perfect segment assembly in the field. Therefore, the smooth assembly and installation work at the bridge installation site is possible, and the improved effect of greatly improving the productivity of the bridge installation work is obtained.

And according to the present invention in the formwork installation work required for the production of U- or H-shaped concrete segment, one side of the segment using a fixed formwork, the other side using a moving formwork, the moving formwork is one side of the pre-fabricated concrete segment By using this will only require the assembly of new bottom formwork and side formwork for the assembly work for the manufacture of the segment. Therefore, the effect of greatly improving the work productivity of the segment production is obtained by simplifying the formwork assembly installation process for the segment production.

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

UCB formwork system 100 with a moving formwork according to the present invention is to produce a concrete segment for the channel bridge (CHANNEL BRIDGE) in the factory precast method, to achieve a match cast production of the line, trailing segments.

UCB formwork system 100 with a moving formwork according to the present invention has a fixed formwork 110 is installed to support one side of the side and one side of the lower edge of the segment.

The fixed formwork 110 forms one side of the formwork of the concrete segment, as shown in FIGS. 3 and 4a and 4b, the first formwork 112 and the first formwork 112 fixed vertically. It consists of a second formwork 114 which is horizontally fixed to the bottom of the "" "type.

Therefore, a portion where the first formwork 112 and the second formwork 114 are connected to each other forms one edge of the concrete segment.

That is, the fixed formwork 110 is fixed to the first formwork 112 and the second formwork 114 to form a formwork of one side of the concrete segment, the concrete segment is its specification according to the shape and size of the bridge, respectively Since it is manufactured differently, the first formwork 112 is connected to the work frame 120 to be horizontally adjustable through the horizontal jack 112a so as to universally manufacture concrete segments having different sizes. The formwork 114 is mounted to enable height adjustment from the bottom using a vertical jack 114a provided at the bottom thereof.

The work frame 120 is a structure structure located in the manufacturing site, as shown in Figure 3, having a workway 122 on the back of the fixed formwork 110, workers assemble the formwork of concrete segments and concrete pouring Work is being made possible.

And UCB formwork system 100 with a moving formwork according to the present invention has a bottom formwork 130 for supporting the lower surface of the segment on one side of the fixed formwork 110. The bottom formwork 130 is for forming the bottom surface of the concrete segment, it is arranged horizontally, the bottom formwork 130 is disposed one side of the corner adjacent to the second formwork 114 of the fixed formwork 110 do.

In addition, the bottom formwork 130 forms an extension portion 132 opposite the other side edge portion of the second formwork 114, as described later, wherein the extension portion 132 is placed on one side of the preceding segment. As a part for supporting the side of the trailing segment, the side edges of the preceding segment are supported on the bottom formwork 130 on the extension part 132 so as to stably serve as the moving formwork 170 of the trailing segment without shifting downward. It is.

Meanwhile, the bottom formwork 130 has a support frame 140 fixed to the bottom thereof at a lower side thereof, and a pedestal 142 is placed on the support frame 140, and the support frame 140 is supported by the pedestal 142. It is a structure that is mounted on and supported on).

The pedestal 142 is a structure that supports the bottom formwork 130 from the bottom, as shown in Figure 5, the concrete load is placed in the bottom formwork 130 by holding the lower surface of the bottom formwork wide Ensure that it is supported in a stable state. In addition, the pedestal 142 is adjustable in height by a vertical jack 144 mounted to the support frame 140, which is shown in Figure 4b, the plurality of vertical jacks 144 of the pedestal 142 The lower surface is supported, the height of the height can be adjusted by the vertical jack 144, and thus the fabrication of the segment is made in the state that the bottom formwork 130 is placed on the wide pedestal 142.

And UCB formwork system 100 with a moving formwork according to the present invention includes a side formwork 150 installed to support the front and rear sides of the concrete segment. The side formwork 150 is to support both sides in the front and rear direction of the concrete segment, it is disposed in the front and rear direction of the segment forming a direction perpendicular to the fixed formwork 110, the lower end of both sides of the bottom formwork 130. It is integrally connected to the end, and its back side is each supported by the working frame 160 as shown in FIG.

In addition, a workway 162 is disposed in the work frame 160 positioned at the rear surface of the side formwork 150, respectively, so that workers can perform the formwork and concrete pouring work. I can do it.

