KR101311327B1 - Method for field manufacturing curvilineal beam structure - Google Patents

Abstract

Instead of manufacturing and transporting the curved beam in the mold shop, by using the side mold jack to manufacture the curved beam directly into the PSC beam, it is possible to lower the construction cost compared to manufacturing the curved beam from the conventional steel beam, It is easy to maintain, and by adjusting the side mold jack directly in the field, the curved beam can be easily formed into a curved shape, and a method for manufacturing a curved beam that can shorten the construction time is provided. A method for producing a curved beam in situ comprises: a) dividing a curved beam to be manufactured in situ into a plurality of adjusting blocks; b) aligning the mold jack supports, side molds, side intermediate molds and side mold jacks to corresponding adjustment blocks; c) adjusting the side mold jacks to extrude and press-fit the side molds in corresponding adjustment blocks so that the beams are curved; d) connecting the adjusting block and the next adjusting block to each other until the adjusting block becomes the final adjusting block; e) if the adjusting block is the final adjusting block, then pouring concrete into the mold; And f) processing the end mold to complete the entire curved beam, wherein the curved beam is a prestressed concrete beam.

Description

FIELD OF MANUFACTURING CURVED BEAM {METHOD FOR FIELD MANUFACTURING CURVILINEAL BEAM STRUCTURE}

The present invention relates to a field beam manufacturing method of a curved beam, and more particularly, to a field beam manufacturing method for producing a curved beam directly at the beam construction site.

A monorail is a means of transporting a vehicle over and over a single lane to move passengers and cargo. A monorail is a new type of rail, along with small trains, rail buses and maglev trains. It is emerging as a city transportation system and belongs to the category of light rail, which is a concept opposite to a heavy subway such as an existing subway.

These monorails have excellent transport capacity and low construction and labor costs due to the intermediate transportation capacity between subways and buses. In particular, the monorail has no noise and vibration because it runs on rubber wheels. Has the advantage. In addition, it is possible to create a three-dimensional and beautiful urban landscape by increasing the land use, which is already used in Europe and Japan.

This monorail structure features a structure that does not require an upper slab because a wheel that runs as a single beam is driven over the beam. In addition, such a monorail is a transportation method that can be applied to a city center with a high population density and a city section with a narrow road width and a dense building. At this time, the monorail requires a precise construction because the structure is a direct track. In other words, the structure of the monorail is simple in appearance, but since the vehicle runs directly on the structure, a structure having a smooth and precisely matched surface must be constructed and manufactured and constructed in detail.

On the other hand, the beam construction mold (form) according to the prior art is fixed to the left and right sides of the mold on the pier and the foundation concrete structure in the structure of a single plate body, and the concrete is poured into the interior to construct the beam.

The mold for manufacturing a conventional beam is composed of a single plate body in order to adjust the height of the beam to be constructed, the height of the mold plate body is provided with various heights to fix the installation of the corresponding mold plate body according to the height of the beam and the horizontal adjustment is inconvenient In addition, there is a disadvantage in that the cost of material management of the mold plate body increases, and also, in the case of curved beams, different types of plate bodies having different heights of the mold plate bodies installed on the left and right sides for tilt adjustment (gradient) by centrifugal force are installed. And because the construction time delayed the construction time due to the mold adjustment, the workability and workability is lowered, there was a problem that the maintenance cost increases.

FIG. 1 is a diagram illustrating a general monorail vehicle and a beam, and FIGS. 2A and 2B are diagrams illustrating a general PSC beam and a strong beam, respectively.

Referring to FIG. 1, the monorail vehicle 10 is driven on a beam 20, where the beam 20 may be connected to a straight beam (straight beam) 20a and a curved beam (curve beam) 20b. have.

2A and 2B, in the case of the beam according to the related art, the beam may be made of a PSC (Prestressed Concrete) beam 40 or a steel beam 50.

