KR102243984B1 - Non-supporting formwork system for retaining wall using self-supporting form and construction method thereof - Google Patents

Abstract

The present invention is a self-supporting type that minimizes the use of temporary materials such as supports by using a self-standing formwork with excellent rigidity and light weight due to the combination of a truss girder on the indoor side of the panel during the installation of a basement composite wall, thereby solving all problems associated with the conventional temporary installation. It is about the unsupported formwork system and its construction method for spontaneous construction of combined walls using formwork.
The unsupported formwork system for spontaneous construction using a self-standing formwork includes a plurality of self-supporting formwork consisting of a panel and a plurality of rows of truss girders coupled to the indoor side of the panel as being spaced at a predetermined interval on the inside of the earthing barrier; A lower yoke configured as a hollow yoke pipe to support an inner lower end of the self-standing formwork; An upper yoke consisting of a hollow yoke pipe in a pair of upper and lower sides by supporting and connecting the inner upper end of the plurality of self-standing formwork to increase the size of the plurality of self-standing formwork; One end is hooked on the upper chord of the truss girder, and the other end is coupled to a fixing hook that penetrates between a pair of yoke pipes, a pressure fixing plate fixed to the other end of the fixing hook, and the other end of the fixing hook outside the pressure fixing plate to determine the position of the pressure fixing plate. Fixture consisting of a fixing nut to fix; A lower fixing member fixing the lower yoke to the lower slab or the combined wall; And an upper fixing member fixing the upper yoke to the H pile of the soil barrier. Includes.

Description

[Non-supporting formwork system for retaining wall using self-supporting form and construction method thereof]

The present invention is a self-supporting type that minimizes the use of temporary materials such as supports by using a self-standing formwork with excellent rigidity due to the combination of a truss girder on the indoor side of the panel during the construction of the basement composite wall, thereby solving the problems associated with the conventional temporary installation. It is about the unsupported formwork system and its construction method for spontaneous construction of combined walls using formwork.

Combined wall refers to a wall that is installed on the front of the earthen barrier in the excavated underground space, and is usually constructed by using the earthen barrier as an external formwork on the outside and installing the formwork on the inner surface only.

In general, in wall construction, reinforcement of the wall is laid, formwork is installed on both sides of the reinforcing bar, and then concrete is poured in a state in which the formwork on both sides is fixed with a form tie, etc., so that the side pressure can be supported during concrete pouring.

Unlike this, however, since the basement composite wall may have a formwork installed only on the indoor side, it is difficult to fix the formwork with a form tie or the like to support the pouring pressure when placing the composite wall concrete. Therefore, in the related art, as shown in FIG. 1, a temporary material such as a support is installed indoors to support the formwork to support the lateral pressure (Registration Utility Model No. 20-0285281, etc.).

However, such a conventional technique requires a lot of temporary materials, and there is a problem that a lot of time is required to install and dismantle the temporary materials. In addition, these temporary materials interfere with the movement of workers, which may lead to a safety accident, and since the temporary materials occupy a lot of space, there is a problem that it is difficult to utilize the underground space.

In order to solve the above problems, the present invention minimizes the installation of temporary materials such as a support for supporting the formwork when constructing an underground composite wall, thereby solving all the problems associated with the conventional temporary material installation. It is intended to provide a system and its construction method.

