KR19980053385A - Formwork for building wall slabs and construction method thereof - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Formwork for building wall slabs and construction method thereof

2. The technical gist of the invention

The present invention is to form the wall and the slab at the same time to form a surface of the wall while the upper and lower formwork is combined to be foldable, can be supported by a support member to form a wall slab building formwork that can easily achieve the installation and demoulding formwork And its construction method.

3. Summary of Solution to Invention

The present invention has a top member and a lower member having a predetermined size; And it provides a wall slab building formwork comprising a means for connecting the upper and lower members to be folded. In addition, the present invention provides a first step of determining the required height of the ceiling at the bottom surface to adjust the leveling mechanism to match the horizontal height at the bottom surface; A second step of placing a lower formwork on an upper surface of the leveling mechanism and setting up an upper formwork; A third step of adjusting the length of the length adjusting mechanism to the bottom surface so that the vertical heights of the upper and lower members are maintained; A fourth step of fixing the length adjusting means to the bottom surface with a bolt to maintain the vertical position of the upper member and the lower member; A fifth step of supporting the ceiling slab on the horizontal member of the upper member; And a sixth step of forming walls and ceiling slabs by placing concrete on the upright upper and lower formwork and the ceiling.

4. Important uses of the invention

Wall slabs can be installed and demolished quickly and safely.

Description

Formwork for building wall slabs and construction method thereof

The present invention relates to a formwork used in the construction of walls and slabs, in particular, to form a wall slab that can be easily formed and demoulded by combining the upper and lower formwork by a hinge so as to be foldable, and can be supported by a support member It relates to a formwork for the dragon and its construction method.

In general, in the construction of a structure such as a building, the construction of a wall or floor of the building to form a single wall surface by combining a plurality of formwork consisting of unit panels having a size of up to 600 mm × 1200 mm, The slab forms a slab surface by supporting the support every 1m using plywood and lumber, and builds the wall and the slab at the same time by placing concrete on the wall or the formwork forming the slab surface.

In addition, in order to maintain a constant height of the slab surface during the construction of the wall surface, the wooden surface having a predetermined height on the floor surface and then form the formwork on it to form a wall surface.

Here, the conventional formwork for forming the wall surface or the slab surface is usually formed by fixing the plywood to the steel frame forming a square frame, or fixed to the unit panel or the unit panel fixed after the wood as a support member on one side of the plywood itself It is formed in combination.

This construction method requires the operator to assemble the unit panel one by one, and the size of the formwork requires a lot of time to install, and also, many joint joints are formed at each of the formwork connecting parts. There was an inconvenience in work that had to be smooth. In addition, in the formwork demoulding method after the wall construction, the worker is demolding the corner part of the formwork with an iron skewer in a forced demoulding method. Accordingly, the formwork falls and damages the floor surface, and not only seriously affects the strength of the concrete floor surface, but also acts as a hazard to the worker when demolding the formwork, thereby causing safety problems.

In addition, when the face plate attached to the concrete surface is made of steel or plywood, after one layer of formwork, the face plate needs to be oiled on the face plate.

On the other hand, it is proposed that the size of the formwork board corresponds to the height of the wall as a large formwork with a size of 1200mm × 2400mm, and that only one or two plates can support the wall length. After pouring concrete to form a wall, the slab formwork is installed again, and the concrete is applied to horizontal and vertical separation casting methods to form slabs. The application of this method solves some of the problems of quality and safety when using the unit panel, but there is a problem that the strength of the joint surface of the wall and the slab is degraded. It should not be installed directly and should be installed using equipment such as tower crane. At this time, communication between the tower crane driver and the worker on the ground is not made smoothly, and there is a problem that it takes a lot of time during the actual installation and demolding because the fine adjustment is not easy when the formwork is installed.

In addition, due to the difference in the demolding time of the slab formwork due to the difference in the curing period of the wall and the slab, the problem of the large formwork forming one side of the conventional wall, that is, the problem caused by building the slab after building the wall and also, the wall And slab can be constructed at the same time, but it is implicated in the productivity degradation caused by combining a plurality of platelets to form a single wall.

