KR0142482B1 - Process for constructing elevator core walls and an elevator core wall form - Google Patents

Abstract

The present invention relates to a formwork for building a cavity substructure for elevator installation using a link and a driving device thereof, and a construction method using the formwork. More specifically, the present invention relates to a plate panel member for constructing four four-sided walls, and a plate panel. The corner panel member for constructing the corners between the members and the plate panel member and the corner panel member to fold the hinge hinged member of each of the two panels to the left and right sides in a hinged state to fold the hinge It has a link means and a driving means such as a hydraulic device for releasing and installing or dismounting each panel member by operating the link means, and speaking under the upper work bench and upper work bench installed directly below the plate panel member. It is equipped with a lower floor workbench, which is used to drive and link means such as hydraulic system To be so by the deployment of each panel member to temporarily give enabling rapid installation or stripping the formwork for building cavity walls all around the elevator installation.

Description

Formwork used to form elevator cavity walls and construction method using the formwork

1 is an overall perspective view of a state in which the formwork is partially cut in accordance with the present invention

(A) and (b) of FIG. 2 are partially enlarged cross-sectional views of the present invention, where (a) is a cross-sectional view of a completed installation state, and (b) is a cross-sectional view of a state demolded from a wall.

3 is a longitudinal sectional view of the form according to the present invention installed on the site

(A), (b), (c) of FIG. 4 are process drawings of the construction method which concerns on this invention.

* Explanation of symbols for main parts of the drawings

1: plate panel member 2: corner panel member

3,4,5,6: connecting member 7,8: hinge panel member

9,10: hinge 11: wire rope

12,13: left and right post member 14: reinforcement post member

15,16: up and down link fixing bar 17,18: horizontal link means

19: drive device 20, 21: upper and lower piston means

22: Link link 23: Upper floor workbench

24: power means 25: unit panel for outer wall formation

26: lower floor work platform 27: connecting means

28: ladder 29: fastening bolt

101,102,201,202: inner side bent ends

103: reinforcement piece 104: hook

121,122: post member extension 122,132: space

151,152,161,162: Bracket 175: Joint part

171: vertical connection bracket 172,182: center link member

173,183: Horizontal link member 211: 4-way bracket

202, 212: vertical link member 261: pulley

W: Concrete wall W1: Lower level elevator entrance

[Field of Invention]

The present invention relates to a formwork for building a cavity subwall for elevator installation using a link and a driving device thereof, and a construction method using the formwork. More specifically, the present invention relates to a formwork used to form a cavity wall for an elevator. A plurality of formwork panels connected and a drive mechanism connected to the formwork panel, the formwork being deformable between an expanded state for wall forming and a contraction state for stripping by operation of the drive mechanism and a construction method using such formwork It is about.

[Background of invention]

In general, in the construction of structures such as buildings, construction of walls or floors of buildings has no difficulty in construction of formwork, etc., depending on the sufficient securing of the working space and good working conditions.

However, the construction of elevator walls different from the general walls or floors of the building is carried out in a vertically penetrating space, and the space is usually narrow, not exceeding 2.5m in all directions. For the construction of the wall, it was necessary to install or dismantle the formwork under poor conditions.

However, despite such poor working conditions, in the conventional formwork for elevator cavity wall construction and its construction method, it is generally hypothesized to cross pipes or rods on the cavity and lay plywood on top of it. Forming work scaffolding in the form of a main form, and a worker-oriented construction method of assembling or disassembling the formwork according to the size of the elevator installation wall by assembling a small formwork panel called a unit panel (aka euro product) on the site Was adopting.

However, this construction method requires a lot of manpower and labor due to the installation and dismantling of the formwork by a worker's manual work in a narrow space, and requires a lot of working time, resulting in a long air. In addition to the uneconomical problems, pipes and work that have been hypothesized to work in unstable conditions, such as installing pipes in the space and mounting workboards such as plywood, are installed in the installation and installation of work benches. When the scaffold was dropped, there were many problems in safety, such as a worker falling and causing a personality accident.