As shown in FIG. 2A, the PSC beam 40 has good economical efficiency due to standardization and simplification, and has good driving and stability characteristics, and is generally applied to a general section or a quasi section of 30 m or less. The PSC beam 40 is a concrete produced by the prestressed concrete method, and uses a high-strength steel wire instead of the reinforcement of the reinforced concrete to give a tensile force in advance thereto.

In addition, as shown in Figure 2b, the steel beam 50 is advantageous in the application of the long span, sharp curve portion, and has the characteristics of good aesthetics and openness, it is usually in the intersection or sharp curve section that requires a long distance of 30m or more Apply.

In other words, in the case of the straight beam according to the prior art, it can be easily constructed with the PSC beam 40 on the pier 30, but in the case of the curved beam, the curve with the strong beam 50 on the pier 30 To form. In particular, in the case of the steel beam 50, which is a grid structure connected by horizontal beams and horizontal brazing, there is a problem that the construction cost is expensive and maintenance is disadvantageous.

1) Republic of Korea Patent No. 10-0639477 (filed date: October 09, 2000), the title of the invention: "Support structure for the elevated rail vehicle guideway" 2) Republic of Korea Utility Model Registration No. 20-0279222 (Application Date: March 02, 2002), the title of the invention: "Pre-stressed curved box girder formwork for ILM" 3) Republic of Korea Patent Publication No. 2010-0083264 (published: July 22, 2010), the title of the invention: "Variable formwork structure for light rail running rail construction" 4) Republic of Korea Patent No. 10-0867490 (filed March 11, 2008), the name of the invention: "structure support device" 5) Republic of Korea Patent Publication No. 2006-0031833 (published: April 13, 2006), the title of the invention: "Information rail of monorail type carriage" 6) Republic of Korea Patent No. 10-0600642 (filed February 03, 2004), the title of the invention: "monorail system" 7) Republic of Korea Patent No. 10-0999660 (application date: January 13, 2009), the title of the invention: "Multi-span precast member with workability improvement function"

The technical problem to be solved by the present invention for solving the above-described problems, without the need to manufacture and transport the curved beam in the mold shop, using the side mold jack in the field can be directly manufactured curve curve PSC beam in the field It is to provide a method of manufacturing the beam on-site.

Another technical problem to be achieved by the present invention is to provide a method for manufacturing a curved beam that can easily form a curved beam in a curved form by adjusting the side mold jack directly in the field, and can shorten the construction time. .

As a means for achieving the above-described technical problem, in the field manufacturing method of the curved beam according to the present invention, in the method for manufacturing the curved beam in the field, a) to divide the curved beam to be manufactured in the field into a plurality of adjustment blocks Making; b) aligning the mold jack supports, side molds, side intermediate molds and side mold jacks to corresponding adjustment blocks; c) adjusting said side mold jacks to extrude and press-fit said side molds in said corresponding adjustment block to form said beams in a curved shape; d) connecting the steering block and the next steering block to each other until the steering block becomes a final steering block; e) if the adjustment block is a final adjustment block, then pouring concrete into a mold; And f) processing the end mold to complete the entire curved beam, wherein the curved beam is a prestressed concrete beam.

Here, the steps b) to d) are repeatedly performed until the final adjustment block.

Here, the mold jack support and the side mold jack in the corresponding adjustment block of step b) is arranged not parallel to the side mold, and in step c) the side mold jack can be adjusted in the inclined direction with the side mold. .

Here, in the corresponding adjustment block of step b), the mold jack support and the side mold jack are arranged to be parallel to the side mold at equal intervals, and in step c) the side mold jack is to be adjusted in a direction perpendicular to the side mold. Can be.

Here, the side mold jack of step c) extrudes and presses the side mold through the first and second hinges capable of height and inclination adjustment at the side of the side mold to form a curved beam, It is characterized by transmitting the horizontal load.

The side mold jack may include: a first hinge portion hinged to the mold jack support and capable of adjusting height and inclination; And a second hinge extending from the first hinge and hinged to the side mold and capable of height and inclination adjustment.

Here, the side intermediate mold of step b) is a mold for forming the concave portion of the curved beam side, and is formed to be attached to the inside of the side mold, the side intermediate mold using a slot hole formed on the side mold Position can be adjusted.

