JP2002087730A - Work execution method for elevator tower, and elevator shaft - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a transportation cost and field work in the work execution of an elevator tower. SOLUTION: In a factory or the like other than an erecting construction site of an elevator shaft 2, a cantilever 2a for forming a passage toward each floor of a building is previously mounted to each entrance 64 of the elevator shaft so as to be placeable into a second state vertical to the face of the entrance 64 from a first state positioned along a side face 640 of the elevator shaft 2, provided with the entrance 64. The cantilever is placed in the first state to transport the elevator shaft to the construction site, and at the construction site, the cantilever is fixed into the second state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing an elevator tower after a building is completed or during a construction process, and an elevator shaft for constructing the elevator tower.

[0002]

2. Description of the Related Art Conventionally, in a reinforced apartment house to which no elevating equipment is added, entrances of dwelling units on each floor are faced to each other via a shared floor, and a space between the upper floor and the lower floor of the shared floor is used. Are connected by upper and lower stairs having different directions, and a landing is provided at an intermediate portion of the stairs. A handrail is provided at the landing, and the outside can be seen through the handrail. Conventionally, when increasing and lowering equipment is added to such an apartment house, after removing the stairs by hanging work, the elevator shaft is gradually built from the lower layer to the upper layer, and the elevator basket etc. The elevator tower is expanded by storing the elevator equipment and finishing the interior and exterior of the elevator shaft.

[0003] However, in the above-mentioned conventional method of constructing an additional elevator tower, the stairs must be removed, so that no dwelling units can be used or a temporary staircase to be used before the extension is completed must be installed. As a result, inconvenient living was sometimes imposed on residents, and the cost of adding temporary stairs was high. Also, after assembling columns, beams, etc. at the site, gradually constructing the elevator shaft from the lower layer to the upper layer, the elevator shaft is housed inside the elevator shaft, and elevator equipment such as elevator cages is housed. So that
Not only did it take a long time to build the elevator tower, but it was also necessary to secure a large safety area with no entry for a long time.

[0004] Therefore, recently, an elevator shaft is preliminarily manufactured at a factory and carried into the site. The elevator shaft is erected from the sideways down position to the vertical state at the site, and the lower end side is fixed at a predetermined position. Elevator tower construction methods that allow the entrance to communicate with each floor of the building are beginning to be adopted. According to this construction method, it is not necessary to remove the stairs, and the elevator tower can be constructed in a short period of time, and the construction cost can be reduced.

[0005]

However, in a construction method in which an elevator shaft is preliminarily manufactured in a factory and built on site, a cantilever beam for creating a passage connecting the entrance and exit of the elevator shaft to each floor of the building is provided on site. I am trying to install it. This is because if a cantilever beam is installed vertically in advance at each of the entrances and exits of the elevator shaft at the factory, the chitin can be lifted when the elevator shaft is put on a truck bed when transporting the elevator shaft to the site. This is because the standing beam has an increased load height and may not be able to transport the elevator shaft. Therefore, in the above case, since the elevator shaft and the cantilever beam had to be separately transported to the site, there was a problem that the transportation cost was increased. In addition, since the Chianti beam had to be attached to the elevator shaft at the site, there was a problem that the time and labor required for the construction at the site were increased, and the construction period was long.

[0006]

