KR200298104Y1 - Mobile form for forming concrete box on construction work - Google Patents

Abstract

The present invention discloses a mobile formwork for forming a concrete sphere designed as a quadrilateral box structure in the construction of roads, railways, culverts, and waterworks, sewerage, or geological works.

The present invention consists of an internal formwork 10 and an external formwork 20. The inner formwork 10 includes an inner support 11 attached to the inner side of the joint wall portion 3, an inner wall forming panel 12 mounted on the inner support 11, and an inner wall forming panel 12. Haunches forming panel 13 and upper slab bottom forming panel 14 connected integrally with the lower panel, lower joists 15 and a plurality of driving wheels 16 mounted on the lower end of the inner wall forming panel 12 ); The external formwork 20 includes an outer support 21 attached to the outer side of the joint wall portion 3, an outer wall forming panel 22 mounted on the outer support 21, and an outer wall forming panel 22. The horizontal member 23 mounted on the upper side of the panel, the upper panel member 25 mounted on the upper end of the inner wall forming panel 12 and rigidized with the horizontal member 23, and opposed to the upper panel of the upper panel member 25 Technical support, characterized in that consisting of a support bar (26) which is installed while being, a cradle (27) fixed to the support bar (26), and a plurality of driving wheels (28) mounted on the lower portion of the cradle (27). to provide.

Description

Mobile form for forming concrete box on construction work

The present invention relates to the formwork installed in the foundation and concrete construction of road and railway culverts, water, sewerage and complex construction joints, which are designed as quadrangular box-shaped structures, and in particular, it can support the formwork in the lower concrete construction. By providing internal and external formwork that can be repeatedly used while moving forward in the direction of work on the structural part, it not only realizes an economical construction method that shortens the construction cost and period, but also complete precision standard construction. The present invention relates to a movable formwork for concrete sphere molding designed in the form of a box to achieve this.

As is well known, the civil concrete structure in the form of a quadrangular box is a structure for underground construction of culverts of roads and railways, water and sewage passages, and joint holes in construction of complexes.

At present, in order to construct such a structure, after casting the discarded concrete, finishing the ground work, constructing the floor concrete first, and then joining the floor concrete, then placing the sidewall (including the lower haunt) and the top slab simultaneously Or it is customary to construct the top slab separately.

The formwork used at this time is constructed by relying on the support of wooden or steel panels made in consideration of the size and size of the designed concrete walls and slabs, etc. After this, the molds are removed and all the pieces are moved to the next section.

However, when constructing concrete structures in this way, there are various difficulties such as wasteful labor and time wasted in installing and dismantling the formwork.

In other words, the installation of a large number of supporting wood in order to install the formwork takes a lot of time and time to dismantle, as well as a lot of time, the formwork panel itself has a problem that the material is consumed in large quantities due to severe damage and long life.

In addition, in order to install the formwork experienced and skilled carpenter is necessary, there is a difficulty in securing the carpenter skilled workers delay the air, there was a problem that the construction cost is increased due to excessive labor costs.

Therefore, recently, in order to solve the problems of air and economics, the development of mobile formwork that can be re-installed by moving clouds to the next section without disassembling completely after completing construction on one section is being actively progressed.

As a representative of them, a formwork device such as Korean Patent Application Publication No. 2002-0005537 has been disclosed. The prior art lays a rail on a rail support provided on a foundation slab and an exterior of the foundation slab, and installs an interior and exterior formwork on the rail. To move the clouds.

Therefore, not only the installation of the rails but also precise construction of the formwork installed on the rail is required to be difficult and difficult to install, and the formwork is complicated, so that the installation cost is excessively consumed.

In addition, since the formwork is constructed to construct the lower slab, side wall, upper hull and upper slab in a batch after the foundation slab is first constructed, the concrete is not tightly filled in the lower haunt. There has been a problem of providing the cause of the under construction.

In other words, the conventional construction method as described above is to inject concrete from the top of the wall formwork, it was very difficult to be filled in tightly filled concrete injected from the top to the lower haunch.

Due to this, the haunting part, which is the most important part of the quadrangular box structure, becomes insufficiency, and even after repairing and reinforcing the formwork, the trace remains as an unrecoverable structural defect. There was a problem that acts as a major cause of the sharp decline in quality.