Therefore, the present invention has been devised to solve the above problems, the upper and lower formwork is coupled to be folded so as to form a surface of the wall while simultaneously building the wall and the slab, the formwork to be supported by the support member. The purpose of the present invention is to provide a formwork for building wall slab and a construction method thereof, which can easily achieve the installation and demoulding of the product.

In addition, another object of the present invention is to provide a wall slab construction formwork and construction method that can be a concrete construction of the wall surface and the slab at the same time by combining a portion of the slab formwork with the hinge to enable folding.

In addition, another object of the present invention to provide a wall slab construction formwork and construction method to improve the work productivity by forming a wall formwork baffle to a size corresponding to the size of the wall surface.

In addition, another object of the present invention is to provide wheels to the upper and lower formwork to facilitate transport, to provide a wall slab construction formwork and construction method that improved the safety of the work.

In addition, another object of the present invention by attaching a synthetic resin material on one side of the upper and lower formwork to achieve the smoothness of the wall surface and the slab surface to improve the quality, and also to facilitate the wall slab construction formwork and its construction In providing a method.

In addition, another object of the present invention is to provide a leveling formwork at the bottom formwork to maintain a constant height of the ceiling, to provide a wall slab construction formwork and construction method that facilitates the demoulding and installation.

1 is an overall perspective view showing an embodiment configuration of the formwork for building wall slabs according to the present invention;

2A and 2B are front and side views of the formwork for building wall slabs according to the present invention;

3 is a perspective view showing the configuration of a leveling mechanism according to the present invention;

4 is a front view showing the configuration of the panel support mechanism according to the present invention;

5 is a cross-sectional view showing a state of forming and demoulding a wall surface using the formwork of the present invention;

6 is a state of transport of the formwork according to the present invention;

7A to 7F are construction flowcharts of the formwork for building wall slabs according to the present invention.

Explanation of symbols on the main parts of the drawings

1: upper formwork 2: lower formwork

3: first hinge 4: leveling mechanism

5: length adjusting mechanism 11: frame

12 plywood 13: synthetic resin material

14 slab bracket 15 transport caster

The present invention, the upper member and the lower member having a predetermined size to achieve the above object; And it provides a form for building the wall slab comprising a means for connecting the upper member and the lower member to be foldable.

In addition, the present invention provides a first step of determining the required height of the ceiling at the bottom surface to adjust the leveling mechanism to match the horizontal height at the bottom surface; A second step of placing a lower formwork on an upper surface of the leveling mechanism and setting up an upper formwork; A third step of adjusting the length of the length adjusting mechanism to the bottom surface so that the vertical heights of the upper and lower members are maintained; A fourth step of adjusting the top member and the bottom member to the vertical position and then fixing the length adjusting means to the bottom surface with bolts; A fifth step of supporting the ceiling slab on the horizontal member of the upper member; And a sixth step of forming walls and slabs by placing concrete on the upright upper and lower formwork and the ceiling.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 is an overall perspective view showing an embodiment configuration of the formwork for building wall slabs according to the present invention; 2A and 2B are front and side views of the formwork for building wall slabs according to the present invention; 3 is a perspective view showing the configuration of a leveling mechanism according to the present invention; 4 is a front view showing the configuration of the panel support mechanism according to the present invention; 5 is a cross-sectional view showing a state of forming and demoulding a wall surface using the formwork of the present invention; 6 is a state of transport of the formwork according to the present invention; 7A to 7F are construction flowcharts of the formwork for building wall slabs according to the present invention.

In the drawing, 1 is the top formwork, 2 is the bottom formwork, 3 is the first hinge, 4 is the leveling mechanism, 5 is the length adjusting mechanism, 11 is the frame, 12 is plywood, 13 is synthetic resin, 14 is slab bracket, 15 is for transport Caster, 21 is fixed panel, 21a is horizontal panel, 21b is vertical panel, 22 is moving piece, 23 is second hinge, 24 is bracket, 25 is fixing bar, 25a is male thread, 25b is guide worker, 26 is moving Bar, 27 is position fixing bar, 28 is adjustment screw, 29 is handle, 31 is first supporting member, 32 is second supporting member, 31a, 32a is hollow bar, 31b, 32b is variable bar, 31c, 32c is Protrusion, 31d, 32d is fixed piece, 33 is fixed member, 34 is third hinge, 35 is fixed bolt, 36 is wall surface, 37 is panel, 38 is slab support mechanism, 39 is ceiling slab, 41 is architecture, 42 Are wire ropes, and 43 are tower cranes, respectively.

