JP2568979B2 - Heavy column mounting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for laying heavy pillars, and more particularly to a laying apparatus suitably used for laying precast concrete pillars (PC pillars). It concerns the device.

[0002]

2. Description of the Related Art
A prefabricated steel column in a building is constructed by raising and lowering the column head with a truck crane, etc. using the lower end of the steel column as a fulcrum. Plywood or the like is laid on the ground so that the lower end of the pillar is not stained or the base plate is not damaged.

[0003] By the way, such a mounting method can be used for a steel column which is relatively light in weight and easy to handle, but in the case of a heavy column, the ground contact portion with the ground at the time of erecting its own weight. It is not adopted because it is likely to be damaged due to.

[0004] Under these circumstances, in a structure in which the steel structure alone is insufficient in yield strength or a structure in which a large vertical load acts, concrete is wound around a built-in steel column to form a steel-reinforced concrete structure. Cast-in or cast-in-place reinforced concrete structures are employed.

[0005] On the other hand, a heavy-weight precast concrete pillar (PC
If the above-described method can be adopted for erection of the pillar, the efficiency of the erection work can be remarkably improved, and thus an appearance of a device that can easily perform such erection work has been expected.

[0006]

Therefore, according to the present invention, a support base is disposed on a base formed of a frame material via an adjustment mechanism, and a column support is pivotally supported on the support base so as to be rotatable. The lower end side of a heavy column material such as a PC column is placed on a column support and tightened and held, while the column head is suspended by a crane device and the heavy column is supported on a pivot of the column support. By rotating the vertical column and holding it vertically, and in this holding state, by using a mounting device configured to attach the lower end of the heavy column to the foundation of the building, the work of loading the heavy column can be performed. It is one that can be easily performed.

In this case, the adjusting mechanism is to dispose a plurality of jack devices on a base frame provided with a slide surface between the base and the base device, and to attach these jack devices to a support via spherical washers. It is preferable to configure the following.

[0008]

According to the present invention, when the heavy column material is suspended and raised, the lower end portion of the heavy column material is vertically held by rotating the lower end side of the heavy column material with the shaft support of the tightened column support as a fulcrum. There is no weight at the lower end of the material, and no inconvenience such as damage occurs.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, as a preferred embodiment of a heavy column material embedding device according to the present invention, a PC column embedding device will be exemplified and will be described in detail with reference to the accompanying drawings.

That is, the erection device 10 according to the present invention.
As shown in FIGS. 1 and 2, bases 14, 14 configured by combining frame members 12 separated by a predetermined distance are provided.
The adjusting mechanisms 16 and 16 are respectively disposed thereon, and a trapezoidal support base 18 is arranged on these adjusting mechanisms 16.

The adjusting mechanism 16 is configured so as to mainly adjust the verticality of the heavy column by attaching a plurality of hydraulic jacks 22 disposed on the base frame 20 to the support base 18 via spherical washers 24. ing. The lower surface of the base frame 20 is formed with a slide surface 26 made of a material such as fluororesin, and by adjusting the slide surface 26 and the base 14, the plane position of the heavy column material can be adjusted. Has become.

On the other hand, a U-shaped column receiving pedestal 28 having an open upper portion is disposed at a space between the supporting pedestals 18, 18, and the pivots 30, 30 of the column pedestal 28 are supported by the supporting pedestals 18. The column support 28 is rotatably supported by being mounted in the recess 32. In addition, the column receiving base 28 is configured so that its rotating position can be fixed by a fixing device 34 disposed opposite to a predetermined position of each support base 18.

A fixing beam 40 provided on a PC steel bar 36 via a fastener 38 is disposed on the column receiving stand 28.
This fixed beam 40 is used when tightening the lower end side of the heavy column material. In addition, in the figure, reference numeral 42 is a down swing arranged at the lower center of the pillar support 28.

Next, a procedure for erection of a PC column by the erection apparatus according to the present invention having the above-described configuration will be described. First, prior to the installation work of the PC pillar, the area around the pillar installation anchor portion B on the completed pile foundation A is leveled, and if necessary, leveling concrete C is poured into a predetermined thickness (FIG. 3a).

Next, the erection device 10 is set so as to straddle the pile foundation A. Specifically, the adjusting mechanisms 16, 16 and the support bases 18, 18 are arranged on the bases 14, 14, and the pivots 30, 30 of the column support 28 are mounted on the support recesses 32 of these support bases 18. assemble. In this case, the center of the pillar support 28 and the center of the anchor portion B (the center of the structure) are formed by the swing 42 suspended from the pillar support 28.
Are matched (see FIG. 3B).