Accordingly, the present invention was devised to solve the problems of the prior art of collectively constructing the haunch part and the wall part after the construction of the floor concrete as described above, and the lower haunch part and the wall part part together when constructing the foundation slab. The concrete joint part is raised to the wall on the upper side of the haunch part, and the structural part that can be supported by placing the formwork used for the upper construction on the joint part is prepared in advance. By installing the inner and outer formwork that can be used, it prevents secondary construction work, and implements an economical construction method that shortens the construction cost and period, as well as a box form to achieve perfect precision standard construction. To provide a mobile formwork for concrete concrete design To have its purpose.

Another object of the present invention is to connect the inner and outer formwork in a flexible way as a whole, and to simplify the structure that does not require the rail and the rails for moving the formwork, the inner formwork is able to move the clouds on the upper surface of the foundation slab. In addition, the external formwork is to provide a mobile formwork for concrete concrete molding is designed in the form of a box that makes it possible to simplify the formwork installation and minimize the installation cost by allowing to move on the upper surface of the slab slab previously constructed.

1 is an installation state of a movable formwork according to an embodiment of the present invention

Figure 2 is a cross-sectional view showing the lower fixing portion of the movable formwork according to an embodiment of the present invention

Figure 3 is a state of installation of a mobile formwork according to another embodiment of the present invention

Figure 4 is a perspective view showing the upper structure of the external formwork in a mobile formwork according to an embodiment of the present invention

Figure 5 is a view showing a state demoulded to move the movable formwork according to an embodiment of the present invention

<Description of Symbols for Main Parts of Drawings>

1: Foundation slab 2: Lower haunch part 3: Joint wall part

4: wall 5: upper haunting unit 6: top slab

10: Inner die 11: Inner support 12: Inner wall forming panel

13: Panel for shaving 14: Panel for shaping 14a: Horizontal reinforcement

14b: bending guide portion 15: bottom long wire 15a: middle long wire

16: Drive wheel 16a: Wheel support 17a: Undercarriage

17b: Upper brace material 18: Vertical brace material (large) 18a: Height adjustment jack

19: Vertical support material (medium) 20: External formwork 21: Outer support

22: Panel for external wall molding 23: Horizontal material 25: Top long wire rod

25a: Medium length wire 26: Support bar 27: Cradle

27a: Connector 28: Drive wheel B: Bolt rod

N: Nut t: Turnbuckle

The present invention for achieving the above object is the foundation slab, the lower haunch and the joint wall part of the concrete sphere, which is designed as a quadrilateral box structure in road, railway culvert and water, sewage or joint construction, and then connected to the joint wall part. In constructing the inner formwork and the outer formwork for forming the wall, upper haunches and slab slabs,

The inner formwork includes an inner support that is horizontally attached to an inner surface of the joint wall portion along a concrete moving direction, inner wall surface forming panels on both sides mounted on the inner support and erected vertically upwards, and inner wall surfaces of both sides. In the middle of the horizontal reinforcing material which is connected horizontally and integrally connected to the panel for forming the haunch forming panels on both sides and horizontally connecting the haunch forming panels on both sides integrally and reinforcing the lower part of the panel 3 A top slab bottom forming panel having a bending guide portion cut into a rectangular shape, lower end strip members on both sides respectively mounted to lower ends of the inner wall forming panels on both sides, and a plurality of drives mounted on the lower end strip members on both sides. Consisting of wheels;

The external formwork includes an outer support that is horizontally attached to an outer surface of the joint wall portion along a concrete moving direction, an outer wall forming panel on both sides that is mounted on the outer support and vertically placed upward, and the outer wall surfaces on both sides of the outer formwork. A plurality of horizontal members mounted on the upper part while traversing the upper part of the forming panel, upper end joists of both sides respectively mounted to upper ends of the outer wall forming panels on both sides, and joined to the horizontal members by a hinge, and the both sides Two pairs of support bars vertically fixed and installed while being opposed to the upper part of the upper joist wire of the upper and lower supporters, a cradle fixed and installed on the upper part of the support bars facing from both sides, and a plurality of mounted on the lower part of the cradle In the civil engineering, characterized in that the drive wheels are made of a mobile formwork for concrete concrete molding designed in the form of a box Ball.

Hereinafter, the technical configuration of the present invention will be described in detail with reference to the accompanying drawings of FIGS. 1 to 5 according to embodiments of the present invention.

The movable formwork according to the present invention is a concrete slab foundation slab (1), a lower haunting portion (2) and a joint wall portion (designed as a quadrangular box structure in civil works such as culverts of roads and railways, and waterworks, sewers, and public buildings). 3) After molding, it is used to form the wall (4), the upper haunches (5) and the upper slab (6) to be connected and constructed on the joint wall (3), and roughly divided into the inner surface of the wall (4) It consists of an inner formwork 10 for forming the bottom surface of the upper haunching section 5 and the upper slab 6, and an outer formwork 20 for forming the outer surfaces of the wall 4 and the upper slab 6. do.

The inner formwork 10 has an inner support 11 which is horizontally attached to the inner surface of the joint wall portion 3 along a concrete traveling direction, and inner wall surfaces of both sides which are mounted on the inner support 11 and erected vertically upwards. The panel 12 for shaping, the plate forming panel 13 on both sides which are inclined inwardly while being integrally connected to the inner wall panel forming panels 12 on both sides, and the plate forming panel 13 on both sides are The upper plate slab bottom surface forming panel 14, which is installed horizontally while being integrally connected and is formed with a bending guide portion 14b cut in a triangular shape at the middle of the horizontal reinforcement 14a reinforcing the lower part of the panel, The lower side joists 15 on both sides respectively mounted to the lower ends of the inner wall surface forming panels 12 on both sides, and a plurality of driving wheels 16 mounted on the lower joists 15 on both sides.

The inner support 11 is a bolt rod (B) protruding to the outside while buried in the inside of the joint wall portion 3 with a predetermined interval along the concrete traveling direction with the outer support 21 of the outer formwork 20 to be described later Penetrating through both ends of the field and fastened through the nut (N) is attached in close contact with the inner surface of the joint wall (3).

The drive wheel 16 is mounted to the lower end joist 15 on both sides through the wheel support (16a) opposite from both sides. The wheel supports 16a are preferably welded to the lower end joist 15, and are communicated by the bolt rod B together with the inner support 11 to be fastened with a nut N.

Lower support members 17a are provided between the wheel support members 16a facing each other while supporting them horizontally. The middle portion of the lower bracing material 17a is provided with a turnbuckle portion t that can be stretched in the lateral direction, and is stretched to a length as necessary to push the inner wall forming panels 12 on both sides toward the joint wall portion 3. It can be fixed firmly or shrink when demolding.

Upper bracing members 17b are installed on the upper side of the inner side wall forming panels 12 on both sides to support them horizontally. Like the lower brace material 17a, the upper brace material 17b is also provided with a turnbuckle portion t that is transversely stretchable in the middle portion and is used for installation and demoulding.

The middle portion of the bottom surface forming panel is provided with a plurality of vertical brace material 18 to support the bottom surface at regular intervals along the concrete traveling direction. A height adjustment jack 18a is provided below the vertical bracing material 18 to be supported on the foundation slab 1.

Although the vertical support material 18 is shown in FIG. 1 in one row, when the width of the sphere is designed to be wide (2.5 m or more), it is preferable to install in two or more suitable rows as shown in FIG. desirable.

In addition, on both sides of the bottom surface forming panel 14, a plurality of vertical brace material 19 for supporting the bottom surface is provided at regular intervals along the concrete traveling direction. This vertical brace material 19 is also provided with a turnbuckle portion t that can be stretched up and down in the middle portion and is used for installation and dismantling.

The outer formwork 20 has an outer support 21 which is horizontally attached to the outer surface of the joint wall portion 3 along a concrete traveling direction, and an outer wall surface of both sides mounted on the outer support 21 and standing vertically upwards. The panel 22 for molding, the plurality of horizontal members 23 mounted on the upper part while crossing the upper portions of the outer wall forming panels 22 on both sides, and the outer wall forming panels 22 on both sides. It is mounted on the upper end and is fixed and installed vertically while facing the upper ends of the top joists 25 on both sides and coupled to the horizontal member 23 and the hinge 24, respectively, the upper and lower vertically Two pairs of support bars 26 connected to each other, a pair of cradles 27 fixed and installed on an upper portion of the support bar 26 facing from both sides, and a plurality of cradles mounted below the cradle 27. It is composed of a drive wheel (28).

As described above, the outer support 21 is embedded with the inner support 11 of the internal formwork 10 and bolt rods protruding to the outside while being embedded in the joint wall part 3 at a predetermined interval along a concrete traveling direction ( It is penetrated through both ends of the B) and fastened through the nut (N) and attached in close contact with the outer surface of the joint wall portion (3).

The support bar 26 is configured in a state in which the turnbuckle portion t is provided in the middle portion.

The pair of cradles 27 use forced H beams, and are connected and fixed with a plurality of connecting members 27a so as not to be twisted.

On the other hand, the inner wall forming panel 12 of the inner formwork 10 and the outer wall forming panel 22 of the outer formwork 20, in addition to the lower and upper joists 15, 25 described above in the middle portion Horizontally padded middle joists 15a, 25a are padded at certain heights to support lateral pressures acting in the lateral direction when concrete is poured.

In addition, bolt rods B for maintaining the interval between the inner and outer wall forming panels 12 and 22 at a predetermined interval along the concrete traveling direction are penetrated to the intermediate joists 15a and 25a. .

The present invention is installed in the configuration as described above to pour the concrete of the wall (4) and the upper slab (6) for a section and then to survive for a certain period to complete the curing of the poured concrete.

Hereinafter, looking at the method of demoulding and moving to the next construction section of the mobile formwork according to the present invention.

The present invention is to remove the inner and outer support (11) (21) and the bolt bar (B) supporting the lower end of the inner formwork 10 and the outer formwork 20, and the inner wall forming panel 12 The inner and outer molds 10 in a state in which the mutual restraint state of the inner and outer molds 10 and 20 is removed by removing the bolt bars B that maintain the gap while connecting the outer wall forming panel 22 and the outer wall forming panel 22. (20) Demonstrate and demote independently.

First, demolding and moving methods of the internal formwork 10 will be described.

First, the upper and lower lengths of the vertical brace members 19 supporting the bottom surface forming panel 14 of the inner formwork 10 at both sides are reduced by using the turnbuckle part t to separate the upper surface of the foundation slab 1. And remove it completely.

Subsequently, the inner wall surface forming panel 12 is reduced by reducing the turnbuckle portion t of the upper and lower support members 17b and 17a horizontally supporting the inner wall forming panel 12 of the inner formwork 10. Is detached from the molded concrete wall (4). At this time, the bottom molding panel 14 is bent inwardly through the bending guide portion 14b at the center thereof, and a portion of both sides thereof is spaced apart from the concrete surface together with the haunch molding panel 13.

Thereafter, the vertical brace material 18 using the turn buckle provided at the height adjustment jack 18a of the vertical brace material 18 or the middle portion of the vertical brace material 18 supporting the bottom surface forming panel 14 of the internal formwork 10 in the middle. ) By vertically reducing the vertical length of the bottom surface forming panel 14 of the inner formwork (10) from the concrete surface to completely remove the vertical support material (18).

In this case, as shown in FIG. 5, the internal formwork 10 according to the present invention is completely detached from the molded wall 4 and the foundation slab 1, and the driving wheel 16 provided in the lower portion is the foundation slab. It becomes a grounded state on the upper surface of (1).

The internal formwork according to the present invention pushes the driving wheel 16 to the next construction section by rolling the driving wheel 16 on the pre-installed foundation slab in the demolded state as described above, and together with the external formwork 20 as described above. Install while connecting.

Next, the disassembly and moving method of the external formwork 20 will be described.

First, the adhesive state between the concrete surface of the wall 4 and the outer wall forming panel 22 is released.

Next, the driving wheel 28 provided in the lower portion of the top joist 25 and the cradle 27 is lowered to ground on the molded upper slab (6).

Subsequently, if the driving wheel 28 is further lowered downward, the upper barred wire 25 connected to the support bar 26 moves upward, and at the same time, the cross member 23 and the outer wall forming panel 22 are upper part. Go to.

Then, when the transverse reinforcing material is removed from the outer wall forming panel 22 and is isolated from the concrete, the outer wall forming panel 22 is opened as shown in FIG. 5 and the side wall 4 and the top slab 6 are removed from the sides. Completely detached.

In this state, if the external formwork 20 is pushed to the next construction section, the driving wheel 28 is rolled on the prefabricated upper slab 6 while the entire external formwork 20 is moved forward, and the prefabricated upper slab ( At the end of 6) mobilize the equipment and manpower to move completely to the next construction section, it is installed while connecting with the internal formwork (10) in the configuration as described above.

The present invention constructed as described above can be supported by installing the lower haunting part and the wall part together when constructing the foundation slab by raising the concrete joint part to the wall of the upper part of the haunting part and placing the formwork used for the upper construction part on the joint part. By installing the structural part in advance and installing the inner and outer formwork that can be used repeatedly while moving in the direction of work after wall concrete is placed on it, it prevents the construction work of the haunting part and also shortens the construction cost and period. Implement economic construction method and achieve perfect precision standard construction.