The present invention according to a preferred embodiment comprises a plurality of self-supporting formwork consisting of a panel and a plurality of rows of truss girders coupled to the interior of the panel to be spaced at a certain interval on the inner side of the earthing barrier; A lower yoke configured as a hollow yoke pipe to support an inner lower end of the self-standing formwork; An upper yoke consisting of a hollow yoke pipe in a pair of upper and lower sides by supporting and connecting the inner upper end of the plurality of self-standing formwork to increase the size of the plurality of self-standing formwork; One end is hooked on the upper chord of the truss girder, and the other end is coupled to a fixing hook penetrating between a pair of yoke pipes, a pressure fixing plate fixed to the other end of the fixing hook, and the other end of the fixing hook outside the pressure fixing plate to determine the position of the pressure fixing plate. Fixture consisting of a fixing nut to fix; An anchor bolt embedded in the lower slab and protruding obliquely toward the interior to fix the lower yoke to the lower slab, a bracket formed in a right-angled triangle shape so that the end of the anchor bolt penetrates the long side and protrudes outward, the anchor bolt Consisting of a support washer provided in close contact with the long side of the bracket so that it penetrates, a fixing nut fastened to the anchor bolt from the outside of the support washer, and a height adjustment bolt that is coupled to the inner end of the bracket to close the lower yoke to the self-standing formwork. Lower fixed material; The upper yoke is provided on the left and right sides of the H pile to fix the upper yoke to the H pile, and has a groove on the flange of the H pile. One end is coupled to the hook and the other end penetrates a pair of yoke pipes. An upper fixing member composed of a support bar, a fastening plate coupled to the other end of the support bar to support an upper yoke, and a gap maintaining plate coupled to the support bar to support the outside of the panel of the self-standing formwork; And a connecting member which is slidably inserted into the end of the yoke pipe of the upper and lower yokes adjacent to each other in the transverse direction to interconnect the yoke pipes on both sides. It provides a non-column formwork system for spontaneous construction of a combined wall using a self-standing formwork, characterized in that it consists of.

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In the present invention according to another preferred embodiment, a sliding bar is protruding from one side of the connecting member, and a sliding length hole for guiding the sliding bar is formed at the end of the yoke pipe on one side. Main formwork system is provided.

The present invention according to another preferred embodiment relates to a construction method of an unsupported formwork system for joint-wall successive construction using the self-supporting formwork, (a) lifting the upper yoke fixed to the self-supporting formwork to form a self-standing formwork with a dirt barrier and a predetermined interval Installing to be spaced apart; (b) The lower yoke is fixedly installed on the upper surface of the slab or the front of the combined wall to support the lower inner side of the self-supporting formwork, while the upper yoke and the H pile of the soil barrier are connected with the upper fixing material to fix the top of the self-supporting formwork. step; (c) forming a combined wall by pouring concrete between the soil barrier and the self-supporting formwork; (d) demolding the self-supporting formwork; And (e) repeating the steps (a) to (d); It provides a method of constructing a non-supporting formwork system for a combined wall sunta construction using a self-supporting formwork, characterized in that it comprises a.

According to the present invention, there are the following effects.

First, use a self-standing formwork in which a truss girder is coupled to the indoor side of the panel when constructing an underground composite wall, but the lower part of the light weight and high rigidity freestanding formwork is through the lower yoke to the lower slab or composite wall, and the upper part of the freestanding formwork is the upper yoke. It can be fixed to each of the H piles of the dirt barrier through. As a result, since the combined wall formwork can be installed without a separate temporary support and the side pressure can be supported when the combined wall concrete is placed, various problems caused by the installation of temporary materials in the conventional combined wall construction process can be solved.

That is, since the temporary material for supporting the formwork located inside the combined wall is greatly omitted, it is possible to save construction costs and construction costs. In addition, there is no interference in worker passage by minimizing the temporary installation space, and it is advantageous in securing a work space.

Second, since the upper yoke is fixed to the self-standing formwork to support the upper inner side of the self-standing formwork, it is possible to save time required for installation and demoulding of the formwork by connecting a plurality of self-standing formwork to increase the size.

Third, the upper yoke and the lower yoke can be easily connected and fixed by a connecting member that is slidably inserted into the yoke pipe. In this case, since the pipe can be easily connected to the left and right yoke without a separate temporary support, it is easy to combine the self-standing formwork.