According to the method for constructing an elevator tower according to the present invention, a tubular elevator shaft having an entrance corresponding to each floor of a building is manufactured in advance.
A method for constructing an elevator tower in which the elevator shaft is vertically erected and fixed after the completion of the building or during the construction process, and the entrance and exit of the elevator shaft are communicated with each floor, except for a site other than the site where the elevator shaft is erected. In a factory or the like, at each doorway of the elevator shaft, a cantilever beam for creating a passage in each floor direction of a building is moved from the first state in which the cantilever is located along a side surface of the elevator shaft provided with the doorway. The elevator is mounted in advance so as to be in a second state perpendicular to the plane of the doorway, and the elevator shaft is transported to the site with the cantilever in the first state. The second state was fixed. Further, in the factory or the like, a floor material such as a slab is attached in advance between a pair of cantilever beams provided for each of the entrances. Further, the elevator shaft according to the present invention is an elevator shaft that is manufactured in advance in a factory or the like other than the site, and is built at the site after the completion of the building or in the process of building to construct the elevator tower, And a mounting portion for mounting a Chianti beam for creating a passage in each direction of the building.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are simplified structural diagrams for explaining a method of constructing an elevator tower according to an embodiment. In each of the drawings, reference numeral 1 denotes a building such as a reinforced apartment house to which no lifting equipment is added. , This is the entrance 1m of each dwelling unit 1a, 1b, 1m comrades are shared floor 1n
The upper and lower common floors 1n, 1n are connected by upper and lower stairs 1c, 1c having different directions, and a landing 1d is provided at an intermediate portion between the stairs 1c, 1c. . A handrail 1e is provided in the landing 1d, and the outside can be seen through the handrail 1e. In the present embodiment, a scheduled position A outside the front part of the handrail 1e.
The elevator shaft 2 is built in the vehicle. The elevator shaft 2 is manufactured in advance at a factory or the like. The production of the elevator shaft 2 is shown in FIG.
As shown in FIG. 1, first, four main pillars 62 are connected by horizontal pillars 62a such as H-section steel, and further, the side portions are reinforced by reinforcing transverse beams, braces, or the like (not shown) to form a quadrangular prism. The shaft frame 620 is manufactured. Next, as shown in FIG.
Inside the shaft frame 620, the guide rail 60,
The lifting equipment such as the lifting basket 70 and the hoist 80 is assembled. Thereafter, as shown in FIG.
By attaching an exterior board 63 to the outside of the door 0 except for the entrance 64 side to perform exterior finishing, a vertically-elevating facility is pre-installed inside, and a square tubular shape having an entrance 64 corresponding to each floor of the building 1 is provided. Elevator shaft 2
Is produced. A bracket 40 (see FIG. 6) as a mounting portion for mounting the cantilever 2a is provided on the side surface of the elevator shaft 2 where the entrance 64 is provided, as described later. That is, the elevator shaft 2 provided with the bracket 40 as the mounting portion is manufactured in advance at a factory. Then, the elevator shaft 2 with the cantilever 2a attached thereto is carried from the factory to the site via the bracket 40 and is built therein. The guide rail 60 may be attached to the horizontal column 62a via a bracket or the like. Further, the guide rail 60 may be attached to the horizontal column by separately providing a dedicated horizontal column for mounting the guide rail 60. The elevator shaft 2 carried from the factory to the site with the cantilever 2a attached is built at the site. In this case, as shown in FIG. 2, the ground 3 at the planned installation position of the elevator shaft 2 is excavated,
Shaft mounting hole 5 reinforced with concrete structure 4
Is formed in advance, and the lower end of the elevator shaft 2 is fitted into the installation hole 5 and then assembled.

[0008] The outline of the construction is as follows: the lower end of the elevator shaft 2 is fitted into the shaft installation hole 5 by a method described later, and the vertical state of the elevator shaft 2 is secured.
Connect the tip of Chianti beam 2a to the tip of landing 1d.
As described later, each entrance 6
4, a pair of cantilever beams 2a provided on both lower sides,
Floor materials such as slabs 50 (see FIG. 6) are pre-installed between 2a (that is, between two cantilever beams 2a, 2a provided in the direction of the paper surface of FIG. 3 corresponding to each floor). The elevator shaft 2 and the building 1 are attached to the joint portion between the slab 50 and the landing 1d, for example, by interposing an expand joint at the joint between the slab 50 and the landing 1d. A communication passage between the entrance 64 of the elevator shaft 2 and the building 1 is formed so as to be structurally separated. And it completes by covering the side part of the Chianti beam 2a with a side wall. Also,
Before the building, as shown in FIG. 2, the tip side of the landing 1d is covered with the vertical curing panel 6, the handrail 1e is dismantled and removed, and the temporary handrail 7 is attached to the same position. . Therefore, as shown in FIG. 3, if the temporary handrail 7 is removed after the elevator shaft 2 is erected, communication between the landing 1d and the cantilever 2a becomes possible. Here, the elevator shaft 2 has a guide rail 60 and a lifting basket 7 in advance.
0, since hoisting equipment such as hoisting machine 80 is installed,
After the elevator shaft 2 is installed, it is not necessary to carry in these elevator facilities and assemble them. For this reason, after the elevator shaft 2 is installed, it is not necessary to suspend the elevator basket 70 and the like from above the elevator shaft 2 by using a crane, so that it is possible to reduce the construction labor and cost on site, and to shorten the construction period. .

In this embodiment, the chianti beam 2a
In a factory, a first state perpendicular to the plane of the entrance 64 from the first state in which each entrance 64 of the elevator shaft 2 is located along the side surface of the elevator shaft 2 where the entrance 64 is provided. It is attached in advance so that it can be in the state of 2. That is, they are mounted so that the first state as shown in FIG. 5A can be changed to the second state as shown in FIG. 5B. In detail, as shown in FIG. 6, three bolt connection holes 40s1, 40s2, are provided on both lower sides of each entrance 64 of the elevator shaft 2.
A bracket 40 is provided as a mounting portion having 40s3, and 3 is also provided on the mounting side 2aw of the cantilever 2a.
The bolts 2a1, 2a2, and 2a3 are provided, and the cantilever beam 2a is temporarily fixed at the factory with one bolt-connecting hole 40s1, 2a1, and a bolt 411, and the side surface 640 of the elevator shaft 2 provided with the entrance 64 is provided. The elevator shaft 2 is transported to the site in a state where the elevator shaft 2 is tilted down and fixed with the bolts 411. 55 is a cushion material. That is, FIG.
The elevator shaft 2 with the cantilever 2a attached in the first state is loaded on a truck bed and transported to the site as shown in FIG. In addition, each entrance 64 of the elevator shaft 2
Between a pair of Chianti beams 2a, 2a provided for each
As shown in FIG. 6, a floor material such as a slab 50 is attached in advance. Then, at the site, the bolts 411 are loosened to raise the cantilever 2a in a state perpendicular to the plane of the entrance 64, and three places are fixed with bolts. That is,
As shown in FIG. 5 (b), the elevator shaft 2 is erected after the cantilever 2a is in the second state.

When the elevator shaft 2 is to be erected, the lower end of the elevator shaft 2 is slid on the ground 3 via sliding means so that the elevator shaft 2 is raised, while being suspended so as to raise the top 2t side of the elevator shaft 2. Then, the elevator shaft 2 is erected vertically.

Hereinafter, a second embodiment will be described with reference to FIGS.
Will be described (in FIGS. 7 and 8, the illustration of the cantilever beam 2a is omitted). First, in a factory, the elevator shaft 2 as described above is manufactured, and as described above, the cantilever 2a is attached to the elevator shaft 2 and transported to the site by a truck or the like.
0a, 10b, the elevator shaft 2 is shown in FIG.
As shown in FIG. 8 (a), it is placed on its side. And
Four main pillars 62, 6 serving as lower ends of the elevator shaft 2
The wheel-like member 2 as a sliding means is provided at the lower ends 62e, 62e of the two main pillars 62, 62 on the side closer to the ground 3 out of 2.
Mount 0,20. Thereafter, as shown in FIGS. 8A and 8B, a suspension wire 11a is attached to a suspension 11 provided on the top 2t side of the elevator shaft 2, and the top 2t side is suspended by a crane or the like. The outer peripheral surface is grounded to the ground 3, and the gantry 10a, 10b is removed. Further, the top 2t side of the elevator shaft 2 is lifted upward, and the wheel-shaped member 20 is slid in the direction in which the elevator shaft 2 stands, as shown in FIG. Be erected. When the elevator shaft 2 is in the vertical state, the elevator shaft 2 is lifted slightly and the wheel-shaped member 20 is removed. Then, the elevator shaft 2 is moved to the position of the shaft installation hole 5 while being suspended in the vertical state.

A stator 31 is protruded from a base 30 provided at the bottom of the shaft mounting hole 5, and a temporary surrounding panel 34 is provided around the lower side of the elevator shaft 2 as shown in FIGS. 9 (a)-
As shown in (d), the stator 32 is fixed to the stator 31 with the fixture 32 previously fixed to the lower end of the elevator shaft 2 and the fixture 32 is positioned with respect to the stator 31 using the jig 33. After the verticality of the elevator shaft 2 is adjusted, the mount 32 is fixed to the stator 31 by welding, bolting, or the like, and the surroundings are closed by outer wall finishing work. In addition, both sides of the cantilever beam 2a connected to the landing 1d are closed with side walls, and an elevator machine inside the elevator shaft 2 is set, so that the number of elevator towers can be increased. Also, after the completion of the expansion of the elevator tower,
The hanging portion 11 may be removed, and the exterior may be finished by performing exterior finishing on the removed portion. Thus, the construction of the elevator tower is completed.