Formwork for building wall slabs and construction method thereof according to the present invention is to implement a high-quality wall surface and slab surface at the same time, while simplifying the installation time, dismantling, assembly, in this embodiment Figures 1 and 2 As shown in the upper formwork (1) and the lower formwork (2) having a predetermined size is provided, the upper formwork (1) and the lower formwork (2) is connected by a first hinge (3) to be foldable The upper formwork (1) and the lower formwork (2) is made of a combination of one to two so as to have a size that can cover the entire wall surface.

Here, the upper formwork 1 and the lower formwork (2) includes a frame 11 forming a rectangular frame of a predetermined size, and means for covering one surface of the frame 11 and forming a wall surface according to the concrete placing, At this time, the wall surface forming means may be formed only of the plywood itself, but in this embodiment, it is easily demolded from the wall and smoothly formed on the wall surface so that the plywood 12 covering the frame 11 can be obtained. The synthetic resin plate 13 having a thickness is padded and installed, wherein the synthetic resin plate is made of an ABS resin plate.

In addition, the upper side of the upper die (1) is mounted on the slab bracket 14 extending by a predetermined length in the transverse direction, the slab bracket 14 is installed in the longitudinal direction, and also in a direction perpendicular to the corner member Install and install the plywood on it to complete the installation of the ceiling slab.

In addition, the square corners of the upper formwork 1 and the lower formwork 2 has a structure in which the transport caster 15 is mounted to facilitate transport after folding. At this time, the transport caster 15 has a structure that can be folded and unfolded, and also has a structure capable of changing the 360 ° direction.

On the bottom of the lower formwork 2 is mounted a leveling mechanism 4 which supports it and adjusts the height from the bottom to the required ceiling.

The leveling mechanism (4) is to adjust the horizontal height of the floor according to the determination of the required height of the ceiling on the floor surface, and to place the lower formwork on the top, to secure the demolding space when dismantling the formwork It would be.

When the configuration thereof is described in detail, the leveling mechanism includes two horizontal members 21a, one side of which is fixed to the bottom surface as shown in FIG. 3, and two vertical uprights mounted at the horizontal members 21a at predetermined intervals. Between a fixed panel 21 having a member 21b, a movable piece 22 fitted between the vertical member 21b of the fixed panel 21, and moving in accordance with a required height; It is connected to one side, the pedestal 24 is coupled by the hinge 23 so as to be rotatable, and is installed upright on the horizontal member (21a) of the fixed panel 21, while adjusting the length of the pedestal 24 Means for supporting the bottom of the head).

The pedestal support means has a male screw 25a formed on the outer circumferential surface by a predetermined length, and has a hollow fixing bar 25 having a guide hole 25b vertically penetrated therein, and is inserted into the fixing bar 25 to move up and down. While supporting the bottom of the pedestal 24 and the through-hole formed in the transverse direction at the predetermined position 26, the guide hole 25b of the fixed bar 25 is fitted into the through-hole of the movable bar 26 Position fixing bar 27 for fixing the position of the moving bar 26 while moving along the (), and an adjustment screw that is fastened to the male screw 25a of the fixing bar 25 and supports the position fixing bar 27 ( 28). At this time, the outer circumferential surface of the adjustment screw 28 is provided with an operation handle 29 protruding horizontally so that the operator can easily turn the adjustment screw 28.

On the other hand, as shown in Figure 4, the upper die (1) and the lower die (2) is a length adjusting mechanism (5) to maintain the vertical plane, the length adjusting mechanism (5) is one end of the upper die ( It is fixed at a predetermined position of 1), the first support member 31 made of a hollow bar (31a) and the variable length bar (31b) inserted into it so that the length can be adjusted, and one end of the lower die (2) The second support member 32 is fixed to the position, and made of a hollow bar (32a) and the variable length bar (32b) is inserted into it and sliding sliding so as to adjust the length, the first support member 31 and the second The third hinge is composed of a fixing member 33 for connecting the other end of each of the supporting members 32, the first and second supporting members 31, 32 to be rotatable in the fixing member 33 34 is provided.