And UCB formwork system 100 with a moving formwork according to the present invention includes a moving formwork 170 installed to support the other side of the left and right direction of the segment about the bottom formwork 130. That is, the moving formwork 170 is located on the opposite side of the stationary formwork 110 to support the concrete poured in the segment, as shown in Figure 8a, the first primary segment (S1) is produced The formwork 172 is made of steel formwork having the same structure as the stationary formwork 110, but when fabricating the next concrete segment in which the first segment S1 is made, one side of the preceding segment moves the trailing segment. Formwork 170 will act.

In such a case, a release agent is applied to the concrete side of the preceding segment constituting the moving formwork 170, so that when demolding the trailing segment, the separation between the concrete materials is performed smoothly.

And UCB formwork system 100 with a moving formwork according to the present invention extends from the upper end of the fixed formwork 110 and the side formwork 150 to the center of each segment to form an inner formwork (the upper inner surface of the segment ( 180). As shown in FIG. 5, the inner formwork 180 maintains its shape so that the concrete segment produced by the present invention has a concave upper surface in cross section. The inner formwork 180 is connected to the stationary formwork 110 and the side formwork 150 through a plurality of connecting rods 182.

In addition, the UCB formwork system 100 with a moving formwork according to the present invention includes a trolley 200 which is movable from side to side on a rail 190 horizontally installed horizontally on the lower side of the bottom formwork 130. As shown in FIGS. 3 and 4A and 4B, the trolley 200 is moved on a horizontally installed rail 190, and the pedestal, formwork, and segments are mounted thereon and moved to the left and right.

To this end, the trolley 200 has a flat body 210 made of a structure, and is provided with four wheels 214 on both sides of the body 210 so as to be rotatable and movable on the rail 190. The upper portion of the 210 is provided with a plurality of hydraulic cylinder jack 216 and a plurality of manual screw jack 218 adjacent to the four corners.

The hydraulic cylinder jack 216 can be operated by the operator to lift the pedestal 142 mounted thereon upwards, the manual screw jack 218 can adjust the height of the pedestal 142 placed thereon.

That is, the pedestal 142 placed on the trolley 200 has its lower surface supported and placed on the upper end of the manual screw jack 218, and the operator adjusts the pedestal 142 by adjusting the manual screw jack 218. ) Height can be adjusted. Meanwhile, the hydraulic cylinder jack 216 can lift the pedestal 142 placed on the manual screw jack 218 to the upper side. When the operator raises the hydraulic cylinder jack 216, the hydraulic cylinder jack 216 is placed on the manual screw jack 218. The pedestal 142 can be lifted up, and when the hydraulic cylinder jack 216 is lowered, the pedestal 142 can be placed on the upper portion of the manual screw jack 218.

And UCB formwork system 100 with a moving formwork according to the present invention includes a primary formwork 172 and a final formwork (not shown) for producing the primary segment (S1) and the final segment (Se). That is, the concrete segment manufactured according to the present invention is assembled into a bridge B as shown in FIGS. 7A and 7B, and such a bridge B is gradually directed to the right side from the leftmost primary segment S1. It proceeds to the primary segment S2 and the tertiary segment S3 and is assembled on-site into the rightmost final segment Se with a plurality of intermediate segments Sm.

In this structure, the primary segment (S1) and the final segment (Se) are each made of a thick thickness of the bottom surface of the structure of the bridge (B), to produce such a primary segment (S1) and the final segment (Se) This requires a primary formwork 172 and a final formwork (not shown) having a structure different from that of the intermediate segment Sm, such as secondary and tertiary segments S2 and S3.

That is, as shown in Figure 4a, the primary segment (S1), the bottom formwork 130a is smaller than the bottom formwork 130 of the intermediate segment (Sm), the concrete is made in a position where the height is low . In addition, although the final formwork (not shown) is not shown, the bottom formwork (not shown) is smaller than the bottom formwork 130 of the intermediate segment Sm and has a lower height, such as the primary segment S1. Concrete pouring takes place at

In addition, the UCB formwork system 100 having a mobile formwork according to the present invention, as shown in Figure 8a for the production of the primary segment (S1) the fixed formwork 110 is the first formwork 112 and the second As shown in FIG. 7A, the inclined plate 230 is mounted between the dies 114 to form the inclined surface S1a at the edge of the primary segment S1.

