KR102620613B1 - Method for constructing prefabricated deck unit for elevator core construction - Google Patents

Abstract

The present invention relates to a prefabricated deck construction method for elevator core construction, which forms a deck so that workers can perform work for elevator core construction while safely stepping and moving in the space of the elevator core, and at low cost. The purpose is to use a deck that is easy to operate and install and dismantle.
The prefabricated deck construction method for elevator core construction according to the present invention is a prefabricated deck for elevator core construction that uses the materials of the lower floor support, the lower floor joist, the upper floor support, and the upper floor joist, and shares the scaffolding between the lower floor and the upper floor. A construction method comprising: a first step of forming support insertion grooves on both opposing walls of a concrete lower-floor elevator core; Install one or more lower floor supports along the direction crossing the lower floor elevator core by inserting and fixing both sides of the support into the support insertion groove formed in the first step, and then install two lower floor joists on the lower floor supports. The second step is to do; A plurality of scaffolds are installed on the joists of the lower floor installed in the second step, and the alignment ledge formed at the bottom of the scaffold is installed so as to overlap the inside of the joists of the lower floor, so that workers can construct the elevator core of the upper floor. A third step of forming a lower deck to enable; After completing the construction of the upper floor elevator core, the upper floor support is installed in the support insertion groove formed in the upper floor elevator core, then the upper floor joist is installed on the upper floor support, and the scaffold used on the lower floor deck is dismantled. It is installed on the joist of the upper layer, and the alignment ledge formed at the bottom of the scaffold is installed so as to overlap the inside of the joist of the upper layer to form an upper deck. The fourth step is to repeat the fourth step of forming the deck of the upper layer. A space is formed between the support and the joists of the upper floor through which the scaffolding can pass from the lower floor to the upper floor, and the scaffolding installed on the joists of the lower floor is transported one by one to the upper floor through the space from the lower floor, and then laid on the joists of the upper floor and installed. The supports and joists of the lower floor are dismantled and transported to construct the elevator core of the next floor.

Description

{Method for constructing prefabricated deck unit for elevator core construction}

The present invention relates to a method of constructing a prefabricated deck for elevator core construction, and more specifically, to the construction of a prefabricated deck for elevator core construction that improves the safety of workers by constructing a prefabricated deck on which workers can climb and work on the elevator core. It's about method.

This part only provides background information related to the content of this application and does not necessarily constitute prior art.

Generally, elevators are installed in buildings, and when constructing a building, an elevator core is secured as a space for installing the elevator.

The elevator core is a cavity that communicates vertically according to the total number of floors of the building, and is constructed sequentially from the lower floor to the upper floor in accordance with the structural construction of the building.

Therefore, during the construction of the elevator core, work such as installation and demolding of the inner formwork and removal of short materials is accompanied. Since these works can only be performed in the space of the elevator core, there is a deck within the elevator core where workers can stand and work. need.

Conventional methods of forming a deck within an elevator core include installing reinforcing bars and using an elevating workbench. In the former case, not only is it difficult to install and remove reinforcing bars each time, but it is also difficult to secure a structure to secure the reinforcing bars. In the latter case, there are problems with expensive manufacturing costs and high construction costs due to the use of equipment such as lifting machines.

As a patent document that confirms the background technology of the present invention, Patent No. 10-0140904 is made entirely of a rectangular parallelepiped, and connection pins with vertical holes in the center are formed along the circumference at predetermined heights, and a joint is integrated at the top. Vertical rods are attached, horizontal rods that support the vertical rods by inserting connecting pins into the connecting pins, a movable rod that is fixed by inserting into the connecting pins and extending outward, and is installed on the upper part of the horizontal rod and the movable rod. It consists of a footrest part, wherein the movable rod has an exterior fixed to a connecting pin, an inner pipe that is inserted into the exterior and moves horizontally, and the outer extension of which is supported on the inner surface of the concrete wall, and a movable rod that adjusts the movable length of the inner pipe. It is a scaffolding for an elevator pit that is composed of a control valve and is installed inside the elevator pit to support the internal formwork panel when pouring a concrete wall, while also allowing it to be used as a workbench when performing various works.