Here, the length-variable bars 31b 32b of the first and second support members 31 and 32 are provided with engaging protrusions 31c and 32c at predetermined intervals, so that the length-variable bars 31b and 32b are hollow bars ( The insertion and withdrawal at 31a and 32a can be adjusted by the action of being caught and fixed by the locking projections 31c and 32c, and the length is changed by the fixing pieces 31d and 32d fitted to the hollow bars 31a and 32a. The bar 31b and 32b are fixed.

In addition, when the first and second support members 31 and 32 hold the upper die 1 and the lower die 2, the fixing bolt 35 is fixed to fix the position to the bottom surface. Fixing member 33 is fixed to the bottom surface.

Formwork of the present invention having the configuration as described above is erected using the length adjusting mechanism 5 in the state as shown in Figure 5 and then to cast concrete to form a wall surface 36, and also the wall surface ( After curing the curing of 36), the leveling mechanism 4 is dismantled in the reverse order of the installation of the formwork to secure the demolding space, and the upper formwork 1 and the lower formwork 2 are folded and demolded.

In FIG. 5, reference numeral 37 denotes a panel, 38 denotes a slab support mechanism, and 39 denotes a ceiling slab.

The construction process using the formwork of the present invention configured as described above will be described with reference to FIGS. 7A to 7F.

First, after performing the ink line on the bottom surface, the operator determines the required height of the ceiling at the bottom surface and adjusts the horizontal height from the bottom surface by adjusting the leveling mechanism 4 (FIG. 7A). Then, the lower formwork 2 is placed on the upper surface of the leveling mechanism 4 and the upper formwork 1 is erected (FIG. 7B). At this time, the lower formwork 2 is placed on the leveling mechanism 4. Also, it is tightly connected using a separate clamp to maintain the position of the lower formwork (2).

Then, the length adjusting mechanism 5 is attached to the upper and lower molds 1 and 2 to be supported once (FIG. 7C), and then the first supporting member 31 and the second support of the length adjusting mechanism 5 are supported. By adjusting the length of the member 32, the wall formwork is erected in accordance with the verticality of the upper formwork 1 and the lower formwork 2, and the fixing member 33 of the length adjusting mechanism 5 is carried through the fixing bolt 35. Fix to the bottom surface with (Fig. 7D). When the wall formwork (1, 2) is erected, the installation of the wall formwork is completed by installing the opposite side formwork and the formwork for the formwork (not shown). Then, when the installation of the wall formwork is finished, the angle is installed in the slab bracket 14 installed in the upper formwork (1), and the installation of another angle on the right angles on it and then laid a plywood thereon to complete the slab formwork installation.

The concrete is poured into the completed form as described above to cure.

On the contrary, when demonstrating the process of demolding the formwork, as the concrete is cured, first dismantle the formwork for the formwork, and then dismantle the clamp to fix the wall formwork (1, 2) and the leveling mechanism (4).

The handle 29 is formed integrally with the adjusting screw 28 after the position fixing bar 27 of the leveling mechanism 4 is separated from the through hole of the moving bar 26 by using a mechanism such as a hammer. To loosen the adjusting screw 28 and then move the lowering bar 26. Accordingly, the base 24 supporting the wall formwork is rotated downward to secure a lower space so that the wall formwork 1 and 2 can be demolded. In this state, lengths of the first and second supporting members 31 and 32 of the length adjusting mechanism 5 are adjusted to separate the wall formwork from the wall surface, and the upper formwork 1 and the lower formwork 2 are folded. Then, the transport caster 15 mounted on the formwork blind spot to the bottom and remove the length adjusting mechanism (5).

