JPH11159153A - Extending method for elevating facility for dwelling unit access and execution procedure therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method, in which a structural effect on an existing building is reduced, and the foundation works of the existing building are made unnecessary when a mechanical elevating facility is extended to a stairhall type multiple dwelling house. SOLUTION: In the extending method of the elevating facility for dwelling unit access for varying a main dwelling-unit access method into a mechanical elevating facility from stairs while using a stairhall type multiple dwelling house sharing one stairhall by two dwelling units on each floor as an object, at least one or more of mechanical elevating facilities for dwelling unit access are constructed at the adjacent place of the stairhall type multiple dwelling house apart from the multiple dwelling house. In the stairhall type multiple dwelling house, the stairs 2 and stair landings 12 are removed while floor slabs 6 supported to existing stairhall floor slabs 10 and building-frame side walls while being continued to the existing stairhall floor slabs 10 are extended, and external corridors 5 connected to the mechanical elevating facilities for dwelling unit access are installed from the extended floor slabs 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stair-climbing type low- / medium-rise apartment house having no elevator facility such as an elevator. It relates to a method for expanding an existing building.

[0002]

2. Description of the Related Art At present, the aging rate of Japan is at a high value worldwide, and the aging is rapidly progressing. Under such circumstances, barrier-free housing for the elderly has been actively proposed so that the elderly can live comfortably at home.

[0003] On the other hand, especially in urban areas, so-called condominium-type low- and middle-rise apartment buildings have been constructed in many cases due to a shortage of land for residential land. Such low- and middle-rise houses are often so-called "staircase-type apartment houses" having entrances on both sides of each staircase.

[0004] At present, in renovating existing buildings, barrier-free facilities such as no step at the border of adjacent rooms are being implemented in view of an aging society more than ten years from the future, but no elevator equipment such as elevators is provided. In the case of the stair-climbing type low / medium-rise apartment houses, it is strongly desired to add mechanical elevator facilities such as elevators, so that the elderly can easily access them, apart from the renovation of the interior.

[0005]

However, suppose, however, that
In order to convert to a structure like a high-rise apartment with a common corridor with a common corridor (single corridor type apartment house) that is currently being constructed, excavating the vicinity of an existing building and rebuilding a new building from the foundation It has to be constructed, and there is a problem that the expansion work including reinforcement of the existing frame must be large-scale. In addition, since the construction takes a long time, noise and other effects on residents are of course important, and all work must be carried out during the day and night while ensuring traffic for residents. There are also problems such as being large.

Accordingly, a main object of the present invention is to minimize the structural influence on an existing building, eliminate the need for foundation work near the existing building, etc., and minimize the impact on residents while minimizing the effect on residents. It is an object of the present invention to provide a method for increasing and lowering equipment for an existing building and a procedure for performing the same so that construction can be completed in between.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a staircase type apartment house in which two stairs are shared by two stairs on each floor. A method for expanding dwelling unit access elevating equipment for changing to a staircase type apartment house, wherein at least one or more dwelling unit access machine elevating equipment is constructed at an adjacent position separately from the staircase type apartment house, In a house, stairs and landings are removed, and an existing staircase floor slab and a floor slab supported on a side wall of a skeleton are added to the existing staircase floor slab, and the dwelling unit access machine is provided by the expanded floor slab. An external corridor connected to the elevating equipment is provided.

[0008] The external corridor is independent for each floor without being connected by pillars, and extends over each of the overhanging passage portions projecting outward from each of the additional floor slabs on the same adjacent floor, and straddles between these overhanging passage portions. It is desirable to have a structure composed of a general passage portion installed in a vertical position. Eliminating the pillars eliminates the need for foundation work, and the external corridor is not supported from the existing building side, thereby eliminating the need to reinforce the walls of the existing building.

In order to suitably realize the slab structure, it is preferable that the additional slab has a structure in which a steel frame is used for supporting the slab end of the staircase and the side wall of the skeleton. The slab using the steel frame serves as a kind of rigid surface, so that the overhanging passage portion of the external corridor can be safely and reliably supported.

On the other hand, a construction procedure for adding the dwelling unit access elevating equipment includes a first step of constructing at least one or more dwelling unit access machine elevating equipment at an adjacent position separately from the staircase type apartment house. After the second step of constructing an external corridor on each floor by providing temporary pillars, removing the stairs and landings from the top floor and adding an additional floor while using the dwelling unit access machine elevating equipment and the external corridor as working equipment. A third step of sequentially performing plate installation work toward the ground floor side.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a plan view of a staircase-type apartment house before change, and FIG. 2 is a plan view of an apartment house after change.

FIG. 1 shows an apartment house to which the present invention is applied.
As shown in FIG. 1, a staircase-type apartment house 1 in which two staircases 10 are shared by two floors, is mainly intended for low- and middle-rise houses up to the fifth floor. The residents of each floor always go up and down to individual dwelling units using the stairs 2 as an access means.

In such a staircase type apartment house 1, the present invention is applied in order to change the main access means to the dwelling unit from stairs to mechanical lifting equipment such as an elevator. Normally, even if a machine elevating facility is provided, stairs are provided together as an emergency passage in the event of a disaster or the like due to securing of access means at the time of elevator maintenance and regulation by laws and regulations.

On the other hand, FIG. 2 is a plan view of the building after the modification according to the first example, in which additional floor slabs 6, 6,... Which are continuous with the existing staircases 10, 10,. An external corridor 5 is provided to communicate with the additional floor slabs 6, 6...
And stair towers 4A and 4B. The external corridor 5 is installed so as to extend from adjacent extension slabs 6, 6... On the same floor adjacent to each other and to each overhanging passage portion 5A, 5A. The general passage portions 5B, 5B,... In addition,
A vertically extending piping shaft may be provided in the portion of the additional floor slab 6 so that it can be used for updating facilities.

Hereinafter, a specific method of changing the state will be described with reference to FIG.
In detail, based on FIG. 4 and FIG.
There are staircase rooms 10, 10,... In front of each entrance 11, and a landing 12 is provided in the middle of the folded staircase 2 between the upper floor and the lower floor. The remodeling of this part is based on the stairs 2 and landing 1
2 together with the existing staircase 10 and an additional floor slab 6
Is provided. As the additional floor slab 6, it is preferable to use a steel beam 13 having a steel frame as a structure. The steel beam 13 is fixed to the end of the existing staircase 10 and the side wall of the skeleton by anchor bolts and the like. 5 overhang passage portions 5A, 5A ...
And two beam members 14, 14 are passed to the bone members 13a, 13a to form a general passage portion 5B. In addition, in order to make it a passage, a slab plate is installed in each of these framing frames, and paving concrete is cast on it and a slab is constructed, or a rubber sheet is simply laid on an iron plate Etc.

The steel beam 13 has three end faces supported by existing skeletons, respectively.
Forms a kind of rigid surface, and firmly supports the overhanging passage portion 5A and the general passage portion 5B which are cantilevered outward. At this time, the weight of the external passage 5 and the weight of the additional floor slab 6 are set to be equal to or less than the weight of the removed stairs 2 and landing 12. As a guide of the overhang length, the steel beam 13
Should be about the same as, or less than.

By adopting such a passage support structure, the general passage portion 5B can be constructed away from the outer wall surface of the building, and the support to the outer wall of the building becomes unnecessary.
Furthermore, by making the weight of the additional floor slab 6 and the external passage 5 lighter than the weight of the removed stairs 2 and landing 12, the reinforcement of the existing structure becomes unnecessary. Furthermore, the external passage 5 for each floor is independently supported, and the foundation work is not required by eliminating the need for pillars. However, the present invention does not completely deny the installation of a vertical support member such as a pillar, and in some cases, the external passage 5 may be partially provided by a pillar or the like.
May be supported.

On the other hand, the elevator tower 3 and the stair tower 4A, which are provided at necessary places in communication with the external passage 5, are provided.
The 4B is constructed independently of the existing house with respect to its adjacent position, but since it is not structurally used as a support for the external corridor 5, construction in a physically marginal state is possible. ing. At the same time, there is an advantage that vibration and sound from the elevator are not transmitted to the residential building side using the external corridor 5 as a transmission medium even after the start of operation.