Then, the PC column 44 transported from the factory
Is placed at a predetermined distance from the embedding device 10 and the embedding device 10 in a horizontal position, and is placed on a temporary receiving table 46 formed of, for example, a torii frame. In this case, the lower end side 44a of the PC column 44 on which the anchor frame 48 is disposed is placed on the column support 28, and the fixing beam 40 is tightened by the stopper 38 provided on the PC steel bar 36 (see FIG. 3C).

Next, the hanging metal fitting 5 for the column head of the PC column 44
0 is lifted via the hanging wire 52 of the crane device (FIG. 3D), and the PC column 44 is raised upright until the PC column 44 is in a substantially vertical state, and then the column support 28 is fixed by the fixing device 34 arranged on the support 18. Then, in this state, the verticality and the height of the PC column 44 are adjusted by appropriately operating the hydraulic jack 22 and the slide surface 26 formed on the lower surface of the base frame 20 is appropriately adjusted with respect to the base 14. The horizontal adjustment is also performed to position the PC column 44 (see FIG. 3E).

After the adjustment of the position of the PC column 44 is completed, the anchor frame 48 at the lower end is fixed to the column fixing anchor B on the pile foundation A, and then the suspension wire 5 is fixed.
You just have to remove 2 and become independent.

[0019]

As described above, according to the erection apparatus according to the present invention, when the heavy column material is suspended and raised, the lower end of the heavy column member is supported by the pivot of the column support. As it is rotated and held vertically, no weight is applied to the lower end of the heavy column material, so that the lower end can be built up without worrying about damage or dirt on the lower end. .

Further, since the verticality and the planar positioning of the heavy column material can be adjusted by the adjusting device, the start-up work can be performed reliably and efficiently, and further, it can be used for a heavy column material such as a PC column. Since it can respond, it has various advantages such as labor saving of construction on site can be further improved.

Although the preferred embodiment of the heavy column material embedding apparatus according to the present invention has been described above, the method of the present invention is not limited to this embodiment. In the case where fine adjustment of the characteristics or the plane position is not required, the adjustment mechanism may be omitted, and it is needless to say that various design changes can be made without departing from the spirit of the present invention.

[Brief description of the drawings]

FIG. 1 is an explanatory front view showing a preferred embodiment of a heavy column material embedding device according to the present invention.

FIG. 2 is an explanatory side view of the mounting device shown in FIG. 1;

FIGS. 3A to 3E are explanatory views of a procedure when a PC column is erected using the erection device according to the present invention, wherein a is a PC.
Explanatory drawing of the pile foundation where the pillar is erected, b is a front explanatory view of the embedding device set on the pile foundation, and c is the PC pillar placed on the erecting device and the temporary receiving stand and the lower end is fixed. FIG. 3D is an explanatory view of a state, FIG. 4D is an explanatory view of a state in which a PC column is raised by using a crane, and FIG. 5E is an explanatory view of a state in which the raised PC column is fixed by a fixing device to perform adjustment.

[Explanation of symbols]

10 Building equipment, 12 Frame materials, 1
4 bases, 16 adjustment mechanisms, 18 support bases,
20 base frame, 22 hydraulic jack,
24 spherical washer, 26 slide surface, 28
Column support, 30 pivot, 32 support recess, 34 fixing device, 36 PC steel bar,
38 stop, 40 fixed beam, 42
Plumbing, 44 PC pillars, 46 temporary cradle,
48 anchor frames, 50 hanging brackets,
52 hanging wires,

Claims (2)

(57) [Claims] 1. A supporting base is arranged on a base formed of a frame material via an adjusting mechanism, a column receiving base is rotatably supported on the supporting base, and a heavy columnar material is mounted on the column receiving base. The lower end side is tightly held and the column cap side is hung to hold the heavy column vertically, and in this holding state, the lower end of the heavy column is attached to the foundation of the structure. A loading device for a heavy column material, characterized in that: 2. The adjusting mechanism according to claim 1, wherein a plurality of jack devices are arranged on a base frame provided with a slide surface between the base device and the base device, and these jack devices are mounted on a support via spherical washers. The apparatus for erection of a heavy column material according to claim 1, comprising: