JPH06264623A - Replacement method - Google Patents

Abstract

PURPOSE:To reduce the days of shutdown in a production line or the like in a low cost-available plant. CONSTITUTION:New columns 2 are installed outside the existing building 1 so as to bear horizontal force during windy days and during an earthquake. A new girder 3, which is designed to bear self-weight along, is installed between the new columns 2 where support columns 5 which bear the axial force from a roof, are set between the existing columns 4 of the building 1 and the girders 3. Then, a new building is constructed while the existing columns alone are arranged to remain. After that, the existing building is dismantled, thereby promoting the reduction in the quantity of structural steel, such as girders.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rebuilding method for decomposing and removing an aged factory building or the like while operating the equipment inside the factory building as much as possible to rebuild the building into a large one.

[0002]

2. Description of the Related Art Conventionally, when it is desired to increase the size of a factory or the like, an existing building is dismantled and the site is reclaimed, after which a larger new building is constructed. Alternatively, a large-span pillar-beam frame structure of a new building may be constructed in such a manner as to enclose the existing building, and the operation of the equipment of the existing building may be secured even a little.

[0003]

In the former one of those described in the prior art, the existing building is dismantled and then a new construction is carried out. Therefore, the renovation work is carried out while continuing the production by using the equipment in the building. It becomes impossible to do. In addition, a temporary factory is created on a site different from the site of the existing building, equipment is moved to this temporary factory to continue production, and the existing building is demolished and removed, and then the building is reconstructed. There is a problem that it will be a serious hindrance to the scale expansion of equipment to increase production, such as securing issues and the time and effort of moving equipment, and there is no choice but to stop production during this equipment transfer. .

In the latter case, a large span (60 to 80 m) large beam must be erected over an existing building, and in order to give such a large beam a predetermined strength, the amount of steel frame is larger than that of a general new building. There is a problem that the cost becomes 2-3 times higher and the cost becomes higher. The present invention has been made in view of such problems of the conventional technology, and the purpose thereof is to save the amount of steel frames and finish at a low cost, and to produce a factory by rebuilding. The purpose is to provide a rebuilding method that can reduce the number of days the line is down.

[0005]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the rebuilding method in the present invention is to construct a new column outside the existing building to bear a horizontal force during wind and earthquake, and A new girder that is designed to withstand only its own weight
A support pillar that bears the axial force from the roof is set between the existing pillar of the existing building and the girder, and then a new building is constructed, and the existing building is dismantled sequentially leaving only the existing pillar. Is.

[0006]

[Operation] If the dismantling and removal of the existing building is carried out several times in sequence, the whole stop of the production line can be avoided, and the overhanging girder does not support the roof load with the support of only the new columns at both ends. At some point along the way, the support provided by the existing columns will be enjoyed, so the amount of steel frames for the girders and new columns will be greatly saved.

[0007]

EXAMPLES Examples will be described with reference to the drawings. Figure 1
In, the new columns 2 and 2 are built outside the existing building 1, and the new girders 3 are erected between the columns 2 and 2. It is good if the girder 3 can bear only its own weight. After that, the support pillar 5 is set between the capital of the existing pillar 4 and the girder 3. The support pillar 5 bears the axial force from the roof. In addition, horizontal force during wind and earthquake is borne by the new columns 2 and 2 on both sides. After constructing a new building based on the new pillar 2 and the girder 3, the existing building 1 is sequentially demolished while leaving only the existing pillar 4.

[0008]

Since the present invention is configured as described above, it has the following effects. (1) Since existing columns are used, the amount of steel frames can be significantly reduced, and rebuilding can be done at low cost. (2) If the dismantling and removal of the existing building is done in several steps,
Full stoppage of the production line is avoided.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a method of the present invention.

[Explanation of symbols]

 1 Existing building 2 New pillar 3 New girder 4 Existing pillar 5 Support pillar

Claims (1)

[Claims] [Claim 1] A new pillar that bears a horizontal force during wind and earthquake is built outside the existing building, and a new large beam that is designed to withstand only its own weight is erected between the new pillars and the existing pillar of the existing building. A support pillar that bears the axial force from the roof is set between the large beam, and then a new building is constructed, and the existing building is dismantled sequentially leaving only the existing pillar. Replacement method.