JP3303218B2 - Reconstruction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of rebuilding a dilapidated factory building or the like by dismantling and removing the internal facilities while operating as much as possible, and rebuilding the building to a large one.

[0002]

2. Description of the Related Art Conventionally, when it is desired to increase the size of a building in a factory or the like, an existing building is dismantled and removed and the site is cleared, and thereafter, a larger new building is constructed. Alternatively, a large span column-beam structure of a new building may be constructed so as to enclose the existing building, and the operation of the facilities of the existing building may be secured at all.

[0003]

In the former of the techniques described in the prior art, the existing building is demolished and then newly constructed, so that the remodeling work is performed using the facilities in the building while continuing production. It becomes impossible to do. In addition, a temporary factory is set up on a site separate from the site of the existing building, equipment etc. are relocated to this temporary plant to continue production, and after the existing building is demolished and removed, the building is rebuilt. There is a problem that it will be a serious hindrance to the scale expansion of equipment to increase production, such as the problem of securing and the trouble of moving the equipment, and the production must be stopped during the transfer of this equipment .

In the latter, a large beam (60 to 80 m) having a large span must be erected over an existing building. In order to give such a beam a predetermined strength, a steel frame amount is smaller than that of a general new building. There is a problem that the cost increases two to three times. The present invention has been made in view of such problems of the conventional technology, and has as its object to reduce the amount of steel frames, achieve a low cost, and produce a factory by rebuilding. The aim is to provide a rebuilding method that can reduce the number of days the line is stopped.

[0005]

In order to achieve the above object, a rebuilding method according to the present invention is to construct a new pillar to bear a horizontal force at the time of a wind or an earthquake outside an existing building, and to provide a space between the new pillar. 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 capital 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 pillars It is.

[0006]

[Function] If the existing building is dismantled and removed in several steps, the entire production line will not be stopped, and the overhanging girders will not support the roof load by supporting only the new columns at both ends. In this way, the support from the existing pillars can be enjoyed at several points along the way, and the amount of steel beams for the girders and new pillars can be greatly reduced.

[0007]

An embodiment will be described with reference to the drawings. FIG.
In (2), new pillars 2 and 2 are built outside the existing building 1, and a new girder 3 is mounted between the pillars 2 and 2. The girder 3 should only withstand 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. The horizontal forces during wind and earthquake are borne by the newly installed 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 dismantled except for the existing pillar 4.

[0008]

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

[Brief description of the drawings]

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

[Explanation of symbols]

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

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04G 23/02 E04H 5/02

Claims (1)

(57) [Claims] (1) A new pillar to bear horizontal force in the event of a wind or an earthquake is built outside the existing building, and a new girder designed to withstand only its own weight is mounted between the new pillar and the existing capital of the existing building. A support column that bears the axial force from the roof is set between the girder and a new building. Replacement method.