[Description of the Prior Art]

Efforts have been made to solve the problem of installation and removal of formwork depending on the manual work as described above, and an example thereof will be described next. Korean Patent Application Publication No. 95-1044 discloses a formwork construction method and a device assembled in a folding manner to enlarge and contract four walls. According to this device, in the state in which the formwork is enlarged, the external formwork is assembled by placing the external formwork while supporting the formwork fixed to the upper wall of the lower vertical hollow structure and dismantle the external formwork after the curing of the wall is completed. Then, the four walls are shrunk and peeled from the poured wall surface, and then lifted by a height by means of form lifting means to enlarge the four walls and continuously cast the upper wall surface, thereby solving the problems of the conventional manual work. However, in actual construction, the device has a structure in which the enlarged formwork can contract by a considerable displacement in one direction but hardly contracts in the other direction perpendicular to the direction. There is a problem that it cannot be sufficiently separated from the constructed wall. That is, not only is it difficult to lift the formwork for wall laying in the next layer in a state in which the formwork is not sufficiently separated from the constructed wall, but also the defect is caused by scratching the formwork wall during the lifting operation. In addition, since this device is a type of folding in the shape of an arc near the corner of the formwork, the corner of the form is tightly fitted into the corner of the wall is not folded well, or scratches the wall when folded have.

On the other hand, the Republic of Korea Utility Model Application Publication No. 95-25230 also discloses a rigid formwork assembled in a folding manner to expand and contract. Each panel constituting the formwork is folded at each corner and middle portion of the formwork, and is connected to a central drive through eight turnbuckles. In this formwork, the hinge installed at the corner part is exposed to the surface of the formwork (surface in contact with the concrete to be cast), so that the formwork has irregularities on the surface of the formwork, and the unevenness is formed on the constructed wall surface. Not well separated from the wall after, there is a problem that the wall is scratched during the separation operation. In addition, since the corner portion is folded, there is a problem in that the eight turnbuckles must be adjusted one by one in order to maintain the right angle at the corner portion. Moreover, when shrinking the formwork, in order for the formwork to be spaced at a sufficient distance from the constructed wall, the displacement of the drive device must be quite large, which means that the displacement of each intermediate part during the shrinkage of the formwork will level the turnbuckles by the drive device. Although close to the directional displacement, the displacement of each corner is considerably smaller than the horizontal displacement of the turnbuckle. In conclusion, the drive must be moved with large displacement to remove the formwork.

In this prior art, it should be noted that many problems are caused, especially at the corners of the formwork.

[Summary of invention]

In order to solve the problems of the prior art as described above, the corner part of the formwork is fixed at a predetermined angle so that the corner part does not fold even when the formwork shrinks, and therefore, the corner part problem during installation and removal of the formwork. It is an object of the present invention to provide a formwork for use in forming a cavity wall for an elevator which does not cause an increase.

Another object of the present invention is to provide a formwork which is well separated from the constructed wall upon shrinkage of the formwork and does not leave scratches on the constructed wall.

Another object of the present invention is to provide a formwork which can be spaced apart from the constructed wall by a sufficient distance even when the formwork is not largely displaced.

The present invention is a formwork used to form a cavity wall for an elevator, comprising a plurality of formwork panels connected to the hinge and a drive mechanism connected to the formwork panel, the expanded state and stripping for wall formation by operation of the drive mechanism A formwork that can be deformed between contracted states, comprising: a plurality of central plate panel members for forming a wall portion of a cavity, a plurality of corner panel members for forming a corner portion of a cavity, a center plate panel member and a corner panel member A plurality of hinge panel members interposed therebetween and hinged to each of these central plate panel members and corner panel members, a link member connected to the central plate panel member, and driving means for operating the link member back and forth; Provides a formwork characterized by.

In one preferred aspect of the present invention, the formwork further includes an upper workbench installed directly below the central plate panel member, and a lower workbench suspended from the upper workbench.

In another aspect of the present invention, the formwork further includes a plurality of post members fixed in the height direction of the center plate inside the center plate panel member and extending below the bottom of the center plate, wherein the link member is disposed in the post member. It is connected.

The present invention also provides a plurality of central plate panel members for forming the wall portion of the cavity, a plurality of corner panel members for forming the corner portion of the cavity, and interposed between the central plate panel member and the corner panel member and both sides thereof. A construction method for forming a cavity wall for an elevator using a formwork including a plurality of hinge panel members hinged to a central plate panel member and a corner panel member, the inner formwork being suspended by a positive steam and disposed at a predetermined position. Step, extending the inner formwork by operating the link member connected to the center plate panel member by the driving means back and forth, forming a cavity between the inner formwork and the outer formwork by installing the outer formwork for wall forming, the inner formwork and Fixing between the outer formwork with a fastening bolt, the inner formwork The construction method includes the steps of injecting and hardening concrete into the cavity between the outer and outer molds, removing the fastening bolts, contracting the inner molds by the operation of the driving mechanism, and raising the inner molds by increasing the amount of the inner molds. to provide.

Objects of the present invention as described above, and other objects of the present invention not otherwise mentioned, will become apparent from the following detailed description of preferred embodiments according to the present invention with reference to the accompanying drawings.

[Description of Preferred Embodiment]

Hereinafter, preferred embodiments of the formwork and the construction method using the formwork according to the present invention will be described in detail.

1 is a perspective view showing a part of the entire formwork according to the present invention cut away, Figure 2 (a), (b) is a cross-sectional view of the formwork in the present invention and Figure 3 is a state in which the formwork of the present invention is installed This is a longitudinal cross-sectional view of.

As shown in Figures 1 to 3, the formwork according to the present invention constructs a central plate panel member (1) and wall edges for building a wall having the same height as the height of the first floor of the building in four rooms And a corner panel member 2 for connecting each plate panel member 1 and the inner bent ends 101, 102, 201, and 202 of both sides of the corner panel member 2, respectively. The members 3, 4 and 5 and 6 are attached and both sides of the hinge panel members 7 and 8 are connected via the connecting members 3, 4 and 5 and 6. The hinges 9 and 10 are provided so that they can be folded, respectively.

In addition, the inner surface of the central plate panel member (1) is provided with a plurality of reinforcing pieces 103 of each pipe shape in the transverse direction and the hook for hooking the wire rope 11 connected to the heavy lifting machine (not shown) at the upper end 104 is formed on the left and right, the reinforcing piece 103 on each pipe, the left and right post members 12, 13 consisting of two channels are extended to the height of the two floors of the building generally two, 121, 131 has a length extending downwardly, and the channels forming the left, right post members 12, 13 are spaced apart from each other, and the space 122 to which the fastening bolt 29 to be described later will be fastened. , 132 is formed, and the reinforcing post member 14 for reinforcing the central plate panel 1 therebetween also has the same shape as the left and right post members 12 and 13. Vertical channels are installed at the same height as the center plate panel member (1) at regular intervals It can control.

In addition, the upper and lower link fixing bars 15 and 16 are provided on the left and right post members 12 and 13 and the reinforcement post member 14 on the vertical channels provided in the center plate panel member 1, and the upper and lower links. Brackets 151, 152 and 161, 162 for connecting the horizontal link means 17, 18, which will be described later, are formed at the left and right ends of the link fixing bars 15, 16, and the center plate panel member having the above configuration. (1), corner panel member (2), connecting member (3) (4), (5) (6), hinge panel member (7), (8) and left and right post members (12, 13) and up and down Link fixing bars (15, 16) are formed in four sets to form four sides of the formwork.

In addition, as shown in FIGS. 1 to 2, (a) and (b), the two central plate panel members 1 adjacent to each other are formed on the upper and lower link fixing bars 15 and 16, respectively. It is connected by horizontal link means (17, 18) through the right brackets (151, 152) and (161, 162).

The horizontal link means 17 and 18 respectively have horizontal link members 173 and 183 connected to both ends of the central link members 172 and 182 and the central link members 172 and 182 having the vertically connected brackets 171 and 181 disposed therein. ) And its horizontal link members 173 and 183 are connected to the left and right brackets 151 and 161 of the upper and lower link fixing bars 15 and 16 of the central plate panel member 1, respectively. In the vertical connection brackets 171 and 181 of the center link members 172 and 182, vertical link members 202 and 212 connected to the four-way brackets 201 and 211 mounted on the upper and lower piston means 20 and 21 of the driving device 19 located at the center. ) Are each connected. The central link members 172 and 182 have at least one joint part 175, and the joint part 175 may be bent only inward.

Therefore, the formwork of the present invention, as shown in (a), (b) and FIG. 3 of FIG. 2, operates the drive device 19 to extend and operate the upper and lower piston means 20, 21 to vertical links. The central link members 172, 182 of the horizontal link means 17, 18 are pushed outward by the vertical link members 202, 212 which push the members 202, 212 outwards, and thus the horizontal link members 173 And (183) is pushed by applying pressure to the center plate panel member (1), according to the hinge panel members (7), (8), which are spread between the center plate panel member (1) and the corner panel member (2) ) Is developed in a horizontal state to form a four-sided wall of the form at a time, on the contrary, to pull the vertical link members (202, 212) inward by pulling the upper and lower piston means (20, 21) with the driving device (19). When the link members (172, 182, 173, 183) of the vertical link means (17, 18) connected thereto are bent inward from the joint portion (175). Move to the side and accordingly pull out the central plate panel member 1 inward to separate from the concrete wall (W) and at the same time to pull the hinge panel members (7,8) to the hinge panel member by the double hinge (9,10) (7, 8) is to be in a vertical state, and the connected corner panel member (2) is detached from the corner portion to be demolded.