Here, before the step e) is characterized in that chamfering the upper edge both sides and the lower edge both sides of the curved beam.

Here, the end mold of step f) is characterized in that formed on both ends of the curved beam to adjust the geometric shape and the beam length of the curved beam end surface, respectively.

According to the present invention, without having to manufacture and transport the curved beam in the mold shop, by using the side mold jack to manufacture the curved beam directly to the PSC beam in the field, compared to manufacturing the curved beam from the conventional steel beam Can be lowered and maintenance is easy.

According to the present invention, by directly adjusting the side mold jack in the field, the curved beam can be easily formed into a curved shape, and construction time can be shortened.

1 is a diagram illustrating a general monorail vehicle and a beam.
2A and 2B are diagrams illustrating a general PSC beam and a strong beam, respectively.
3 is a flowchart illustrating a process of manufacturing and constructing a curved beam in a mold fabrication site.
4 is a flowchart illustrating a method of manufacturing a curved beam according to an exemplary embodiment of the present invention.
5 is a view for schematically explaining the principle of the curve beam manufacturing method in the field manufacturing method of the curved beam according to an embodiment of the present invention.
6 is a view for schematically explaining the principle of the curve beam manufacturing method in the field manufacturing method of the curved beam according to another embodiment of the present invention.
7 is a vertical sectional view of the manufacturing apparatus used in the field production method of the curved beam according to an embodiment of the present invention.
8A and 8B are a plan view and a side view, respectively, of the side mold jack in the method of manufacturing a curved beam according to an embodiment of the present invention.
9A and 9B are photographs illustrating a first hinge portion and a second hinge portion of a side mold jack, respectively, in a method of manufacturing a curved beam according to an embodiment of the present invention.
10 is a view for explaining in detail the end mold in the field production method of the curved beam according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

Before describing a method for manufacturing a curved beam according to an embodiment of the present invention, a process of manufacturing and constructing a curved beam in a mold fabrication site will be described. That is, referring to FIG. 3, a process of manufacturing and constructing a curved beam in a mold fabrication site will be described, and a method of manufacturing a curved beam according to an embodiment of the present invention will be described with reference to FIG. 4.

3 is a flowchart illustrating a process of manufacturing and constructing a curved beam in a mold fabrication site.

Referring to FIG. 3, a process of manufacturing and constructing a curved beam in a mold fabrication workshop is as follows. First, as a prerequisite for precise assembly of the beam, assembling the base and the anchor case to construct a coping ( S101 ). Specifically, it is necessary to use the base to make a base material as a subsidiary material for placing the anchor case in the correct position, and to set the anchor case in the correct position. In addition, in order to assemble the base body is installed an anchor case which is a subsidiary material buried in the coping. At this time, the correct installation of the anchor case enables the precise construction of the beam, and enables fine adjustment in the structure of the anchor case.

Next, the site status to install the beam is surveyed ( S102 ), and the mold in the mold chamber (molding apparatus) to manufacture the beam is cleaned and adjusted ( S103 ).

Next, assembling the beam support and the reinforcing bar ( S104 ), and after assembly it is detected ( S105 ). For example, an internal mold is produced by fabricating a wooden frame, coating a tin plate, and then assembling separately. Styrofoam is inserted into such an inner mold, and the structure should be free from deformation and prevent deformation of the inner mold during concrete pouring. In addition, the reinforcing bars are assembled to prevent styrofoam damage during the precise assembly and welding of each part. Specifically, the reinforcing bars are assembled by assembling the bridge bearing, assembling the end mold, and then assembling the inner mold. This is assembled.

Next, the bearing, the rebar, etc. are mounted on the trolley in an assembled state, and the trolley is moved to the mold chamber ( S106 ).

Next, to adjust the side mold jack to produce a curved beam ( S107 ). This side mold jack will be described later.

Next, concrete is poured into the mold ( S108 ) and the finisher process is performed ( S109 ).