1 is a perspective view showing a formwork supported by a conventional temporary material.
Figure 2 is a perspective view showing an unsupported formwork system for the construction of a combined wall using a self-standing formwork of the present invention.
3 is a perspective view showing a self-supporting formwork.
Figure 4 is a perspective view showing an embodiment of the lower fixing member.
Figure 5 is a side cross-sectional view showing another embodiment of the lower fixing member.
Fig. 6 is a perspective view showing a plurality of self-standing formwork integrated by an upper yoke.
7 is a perspective view showing a fixture.
8A and 8B are a plan view and a side cross-sectional view showing a coupling relationship between the fixtures, respectively.
9 is a perspective view showing an upper fixing member.
10 is a side cross-sectional view showing an upper yoke fixed by an upper fixing member.
Fig. 11 is a perspective view showing a coupling relationship between left and right upper yokes by a connecting member.
Figure 12 is a view showing a step-by-step process for the construction method of the non-column formwork system for the construction of a composite wall using the self-standing formwork of the present invention.

Hereinafter, the present invention will be described in detail according to the accompanying drawings and preferred embodiments.

Fig. 2 is a perspective view showing a non-column formwork system for spontaneous construction using a self-standing formwork of the present invention, and Fig. 3 is a perspective view showing a self-standing formwork. And Figure 4 is a perspective view showing an embodiment of the lower fixing member, Figure 5 is a side cross-sectional view showing another embodiment of the lower fixing member.

As shown in Figs. 2 and 3, the unsupported formwork system for spontaneous joint construction using the self-standing formwork of the present invention is spaced at a certain interval inside the earthing barrier (1), and the interior of the panel 41 and the panel 41 A plurality of self-standing formwork (4) consisting of a plurality of rows of truss girders (42) coupled to the side; A lower yoke (5) configured as a hollow yoke pipe to support the inner lower end of the self-standing formwork (4); An upper yoke 6 consisting of hollow yoke pipes 6a and 6b in a pair of upper and lower sides by supporting and connecting the upper inner side of the plurality of self-standing formwork 4 to increase the size of the plurality of self-standing formwork 4; One end is caught on the upper chord 422 of the truss girder 42, and the other end is a fixing hook 611 that penetrates between a pair of yoke pipes 6a and 6b, and a pressure fixing plate fixed to the other end of the fixing hook 611 A fixture 61 composed of a fixing nut 613 that is coupled to the other end of the fixing hook 611 outside the pressure fixing plate 612 and fixing the position of the pressure fixing plate 612; In order to fix the lower yoke 5 to the lower slab 2, the anchor bolt 71 is buried in the lower slab 2 and protrudes inclined toward the interior, and is formed in a right-angled triangle shape so that the end of the anchor bolt 71 The bracket 72 protrudes outward by penetrating the long side, the support washer 74 provided in close contact with the long side of the bracket 72 so that the anchor bolt 71 penetrates, and from the outside of the support washer 74 A lower fixing consisting of a fixing nut (75) fastened to the anchor bolt (71) and a height adjustment bolt (73) that is coupled to the inner end of the bracket (72) to close the lower yoke (5) to the self-standing formwork (4) Member 7; To fix the upper yoke (6) to the H pile (11) of the retainer (1), it is provided on the left and right sides of the H pile (11), and has a groove (81) formed with a groove to be hooked to the flange of the H pile (11) , One end is coupled to the locking hole 81 and the other end is a support bar 83 penetrating through a pair of yoke pipes 6a, 6b, and is coupled to the other end of the support bar 83 to provide an upper yoke 6 An upper fixing member (8) consisting of a fastening plate (84) for supporting and a gap maintaining plate (86) coupled to the support bar (83) to support the outside of the panel (41) of the self-standing formwork (4); And a connecting member 9 which is slidably inserted into the yoke pipe ends of the upper yoke 6 and the lower yoke 5 adjacent to each other in the transverse direction to interconnect the yoke pipes on both sides. It characterized in that it consists of.

The present invention uses a self-standing formwork 4 to which the truss girder 42 is coupled to the indoor side of the panel 41 when constructing an underground composite wall, etc. It is to provide a non-column formwork system and a construction method thereof for spontaneous joint construction using a self-standing formwork that can be omitted so as to solve all the problems caused by the conventional temporary installation.

