JPH09221908A - Method of installation construction of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability by successively constructing upper floors from lower layer floors as lifting an uppermost floor while mounting a hanging scaffold on an elevator shaft formed from the lower layer floors in succession and executing elevator construction works. SOLUTION: When a building 2 is constructed successively from lower layer floors while elevating an uppermost floor 3 by a hydraulic jack 5, a hanging scaffold 8 corresponding to a plurality of floors is suspended from an elevator shaft in a floor 6 just under the uppermost floor 3 through a support beam 7. Fire-resistive covering construction works, temporary installation of articles for an elevator, the centering of the articles and final installation are executed respectively in the upper floor 9a, intermediate floor 9b and lowermost floor 9c of the scaffold 8. When a plurality of the elevators are mounted in a crosswise arranged manner, the same floors of the floors 9a, 9b, 9c set up in each elevator shaft are connected by a movable flight of steps being freely housed, and operators are moved freely and the same kind of operations are executed simultaneously. Accordingly, the elevator can be installed safely in the short term of works as being synchronized with the construction of the building while the elevator can be centered accurately and easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing an elevator in a building in which the uppermost floor of the building is assembled and then the lower floors are sequentially constructed.

[0002]

2. Description of the Related Art Conventional installation of an elevator is usually started after the construction of a building frame is completed. Taking the construction of a steel frame structure as an example, after the foundation work is completed, the steel frames are erected in order from the lower floors, and the construction of the structural members is completed by the vertical columns and the horizontal beams. At this time, according to the progress of this steel frame construction, floor slabs on each floor were constructed, the walls that make up the hoistway were constructed, and the fire-resistant coating was sprayed on the steel frame exposed in the hoistway, and finally the hoistway to the top floor. After it was completed and the machine room was completed, the construction of the elevator was started.

The reason for performing the above-mentioned installation method is that rainwater and the like will enter the hoistway and damage the elevator equipment unless the machine room on the uppermost floor is completed, and the installation centering will be performed using the piano wire from the machine room. This is because it is lowered and positioned. In addition, the elevator equipment may be damaged unless the hoistway is fireproofed.

[0004]

However, in the elevator installation method described above, installation of the elevator cannot be started unless the machine room on the uppermost floor of the building is completed, which increases the construction period of the elevator. However, there was a problem that it took a long time to complete the elevator.

In particular, in recent years, improvements have also been made in the automated construction method of construction. When the automatic construction method is used in which the uppermost floor of a building is first assembled and the lower floors are sequentially constructed thereunder to complete floors and wall surfaces, If it is a construction method that requires the construction of an elevator after reaching the top floor of the building, the construction period of a high-rise building will be significantly extended, and the merit of the high-speed construction means will be impaired.

In order to solve the above-mentioned problems, the present invention adjusts the installation of elevators to the progress of the construction of each lower floor in a building in which the uppermost floor of the building is first assembled and then the lower floors are constructed in order. The purpose is to obtain an installation method that allows efficient and safe elevator installation.

[0007]

[Means for Solving the Problems] In a building construction method in which the uppermost floor of a building is assembled first, a hydraulic jack for supporting the same is provided, and the uppermost floor is lifted to build sequentially from the lower floors, a ceiling is formed on the lower floors. A hoistway is constructed using a crane (the length of which can be adjusted if necessary), a support beam is attached to the upper part of the hoistway, and the suspension scaffold is hung by the support beam. We will perform fireproof coating work inside, and while performing centering using a centering device, we will install guide rails, entrance and exit devices, etc. and wire the hoistway.

Further, a suspended scaffold is provided for each bank of the hoistway, and the suspended scaffolds on the same floor are connected by a trap so that an operator can move between the scaffold floors.

[0009] As the building is constructed in order from the lower floor, a hoistway is also constructed and the suspension scaffold is lifted while being synchronized.

According to the construction method having such a structure, the elevator can be installed in synchronism with the progress of the construction of each layer, so that the construction period can be shortened and the completion of the building can be completed early.

Further, by arranging a plurality of suspension scaffolds side by side, it is possible to perform elevator installation (entrance / exit, guide rail centering work and installation work, etc.) and fireproof coating work on the building side by side-by-side plane work. Therefore, the elevator installation work can be performed safely and efficiently.

[0012]

1 to 4 show the case where the elevator installation method according to the present invention is applied to an automatic construction method of a high-rise building in which the uppermost floor is assembled first and the lower floors are constructed in order. It will be described based on.

First, the outline of the automatic construction method for a high-rise building in which lower floors are sequentially constructed is as follows.

A 3rd to 4th floor building 2 is constructed on the foundation 1, and a top floor 3 corresponding to a roof is assembled on it. An overhead crane 4 traveling horizontally is provided on the top floor 3.

Further, a hydraulic jack 5 is attached to the uppermost floor 3, and the uppermost floor 3 is lifted by the hydraulic jack 5 (at this time, since the ceiling crane hits the beam, the length of the overhead crane is shortened and moved). The building 2 is assembled in the open space and the lower floors are constructed in sequence.

The elevator installation method according to the present invention is applied to such a construction method as follows.

A. A support beam 7 is attached to a hoistway portion of a floor 6 directly below the uppermost floor 3 of the elevator, and a suspension scaffold 8 is suspended under the beam 7.

B. Multiple floors 9 (9a, 9)
b, 9c) are provided.

C. The upper floor 9a is used for fireproof coating work in the hoistway 10, and the intermediate floor 9b temporarily installs elevator articles such as a doorway 11, a cage rail 12, a counter rail 13, and a hoistway switch 14. The lowest floor 9c performs the final installation by aligning the temporarily installed supplies with the center line of the car rail 12. In addition, a wiring feeding device 15 is provided for wiring the hoistway, and wiring is also performed.

D. In addition, the car rail core is the pit 1 of the hoistway.
6, a reference car rail 12a is vertically set up, a suspension scaffold 8 horizontally fixes a support beam 7 to a floor 6 directly below the uppermost floor 3, and a device for fixing a scaffold floor 9c on the lowermost floor to the car rail 12 Secure via 18. Further, a template 17 that can be adjusted in the horizontal direction is installed on the supporting beam 7 of the suspension scaffold, and the template 17 is shaped so that the position of each article can be brought out from the car rail core. By doing so, the core of the reference car rail 12a and the core of the template 17 can be centered for each product by swinging down or aligning them with a laser or the like.

E. Further, in a high-rise building, when a plurality of elevators are installed side by side, a suspension scaffold 8 is provided in each hoistway, and the suspension scaffolds 8 are installed side by side on the same floor.
The frames are connected by a frame 19.

E. Further, between the floors 9 of the suspended scaffolding 8, a storable floor 20 is provided. In the gap (opening) between the hoistway and the suspension scaffold 8, a floor 21 that can be stored is provided so as to close it. The floor that can be stored has a structure in which the floor 9 and the floors 20 and 21 are connected by a hinge or the like so that the floor can be stored when the suspension scaffold 8 is lifted (see FIG. 4).

F. When the building fireproof coating work and the elevator installation work are performed by the above method, the storage floors (traps) 20 are respectively pulled out, the scaffolds are aligned side by side, and the floors are aligned so that the worker can move between the suspended scaffolds. To do. Further, the storage floor 21 closes the openings of the respective floors 9 and the hoistway, so that vertical work can be performed simultaneously.

Although the above is performed in the case of lining up side by side, the same applies to the case of facing each other in the same manner.
Should be on the same floor and workers should be able to move from the entrance.

Since the building and the elevator are constructed in this manner, the following effects and advantages can be obtained by this construction method.

First, the top floor 3 is assembled, and the ceiling crane 4 is provided on the lower side of the top floor 3 to construct a lower floor in order. In the elevator installation using the suspended scaffolding, the fireproof coating work in the hoistway can be performed on the upper floor 9a, the elevator can be temporarily installed on the intermediate floor 9b, and the centering final installation can be performed on the lowermost floor 9c. It will be.