Next, the first and second steam curing the concrete is poured beam ( S110 ). Specifically, when concrete is poured, the concrete poured in the mold chamber is primarily steam cured, and after the early demolding strength is developed, the concrete is moved to the curing chamber and steam cured in the curing chamber secondly. Thereafter, the completed beam is detected ( S111 ).

Next, the beam is first tensioned in the bogie ( S112 ), and then the beam is transported to the yard ( S113 ).

Next, after placing the beam on the yard, the secondary field is carried out and the detection is performed ( S114 ), and then the beam is loaded ( S115 ) to transport the beam to the site ( S116 ). Thereafter, the beam construction is completed by mounting and assembling the beam ( S117 ).

On the other hand, Figure 4 is a flow chart of the operation of the field beam manufacturing method according to an embodiment of the present invention.

Referring to Figure 4, the field beam manufacturing method according to an embodiment of the present invention, first, as a prerequisite for the precise assembly of the beam, assembling the base and the anchor case to construct the coping ( S201 ).

Next, survey the current state of the site to install the beam ( S202 ), and then divides the curved beam to be manufactured in the field into a plurality of adjustment blocks ( S203 ). At this time, the division into the adjustment block may be arbitrarily changed according to the overall beam size.

Next, the mold jack support, the side mold, the side intermediate mold and the side mold jack are aligned to the corresponding adjustment block ( S204 ). At this time, the mold jack support and the side mold jack in the corresponding adjustment block is arranged so as not to be parallel to the side mold, the side mold jack can be adjusted in the inclined direction with the side mold. Further, in the corresponding adjusting block, the mold jack support and the side mold jack are arranged to be parallel to the side mold at equal intervals, and the side mold jack can be adjusted in a direction perpendicular to the side mold. In addition, the side intermediate mold is a mold for forming a concave portion of the curved beam side, and is formed to be attached to the inside of the side mold, the side intermediate mold is to be adjusted by using a slot hole formed on the side mold Can be.

Next, the side mold jack is adjusted to extrude and press-fit the side mold in the corresponding adjusting block so as to form the beam in a curved shape ( S205 ).

Next, it is checked whether the adjusting block is the last adjusting block ( S206 ), and if it is not the last adjusting block, the adjusting block and the next adjusting block are connected to each other ( S207 ). That is, the steps S204 to S207 are repeatedly performed until the final adjustment block.

Next, concrete is poured into the side mold in the said adjustment block ( S208 ). At this time, it is preferable to chamfer both sides of the upper edge and the lower edge of the curved beam before placing the concrete.

Next, the end mold is processed to complete the entire curved beam ( S209 ), and subsequently, to mount and assemble the curved beam ( S210 ). At this time, the completed curved beam becomes a prestressed concrete beam. The end molds are also formed at both ends of the curved beam to adjust the geometry and beam length of the curved beam end surface.

In the field production method of the curved beam according to an embodiment of the present invention, compared to the method for producing a curved beam in the above-described mold manufacturing site, it is possible to manufacture the curved beam directly in the field rather than manufacturing in the mold manufacturing site This eliminates the need to produce and transport curved beams in the mold shop. By using side mold jacks, the curved beams can be directly manufactured on the site, reducing construction costs compared to conventional curved beams. Maintenance is easy. In addition, by directly adjusting the side mold jack in the field, the curved beam can be easily formed into a curved shape, and construction time can be shortened.

On the other hand, Figure 5 is a view for schematically explaining the principle of the curve beam manufacturing method in the field beam manufacturing method according to an embodiment of the present invention, Figure 6 is a field beam manufacturing method according to another embodiment of the present invention A diagram for schematically explaining a principle of manufacturing a curved beam.

5, the curved beam 300 in the field manufacturing method of the curved beam according to an embodiment of the present invention, the mold jack support 110 and the side mold jack 130 in the control block is the side mold ( It is arranged so as not to be parallel to the 150, the side mold jack 130 may be adjusted in the inclined direction with the side mold 150.