The soil barrier (1) is installed in a transverse direction on the front surface of the plurality of H piles 11 provided to be spaced apart from each other, the earth plate 12 inserted between the neighboring H piles 11, and the H pile 11 It can be configured as a strip (13) to support.

The self-supporting formwork 4 is provided on the inner side of the soil barrier 1 so as to be spaced apart from the soil barrier 1 at a predetermined interval.

The self-standing formwork 4 is composed of a panel 41 and a plurality of rows of truss girders 42 coupled to the interior side of the panel 41.

The panel 41 is for forming the interior side of the combined wall 3 by pouring concrete between the soil barrier 1 and is provided to be spaced apart from the soil barrier 1 at a predetermined distance inside the soil barrier 1.

As the panel 41, a synthetic resin panel such as a metal panel or a cone panel may be used.

The truss girder 42 is coupled to the indoor side of the panel 41 to serve as a joist of the formwork, and is provided in a plurality of rows.

As shown in FIG. 3 and the like, the truss girder 42 includes a pair of lower chords 421, an upper chord 422 and the lower chords 421 provided to be spaced apart from the lower chords 421 at a predetermined interval. It can be composed of a lattice 423 that connects and supports the upper chord 422.

By combining the truss girder 42, the self-standing formwork 4 can be reduced in weight while increasing its own stiffness a lot, and thus temporary materials such as supports necessary for supporting the formwork can be omitted when constructing the combined wall 3. Accordingly, it is possible to solve all the problems caused by the conventional temporary installation.

In other words, since the temporary material for supporting the inner formwork of the combined wall 3 is greatly omitted, it is possible to shorten the construction period and reduce the construction cost, and there is no interference in the operator's passage by minimizing the installation space of the temporary material, and it is advantageous to secure a work space. In addition, since longitudinal rigidity is secured by the truss girder 42, a separate joist is not required.

The lower yoke 5 and the upper yoke 6 are installed at the lower and upper sides of the indoor side of the self-standing formwork 4, respectively.

The lower yoke 5 and the upper yoke 6 support the self-standing formwork 4 against the lateral pressure of the concrete and fix the installation position.

The lower yoke 5 and the upper yoke 6 may be supported by the upper chord 422 of the truss girder 42 constituting the self-standing formwork 4, respectively.

The lower yoke 5 is fixed to the lower slab 2 by the lower fixing member 7.

Here, the slab 2 includes not only a general slab but also a mat foundation, which is the lowest floor.

4 and 5 illustrate embodiments of the lower fixing member 7.

As shown in Figure 4, the lower fixing member 7 is installed embedded in the lower slab (2), an anchor bolt (71) that protrudes obliquely toward the interior and a bracket of a right triangle shape fixed to the anchor bolt (71) It can be composed of (72). At this time, the lower yoke 5 is positioned and supported on the outer portion of the bracket 72.

The anchor bolt 71 has one end that is obliquely buried in the slab 2 at a predetermined angle, and the other end penetrates the long side of the bracket 72 and protrudes outward, with a support washer 74 and a fixing nut 75. Can be fixed.

A height adjustment bolt 73 may be coupled to the inner end of the bracket 72 to adjust the height of the bracket 72 and to close the lower yoke 5 to the self-standing formwork 4.

Meanwhile, as shown in FIG. 5, the lower fixing member 7 may be configured to support the lower yoke 5 by being fixed to the combined wall 3 of the lower layer.

This embodiment is applicable to the case where there is no lower slab 2 due to high floor height, or the lower yoke 5 cannot be fixed to the slab 2 because the slab 2 is later cast.

In this case, the lower fixing member 7 is an anchor cone 76 buried inside the combined wall 3 of the lower layer, one end is screwed to the anchor cone 76, and the other end penetrates the lower yoke 5 to the inside. It is composed of a protruding fixing bar (77), a support washer (74) coupled to the other end of the fixing bar (77) to support the lower yoke (5), and a fixing nut (75) fixing the support washer (74). I can.

The upper yoke 6 is fixed to the H pile 11 of the soil barrier 1 by the upper fixing member 8.