In addition, the present invention is to make the internal and external formwork connected to the whole flexible, and to simplify the structure that does not require the rail and the rails for moving the formwork, the internal formwork can move the cloud on the upper surface of the foundation slab The external formwork enables to move on the upper surface of the slab slabs previously constructed, thereby simplifying the formwork and minimizing the installation cost.

Therefore, the present invention not only greatly reduces the field construction work of the formwork, but also provides a very economical formwork system that facilitates perfect precision standard construction and repeated use and installation, dismantling, and transportation of the formwork.

Claims (7)

After forming the foundation slab (1), the lower haunting portion (2) and the joint wall portion (3) of the concrete sphere, which are designed as a quadrilateral box structure in road, railroad culverts, and water and sewerage or community construction, the joint wall portion (3) In constructing the inner formwork 10 and the outer formwork 20 for forming the wall 4, the upper haunches 5 and the upper slab 6 to be connected and constructed on the The inner formwork 10 has an inner support 11 which is horizontally attached to the inner surface of the joint wall portion 3 along a concrete traveling direction, and is mounted on the inner support 11 so as to stand vertically upward. Integral to the inner wall forming panel 12, the inner wall forming panels 12 on both sides, and the haunch forming panels 13 on both sides that are inclined inwardly, and the haul forming panels 13 on both sides. ) Is installed horizontally while integrally connecting the upper slab bottom surface forming panel 14 is formed in the middle of the horizontal reinforcing material (14a) reinforcing the lower portion of the panel is bent guide portion 14b cut in a triangular shape And a plurality of driving wheels 16 mounted on both lower end joists 15 mounted on lower ends of the inner side wall forming panels 12 on both sides, and on the lower joists 15 of both sides; The outer mold 20 has an outer support 21 which is horizontally attached to the outer surface of the joint wall portion 3 along a concrete traveling direction, and is mounted on the outer support 21 to stand vertically upwards. The outer wall forming panel 22, the plurality of horizontal members 23 mounted on the upper side while crossing the upper portions of the outer wall forming panels 22 on both sides, and the inner wall forming panels 12 on both sides. The upper end joists 25 on both sides coupled to the upper ends of the horizontal member 23 and the hinge 24, and are fixed and installed vertically while opposing the upper ends of the top joists 25 on both sides. Two pairs of support bars 26 connected up and down, a pair of cradles 27 fixed and installed on an upper portion of the support bar 26 facing from both sides, and mounted on the lower part of the cradle 27 Box form in civil engineering, characterized in that consisting of a plurality of drive wheels 28 Designed removable formwork for concrete which concrete molding. According to claim 1, The inner and outer support (11, 21) is coupled to both ends of the bolt rods (B) protruding to the outside while being embedded in the joint wall portion (3) at regular intervals along the concrete progress direction A mobile formwork for concrete concrete molding designed in the form of a box in civil engineering, characterized in that attached to the inner and outer walls of the joint wall portion (3). According to claim 1, The drive wheel 16 is mounted to the lower joist 15 through the wheel support 16a opposing on both sides, the wheel support 16a is connected horizontally to those facing both sides Lower bracing material (17a) to support the installation is installed, the middle of the lower bracing material (17a) is a concrete designed in the form of a box in civil engineering, characterized in that the turnbuckle portion (t) connected in the transverse direction is provided Mobile formwork for sphere molding. The upper bracing member 17b is installed at upper ends of the inner side wall forming panels 12 on both sides, and the upper bracing members 17b are connected to each other to support them horizontally. Mobile formwork for concrete sphere molding designed in the form of a box in civil engineering, characterized in that the turnbuckle portion (t) which is rigid in the direction. The method of claim 1, wherein a plurality of vertical brace material 18 for supporting the bottom surface is installed in the middle portion of the panel for forming the bottom surface at regular intervals along the concrete traveling direction, the lower portion of the vertical brace material 18 A movable formwork for concrete sphere molding designed in the form of a box in civil engineering, characterized in that the height adjustment jack (18a) is provided to be grounded on the foundation slab (1). According to claim 1, On both sides of the bottom surface forming panel 14 is provided with a plurality of vertical braces 19 to support the lower surface at regular intervals along the concrete direction, the vertical braces (19) A movable formwork for concrete sphere molding designed in the box form in the civil engineering, characterized in that the middle portion of the turntable buckle portion (t) is stretchable up and down. The method of claim 1, wherein the support bar 26 is provided with a turn buckle portion (t) in the middle portion of the mobile formwork for concrete sphere molding designed in the form of a box in civil engineering, it characterized in that it is rigid up and down.