In addition, although not shown for the final segment (Se), an inclined plate (not shown) is mounted between the bottom formwork 130 and the moving formwork 170 to form a slope (Sea) at the corner of the final segment (Se). It may be.

And UCB formwork system 100 with a moving formwork according to the present invention includes a cradle 250 for moving the completed segment to a separate place, such a cradle 250 is 3, 4a And as shown in Figure 8a, located on the rail 190 on the opposite side of the fixed formwork 110, the fabricated segments thereon from the primary segment (S1) to the final segment (Se) in turn After mounting, it is carried out using a separate crane (not shown).

It will be described step by step for a method for manufacturing a channel bridge (CHANNEL BRIDGE) segment through the UCB formwork system 100 with a mobile formwork according to the present invention configured as described above.

First, the bottom formwork 130, the fixed formwork 110 located on one side in the left and right direction of the bottom formwork 130, the primary formwork 172 installed on the left and right side of the bottom formwork 130, the bottom formwork 130 The first step (S1) is made by using the side formwork 150 and the inner formwork 180 in the front and rear direction of the).

Step of manufacturing such a primary segment (S1), as shown in Figure 8a, put the pedestal 142 on the upper portion of the support frame 140, install the bottom formwork 130 thereon, then the bottom The formwork 130 is connected to match the one side edge to the second formwork 114 of the stationary formwork 110. And the primary formwork 172 to install a steel formwork similar to the stationary formwork 110, install a slope plate 230 between the first formwork 112 and the second formwork 114 of the stationary formwork 110 Release.

Then, the side formwork 150 is mounted on both sides in the front-rear direction of the bottom formwork 130a, and the inner formwork 180 is mounted as shown in FIG. 5 so as to face the bottom formwork 130a.

In this state, the reinforcement in the interior of the formwork, and when the concrete is poured into the space between the connecting rod 182 of the inner formwork 180, the formwork bottom 130a, fixed formwork 110, primary formwork 172, Concrete is poured into the inner space formed by the side formwork 150 and the inner formwork 180, and is cured as a primary segment S1. In this curing step, steam curing is performed so that early curing is achieved.

In addition, after the curing of the primary segment (S1) in this way, the primary segment (S1) is moved from the support frame 140, in this case the primary formwork 172 and the fixed formwork (110) made of iron. Is separated from the primary segment (S1), and moves the bogie 200 to the lower side of the support frame 140 to position.

And when operating a plurality of hydraulic cylinder jack 216 provided in the trolley 200, as shown in FIG. 5, the hydraulic cylinder jack 216 is raised to the base 142, the bottom raised on the support frame 140, bottom The formwork 130a, the side formwork 150, the inner formwork 180 and the primary segment S1 are lifted from the support frame 140. In this case, the height lifted by the trolley 200 from the support frame 140 may be such that the pedestal 142 can be pulled out of the support frame 140 without being caught.

In this state, the next step is to move the primary segment (S1) to the trolley 200 to move away from the fixed formwork (110).

In this step, the bogie 200 lifts the fixed formwork by lifting the pedestal 142, the bottom formwork 130a, the side formwork 150, the inner formwork 180 and the primary segment S1 from the support frame 140 ( 110 to move away from the stop. In addition, in this state, the inner formwork 180 and the side formwork 150 of the primary segment S1 are separated and demolded, respectively, on the bogie 200, the pedestal 142, the bottom formwork 130a and the primary segment ( S1) leave only.

And then there is a step of producing a secondary segment (S2) formwork, which is installed on the side of the fixed formwork 110, the bottom formwork 130 and the side formwork 150 for the secondary segment.

To this end, a new pedestal 142 is placed on the support frame 140, and the bottom formwork 130 for the secondary segment is installed thereon, and the side formwork 150 is disposed on both front and rear sides of the bottom formwork 130, respectively. And install the inner formwork 180 for the secondary segment.

In addition, in this state, if the primary segment (S1) is moved to the bottom formwork 130 side and one side is in close contact with the bottom formwork 130, one side of the primary segment (S1) is a moving formwork for the secondary segment (170) )

In this case, the bottom formwork 130 for the secondary segment is located in a state slightly higher than the bottom formwork 130a for the primary segment S1, as shown in FIG. 8B, and one side of the primary segment S1. The face is positioned opposite from the stationary formwork 110, and each of these formwork is applied to the release agent so that the separation between the concrete after the casting of the secondary segment concrete is good.