The upper fixing member 8 is fixed at one end to the H pile 11 and the other end to the upper yoke 6 to fix the upper end of the self-standing formwork 4.

At this time, the height of the panel 41 of the self-standing formwork 4 in order to fix the upper fixing member 8 supported by the upper yoke 6 to the H pile 11 of the soil barrier 1 is the height of the truss girder 42 It is preferable to form it lower than the height.

Since the upper yoke 6 is fixed to the self-standing formwork 4, it is possible to reduce the installation and demoulding time of the formwork by connecting a plurality of self-standing formwork 4 to increase the size.

As described above, in the present invention, when constructing an underground composite wall, the composite wall formwork is composed of a self-standing formwork (4) with high rigidity and light weight, and the lower end of the self-standing formwork (4) is a lower slab (2) or a composite wall ( In 3), the upper end of the self-supporting formwork 4 can be fixed to the H pile 11 of the soil barrier 1 through an upper yoke 6, respectively. With this, it is possible to install a combined wall formwork without a separate temporary support and support the lateral pressure when placing the combined wall concrete.

6 is a perspective view showing a plurality of self-standing formwork integrated by an upper yoke.

As shown in FIG. 6, the upper yoke 6 may be configured to be fixedly coupled to the truss girder 42 of the self-standing formwork 4 by a fixture 61.

In the case of successive construction of the combined wall 3, since the upper layer is open, it is easy to lift the material by the lifting equipment.

Therefore, if a plurality of self-standing formwork 4 is interconnected and enlarged so that it can be installed at once, the time required for installation and dismantling of the formwork by the lifting equipment can be shortened.

For this, it is possible to form a large formwork by connecting a plurality of self-standing formwork (4) in the transverse direction using the upper yoke (6).

That is, the upper yoke 6 not only fixes the self-supporting formwork 4 to the H pile 11 of the soil barrier 1, but also connects a plurality of self-standing formwork 4 in the transverse direction to form a large formwork. do.

The large formwork formed in this way can be lifted by connecting the upper yoke 6 to the lift wire.

The upper yoke 6 can be fixed to the truss girder 42 of the self-standing formwork 4 by means of a fixture 61.

Fig. 7 is a perspective view showing a fastener, and Figs. 8A and 8B are a plan view and a side cross-sectional view showing a coupling relationship between the fasteners, respectively.

7 and 8, the upper yoke 6 is composed of a pair of upper and lower yoke pipes 6a, 6b, and the fixture 61 has one end of the upper chord of the truss girder 42 ( 422) and the other end is a fixing hook 611 that penetrates between a pair of yoke pipes 6a, 6b, a pressure fixing plate 612 fixed to the other end of the fixing hook 611, and the outside of the pressure fixing plate 612 It may be configured with a fixing nut 613 that is coupled to the other end of the fixing hook 611 of the pressure fixing plate 612 to fix the position of the pressure fixing plate 612.

In order to firmly fix the upper yoke 6 to the truss girder 42 of the free-standing formwork 4, the upper yoke 6 is fixed to the upper chord 422 of the truss girder 42 using a fixture 61 can do.

To this end, the upper yoke 6 is configured to separate a pair of yoke pipes 6a and 6b vertically, and the fastener 61 is a fixing hook 611, a pressure fixing plate 612, and a fixing nut 613 It can be composed of.

In particular, the fixing tool 61 has one end of a fixing hook 611 that is caught on the upper chord 422, a pressure fixing plate 612 and a pressure fixing plate 612 that are coupled to the other end of the fixing hook 611 to support the upper yoke 6 It can be composed of a fixing nut 613 that fixes the position of the 612.

Accordingly, when the fixing nut 613 is tightened, the pressure fixing plate 612 is pressed and the position of the upper yoke 6 positioned between the upper chord 422 and the pressing fixing plate 612 is fixed.

At this time, the fixing hook 611 may penetrate between a pair of yoke pipes 6a and 6b configured to be vertically spaced apart.