6, the curved beam 300 in the field manufacturing method of the curved beam according to an embodiment of the present invention, the mold jack support 110b and the side mold jack 130b in the corresponding adjustment block is the side mold ( It is arranged to be parallel to the same interval 150, the side mold jack 130b may be adjusted in a direction perpendicular to the side mold 150. Accordingly, the side mold 150 may be press-fitted and extruded without adjusting the inclination of the side mold jack 130b.

On the other hand, Figure 7 is a vertical cross-sectional view of the manufacturing apparatus used in the field production method of the curved beam according to an embodiment of the present invention.

Referring to FIG. 7, the manufacturing apparatus 100 used in the field manufacturing method of the curved beam according to the embodiment of the present invention includes a mold jack support 110, a lower mold 120, a side mold jack 130, and a side surface. An intermediate mold 140, a side mold 150, an inner mold 160, an upper linear chamfer 170, and a lower linear angle mold 180, and as described below, the connection 190 and the end mold ( 210 may be further included.

The mold jack support 110 serves to support the side mold jack 130 when the side mold jack 130 is adjusted to extrude and press the side mold 150 to form a curved shape. In this case, as shown in FIG. 5, the mold jack support 110 and the side mold jack 130 are arranged not to be parallel to the side mold 150 in the corresponding adjustment block, and the side mold jack ( 130 may be adjusted in an inclined direction with the side mold 150. In addition, as shown in FIG. 6, the mold jack support 110b and the side mold jack 130b are arranged to be parallel to the side mold 150 at equal intervals in the corresponding adjustment block, and the side mold The jack 130b may be adjusted in a direction perpendicular to the side mold 150.

The lower mold 120 may be provided with, for example, a bridge support fixture as a mold for forming the lower surface of the beam 300.

The side mold jack 130 is a device for horizontal load transfer of concrete and beam shaping of a curve. When extruding and injecting the side mold 150, the first hinge portion and the second hinge can be easily adjusted. It may be provided. A plurality of side mold jacks 130 may be formed to penetrate through the mold jack support 110 to be in contact with the side mold 150. The first hinge portion and the second hinge portion will be described later with reference to FIGS. 8A and 8B.

Side intermediate mold 140 is a mold for forming the concave portion of the side of the curved beam 300, the trolley wire fixture is inserted. The side intermediate mold 140 may be attached to the inside of the side mold 150, and may be adjusted using a slot hole of the side mold 150.

The side mold 150 is a mold for forming the entire side of the curved beam 300, and becomes a mold of a curved shape by extruding and pressing the side mold jack 130.

The inner mold 160 is mounted on the lower mold 120, and a filling space is formed on the inner mold 160, and a filling material such as wood and styrofoam may be filled in the filling space. That is, in order to reduce the weight of the entire curved beam 300, the inner mold 160 may be formed in the curved beam 300, and a filler such as wood and styrofoam is filled in the inner mold 160. .

The upper linear chamfer plate 170 is a plate for forming the chamfered portion of the upper portion of the beam 300, the height can be adjusted by the slot hole.

The lower linear angle mold 180 is a mold for forming a chamfered portion under the beam 300 and also serves to prevent concrete leakage.

The connection unit 190 connects the adjusting block and the next adjusting block with each other until the adjusting block becomes a final adjusting block.

The end mold 210 is used to adjust the geometry and beam length of the curved beam 300 end surface. A detailed description of the end mold 210 will be described later with reference to FIG. 10.

On the other hand, Figures 8a and 8b are a plan view and a side view of the side mold jack in the field production method of the curved beam according to an embodiment of the present invention, respectively, Figures 9a and 9b are respectively the field of the curved beam according to an embodiment of the present invention It is a photograph which shows the 1st hinge part and the 2nd hinge part of a side mold jack in a manufacturing method.

8A and 8B, the side mold jack 130 in the apparatus for manufacturing a curved beam mold chamber according to an embodiment of the present invention is a device for horizontal load transfer of concrete and beam shaping of a curved line. It consists of a measuring scale, jack holder, and adjustable spanner. The side mold jack 130 may include a first hinge portion 131 and a second hinge portion 132 to facilitate height and inclination adjustment when extruding and pressing the side mold 150.

That is, the side mold jack 130 is a curved beam by extruding and pressing the side mold through the first and second hinge portions 131 and 132 that can be adjusted in height and inclination at the side of the side mold 150. It forms a mold and transmits the horizontal load of the poured concrete.

Referring to FIG. 9A, the first hinge part 131 of the side mold jack 130 may be hinged to the mold jack support 110 to adjust height and inclination. For example, the mold jack support may be used. Height and inclination may be adjusted in the spaces d1 and d2 in 110, and thus the side mold jack 130 may press and extrude the side mold 150 into a desired curved shape. In addition, referring to FIG. 9B, the second hinge portion 132 of the side mold jack 130 extends from the first hinge portion 131 to be hinged to the side mold 150 to adjust height and inclination. This is possible. At this time, an operator can precisely adjust extrusion and indentation according to the measurement scale.

On the other hand, Figure 10 is a view for explaining in detail the end mold in the field production method of the curved beam according to an embodiment of the present invention.

10, in the mold chamber manufacturing apparatus of the curved beam according to the embodiment of the present invention, the end mold 210 is used to adjust the geometric shape and the beam length of the end surface of the curved beam 300, an example For example, it may consist of an end mold plate, a finger joint mold, a position adjusting device, an angle adjusting device, and a support stand. Accordingly, the ends of the curved beam 300 formed by the end mold 210 can be easily connected and assembled with the ends of the other curved beam 300.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

100: curved beam (curved beam) manufacturing apparatus
110: Mold Jack Support
120: lower mold
130: side mold jack
140: side intermediate mold
150: side mold
160: inner mold
170: top linear chamfer plate
180: lower linear angle mold
190: connection portion
210: end mold
300: PSC curved beam (curved beam)

Claims (10)

In the method for manufacturing the curved beam in the field,
a) dividing the beam to be manufactured on site into a plurality of steering blocks;
b) aligning the mold jack supports, side molds, side intermediate molds and side mold jacks to corresponding adjustment blocks;
c) adjusting said side mold jacks to extrude and press-fit said side molds in said corresponding adjustment block to form said beams in a curved shape;
d) connecting the steering block and the next steering block to each other until the steering block becomes a final steering block;
e) if the adjustment block is a final adjustment block, then pouring concrete into a mold; And
f) processing the end mold to complete the entire curved beam, wherein the curved beam is a prestressed concrete beam,
And repeating steps b) to d) until the final adjustment block. delete The method of claim 1,
The mold jack support and the side mold jack in the corresponding adjustment block of step b) are arranged not parallel to the side mold, and in step c) the side mold jack is adjusted in an inclined direction with the side mold. Field production method of the curved beam. The method of claim 1,
The mold jack support and the side mold jack in the corresponding adjustment block of step b) are arranged to be parallel to the side mold at equal intervals, and in step c) the side mold jack is adjusted in a direction perpendicular to the side mold. Field production method of the curved beam characterized in that. The method of claim 1,
The side mold jack of step c) extrudes and presses the side mold through the first and second hinges capable of adjusting height and inclination at the side of the side mold to form a curved beam, and the horizontal load of the poured concrete. Field production method of the curved beam, characterized in that to deliver. The method of claim 5, wherein the side mold jack,
A first hinge portion hinged to the mold jack support and capable of adjusting height and inclination; And
And a second hinge portion extending from the first hinge portion and hinged to the side mold and capable of height and inclination adjustment. The method of claim 1,
The side intermediate mold of step b) is a mold for forming the concave portion of the curved beam side, the field beam manufacturing method of the curved beam, characterized in that formed to be attached to the inside of the side mold. The method of claim 7, wherein
And said side intermediate mold is adjusted in position using a slot hole formed on said side mold. The method of claim 1,
Method of manufacturing a curved beam, characterized in that to chamfer the upper edge both sides and the lower edge both sides of the curved beam before step e). The method of claim 1,
And the end mold of step f) is formed at both ends of the curved beam to adjust the geometry and beam length of the curved beam end surface, respectively.

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