JP2527686B2 - Tower-suspended building construction method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a method for constructing a new structure on a high-density site where the structures are densely constructed. The present invention relates to a method of gradually dismantling an existing building along with the construction of a new building, rather than dismantling it into a new structure.

[0002]

2. Description of the Related Art As is well known, various structures such as houses, shops, factories, etc. are densely built in urban areas, and especially in the vicinity of stations, the density of buildings is high and the buildings are densely constructed. There are many high-density sites that have been built, and in these high-density sites, various structures such as houses, shops, factories, etc. have deteriorated or the facilities and equipment have been renovated. There has been a desire for a transition to a structure, that is, a transition from an existing structure to a new structure.

In the case of transitioning from the existing structure to the new structure, it is common practice to dismantle the existing structure, vacate it, and then construct a new structure. However, it is not preferable to suspend the operations of factories, etc. during the construction of a new building, so during that time, a temporary relocation to another location or the suspension of the transition from the existing building to the new building is stopped. It is being relocated to a region where it is easy to secure.

In the meantime, when the above-mentioned temporary relocation is carried out, a temporary relocation destination for that purpose is necessary, and especially in a factory or the like, a considerably large land is required, so that the temporary relocation is required in the urban area and its surroundings. It is very difficult to obtain such temporary relocation destination, and when relocating to a rural area, the employees and their families, or
Implementation was not easy due to social issues such as business partners.

Therefore, as a method for constructing a new building in the above-mentioned factory without stopping the operation of the factory or relocating the factory, after laying rails along the existing building, In a place where construction equipment such as can be used, construct a new building that straddles the existing building between the above rails by dividing it into several blocks, construct one block at a time, and then move sequentially on that rail, and finally After constructing a new building with the required size, moving the facilities in the existing building to the new building, dismantling the existing building, and constructing the lower part of the new building to the new building The ones that make the transition have been proposed and implemented.

[0006]

According to the above-mentioned conventional technique, it is possible to transfer an existing building to a new building without shutting down or relocating a factory or the like, but the building has a high density. In the case of a high-density site that is built in, and there is no room around the existing structure, the rail laying place, or
Since it is not possible to secure a place where construction equipment such as a crane can be used, it is difficult to carry out the implementation.

[0007]

SUMMARY OF THE INVENTION Therefore, the object of the present invention is to solve the problems of the prior art as described above, in which a building is constructed with a high density and there is a margin around the existing building. It is possible to minimize the suspension (business suspension or relocation) of various activities in an existing building when constructing a new building in a high-density site where there is no existing building. It is to provide a method for constructing a new structure that can be smoothly transferred.

[0008]

In order to achieve the above object, the present invention has the following technical means. That is, to explain with reference to the reference numerals used in the accompanying drawings corresponding to the embodiments, on the high-density site where the buildings are built at high density, the existing building 1 on the site is constructed from the beginning of the construction of the new building 2. In the method of gradually dismantling the existing building 1 while constructing the new building 2 without dismantling the existing building 1,
, A process of searching for a site where the tower pillars 3 can be erected on a site that is constructed with high density, a process of erection of the tower pillars 3 at the destination, and a beam and floor structure by the tower pillars 3. A step of suspending and suspending a floor 4 composed of the above structure above the existing building 1 with a predetermined space S, and a floor 4 composed of the beam and the floor structure.
The process of sequentially expanding downward to a predetermined position above
Moving the facilities and the like in the existing building 1 to the floor constructed in the previous step to dismantle the existing building 1; building the new building 2 on the site after dismantling the existing building 1; A tower pillar suspension characterized by a process of combining a floor 4 suspended by a tower pillar 3 and a main body portion 5 of a new building 2 constructed on the site after dismantling the existing building 1 to complete the construction. It is a method of constructing a lowered building.

[0009]

The present invention comprises the above-mentioned technical means, and the existing building 1 was built when the existing building 1 on the high-density site where the building was built densely was transferred to the new building 2. A tower pillar 3 is erected on a high-density site, and then a floor 4 composed of a beam and a floor structure is suspended and suspended by the tower pillar 3, and the floor 4 is additionally installed downward.
Floor where the facilities and equipment in the existing building 1 are transferred to the floor 4, the existing building 1 is dismantled, the main body part 5 of the new building 2 is built there, and the tower pillar 3 suspends it. Since the new building 2 is completed by combining it with 4, it is possible to build the new building 2 while performing various activities in the existing building 1.
Existing buildings on high-density site where buildings were built with high density 1
The transition from the new building to the new building 2 can be carried out smoothly.

Further, since the tower pillar 3 is joined to the main body portion 5 of the new building 2 together with the floor 4, it is incorporated as a structure in the new building 2 and the existing building 1 is newly constructed. Since it is not necessary to dismantle the tower pillars 3 used when moving to the structure 2, the existing structure 1 can be efficiently transferred to the new structure 2.