According to the present embodiment, the cantilever beam 2a is attached to the elevator shaft 2 in the first state as shown in FIG. Since the height can be reduced, the elevator shaft 2 to which the floor material such as the cantilever 2a and the slab 50 is attached can be transported from a factory to a site by a truck or the like. Therefore, it is not necessary to separately transport the elevator shaft 2, the cantilever 2a, and the floor material such as the slab 50 to the site, and thus the transportation cost can be reduced. In addition, since there is no need to attach floor materials such as the cantilever 2a and the slab 50 to the elevator shaft 2 at the site, construction work and cost at the site can be reduced, and the construction period can be shortened.

The floor material such as the slab 50 may be attached between the chianti beams 2a before the elevator shaft 2 is built at the site. Also in this case, the cost of transporting the chianti beam 2a can be reduced, and the work of mounting the chianti beam 2a on site can be reduced.

The slab 50 may be a precast concrete plate, a concrete plate integrated with a deck, a metal plate such as a steel plate, or a floor panel made of a single or composite material.

[0016]

As described above, according to the present invention,
In the construction of the elevator tower, the cost of transporting the Chianti beam can be reduced, and the work of mounting the Chianti beam on site is not required. Therefore, the labor and cost of the site can be reduced, and the construction period can be shortened. Also, in factories, etc., by previously installing flooring materials such as slabs between a pair of cantilever beams provided at entrances and exits of elevator shafts, it is possible to further reduce transportation costs,
On-site work can also be reduced. Further, according to the elevator shaft of the present invention, since it is manufactured in advance in a factory or the like and has a mounting portion for mounting the Chianti beam on the side surface, the transportation cost of the Chianti beam can be reduced, An installation work can be eliminated, and an elevator shaft that can reduce the labor and cost of construction on site and shorten the construction period can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view of an apartment house in which an elevator tower is added by a method according to Embodiment 1 of the present invention.

FIG. 2 is a diagram showing a positional relationship between an apartment house and an elevator tower which is added by the method according to the first embodiment.

FIG. 3 is a diagram showing an apartment house and an elevator tower added by the method according to the first embodiment.

FIG. 4 is a diagram illustrating a manufacturing process of the elevator shaft.

FIG. 5 is a diagram showing a first state and a second state of a cantilever of the elevator shaft.

FIG. 6 is a diagram showing details of attachment of a Chianti beam.

FIG. 7 is a view showing the elevator shaft with a wheel-shaped member attached.

FIG. 8 is a view showing an elevator shaft erecting process.

FIG. 9 is a diagram showing an elevator shaft installation process.

[Explanation of symbols]

1 Building, 2 elevator shafts, 2a Chianti beams, 64 doorways, 640 side faces, 40 brackets (mounting parts), 50 slabs.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Masato Imari 2-1, Tsukudo-cho, Shinjuku-ku, Tokyo Kumagaya Gumi Tokyo head office F-term (reference) 2E176 AA01 BB33 BB34 3F305 AA08 BA08 DA07 DA13 DA14

Claims (3)

[Claims] 1. A cylindrical elevator shaft having an entrance corresponding to each floor of a building is manufactured in advance, and the elevator shaft is vertically erected and fixed after completion of the building or during the building process. A method of constructing an elevator tower that communicates the entrance of the elevator with each floor, wherein at a factory other than the site where the elevator shaft is built, at each entrance of the elevator shaft, a cantilever for creating a passage for each floor of the building in the direction of each floor. The beam is attached in advance so that the beam can be changed from a first state in which the beam is located along a side surface of the elevator shaft provided with the doorway to a second state perpendicular to the plane of the doorway, With the Chianti beam in the first state, the elevator shaft is transported to the site, and the Chianti beam is Method of constructing an elevator tower, characterized in that so as to fix to the second state. 2. The method for constructing an elevator tower according to claim 1, wherein a floor material such as a slab is previously attached between a pair of cantilever beams provided at each of the entrances and exits in the factory or the like. . 3. An elevator shaft that is manufactured in advance at a factory or the like other than the site and is built at the site after the completion of the building or during the building process for constructing the elevator tower. An elevator shaft comprising a mounting portion for mounting a Chianti beam for creating a passage in each floor direction.