Registered Utility Model No. 20-0259433 forms a square support frame with a strut with a ring fixed at the top, horizontal beams, and reinforcement, and the movable strut can be moved in and out by adhering the adjustment screw screwed to the strut to the movable strut. The assembly support is fixed to the holder of the adjustment screw screwed to the cross beam of the square support frame, the assembly bar is fixed to the above assembly support, and the plywood is fixed to the assembly bar, and the assembly support, assembly bar, and plywood are moved inward and outward. It is a formwork device for constructing elevator passages in concrete buildings.

Registered Patent No. 10-0140904 Registered Utility Model No. 20-0259433

The present invention is intended to solve the problems described above, and forms a deck so that workers can perform work for the construction of the elevator core while safely stepping and moving in the space of the elevator core, and operates it at low cost. The purpose is to provide a prefabricated deck construction method for elevator core construction using a deck that can be easily installed and dismantled.

The prefabricated deck construction method for elevator core construction according to the present invention includes the first step of forming support insertion grooves on both walls facing the concrete lower floor elevator core; A second step of installing one or more supports along a direction crossing the lower elevator core by inserting and fixing both sides of the support into the support insertion groove formed in the first step; A third step of forming a deck member on the lower floor by installing a plurality of scaffolding using the support installed in the second step as a support base so that workers can work on constructing the elevator core on the upper floor; After completing the construction of the upper floor elevator core, the upper floor support is installed in the support insertion groove formed in the upper floor elevator core, and the scaffolding used in the lower floor deck member is dismantled and installed on the upper floor support to secure the upper floor deck member. It is characterized by comprising a fourth step of forming.

According to the prefabricated deck construction method for elevator core construction according to the present invention, a support insertion groove is formed in the elevator core to install a support, and a scaffold is prefabricated to form a deck member, so that workers can enter the elevator core safely without falling accidents. Various tasks can be performed, and only the support is installed in the support insertion groove of the elevator core, and the footrest is supported by the support, so installation work is very easy. Additionally, the footrest is made up of multiple small pieces, so it can be easily transported to the upper floor for construction of the next floor. Because it can be reinstalled, the constructability is very excellent, and in addition, it can be operated manually by workers in accordance with the construction of the elevator core without using equipment such as a lifting machine, which has the effect of reducing production and construction costs.

In addition, the present invention has the effect of improving quality and reducing the number of gap maintenance members used because it greatly helps maintain the verticality of the formwork.

Figure 1 is an example of a support insertion groove formed in an elevator core according to the prefabricated deck construction method for elevator core construction according to the present invention.
Figure 2 is an example of a core form for forming a support insertion groove according to the prefabricated deck construction method for elevator core construction according to the present invention.
Figure 3 is an example of a support installed according to the prefabricated deck construction method for elevator core construction according to the present invention.
Figures 4 to 6 are illustrations of supports applied to the prefabricated deck construction method for elevator core construction according to the present invention, respectively.
Figure 7 shows a prefabricated deck construction method for elevator core construction according to the present invention.
Figure 8 is a view showing an example of a worker working on a deck installed in an elevator core according to the prefabricated deck construction method for elevator core construction according to the present invention.
Figure 9 is a process diagram of an elevator core construction method using a prefabricated deck construction method for elevator core construction according to the present invention.
Figure 10 is an exploded perspective view of a deck member for the prefabricated deck construction method for elevator core construction according to the present invention.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. The terms described below are defined in consideration of the functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification.

The prefabricated deck construction method for elevator core construction according to the present invention consists of the steps of forming a support insertion groove on the wall of the elevator core - installing the support - installing the scaffold, and the method of removing the scaffold consists of the processes of separating the scaffold - separating the support. The specific process is as follows. The support 10, joist 20, and scaffold 30, which are materials for the present invention, are deck units (see Figure 10).

1. Formation of support insertion groove (see Figure 1).

A support insertion groove (2) is formed in the concrete constructed elevator core (1).

In the drawing, a total of four support insertion grooves (2) are preferably formed, two each on both opposing walls of the elevator core (1), and the two opposing support insertion grooves (2) are formed in the longitudinal direction of the support (10). It is used to insert and secure both sides separately. That is, two support insertion grooves 2 are formed per support 10, and the total number varies depending on the quantity of supports 10.

The support insertion groove 2 has a structure in which the facing direction is open so that the end of the support 10 can be inserted, and its shape, such as square or circular, is not limited, and its depth is also freely determined.

The support insertion grooves 2 can also be formed on the four walls of the elevator core 1 depending on the structure of the support 10.