In this state, as shown in FIG. 6, the operator pushes the upper and lower formwork 1 and 2 to the open position outside the building 41, and then the hinge part of the wall formwork is moved to the wire rope 42. On top of it, it moves to the next upper part with equipment such as tower crane (43). In addition, the slab formwork supported by the slab bracket of the upper formwork is demolded in the order of removing the support support timber and removing the lumber plywood two to three days after demolding the wall formwork. By repeating every floor like this, walls and slabs are built up to a predetermined number of floors.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, according to the present invention by enlarging one formwork panel to accommodate the front surface of the wall, it is possible to drastically shorten the work time and reduce the cost at the time of formwork installation and demoulding. In addition, since the number of joints between the panels is small, the work of repairing the finishing surface for grinding the joint lines after concrete curing is greatly reduced, and since the concrete walls and slabs can be cast at the same time, the joint surface is excellent in maintaining rigidity and leveling mechanism. And by using the length adjusting mechanism, the installation and demoulding can be done quickly to improve the construction work efficiency. Accordingly, the construction cost can be reduced by shortening the building air, and since the concrete attachment surface is made of synthetic resin, demolding can be easily performed and the smoothness of the wall surface can be achieved, thereby improving the quality of the wall slab.

Claims (14)

Upper and lower members having a predetermined size and Formwork for building wall slabs comprising a means for connecting the upper member and the lower member to be folded. The method of claim 1, Supporting the bottom surface of the lower member, the wall slab building formwork further comprises a means for adjusting the height from the bottom surface to the required ceiling. The method of claim 2, The height adjusting means A fixed panel having a horizontal member having one side fixed to the bottom surface, and two vertical members mounted upright at a predetermined distance from the horizontal member; A moving piece sandwiched between the vertical members of the fixed panel and moved in accordance with a required height; Pedestal connected to one side of the moving piece; A hinge connecting the pedestal to the rotatable piece; It is installed upright on the horizontal member of the fixed panel, the wall slab building formwork, characterized in that it comprises a means for supporting the bottom of the base while adjusting the vertical length. The method of claim 1, A first support member whose one end is fixed to a predetermined position of the upper member and whose length is adjustable; A second support member whose one end is fixed to a predetermined position of the lower member and whose length is adjustable; A fixing member connecting the other end of each of the first and second support members; The wall slab building formwork further comprises means for engaging the first and second support members in the fixing member to be rotatable. The method of claim 4, wherein Forming wall slabs form further comprises means for fastening so that the fixing member is fixed to the bottom surface. The method of claim 1, Wall slab building formwork characterized in that it further comprises a means for supporting the ceiling slab mounted horizontally on the upper side of the upper member. The method of claim 1, The upper member and the lower member A frame forming a rectangular frame of a predetermined size, A formwork for building wall slabs, comprising means for covering one surface of the frame and forming a wall surface according to concrete pouring. The method of claim 7, wherein The wall surface forming means is a wall slab building form, characterized in that formed of plywood. The method of claim 7, wherein The wall surface forming means Formwork for building wall slabs, characterized in that it comprises a plywood covering the frame, and a synthetic resin plate is added to the plywood to a predetermined thickness. The method of claim 7, wherein The wall surface forming means Formwork for building wall slabs comprising a steel plate covering the frame. The method of claim 9, The synthetic resin board is a formwork for building wall slabs, characterized in that made of ABS resin material. The method of claim 1, Formwork for building wall slabs, characterized in that the transport caster is mounted on the square corner side of the upper member and the lower member. In the construction method of the wall slab construction formwork, A first step of determining the ceiling height from the bottom to match the horizontal height from the bottom by adjusting the leveling mechanism; A second step of placing a lower formwork on an upper surface of the leveling mechanism and setting up an upper formwork; A third step of adjusting the length of the length adjusting mechanism to the bottom surface so that the vertical heights of the upper and lower members are maintained; A fourth step of fixing the length adjusting means to the bottom surface with a bolt to maintain the vertical position of the upper member and the lower member; A fifth step of supporting the ceiling slab on the horizontal member of the upper member; And The construction method of the wall slab building formwork comprising the sixth step of forming a wall and ceiling slab by placing concrete on the upright and down-end formwork and the ceiling. The method of claim 13, The second step comprises the step of tightening the leveling mechanism and the lower formwork using a separate clamp construction method of the wall slab construction formwork.