JP2946372B2 - Construction method of structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction method which is preferably carried out when a middle or high-rise structure is to be carried out without working at a high place.

[0002]

2. Description of the Related Art Conventionally, when building a structure or a building,
Regardless of whether it is a low-rise building or a high-rise building, first build a foundation on the ground, and proceed with the construction method by stacking structures and building frames on this foundation in order from bottom to top. Is common.

[0003]

[Problems to be solved by the present invention] In the case of a building method in which structures and buildings of a building are sequentially stacked from the lower layer to the upper layer on a foundation and the building is advanced, a temporary mounting of a high scaffolding and curing with the progress of the building. is necessary. Also,
Heavy equipment such as cranes for working at heights is required. And
Most construction work is performed at heights, making it difficult to ensure safety. Furthermore, vertical transportation of personnel and materials is required repeatedly, which increases transportation costs and temporary costs.
Of course, after the construction is completed, a work process for removing the temporary structure is indispensable. When a conventional stack-type building is advanced, the long-term vertical load applied to the structural body increases with the progress of the building, and the distortion also increases. Therefore, in order to secure the accuracy and quality of the exterior and finishing work for attaching sash and glass, etc., it is necessary to complete the frame up to the uppermost layer and actually determine the magnitude of long-term vertical load and strain until it is almost determined. Can not start work on. Furthermore, when the weight of the exterior material and the finishing material is strictly considered, there is a problem that the exterior and finishing work must proceed downward from the uppermost layer of the structure to the lower layer, so that the work process becomes complicated. Therefore, an object of the present invention is to perform all work processes from the construction of the building suspension to the exterior and finishing work as ground work at the ground level, and with accuracy and quality assured, and dangerous high-place work. An object of the present invention is to provide a construction method which does not generate heavy scaffolding and curing, and does not require heavy equipment such as a crane for working at heights.

[0004]

As a means for solving the above-mentioned problems of the prior art, a method of building a structure according to the present invention is to use at least a ground clearance of the structure 10 as shown in the embodiment in the drawings. Excavating and constructing a shaft 2 having a diameter and a plane shape equivalent to a depth and a horizontal cross-sectional shape equivalent to the above, on the ground at the site where the structure is to be constructed, and the skeleton 1 of the structure 10
0 ′ is set in the order from the first floor to the high-rise part, and the construction of each module is performed as ground work on the opening surface of the shaft 2, and each time the construction of the module is completed, A step of constructing the skeleton 10 ′ of the structure to the uppermost layer by repeating the process of descending into the shaft 2 by the height of
The finishing work is performed as ground work, and the building 10 ′ in the shaft 2 is raised by the height of the construction unit according to the progress of the exterior and finishing work.
To settle on the ground at the stage where it has risen to the floor,
It is characterized by.

In the construction method of the present invention, the construction of the frame 10 ′ of the structure is performed by the lifting mechanism 5 installed at the edge of the shaft 2.
On the receiving stage 4 supported in the shaft 2
The structure 10 'is lowered or raised into the shaft 2 by the operation of lowering or raising the receiving stage 4 by the elevating mechanism 5, and the construction of the structure 10' is changed to the shaft 2 After completion within the shaft, the reaction foundation 3 is gradually built up from the lower bottom surface of the shaft 2 following the process of raising the frame 10 'by the height of the construction unit. Finally, the structure 10 is also characterized in that it is fixed to the ground using the reaction force foundation 3.

[0006]

[Effect] Each time the structural body 10 'is constructed in units of module, it is lowered into the shaft 2 by the height of the same module unit, so that the above-mentioned construction work can always be performed as ground work at the ground level. Of course, there is no need to temporarily mount high scaffolds or cures, and personnel and materials can always be transported and moved only in the horizontal direction.

[0007] Even when the uppermost layer of the structure 10 is erected, the uppermost layer is also located at the ground level, so that the exterior and finishing work can be ideally started immediately from the uppermost layer as ground work. In other words, the subsequent exterior and finishing works are all performed in a state where the magnitude of the long-term vertical load and strain in each layer of the structure is determined under the same conditions as in the completed state, and quality and accuracy can be easily secured.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 shows a full view of a structure in which the building has been almost completed. The structure comprises a pair of tower structures 10, 10
A planographic board 12 is erected at the upper end of the slab.
The tower structure 10 is made of a steel structure having a height from the ground of about 80 m, and its outer peripheral surface is finished as a glass surface. The disk body 12 is composed of a long steel structural body having a height of 5.7 m, a width of about 32 m and a span of about 300 m, and its outer peripheral surface is finished with a bronze panel or a bronze panel. A PC steel material is arranged in the steel structure skeleton of the board body 12 in the span direction, pre-stress is introduced to perform horizontal leveling, and deformation is prevented.