The method of forming the support insertion groove (2) can be pre-construction or post-processing. As shown in Figure 2, pre-construction is performed on the inner surface of the core form (inner form) (3) for pouring concrete of the elevator core (1). By installing the block (4) to form the support insertion groove (2), when pouring concrete of the elevator core (1), the concrete is not filled to the size and structure of the block (4), thereby removing the core formwork (3). This naturally forms the support insertion groove (2).

Post-processing involves curing the concrete of the elevator core (1), demolding the core form, and removing part of the wall surface of the elevator core (1) to form the support insertion groove (2).

Both pre-construction and post-processing are possible as methods of forming the support insertion groove (2), but pre-construction is very advantageous compared to post-processing in that the support insertion groove (2) is naturally formed by the core formwork (3).

2. Support installation (see Figure 3).

After forming the support insertion groove (2) through the entire process, the support (10) is installed.

The support 10 is used to support the footrest, and is arranged in a direction crossing the inside of the elevator core 1, and both longitudinal sides are inserted and fixed into the support insertion grooves 2, respectively.

That is, when the support 10 is supported on the inner wall of the elevator core 1, it may deviate from the installation position due to the load of the worker and the footrest. However, according to the present invention, the support 10 is installed in the support insertion groove 2. Because it is inserted, it maintains its installation position.

The support 10 is preferably configured in a length-adjustable or foldable manner so that both sides are inserted into the support insertion groove 2 and firmly supported on the elevator core 1.

Figure 4 shows a length-adjustable support 10, and the outer tube 11 and the inner tube 12 of different diameters are configured to be flexible. For example, the inner tube 12 is expandable within the outer tube 11. It is inserted and includes a fixture 13 for fixing the length adjustment state of the outer tube 11 and the inner tube 12.

Figure 5 shows another example of the length-adjustable support 10, which is in the form of a turnbuckle in which the first and second pipes 14 and 15 are screwed together via a length adjuster 16.

The length-adjustable support 10 also includes various methods not illustrated in the present invention.

As shown in Figure 6, the folding support 10 is, for example, the first and second rods 10-1 and 10-2 are folded by being connected to the hinge 10-3, and the fixture 10-4 ) is separated from the first and second rods (10-1, 10-2) and the first and second rods (10-1, 10-2) are folded through the hinge (10-3) and the elevator core (1) After inserting the free ends of the first and second rods (10-1, 10-2) into the support insertion grooves (2), unfold the first and second rods (10-1, 10-2) so that the free ends After inserting and fixing each into the support insertion groove (2), insert the fixture (10-4) to maintain the first and second rods (10-1, 10-2) in an unfolded state.

The length-adjustable and foldable supports (10) are inserted into the elevator core (1) in a reduced or folded state, making installation very easy, and then the length is switched to an extended or unfolded state, so that both sides have support insertion grooves (2). It is firmly inserted and fixed.

3. Scaffolding installation (see Figure 7).

After installing the support (10), a safe work space must be created on the support (10) where workers do not fall. For example, two or more joists (20) are installed on the support (10) and on the joists (20). Lay and install the scaffolding (30).

The joist 20 is made of a length that does not deviate from the two supports 10 shown in the drawing, and is preferably a square pipe so as not to deviate from the installation position on the supports 10.

Two or more scaffolds 30 are used. For example, scaffolds 30 of the same size are laid side by side on the joist 20 to form a deck of the same overall height.

The footrest 30 includes an alignment jaw 31 so that it can remain placed on the joist 20. The alignment jaw 31 is formed in two pieces according to the quantity of joists 20 at the bottom of the footrest 30, and is overlapped inside the two joists 20, so that there is no movement of the footrest 30 on the joist 20. Make sure there is no deviation.

The alignment jaw 31 can also be used to overlap the support 10 when the joist 20 is not applied.

Meanwhile, the scaffolds 30 include interlocking portions 32 on both left and right sides (parts connected to neighboring scaffolds 30) so that neighboring scaffolds 30 can be interlocked with each other. The interlocking portion 32 is, for example, a structure that is inserted into each other as shown in FIG. 10, but is of course not limited thereto.

The purpose of providing a plurality of scaffolds 30 is to enable handling (transportation, installation, and removal) without the operator requiring much effort.

The above work is performed while the worker steps on the concrete slab around the elevator core (1) and moves, thus preventing the worker from falling.