The following construction procedure is preferably adopted for the extension work of the machine elevating equipment in order to minimize the effect on residents and to perform the work in a short time and efficiently. .

First, separately from the existing building, the elevator tower 3 and the stair towers 4A, 4B are independently located adjacent to each other.
Is completed from the foundation work. After that, external corridors 5, 5,... Are constructed on all floors while providing temporary struts (not shown). The elevator tower 3, the stair towers 4A, 4
The construction of B and the construction of the external corridors 5, 5,... May be performed in reverse order or concurrently.

When these works are completed, the elevator tower 3 and / or the stair towers 4A, 4B are used as work elevators, and the external passage 5 is used as a work passage. Removal of the landing 12 and installation work of the additional floor slab 6 are sequentially performed toward the ground floor side.

By adopting such a construction procedure, extra temporary facilities are not required, and a resident on a floor above the staircase at the construction site can use the machine elevating access route as soon as possible. In addition, residents on lower floors can access the dwelling units without being affected by the construction.

Next, a second modified example shown in FIG. 5 is an example in which, out of all the dwelling units, only the dwelling units with edge ends are provided with mechanical lifting equipment for the elderly. In the present embodiment, as compared with the first embodiment, the external passage 5 is simply provided by the additional floor slab 6 and the elevator
It is merely a straight passage 15 communicating with the tower 7 with stairs, and other structures are basically the same as those of the first example.

[0024]

As described above in detail, according to the present invention, when installing the mechanical lifting equipment on an existing staircase type apartment house, the structural influence on the existing building is small, and the existing building side is not affected. Foundation work can be eliminated.
In addition, the construction can be completed in a short period of time while minimizing the impact on residents, and this is extremely labor-saving and effective.

[Brief description of the drawings]

FIG. 1 is a plan view of a staircase-type apartment house 1 before a change.

FIG. 2 is a plan view of a building after a change according to a first example.

FIG. 3 is a longitudinal sectional view of a building after the change.

FIG. 4 is an enlarged plan view of a main part of the staircase room after the change.

FIG. 5 is a plan view of a building after a change according to a second example.

[Explanation of symbols]

1 ... staircase type apartment house, 2 ... stairs, 3 ... elevator tower,
4 staircase tower, 5 outside corridor, 5A overhanging passage, 5B
... General passage section, 6 ... Extended floor slab, 7 ... Elevator / stair tower, 10 ... Existing staircase room, 12 ... Landing place, 13 ... Steel beam, 14 ... Beam member

Claims (4)

[Claims] A staircase-type apartment house in which two staircases are shared by two units on each floor, and a method of expanding dwelling unit access elevating equipment for changing a main dwelling unit access method from stairs to mechanical elevating equipment. Constructing at least one or more dwelling unit access machine elevating equipment at an adjacent position separately from the staircase-type apartment house; removing the stairs and landings in the staircase-type apartment house; Continuing with the slab, the existing slab room slab and the slab supported on the side wall of the skeleton are expanded, and an external corridor is provided from the expanded slab to be connected to the dwelling unit access machine elevating equipment. To increase the number of elevators for access to dwelling units. 2. The outside corridor is independent for each floor without being connected by a pillar, and each of the overhanging passage portions projecting outward from each of the additional floor slabs on the same floor adjacent to each other, and a space between these overhanging passage portions. 2. The method of claim 1, further comprising: a general passage portion provided across the vehicle. 3. The method of expanding a dwelling unit access elevating facility according to claim 1, wherein the additional floor slab is made of a steel frame for supporting an end portion of a staircase slab and a side wall of a frame. . 4. A construction procedure for expanding a dwelling unit access elevating facility according to any one of claims 1 to 3, wherein at least one or more of the staircase type apartment house is located at an adjacent position. After the first step of constructing the dwelling unit access machine elevating equipment and the second step of providing temporary pillars and constructing the external corridor of each floor, the dwelling unit access machine elevating equipment and the external corridor are used as working equipment. While removing the stairs and landings from the top floor, and installing the additional floor slabs sequentially toward the ground floor side, the construction procedure for expanding the dwelling unit access lifting equipment.