The pressure fixing plate 612 supports the upper yoke 6 and is fixed to the truss girder 42 of the self-standing formwork 4. In addition, the pressure fixing plate 612 pressurizes a pair of yoke pipes 6a and 6b provided vertically spaced apart from the truss girder 42 to prevent the yoke pipes 6a and 6b from being separated.

9 is a perspective view showing an upper fixing member, and FIG. 10 is a side cross-sectional view showing an upper yoke fixed by the upper fixing member.

As shown in FIGS. 9 and 10, the upper fixing member 8 has a locking hole 81 formed with a groove that is caught on the flange of the H pile 11, one end is coupled to the locking hole 81, and the other end It may be composed of a support bar 83 passing through a pair of yoke pipes 6a and 6b and a fastening plate 84 that is coupled to the other end of the support bar 83 to support the upper yoke 6.

The upper fixing member 8 fixes the upper yoke 6 to the H pile 11 of the soil barrier 1 so that the self-standing formwork 4 supports the pouring pressure of the combined-walled concrete.

The upper fixing member 8 is preferably provided in a pair on the left and right of each H pile 11 for stable support.

The locking hole 81 may be configured to be easily installed by forming a predetermined groove so that the flange of the H pile 11 is inserted therein.

One end of the support bar 83 is coupled to the locking hole 81, and the other end passes through the upper yoke 6 and protrudes into the inside of the combined wall.

A fastening plate 84 is coupled to the other end of the support bar 83 to support the upper yoke 6.

The support bar 83 may have a thread formed on the outer circumferential surface of the other end, and the fixing nut 85 is screwed so that the fastening plate 84 is fixed to the support bar 83.

A connector 82 may be provided between the locking hole 81 and the support bar 83 by being hinged with the locking hole 81 to enable angle adjustment of the locking hole 81.

In addition, in order to maintain the gap between the soil barrier (1) and the self-supporting formwork (4), the support bar (83) maintains a gap to support the panel (41) of the self-standing formwork (4) from the outside, that is, from the side of the combined wall (3). The plate 86 may be coupled.

In this case, the upper yoke 6 may include a pair of upper and lower yoke pipes 6a and 6b so that the support bar 83 may penetrate the upper yoke 6.

11 is a perspective view showing a coupling relationship between the left and right upper yokes by the connecting member.

The upper and lower yokes (5, 6) are composed of hollow yoke pipes (5a and 5b or 6a and 6b), and the upper yoke (6) and lower yoke (5) adjacent in the transverse direction slide to the end of the yoke pipe on both sides. It can be configured to be interconnected by a connecting member 9 inserted to be movable.

That is, as shown in Fig. 11, the upper yoke 6 may be composed of a pair of yoke pipes 6a and 6b having a hollow, and the upper yoke 6 adjacent in the transverse direction is yoke on both sides. The pipes 6a and 6b may be connected to each other by a connecting member 9 that is slidably inserted into the ends of the pipes 6a and 6b.

In addition, the lower yoke 5 may be composed of a pair of yoke pipes 5a, 5b having a hollow inside, and the lower yoke 5 adjacent to the transverse direction is the end of the yoke pipes 5a and 5b on both sides. It can be connected to each other by a connecting member (9) that is slidably inserted into the.

The present invention is to minimize the installation of the temporary support. In this case, it may be difficult to connect and integrate the lower yoke 5 or the upper yoke 6 adjacent to each other in the transverse direction.

Therefore, the yoke pipe 5a adjacent in the transverse direction by the connecting member 9 slidably inserted into the yoke pipes 5a and 5b or 6a and 6b constituting the upper yoke 6 and the lower yoke 5 , 5b, 6a, 6b) can be fixed to each other.

The connecting member 9 is simultaneously inserted into the left and right yoke pipes 5a, 5b, 6a, and 6b to connect and support the left and right yoke pipes 5a, 5b, 6a and 6b.

Therefore, it is possible to easily connect the left and right yoke pipes (5a, 5b, 6a, 6b) without a separate temporary support.

Therefore, since the upper yoke 6 and/or the lower yoke 5 are coupled by the connecting member 9, the self-standing formwork 4 is easily coupled.

