JP3637455B2 - Basic construction method for equipment installation - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a foundation method for installing various large-scale equipment such as a power plant on the upper surface of foundation concrete via foundation bolts, and in particular, provides a construction method in which the foundation is easy to manufacture and the equipment is easy to install. To do.
[0002]
[Prior art]
As shown in FIGS. 4 to 6, in the thermal power plant, large-sized foundation bolts for installing various rotary devices are arranged with a closing plate 9 having bolt holes at both ends of the cylindrical portion 1 and penetrating the foundation bolt 14 therethrough. Then, a nut 13 is screwed to the lower end to constitute an embedded bracket. And this embedding metal fitting is embed | buried at the time of concrete foundation formation, and it arrange | positions so that the upper part of the foundation bolt 14 may be exposed upwards from the foundation upper surface 12. FIG. Next, the vicinity of the foundation bolt 14 is picked up and filled with a grout material to form the packer 16. Then, a plurality of height adjusting plates 15 having appropriate thicknesses are interposed on the packer 16, the flange portion 7 of the device is placed on the packer 16, and the nut 13 is screwed and fastened to the upper surface of the device. It was fixed on the upper surface 12 of the foundation.
[0003]
[Problems to be solved by the invention]
In the conventional device installation method, the foundation bolt 14 for device installation protrudes on the upper surface 12 of the foundation, and when the device is pulled into a predetermined position, the foundation bolt 14 becomes an obstacle and the installation work of the device is troublesome. At the time of the pull-in, the work for protecting the foundation bolts 14 and the like are required, and there is a disadvantage that the man-hours for installing the equipment increase.
Further, in order to install the equipment at a predetermined level, it is necessary to hang the top surface 12 of the foundation and install a packer there, which requires a lot of time and labor.
Therefore, the present invention takes the following method in order to eliminate the above problems.
[0004]
[Means for Solving the Problems]
The basic construction method for equipment installation of the present invention has a closed cylindrical portion 1 on one end side and welds a nut 3 formed with a screw hole 2 to the inner upper end of the cylindrical portion 1.
Welding a mold material such as an angle mold material or a T-shaped material to the outer periphery of the upper end of the cylindrical portion 1 so that a pair of wing portions 4 having a flat surface 4a on the upper surface protrude,
The burying metal fitting 5 is detachably supported by a support body 6 so that the tubular portion 1 and the falling portion 4b of the wing portion 4 are embedded in the equipment installation base portion, and the flat surface 4a of the wing portion 4 is embedded. A step of exposing
The apparatus installation flange portion 7 is placed on the flat surface 4 a of the wing portion 4, and the flange portion 7 is fastened and fixed to the embedded metal fitting 5 via a bolt 8. It is characterized by.
In a preferred embodiment of the present invention, the closing plate 9 whose outer periphery is sufficiently larger than the diameter of the cylindrical part 1 is fixed to the lower end of the cylindrical part 1.
Furthermore, a screw hole 10 for fastening with the support 6 is provided on the upper surface of the wing part 4.
Further, a notch 11 is formed at the upper end of the cylindrical part 1, and the outer periphery of the nut 3 and the cylindrical part 1 are welded and fixed at the notch 11.
[0005]
【Example】
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an embedded metal fitting 5 manufactured in advance for carrying out the foundation method of the present invention. FIG. 2 shows an example of a support structure for burying the burying metal fitting 5 on the foundation concrete. And FIG. 3 is a longitudinal cross-sectional view which shows the attachment state of the metal fitting 5 for embed | buried by this basic construction method, and the flange part 7 of an apparatus.
In the foundation method in this embodiment, the embedded metal fitting 5 is manufactured in advance. The embedded metal fitting 5 includes a tubular portion 1, a wing portion 4, a nut 3, and a closing plate 9. The cylindrical part 1 is formed with U-shaped notches 11 for welding the nut 3 at two locations on the outer periphery of the upper end. And the nut 3 in which the screw hole 2 was formed is fitted on the inner surface of the upper end portion of the cylindrical portion 1, the peripheral edge portion and the inner surface of the cylindrical portion 1 are welded, and the outer surface of the nut 3 and the edge of the notch portion 11. Weld the parts. Further, in this embodiment, one end of a blade portion 4 made of an angle material of a steel plate is fixed to the upper end of the cylindrical portion 1 by welding. One end surface of the angle member is formed in advance in a shape that matches the outer periphery of the cylindrical portion 1. Further, a screw hole 10 is formed on one upper surface of the angle member. Then, the plane 4a of the angle member is made to coincide with the upper surface of the cylindrical portion 1, and the falling portion 4b is directed downward. And between the edge part of the plane 4a and the edge part of the falling part 4b, and the cylindrical part 1 outer periphery is fixed by welding. It should be noted that other mold materials such as T-shaped steel and H-shaped steel can be used instead of the angle material.