Next, FIGS. 2 to 4 show an initial stage of starting construction of the above-mentioned structure. This embodiment shows a case where transportation of personnel and materials is performed in tunnels 13 and 14 constructed underground due to poor geographical traffic conditions at the construction site. This point is a case-by-case basis. It should be understood that it is implemented. According to FIG. 3, in the relatively narrow and limited yard indicated by the boundary line 15, the terrain of the board body 12 is a crawler crane 16 and an all-weather operation using a moving shed 17 for welding curing. It has been done as.
And it has shown that the shaft 2 used for constructing the said tower structure 10 was constructed in the position of both ends of the board body 12. According to FIGS. 2 and 4, the shaft 2
Is used on the ground at the site where the tower structure 10 is to be constructed, in order to use the building for the tower structure 10.
And the horizontal cross-sectional shape of the tower structure 10 (vertical approximately 3 m, horizontal approximately 18 m)
It is constructed by digging into a bore and a plane shape (an elliptical shape with a minor axis of about 20 m and a major axis of about 42 m) equivalent to two parallel rectangles. This is because the tunnel 13 described above is connected to the bottom of the shaft 2, and personnel and materials transported through the tunnel 13 use the semicircular portions on both sides of the shaft 2 as temporary openings for lifting. This is because the material 19 is lifted by using the crawler crane 18 for lifting.

According to FIGS. 2 and 4, a wide area for receiving the lower bottom portion of the frame of the tower structure 10 is provided at the opening surface of the shaft 2 at a position where the two tower structures 10 are to be constructed. A receiving stage 4 having a flat shape is horizontally installed in a form supported at both ends by an elevating mechanism 5 installed at the edge of the shaft 2. Details of the lifting mechanism 5 are shown in FIGS. As is clear from FIG. 7, the rear shaft is arranged so as to protrude slightly from the lining concrete 2 a of the shaft 2, and the rear portion is provided at the front end of the cradle 50 fixed by the ground anchor 51 for reaction force, and the center has a capacity of, for example, 500 tons. A hole-type hydraulic jack 52 is installed vertically downward, and the tip of a long PC steel stranded wire 53 for lifting driven by the hydraulic jack 52 is connected to the receiving stage 4. In the figure, reference numeral 54 denotes a fastener for the ground anchor 51 installed on the receiving table 50.
5 and 6, the hydraulic jack 52
Is configured such that, for example, 14 units are set as one unit at the edge of the shaft 2, and one receiving stage 4 is lifted as a parallel translation by four units.

As shown in FIG. 4, the erection of the board 12 is performed on an erection gantry 20 installed on the ground. In addition, an underground cavity 11 is provided below the ground of the erection gantry 20, and an elevating mechanism 5 at an inner edge of the shaft 2 is installed in the upper and lower parts of the erection gantry 20 without any trouble. Moreover, the PC steel wire 53 driven by the hydraulic jack 52 and having a length of 80 m or longer can be left in a state where it is elongated.

Next, according to FIG. 8, a tower structure 10 is placed on a receiving stage 4 supported on the opening surface of the shaft 2 by a lifting mechanism 5 so as to be liftable. The building 10 ′ is constructed in units of modules in the order from the ground floor to the high-rise part, and each time the building in units of the module is completed, the lifting mechanism 5 is incremented by the height of the module. Is repeated, and the step of lowering the receiving stage 4 is repeated, and the stage in which the tower frame 10 'is built reaches the uppermost layer is shown. The tower body 10 ′ is almost completely housed in the shaft 2 and sinks. The structure of the board 12 is almost completed. In addition, since the tower body 10 'and the board body 12 are both steel structures and the amount of steel frame processing and welding is remarkably large, the production of modules that can be transported is carried out as factory production. As work limited to assembling, shortening of construction period, labor saving, and efficiency of on-site work are achieved. after this,
The end of the board 12 is constructed as a connecting portion with the upper end of the tower body 10 'as shown by a dotted line at the left end in FIG.
Thus, the integrated joining of the panel body 12 and the tower body 10 'is also performed as a ground operation. By this stage, the board 12
Exterior with bronze or bronze panels on the outer surface of the
Finishing work is also done completely as ground work.