In this state, the reinforcement is reinforced, and the concrete for the secondary segment is poured to produce the secondary segment (S2). In addition, after the same as the early curing through the steam curing, the moving formwork 170 of the primary segment (S1) using the trolley 200 is separated from the secondary segment (S2) and then moved to the cradle 250 side. By using a crane (not shown), the pedestal 142 and the bottom formwork 130a and the primary segment S1 for the primary segment S1 are placed on the cradle 250, and the bogie 200 is supported again. The lower side of the frame 140 is moved.

Then, the step of moving the secondary segment (S2) to the bogie 200 to move away from the fixed formwork 110, which is provided in the bogie 200 as in the case of the movement of the primary segment (S1) When the hydraulic cylinder jack 216 is operated, the hydraulic cylinder jack 216 is raised to support the secondary segment pedestal 142, the bottom formwork 130, the side formwork 150, placed on the support frame 140, The inner formwork 180 and the secondary segment S2 are lifted from the support frame 140. In this case, the fixed formwork 110 is fixed at the same position as in the case of the primary segment S1, and when the pedestal 142 is raised to escape without being caught by the support frame 140, the secondary segment S2 is removed. Move to the cradle 250 direction and then stop.

In addition, in this state, the inner formwork 180 and the side formwork 150 of the secondary segment S2 are separated and demolded, respectively, on the bogie 200, the secondary segment pedestal 142, the bottom formwork 130 and Only the secondary segment S2 remains.

And then, a step of manufacturing the third segment (S3) formwork is made, which is the same as the process of installing the formwork for the secondary segment.

That is, newly installed the bottom formwork 130 and the side formwork 150 for the tertiary segment (S3) on one side of the fixed formwork 110, and moves the secondary segment (S2) to the fixed formwork (110) side One side is supported by the moving formwork 170 of the tertiary segment S3 and a step of manufacturing the tertiary segment S3 is made.

Step of manufacturing the tertiary segment (S3) as shown in Figure 8c, a new pedestal 142 on the support frame 140, the bottom formwork 130 for the tertiary segment (S3) thereon ), And then the side formwork 150 is installed on each of the front and rear sides of the bottom formwork 130, and the inner formwork 180 for the tertiary segment S3 is also installed. In this state, if the secondary segment (S2) is moved to the fixed formwork (110) side and the one side close to the bottom formwork 130 for the tertiary segment (S3), one side of the concrete of the secondary segment (S2) It becomes the moving formwork 170 for the tertiary segment S3.

In this case, the bottom formwork 130 for the tertiary segment S3 is located at the same height as the bottom formwork 130 for the secondary segment, and one side of the secondary segment S2 is for the tertiary segment S3. It is placed on the extension part 132 of the bottom formwork 130, and it adheres so that there will be no leakage of concrete during concrete placement of the tertiary segment S3, and the manufacturing tolerance between the secondary segment S2 and the tertiary segment S3 is Is removed.

In addition, the release form is applied to the moving formwork 170 for manufacturing the tertiary segment (S3) so that the peeling between the concrete is made good after pouring the tertiary segment (S3). In this state, the reinforcement is reinforced and the concrete for the tertiary segment (S3) is poured to produce the tertiary segment (S3).

In addition, after the same as the early curing through the steam curing, the moving formwork 170 of the secondary segment (S2) using the trolley 200 is separated from the tertiary segment (S3) and moved to the cradle 250 side, the cradle The base 142, the bottom formwork 130 for the secondary segment, and the secondary segment S2 are placed on the 250, and the bogie 200 is moved to the lower side of the support frame 140 again.

In the manufacturing method of UCB using the moving formwork according to the present invention, a plurality of segments are manufactured by a match cast method by repeating the above processes until the final segment Se of the target bridge B is produced.

On the other hand, if you want to manufacture the final segment (Se), the bottom formwork (not shown) for the final segment (Se) is lower than that of the bottom formwork 130 of the segment preceding it, and also the final segment (Se) An inclined surface (not shown) may be mounted between the bottom surface formwork (not shown) and the moving formwork 170 of the preceding segment to form an inclined surface Sea at an edge of the final segment Se.

UCB manufacturing method using a mobile formwork according to the present invention is to produce the precast segment members for the channel bridge through this process, the bottom formwork 130, the side formwork 150, the fixed formwork 110, the inner formwork By varying the size of the 180 and the moving formwork 170, the U-shaped or H-shaped segments S of various sizes as shown in FIGS. 9A, 9B, 9C, 9D and 9E can be manufactured.

As described above, according to the UCB formwork system 100 and the UCB fabrication method using the same according to the present invention, a trailing segment is formed on one side of a previously manufactured segment in the process of manufacturing a U-shaped or H-shaped segment (S). A plurality of segments (S) are produced through the match cast fabrication of the leading and trailing segments by acting as a moving formwork supporting the other side of the left and right direction.

Therefore, it is possible to fundamentally prevent the occurrence of manufacturing tolerances between the leading and trailing segments, so that perfect segment assembly is possible in the field, and smooth assembly and installation work in the bridge (B) installation site can greatly improve the productivity of the bridge installation work. Can be.

And the present invention in the formwork installation work required for U-type or H-type concrete segment (S) one side of the segment using a fixed formwork 110, the other using a moving formwork 170, the moving formwork 170 ) By using one side of the pre-prepared concrete segment, just assembling a new bottom formwork 130 and the side formwork 150 for the production of the segment (S). Therefore, by simplifying the formwork assembly installation process for the segment production it is also possible to greatly improve the work productivity of the segment production.

Although the present invention has been described in detail with reference to the accompanying drawings, the present invention is not limited to such a specific structure. Those skilled in the art will be able to variously modify or change the embodiments of the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. Nevertheless, it will be apparent that all such modifications or design modifications to such simple embodiments will clearly fall within the scope of the present invention.

1A is a perspective view showing an installation state of a channel bridge using a U-shaped segment according to the prior art;

1B is a cross-sectional view of a U-shaped segment according to the prior art;

Figure 2a is a perspective view of the H-shaped segment of the channel bridge according to the prior art from the top side;

Figure 2b is a perspective view showing the H-shaped segment of the channel bridge according to the prior art from the lower side;

3 is a plan view of a UCB formwork system with moving formwork in accordance with the present invention;

4A is a side view of a UCB formwork system with moving formwork in accordance with the present invention;

Figure 4b is a side view showing in detail the manufacturing process of the primary and secondary segments of the UCB formwork system with a moving formwork according to the present invention;

5 is a cross-sectional view along the line A-A of FIG. 4B;

Figure 6a is a plan view showing a bogie equipped with the present invention;

Figure 6b is a side view showing the bogie provided with the present invention;

7A is a side view of a bridge composed of segments fabricated using a moving formwork according to the present invention;

FIG. 7B is a cross-sectional view taken along the line B-B in FIG. 7A; FIG.

Figure 8a is a side view showing a process for producing a primary segment in the UCB manufacturing method using a moving formwork according to the present invention;

Figure 8b is a side view showing a process for producing a secondary segment in the UCB manufacturing method using a moving formwork according to the present invention;

Figure 8c is a side view showing a process for producing a tertiary segment in the UCB manufacturing method using a moving formwork according to the present invention;

Figures 9a, 9b, 9c, 9d and 9e are cross-sectional views showing segments of various specifications produced by the present invention.

Description of the Related Art

1 ..... Flange 2 ..... Parapet Wall

10 .... Precast segment member 11 .... Side beam

12 .... deck slab 13 .... PC liner

14 .... Transverse PC Liner 15 .... Packing Layer

30 ... H type segment

100. UCB formwork system with moving formwork according to the invention

110 ... fixed formwork 112 .... 1st formwork

112a ... horizontal jack 114 ... second die

114a ... vertical jack 120 ... work frame

122 .... Walkway 130 .... Bottom Formwork

132 .... extension 140 .... support frame

142 .... Pedestal 144 .... Vertical Jack

150 .... side formwork 160 .... working frame

162 .... Walkway 170 .... Moving Formwork

172 .... Primary formwork 180 ... Inner formwork

190 .... rail 200 .... bogie

210 .... body 214 .... wheels

216 .... hydraulic cylinder jack 218 .... manual screw jack

230 .... Slope 250 .... Cradle

B ... Bridge S ... U or H segment

S1 .... Primary Segment S2 .... Secondary Segment

S3 .... tertiary segment Sm .... middle segment

Se .... Final Segment S1a, Sea ... Slope

Claims (13)

In a formwork system for producing concrete segments for channel bridges, A fixed formwork installed to support one side of the segment and one side of a lower edge of the segment; A bottom formwork supporting a bottom surface of the segment at one side of the stationary formwork; Side molds respectively installed to support both sides of the segment in the front and rear directions; A moving formwork installed to support the left and right lateral sides of the segment about the bottom formwork; An inner formwork extending from the top of the stationary formwork and the side formwork to the center of the segment respectively to form an upper inner surface of the segment; And Supporting the left and right directions of the trailing segment to one side of the previously manufactured segment, including; a bogie for moving left and right on the horizontally installed rail in the horizontal direction in the lower side of the bottom formwork; A type channel bridge formwork system with moving formwork, characterized in that it acts as a moving formwork to produce match casts of leading and trailing segments. The method of claim 1, wherein the fixed formwork comprises a first formwork fixed vertically and a second formwork which is horizontally fixed to the lower end of the first formwork in the form of "", the first formwork is through a horizontal jack A type channel bridge formwork system with moving formwork, wherein the second formwork is arranged to be horizontally adjustable relative to the work frame, and the second formwork is height adjustable from the floor using a vertical jack provided at the bottom thereof. The method of claim 1, wherein the bottom formwork is characterized in that the one side edge is adjacent to the fixed formwork on one side, the upper side of the other side is formed with an extension for supporting the side of the trailing segment is placed one side of the preceding segment. Type channel bridge formwork system with moving formwork. The movable formwork according to claim 3, further comprising a support frame under the bottom formwork, wherein a pedestal is mounted on the support frame, and the pedestal is adjustable in height by a vertical jack mounted to the support frame. Type channel bridge formwork system with. 2. The type channel bridge formwork system as recited in claim 1 wherein said bogie comprises a hydraulic jack on its upper side to lift and move said pedestal, formwork, and segments upwards. The method according to claim 1, further comprising a primary formwork and a final formwork for producing the primary segment and the final segment, wherein the primary formwork and the final formwork are smaller in width than the bottom formwork of the intermediate segment. Type channel bridge formwork system with moving formwork, characterized in that the concrete is poured in a low position. According to claim 2, wherein the fixed formwork is characterized in that the inclined surface for forming the primary segment and the final segment between the first formwork and the second formwork to form an inclined surface on the primary segment and the final segment Type channel bridge formwork system with formwork. The channel according to claim 1, further comprising a cradle for moving the finished segment to a separate place, wherein the cradle is located on a rail opposite the stationary formwork. Bridge formwork system. 2. The type channel bridge formwork system as set forth in claim 1, further comprising a work frame provided with a walkway around the stationary formwork and the side formwork. 10. The system of claim 9 wherein the stationary formwork is movable horizontally through a horizontal jack between the work frame and the work frame. In the method of manufacturing a type channel bridge using a moving formwork, A bottom segment, a fixed formwork located on the left and right sides of the bottom formwork, a primary formwork installed on the left and right sides of the bottom formwork, the side form in the front and rear direction of the bottom formwork and the inner formwork to produce the primary segment step; Moving the primary segment in a bogie away from the stationary formwork; Installing the bottom formwork and the side formwork for the secondary segment on one side of the fixed formwork, and moving the primary segment to the fixed formwork side to support the one side as the moving formwork for the secondary segment and manufacturing the secondary segment ; Moving the secondary segment into the bogie to move away from the stationary formwork; Installing the bottom formwork and the side formwork for the third segment on one side of the fixed formwork, and moving the secondary segment to the fixed formwork side to support the one side as the moving formwork of the tertiary segment and manufacturing the third segment ; And And repeating the above steps until a final segment of a desired bridge length is produced, and manufacturing a plurality of segments in a match cast method. 12. The method of claim 11, wherein the manufacturing of the primary segment and the final segment further comprises lowering the height of the bottom formwork. The method of claim 11, further comprising the step of applying a concrete release material to the moving die side of the segment.

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