The connecting member 9 is preferably formed to be tapered so that the width becomes narrower toward the end so that it can be easily inserted into the inside of the adjacent yoke pipe.

A sliding bar 91 is protruded on one side of the connecting member 9, and a sliding long hole 62 for guiding the sliding bar 91 is formed at the end of the yoke pipe 6a, 6b on one side. have.

In order to freely slide the connecting member 9 left and right, a sliding bar 91 may be provided on one side of the connecting member 9 so as to protrude to the outside of the yoke pipes 6a and 6b.

In this case, the operator can connect or disconnect the pipes 6a and 6b between the yokes on both sides by holding the sliding bar 91 and moving the connecting member 9 left and right.

In the case of the upper yoke 6 as well as the lower yoke 5, a sliding bar 91 is protruded on one side of the connecting member 9, and the sliding bar 91 is formed at the end of the yoke pipe 5a, 5b on one side. 91) can be formed with a sliding hole.

12 is a view showing a step-by-step process for the construction method of the non-column formwork system for the construction of a composite wall using a self-standing formwork according to the present invention.

The construction method of the unsupported formwork system for spontaneous joint construction using the self-standing formwork of the present invention relates to a method of constructing the unsupported formwork system for spontaneous joint construction using the present invention self-standing formwork.

In the construction method of the unsupported formwork system for spontaneous joint construction using the self-standing formwork of the present invention, first (a) the upper yoke (6) fixed to the self-standing formwork (4) is lifted and It is installed so as to be spaced apart at a certain interval (Fig. 12 (a)).

At this time, the self-standing formwork 4 may be lifted by connecting a lifting wire to the upper yoke 6.

The self-standing formwork (4) is installed to be spaced apart from the soil barrier (1) by the thickness of the combined wall (3).

Next, (b) the lower yoke (5) is fixedly installed on the upper surface of the slab (2) or the front surface of the combined wall (2) with a lower fixing member (7) to support the lower inner side of the self-standing formwork (4), while supporting the upper yoke ( 6) The upper end of the self-standing formwork 4 is fixed by connecting the H pile 11 of the soil barrier 1 with the upper fixing member 8 (Fig. 12(b)).

That is, a lower yoke 5 and a lower fixing member 7 are installed in the lower part of the self-standing formwork 4 to support the lower end of the self-standing formwork 4. And the upper yoke (6) fixed to the self-standing formwork (4) is fixed to the H pile (11) of the soil barrier (1) with an upper fixing member (8) to support the upper end of the self-standing formwork (4).

If there is no lower slab (2) due to high floor height, or if the lower yoke (5) cannot be fixed because the slab (2) is post-cast, the fixing bar (77) and the anchor cone (76) pre-embedded in the concrete The support washer 74 is combined to support the lower end of the self-supporting formwork 4 (see Fig. 5).

And (c) concrete is poured between the soil barrier (1) and the self-supporting formwork (4) to form a combined wall (3) (Fig. 12 (c)), (d) the self-supporting formwork (4) is demolded ( Fig. 12(d)).

In the step (d), when the composite wall concrete is hardened to support the earth pressure to some extent, the self-supporting formwork 4 may be demolded and the strip 13 on the upper part of the composite wall 3 may be removed.

In addition, (e) the steps (a) to (d) are repeatedly constructed (FIG. 12(d)).

That is, the demolded self-supporting formwork 4 is lifted up one layer, and steps (a) to (d) are repeated to complete the construction of the combined wall (3).