[0011]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The method for constructing a tower pillar suspended structure according to the present invention is a method of constructing a new building 2 on a high-density site where a large number of existing buildings 1 as shown in FIGS. 1 and 2 are constructed. A method of constructing a new building 2 capable of suppressing the suspension of various activities (temporary relocation, business suspension, etc.) to a necessary minimum. First, the existing building 1 is constructed on a high-density site constructed in high density. The site where the tower pillar can be erected is searched for, and the tower pillar 3 is constructed on the above site (Figs. 3 and 4).

Next, a floor 4 composed of a beam and a floor structure is suspended and suspended by a tower pillar 3 erected on the high-density site so that a predetermined space S exists above the existing building. (FIGS. 5 and 6) Further, the floor 4 is sequentially expanded downward to a predetermined position above the existing building 1 (FIGS. 7 and 8), and the floor 4 is constructed over several layers. After performing the interior / exterior work, the facilities and the like in the existing building 1 are transferred to the floor 4 and the existing building 1 is dismantled (FIGS. 9 and 10). Then, several anchor wires 10 are arranged below the floor 4 suspended and suspended by the tower pillars 3, and the end portions 11 of the anchor wires 10 are anchored to the ground E so that the tower pillars 3 are The stability of the floor 4 suspended and suspended on the floor is ensured.

Then, the main body portion 5 of the new building 2 is constructed on the site where the existing building 1 has been demolished (see FIGS. 11 and 1).
2) Then, the new building 2 is completed by incorporating the several floors 4 suspended and suspended by the tower pillars 3 into the main body portion 5 and integrating them (FIGS. 13 and 1).
4), and at this time, the anchor wire 10 arranged in the lower part of the floor 4 is removed after its role.

Next, each of the above steps will be described in detail. First, in the process of searching for a site where tower pillars 3 can be erected on a high-density site where many existing buildings 1 have been built, the site is searched for as close to the center of the high-density site as possible, and the materials for the site are This is to secure a carry-in route for carry-in. At this time, it may be unavoidable that some temporary relocation etc. are involved, but if it is difficult to secure the above-mentioned carry-in route, form a carry-in route underground. Is also possible.

When the site for erecting the tower pillar 3 and the material loading path can be secured, the tower pillar 3 is provided.
At this time, the tower pillar 3 is constructed as an elevator shaft or the like in the multistory parking lot or the new building 2. Further, depending on the ground condition for the tower pillar 3 to be erected, by forming the foundation portion B of the tower pillar 3 as a wide foundation having a wide end 9 as shown in FIG. , Floor 4
It is possible to sufficiently withstand the load when suspending and suspending the floors and the like, and it is possible to prevent the tower columns 3 that suspend and suspend the floor 4 from swinging, so that it is easy to ensure the stability of the floor 4.

Further, in the step of suspending and suspending the floor 4 composed of the beam and the floor structure by the tower pillar 3 erected in the above-mentioned step, the material is carried from the inside of the tower pillar 3 or its periphery, When the floor 4 is constructed by the beams and the floor structure, the floor 4 is simultaneously constructed and suspended and suspended by the wire 6, and the predetermined space S is formed above the existing building 1. The floor 4 that can accommodate the facilities and equipment in the building 1 is added below.

At this time, several anchor wires 10 are arranged below the floor 4 suspended and suspended by the tower pillars 3, and their end portions 11 are anchored and fixed to the ground E. Thus, the stability of the floor 4 suspended and suspended on the tower pillar 3 is ensured. Further, the positions of the anchor wires 10 arranged in the lower part of the floor 4 do not need to be equidistant, and by balancing the tension when the end portions 11 of the anchor wires 10 are fixed by mooring, It is possible to sufficiently secure the stability of the floor 4, and thereby, even if the standing position of the tower pillar 3 is deviated from the central portion of the floor 4, it is possible to safely suspend and suspend the floor 4.

When the interior and exterior of the floor 4 constructed over the above-mentioned several layers are completed, the facilities and equipment in the existing building 1 are moved to the floor 4 and the existing building 1 Although the dismantling is performed, it is not necessary to suspend the activities in the existing building 1 until this time, and therefore the transition from the existing building 1 to the new building 2 can be performed smoothly.

After the dismantling of the existing building 1, the main part 5 of the new building 2 is built on the site, and the tower pillar 3 and the floor 4 suspended by the tower pillar 3 are suspended. The new building 2 is completed by incorporating it into the main body portion 5 of the new building 2 and forming it integrally, and at this time, the anchor wire 10 arranged at the lower part of the floor 4 is removed after its role. Further, when the tower pillar 3 is formed as a structure of the new building 2 as an elevator shaft or the like, the tower pillar 3 and the main body portion 5 of the new building 2 are connected and fixed, and When the tower pillar 3 is configured as a multi-storey parking lot, it is not necessary to connect and fix the tower pillar 3 and the main body portion 5 of the new building 2 to each other. Body part 5 oscillations of new buildings 2 when
It can be prevented from being transmitted to.