As shown in Figure 8, a worker climbs on the scaffolding 30 of the deck unit 100 made in the elevator core 1 through the above process and performs work (installation of core formwork, demolding, etc.) to construct the elevator core 1 on the upper floor. ) can be done safely.

The deck unit of the present invention installed in this way supports the inner form of the elevator core, prevents the inner form from being separated, and also functions to align the verticality.

The elevator core construction method using the present invention consists of repeating 1. Lower floor elevator core construction - 2. Deck unit installation - 3. Upper floor elevator core work - 4. Deck unit disassembly and transportation and installation. Among the above processes, 1 . Lower floor elevator core construction - 2. Deck unit installation - 3. The upper floor elevator core work process is the same as described above, and hereinafter, only the processes of 4. deck unit disassembly, transportation and installation will be described.

4. Dismantling, transporting and installing the deck unit (see Figure 9).

When the upper floor elevator core (1-2) is constructed, the upper floor support insertion groove (2-2) is formed, and the upper floor support (10-2) is installed in the upper floor support insertion groove (2-2) and the upper floor support insertion groove (2-2) is formed. Install the upper joist (20-2) on the support (10-2). Since the lower floor scaffolding (30) cannot be transported, the lower floor support (10-1) and the lower floor joist (20-1), the upper support (10-2) and the upper floor joist (20-2), that is, Two sets of materials are used, but the scaffolding can be shared.

There is a space between the support (10-2) on the upper floor and the joist (20-2) through which the scaffolding (30) can pass from the lower floor to the upper floor, and through this space, the scaffolding (30) on the lower floor is moved one by one to the upper floor. It is transported and installed by laying it on the joist (20-2) of the upper floor.

In this case, all of the scaffolds (30) are installed on the upper joist (20-2) to complete the upper deck unit (100-2), and the lower support (10-1) and joist (20-1) remain. .

The support (10-1) and joist (20-1) of the lower floor are dismantled and transported to construct the elevator core of the next floor.

1: Elevator core, 2: Support insertion groove
3: Core formwork, 4: Block
10: support, 20: joist
30: footrest, 31: alignment jaw
32: interlocking part,

Claims (7)

A prefabricated deck construction method for elevator core construction that uses the materials of the lower floor support, the lower floor joist, and the upper floor support and upper floor joist, and shares the scaffolding between the lower floor and the upper floor,
A first step of forming support insertion grooves on both walls facing the concrete lower floor elevator core;
Install one or more lower floor supports along the direction crossing the lower floor elevator core by inserting and fixing both sides of the support into the support insertion groove formed in the first step, and then install two lower floor joists on the lower floor supports. The second step is to do;
A plurality of scaffolds are installed on the joists of the lower floor installed in the second step, and the alignment ledge formed at the bottom of the scaffold is installed so as to overlap the inside of the joists of the lower floor, so that workers can construct the elevator core of the upper floor. A third step of forming a lower deck to enable;
After completing the construction of the upper floor elevator core, the upper floor support is installed in the support insertion groove formed in the upper floor elevator core, then the upper floor joist is installed on the upper floor support, and the scaffold used on the lower floor deck is dismantled. It is installed on the joist of the upper layer, and the alignment ledge formed at the bottom of the scaffold is installed so as to overlap the inside of the joist of the upper layer, so that the upper deck is formed by repeating the fourth step,
In the fourth step, a space is formed between the support of the upper layer and the joist of the upper layer through which the scaffold can pass from the lower floor to the upper floor, and the scaffolding installed on the joist of the lower floor is transported one by one from the lower floor through the space to the upper floor. A prefabricated deck construction method for elevator core construction, characterized in that it is installed on the joists of the upper floor, dismantles the supports of the lower floor and the joists of the lower floor, and transports them to construct the elevator core of the next floor. The method according to claim 1, wherein in the first step, a block in the shape of the support insertion groove is formed on the inner surface of the core form for pouring concrete of the elevator core, and after curing the concrete, the support insertion groove is formed through demolding of the core form. A prefabricated deck construction method for elevator core construction, characterized in that. The prefabricated deck construction method for elevator core construction according to claim 1 or 2, wherein the lower floor support and the upper floor support are configured in a length-adjustable or folding type. The prefabricated deck construction method for elevator core construction according to claim 1 or 2, wherein the scaffold includes interlocking parts on both left and right sides and is interlocked with neighboring ones.





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