1: dirt barrier 11: H pile
12: earth plate 13: belt
2: slab 3: composite wall
4: freestanding formwork 41: panel
42: truss girder 421: lower current
422: Sanghyun 423: Lattice
5: lower yoke 5a, 5b: yoke pipe
6: upper yoke 6a, 6b: yoke pipe
61: fixture 611: fixing hook
612: pressure fixing plate 613: fixing nut
62: sliding length 7: lower fixing material
71: anchor bolt 72: bracket
73: height adjustment bolt 74: support washer
75: fixing nut 76: anchor cone
77: fixing bar 8: upper fixing material
81: locking hole 82: connector
83: support bar 84: fastening plate
85: fixing nut 86: spacing plate
9: connection member 91: sliding bar

Claims (7)

A plurality of self-supporting formwork (4) consisting of a panel 41 and a plurality of rows of truss girders 42 coupled to the interior side of the panel 41 to be spaced apart at a predetermined interval on the inner side of the retainer 1;
A lower yoke (5) configured as a hollow yoke pipe to support the inner lower end of the self-standing formwork (4);
An upper yoke 6 consisting of a pair of hollow yoke pipes 6a and 6b by supporting and connecting the upper inner side of the plurality of self-standing formwork 4 to increase the size of the plurality of self-standing formwork 4;
One end is caught on the upper chord 422 of the truss girder 42, and the other end is a fixing hook 611 that penetrates between a pair of yoke pipes 6a and 6b, and a pressure fixing plate fixed to the other end of the fixing hook 611 A fixture 61 composed of a fixing nut 613 that is coupled to the other end of the fixing hook 611 outside the pressure fixing plate 612 and fixing the position of the pressure fixing plate 612;
To fix the lower yoke 5 to the lower slab 2, an anchor bolt 71 that is embedded in the lower slab 2 and protrudes obliquely toward the interior, is formed in a right-angled triangle shape to the end of the anchor bolt 71 The bracket 72 protrudes outward by penetrating the long side, the support washer 74 provided in close contact with the long side of the bracket 72 so that the anchor bolt 71 penetrates, and from the outside of the support washer 74 A lower fixing consisting of a fixing nut (75) fastened to the anchor bolt (71) and a height adjustment bolt (73) that is coupled to the inner end of the bracket (72) and makes the lower yoke (5) in close contact with the self-standing formwork (4) Member 7;
To fix the upper yoke (6) to the H pile (11) of the retainer (1), it is provided on the left and right sides of the H pile (11), and has a groove (81) formed with a groove to be caught in the flange of the H pile (11) , One end is coupled to the locking hole 81 and the other end is a support bar 83 penetrating through a pair of yoke pipes 6a, 6b, and is coupled to the other end of the support bar 83 to provide an upper yoke 6 An upper fixing member (8) consisting of a fastening plate (84) for supporting and a gap maintaining plate (86) coupled to the support bar (83) to support the outside of the panel (41) of the self-standing formwork (4); And
A connecting member 9 which is slidably inserted into the yoke pipe ends of the upper yoke 6 and the lower yoke 5 adjacent to each other in the transverse direction to interconnect the yoke pipes on both sides; A non-column formwork system for spunta construction using a self-standing formwork, characterized in that consisting of
delete delete delete delete In claim 1,
A sliding bar 91 is protruded on one side of the connecting member 9, and a sliding long hole 62 for guiding the sliding bar 91 is formed at the end of the yoke pipe 6a, 6b on one side. A non-column formwork system for spontaneous composite wall construction using self-supporting formwork.
It is about the construction method of the non-column formwork system for spontaneous joint construction using the self-standing formwork according to paragraph 1,
(a) lifting the upper yoke (6) fixed to the self-supporting formwork (4) to install the self-supporting formwork (4) to be spaced apart from the soil barrier (1) by a predetermined distance;
(b) The lower yoke (5) is fixedly installed on the upper surface of the slab (2) or the front surface of the combined wall (2) with a lower fixing member (7) to support the lower inner side of the self-standing formwork (4), while supporting the upper yoke (6) and Fixing the upper end of the self-supporting formwork 4 by connecting the H pile 11 of the soil barrier 1 with an upper fixing member 8;
(c) placing concrete between the soil barrier (1) and the self-supporting formwork (4) to form a combined wall (3);
(d) demoulding the self-standing formwork (4); And
(e) repeating the steps (a) to (d); Construction method of a non-supporting formwork system for combined wall sunta construction using a self-supporting formwork, characterized in that it comprises a.

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