FIG . 9 and FIG. 10 show the exterior and finishing work of glass on the outer peripheral surface of the tower body 10 'exposed at the ground level in the state of FIG. The mechanism 5 is driven to raise the tower skeleton 10 ′ together with the receiving stage 4 by the height of the construction unit (for example, about 3 m), and the exterior and finishing work are all being performed as ground work. . This lifting step is performed carefully while maintaining the level of the board 12. On the other hand, in the shaft 2, the reaction force foundation 3 is constructed up to immediately below the lower surface of the receiving stage 4 by a method of sequentially stacking from the lower bottom surface. The concrete structure of the reaction force foundation 3 is to assemble a segment made of steel or precast concrete, and to receive a stage 4 if necessary.
In addition, a structure for providing a temporary temporary support of the tower body 10 'thereon or a reaction force for preventing the tower body 10' from falling down is implemented.

FIG. 11 shows the completion of the raising process of the tower body 10 ′, the exterior and finishing work on the ground level, and the lower part of the tower structure 10 is firmly fixed by the anchoring foundation 21 constructed on the ground level. , And shows a state where the construction of the structure already described in FIG. 1 is completed. In addition, the trace of the shaft 2 shows the inside of the building where the reaction foundation 3 was constructed and the other part of the above-mentioned lifting temporary opening in the tunnel 13.
It can be effectively used as a vertical access means in contact with the vehicle, or as a deep parking space or the like.

[0015]

According to the method of building a structure according to the present invention, all building work can be performed as ground work at the ground level, and a crane can be used for temporary installation of high scaffolds and curing, or for working at heights. No heavy equipment such as is required. Of course, safety is easy to secure because there is no work at height. In addition, it is extremely efficient to move the personnel and materials only in the horizontal direction.

Further, the exterior and finishing operations can all be performed as ground operations, and further, starting from the uppermost layer of the tower structure 10 and extending to the lower layer in a completed state in which the long-term vertical load and strain have been substantially determined. As it proceeds in order, the exterior and finish can be made with high quality and accuracy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire view of a completed structure.

FIG. 2 is a perspective view showing a whole view of an initial stage of starting construction.

FIG. 3 is a plan view of a construction site.

FIG. 4 is a vertical sectional view of an initial stage of starting construction.

FIG. 5 is a plan view of a lifting mechanism and a receiving stage.

FIG. 6 is an enlarged plan view of the lifting mechanism.

FIG. 7 is an elevation view of a lifting mechanism.

FIG. 8 is a vertical cross-sectional view at a stage when the construction of the skeleton is almost completed.

FIG. 9 is a cross-sectional view in the front direction at a stage during which the building process of the skeleton and the construction of the reaction force foundation are in progress.

Fig. 10 Construction process of building body and construction of reaction base
FIG. 6 is a side sectional view of a stage in the middle of the process.

FIG. 11 In a vertical sectional view of the stage when the construction of the structure was completed
is there.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Tower structure 10 'Frame 2 Vertical shaft 5 Elevating mechanism 4 Receiving stage 3 Reaction force foundation

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Koji Kono 4-1-1-13 Honcho, Chuo-ku, Osaka-shi Inside Takenaka Corporation, Osaka Main Store (72) Inventor Shuichi Hara 4-1-1, Honcho, Chuo-ku, Osaka-shi No. 13 Takenaka Corporation Osaka Main Branch (72) Inventor Tadashi Nimoto 4-1-1 Hommachi Chuo-ku Osaka City Osaka Main Store (58) Fields surveyed (Int.Cl. ⁶ , (DB name) E04G 21/14 E04B 1/35

Claims (3)

(57) [Claims] A vertical shaft having a bore and a plane shape at least equivalent to a depth and a horizontal sectional shape equivalent to a ground height of the structure,
Excavating and constructing the ground at the site where the structure is to be constructed; and
Performing the construction of each module unit as ground work on the opening surface of the shaft, and repeating the step of descending into the shaft by the height of the same module unit each time the construction of the module unit is completed, The stage of constructing the skeleton of the structure up to the top layer, and then the exterior and finishing work are performed as ground work from the top layer of the skeleton, and the skeleton in the shaft is set to the height of the construction unit according to the progress of this exterior and finishing work. A method of building a structure, comprising: ascending the structure one by one; and fixing the structure to the ground when the structure has risen to the first floor above the ground. 2. The structure of the frame of the structure is constructed on a receiving stage supported in the shaft by an elevating mechanism installed at the edge of the shaft, and the elevating mechanism lowers or raises the receiving stage. The method for building a structure according to claim 1, wherein the skeleton of the structure is lowered or raised into the shaft by the operation of (1). 3. After the construction of the frame of the structure is completed in the vertical shaft, the reaction force is sequentially increased upward from the lower bottom surface in the vertical shaft following the process of raising the frame by the height of the construction unit. 3. The method for building a structure according to claim 1, wherein the foundation is gradually built, and the structure is finally fixed to the ground using the reaction force foundation. .