In addition, as shown in FIGS. 1 and 3, the middle right and lower sides of the left and right post members 12 and 13 of the two center plate panel members 1 facing each other among the front and rear left and right four center plate panel members. The connecting link 22 is rotatably installed on one end of the connecting link 22 and the upper working platform 23 is spoken. The upper working platform 23 is generally formed to be the same as or slightly smaller than the inner space formed when the central plate panel member 1 is completely folded, and the upper and lower piston means 20 and 21 are mounted on the upper working platform 23. It is used as a workbench for installing power means 24 such as an air pump or a motor for driving a driving device 19 for driving, and in addition, each panel member of the present invention can be deployed to form or disassemble a formwork. The plate panel member 1 and the existing outer wall forming unit panel 25 is to be used to perform the task of fastening or dismantling the bolt.

In addition, the lower floor work platform (26) provided with a pulley (261) in close contact with the constructed pupil portion wall (W) below the left and right post members (12, 13) corresponding to the second floor of the upper floor work platform (23). ) And the lower floor work platform 26 is connected to the upper floor work platform 23 by connecting means 27 such as wire ropes, and a ladder 28 is installed between the upper and lower floor work platforms 23 and 26. Virtual and lower floor work platform (23, 27) to be able to work while working. Therefore, the lower floor work platform 26 is located on the lower floor elevator entrance (W1) side at the time of construction completion (concrete placement, hardening completed), so that the worker's entrance and exit is smooth and free, and the lower floor work platform 26 is pulley 261. It is a workbench that can be stably attached to the concrete wall (W), and the safety is given, so that the interior or finishing of the wall surface of the lower layer can be stably, quickly and smoothly performed.

In the present invention as described above, the height of the center plate panel member 1, the corner panel member 2 and the hinge panel members 7, 8 should be the same as the height of the first floor of the building to be constructed and the left and right post members 12 The total height including the extension parts 121 and 131 of 13 may be configured to have two floor heights.

Referring to (a), (b), (c) and (d) of Figure 4 of the accompanying drawings, the construction method of the wall for the elevator installation cavity using the form of the present invention configured as described above is as follows.

In the first process, since the bottom floor of the building is formed, the lowest floor may be formed by a general formwork method.

As described above, the construction method according to the present invention will be described after the lowest layer is formed.

The wire rope 11 is placed on the hook 104 installed on the central plate panel member 1 by putting the formwork of the present invention into the elevator installation cavity E in a state in which one floor Bn is pre-worked as described above. Fasten the top of the formwork with positive steam (not shown), adjust the level, and then the worker enters through the elevator entrance hole installed in the lower work platform 26, and then fastens the lower floor part (Bn). Fastening bolts 29 pass through the spaces 122 and 132 formed between the panels of the lower extension parts 121 and 131 of the left and right post members 12 and 13 in the holes through which the inner and outer wall formwork panel fastening bolts were penetrated. Fix it to give an overall sense of stability (see (a) in Figure 4).

Afterwards, the operator operates the drive autonomous 19 on the lower platform 26 to operate the upper and lower piston means 20 and 21 and the link means 17 and 18 so that the four central plate panel members 1 and the corner plate are operated. Members (2), the hinge panel members (7, 8) to develop the formwork for building the inner wall of the present invention and then combines the conventional panel (25) commonly used in the outer general building workspace of the unit, The space between the channels of the left and right post members 12 and 13 and the reinforcement post member 14, which are laid in the vertical direction of the center plate panel member 1 according to the fastening bolt hole drilled in the panel 25 ( After inserting the fastening bolt 29 between the 122 and 132 through the unit panel 25 and the formwork of the present invention to install the formwork, and then cast concrete in the interspace to the upper layer (Bn-1) wall (W) ) (See (b) in Figure 4).

When the upper concrete is cured after the construction as described above, after lowering the concrete wall W and the fastening bolts 25 penetrated through the extension parts 121 and 131 outside the left and right phosphor members 12 and 13, On the other hand, while finishing the lower inner wall part, the worker moves to the upper floor work platform 23 through the lower floor work platform 26, the ladder 28, and the existing unit panel 25 for building the formwork and exterior wall of the present invention for building the inner wall of the elevator. After disassembling the fastening bolts 29 fastened to each other, the drive device 19 is operated to move the central plate panel member 1, the corner panel member 2, and the hinge panel members 7 and 8 on the four sides of the wall. Temporarily demolding from (W) results in the construction of the wall for mounting the elevator (W) of one floor (refer to (c) in FIG. 4).

After the dies thus demolished are moved upwards to the next upper layer Bn-2 by positive steam (not shown) (see (d) of FIG. 4), in the description of (a) to (c) of FIG. The construction of the upper floor of one floor is completed as described above, and thus, the operation is repeated for each floor to construct a cavity wall for installing the elevator up to a predetermined height, in which case the entire formwork of the present invention starts up. Although the formwork structure (center plate panel member, etc.) located in the upper part is located in the space within the cavity, the pulley 261 installed in the lower work platform 26 located in the lower part slides in a state in close contact with the inner surface of the wall. The upward movement in this stable state prevents a phenomenon in which the upper formwork impacts on the wall and the like, thereby moving upward in a stable state.

As described above, the present invention can quickly and safely install and demoulding the cavity substructure for lifting elevator installation by power at once, thereby improving construction work efficiency and significantly reducing construction air, thereby significantly reducing construction costs. Forming and dismantling work can be carried out in a stable state with sufficient working space, and the interior wall finishing work can be carried out at the same time to prevent safety accidents such as worker's misunderstanding caused by conventional construction methods. I have it.

Claims (10)

A formwork used to form a cavity wall for an elevator, comprising: a plurality of formwork panels hinged and a drive mechanism connected to the formwork panel, wherein the form is extended and removed for wall formation by operation of the drive mechanism. A formwork that can be deformed between contracted states, comprising: a plurality of central plate panel members for forming a wall portion of the cavity, a plurality of corner panel members for forming a corner portion of the cavity, the center plate panel member and the corner A plurality of hinge panel members interposed between the panel members and both sides thereof hinged to the center plate panel member and the corner panel member, a link member connected to the center plate panel member, and driving means for operating the link member back and forth. Dies comprising a. The formwork of claim 1 wherein the drive means comprises a pneumatic actuator. The formwork according to claim 1 wherein the drive means comprises an electric motor. The formwork according to claim 1 wherein the drive means comprises a hydraulic actuator. The formwork according to claim 1, further comprising: an upper floor workbench installed directly below the central plate panel member, and a lower floor workbench suspended from the upper floor workbench. The formwork according to claim 5, wherein the upper workbench includes a support member connecting the support plate and the lower end of the central plate panel member to the support plate. The formwork according to claim 5, wherein the lower floor work platform includes a support plate suspended on the upper floor work platform and a pulley installed at an outer end of the support plate to be in close contact with the wall surface of the cavity. A carpenter's central plate panel member for forming the wall portion of the cavity, a plurality of corner panel members for forming the corner portion of the cavity, and interposed between the central plate panel member and the corner panel member, both sides of which are these center plate panels. A construction method of forming a cavity wall for an elevator using a formwork comprising a plurality of hinge panel members hinged to a member and a corner panel member, the method comprising: suspending the inner formwork with positive steam and placing the inner formwork at a predetermined position. And extending the inner formwork by operating the link member connected to the center plate panel member by a driving means back and forth, and forming a cavity between the inner formwork and the outer formwork by installing an outer formwork for wall forming. Between the inner die and the outer die Fixing with a binding bolt, injecting and hardening concrete into a cavity between the inner mold and the outer mold, removing the fastening bolt, and shrinking the inner mold by the operation of the driving mechanism; Construction method comprising the step of raising the inner formwork with positive steam. The apparatus of claim 1, further comprising a plurality of post members fixed in a height direction of the double-angular plate inside the center plate panel member and extending below the bottom of the center plate, wherein the link member is connected to the post member. Inner formwork, characterized in that. The cavity of the elevator according to claim 8, further comprising a plurality of host members fixed inside the center plate panel member in a height direction of the center plate and extending below the bottom of the center plate. A construction method for forming a wall, wherein the inner mold is expanded by the operation of the drive mechanism, and then a part of the post member extending below the lower end of the center plate is fastened to the cavity wall surface of the lower layer. Construction method further comprising the step of fixing.