In the centering work, the suspension scaffold 8 is fixed by the support beam 7 and the scaffold fixing device 18, and the template 17 placed on the support beam 7 enables easy centering of each part, which improves the elevator installation work. Elevator performance is also improved.

Further, a plurality of hanging scaffolds 8 are connected by a frame 19, and a floor 9 between the hanging scaffolds is connected by a retractable floor 20 so that a worker can suspend the scaffolding horizontally (horizontally). By closing the hoistway and the opening of the suspension scaffold 8 with the floor 21 that can be stored,
Side by side and at the same time (the upper floor 9a performs fireproof coating work, and the intermediate floor 9b temporarily installs the elevator,
The bottom floor 9c can be used for final installation, etc., and efficient work can be performed.

Therefore, in one suspension scaffold, the work is repeated up and down and for each machine. In this way, the same work can be performed side by side, and the work can be performed for each process at a time by distributing the workers for each floor. Therefore, the elevator can be installed safely and efficiently.

As a result, when the building reaches the top floor, only the installation of the machine room is left and the installation of the elevator is completed, so that the elevator is completed early.

In this description, the floor of the suspended scaffold has been described in three steps (floors), but it may be four steps and a plurality of steps depending on the installation time building process and the like.

In the above description, the method of constructing the lower floor is
In the case of hoisting the suspended scaffolding with the method of connecting upwards, in the case of assembling the lower floors, on the contrary, from the upper floor to the lower floor, lower the suspension scaffolding. The same effect can be obtained by doing.

[0033]

EFFECTS OF THE INVENTION According to the present invention, for a high-rise building in which the uppermost floor is assembled and the lower floors are sequentially constructed, a plurality of suspension scaffolds for elevator installation and floors connected to the left, right, up and down provided on the suspension scaffolds are installed. Moreover, by using a centering device, etc., the elevator can be installed safely and efficiently in synchronization with the building, which helps to shorten the completion period of the building. Further, the centering work of the elevator can be easily performed with high accuracy, and the performance of the elevator can be improved.

[Brief description of drawings]

FIG. 1 is an explanatory view of an elevator installation method of the present invention,

FIG. 2 is a diagram showing changes in the installation of the elevator shown in FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is an explanatory diagram of a partial operation of FIG.

[Explanation of symbols]

1 Foundation 12 Car Rail 2 Building 13 Counter Rail 3 Top Floor 14 Hoistway Switch 4 Ceiling Crane 15 Wiring Feeding Device 5 Hydraulic Jack 16 Pit 6 Directly Under Floor on the Top Floor 17 Template 7 Beam 18 Fixing Device 8 Suspension Scaffolding 19 Connecting Frame 9, 9a, 9b, 9c Suspended scaffolding floor 20, 21
Storage floor (Trap) 10 Hoistway 11 Doorway

Claims (6)

[Claims] 1. In a building in which a lower floor is built under the uppermost floor after assembling the uppermost floor of the building, in the lower part of a support beam provided at the top of the hoistway portion of the lower floor. A suspending scaffold for installation workers is provided, and the supporting beam and the suspending scaffold are raised and lowered by a ceiling lifting device, and an elevator hoistway is constructed while sequentially moving the suspended scaffold according to the construction of a lower floor. Elevator installation method 2. The elevator centering device is provided on the supporting beam, and the elevator centering is performed by using the elevator car centering device and a reference car rail provided in the hoistway pit as a guide. Elevator installation method. 3. The elevator installation method according to claim 1, wherein a hoistway for a plurality of floors is simultaneously constructed by using a suspension scaffolding having a size corresponding to a plurality of floors. 4. The elevator installation method according to claim 1, wherein the hoistway is constructed by providing the suspension scaffolding on each of a plurality of hoistways. 5. The suspension scaffolds are laterally connected to each other, and further,
The floor of each scaffolding is connected to the same floor surface and the upper and lower floors respectively by a trap that can be stored so that a worker can move between the suspension scaffolds. Elevator installation method. 6. The elevator installation method according to claim 1, wherein a wiring feeding device is provided on the suspension scaffolding to perform wiring in the hoistway.