The connection between the tower pillar 3 and the main body portion 5 of the new structure 2 is fixed by welding the pillar 7 forming the tower pillar 3 and the beam 8 forming the floor 4 as shown in FIG. Alternatively, it is connected and fixed by means such as bolting.

Then, the existing building 1 to the new building 2
The auxiliary member constructed during the transition to
For example, since the tower pillars and the like are taken into the main body portion 5 of the new building 2 as they are, troublesome work such as disassembling them is unnecessary, and the existing building 1 can be more efficiently transferred to the new building 2. It is a thing.

Furthermore, by constructing the tower pillar 3 as a single pillar near the center of the high-density site, it is easy to balance the floor 4 suspended and suspended by the tower pillar 3, and thus a special technique is used. Can be carried out without the need of the above, and the structure does not matter about the type such as a reinforcing bar, a steel frame or the like.

Incidentally, the foundation of the tower pillar 3, the suspending and suspending portion of the floor 4, and the connecting portion between the tower pillar 3 and the main body portion 5 of the new structure 2 shown in this embodiment are examples thereof. Therefore, various methods can be considered as necessary.

[0024]

As described above in detail, according to the present invention, the following effects can be obtained. That is, according to claim 1, when transitioning from an existing building of a high-density site where a building is densely constructed to a new building, a tower pillar is erected on the high-density site where the existing building is constructed. Then, by the tower pillar, the floor composed of the beam and the floor structure was suspended and suspended, and the floor was expanded downward, and the facilities and equipment in the existing building were relocated to the floor. Later, the existing structure is dismantled, the main part of the new structure is built there, and the new structure is completed by connecting it to the floor suspended by the tower pillars. It is possible to construct a new building while performing various activities, and therefore, it is possible to smoothly carry out a transition from an existing building to a new building on a high-density site where the buildings are densely constructed.

Further, since the tower pillar is connected to the main body of the new structure together with the floor, it is incorporated as a structure in the new structure, and when the existing structure is transferred to the new structure. Since it is not necessary to dismantle the tower pillars used for, it is possible to efficiently transition from the existing structure to the new structure.

[Brief description of drawings]

FIG. 1 is a plan view showing a state of an existing building on a high-density site where a new building is constructed.

FIG. 2 is a front view showing a state of an existing building on a high-density site where a new building is constructed.

FIG. 3 is a plan view showing a high-density site where tower columns are erected.

FIG. 4 is a front view showing a high-density site where tower columns are erected.

FIG. 5 is a plan view showing a state in which the floor is suspended and suspended by tower towers.

FIG. 6 is a front view showing a state in which the floor is suspended and supported by tower columns.

FIG. 7 is a plan view showing a state in which floors suspended and suspended by tower columns are added over several layers.

FIG. 8 is a front view showing a state in which a floor suspended and suspended by tower pillars is added over several layers.

FIG. 9 is a plan view showing a state in which an existing building is dismantled.

FIG. 10 is a front view showing a state in which an existing building is dismantled.

FIG. 11 is a plan view showing a state in which a new building body is constructed.

FIG. 12 is a front view showing a state in which a new building body is constructed.

FIG. 13 is a plan view showing completion of a new building.

FIG. 14 is a front view showing completion of a new building.

FIG. 15 is an enlarged front view of the basic portion of the tower pillar.

FIG. 16 is an enlarged front view of a connection portion between a tower pillar and a floor.

[Explanation of symbols]

 1 Existing Building 2 New Building 3 Tower Pillar 4 Floor 5 Main Body

Claims (1)

(57) [Claims] 1. On a high-density site where buildings are built with high density, the existing building 1 on the site is not dismantled from the beginning of the construction of the new building 2, but the existing building is gradually being built during the construction. In the method of dismantling 1 and thus constructing the new building 2, the process of searching for a site where the tower pillars 3 can be erected on the site where the existing building 1 is densely constructed, and its purpose. A step of vertically arranging a tower pillar 3 at a place, and a floor 4 composed of a beam and a floor structure is suspended and suspended by the tower pillar 3 above the existing building 1 in a predetermined space S. The process, the process of sequentially expanding the floor 4 composed of the beam and the floor structure downward to a predetermined position above the existing building 1, and the facilities in the existing building 1 in the previous process. The process of moving to the constructed floor 4 and dismantling the existing building 1, The process of constructing the new building 2 on the site after the existing building 1 is dismantled, the floor 4 suspended by the tower pillar 3 and the main part of the new building 2 constructed on the site after the existing building 1 is dismantled A method for constructing a tower pillar suspended structure, which is characterized by comprising the steps of combining 5 and completing the construction.