[0006]
Next, a closing plate 9 that is sufficiently larger than the outer diameter is welded and fixed to the lower end of the cylindrical portion 1 to complete the embedded metal fitting 5. As an example, such an embedded metal fitting 5 is detachably and securely held at the center of a support 6 standing in a gate shape. This support body 6 is formed of an angle material, and the lower flat surface of the upper end and the upper surface of the wing part 4 are brought into contact with each other. The nut 3 is screwed and fastened. If the small bolt 17 is fastened to the screw hole 10 of the wing part 4, the plane of the support 6 and the plane of the wing part 4 can be accurately aligned.
The cylindrical part 1 of the embedded metal fitting 5 supported in this way and the falling part 4b of the wing part 4 are embedded and fixed to the foundation concrete as shown in FIG. And the base upper surface 12 corresponds to the lower surface side of the plane 4a of the wing part 4. Next, the legs of the support 6 are cut and the bolts 8 and the small bolts 17 are removed, and the upper surface side of the wing 4 is maintained in a state where there is no protrusion.
[0007]
Therefore, next necessary equipment is drawn onto the base upper surface 12 and the bolt hole of the flange portion 7 is aligned with the nut 3 of the embedding metal fitting 5. Then, a height adjusting plate 15 having an appropriate thickness is interposed between the flange portion 7 and the wing portion 4 to adjust the level, and the shaft portion of the bolt 8 penetrating the flange portion 7 is connected to the embedded metal fitting 5. By screwing and fastening to the nut 3, the installation of the equipment is completed.
In addition, since the closing plate 9 provided at the lower end of the burying metal fitting 5 projects sufficiently outward from the cylindrical portion 1, the burying metal fitting 5 can be prevented from coming out upward.
[0008]
[Operation and effect of the invention]
The foundation method for equipment installation of the present invention is to embed the cylindrical part 1 and the falling part 4b of the wing part 4 in the equipment installation base part and to expose the flat surface 4a of the wing part 4. And the flange part 7 of an apparatus is mounted in the plane 4a, and it comprises so that the volt | bolt 8 may be fastened and fixed to the nut 3 of the cylindrical part 1. FIG. Therefore, unlike the conventional apparatus installation method, it is not necessary to hang the base upper surface 12 and install the packer there. At the same time, since the embedding metal fitting 5 is constituted by the cylindrical portion 1 with the nut 3, the foundation bolt protrudes on the foundation upper surface 12 as in the prior art, and there is no possibility that it will interfere with the drawing and positioning of the device. The equipment can be installed easily and quickly.
[Brief description of the drawings]
FIG. 1 is a perspective view of an embedded metal fitting 5 manufactured in advance for carrying out the foundation method of the present invention.
FIG. 2 shows an example of a support structure for burying the burying metal fitting 5 on foundation concrete.
FIG. 3 is a longitudinal sectional view showing a mounting state of an embedding metal fitting 5 and an apparatus flange portion 7 embedded by the basic construction method.
FIG. 4 is a partially longitudinal sectional elevational view of an embedded metal fitting used in a conventional foundation method.
FIG. 5 is a longitudinal sectional view showing a state in which the embedded metal fitting is embedded on the foundation concrete.
FIG. 6 is a longitudinal sectional view showing a state in which the flange portion 7 of the device is attached to the embedded metal fitting.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cylindrical part 2 Screw hole 3 Nut 4 Wing | blade part 4a Plane 4b Falling part 5 Embedded metal fitting 6 Support body 7 Flange part 8 Bolt 9 Closure plate
10 Screw holes
11 Notch
12 Top surface of foundation
13 Nut
14 Foundation bolt
15 Height adjustment plate
16 Packer
17 Small bolt

Claims (4)

A nut 3 having a closed cylindrical portion 1 on one end side and having a screw hole 2 formed is welded to the inner upper end of the cylindrical portion 1,
Welding a mold material such as an angle mold material or a T-shaped material to the outer periphery of the upper end of the cylindrical portion 1 so that a pair of wing portions 4 having a flat surface 4a on the upper surface protrude,
The burying metal fitting 5 is detachably supported by a support body 6 so that the tubular portion 1 and the falling portion 4b of the wing portion 4 are embedded in the equipment installation base portion, and the flat surface 4a of the wing portion 4 is embedded. A step of exposing
The apparatus installation flange portion 7 is placed on the flat surface 4 a of the wing portion 4, and the flange portion 7 is fastened and fixed to the embedded metal fitting 5 via a bolt 8. Characterized by the
Basic construction method for equipment installation. In Claim 1, the obstruction board 9 whose outer periphery is sufficiently larger than the diameter of the cylindrical portion 1 is fixed to the lower end of the cylindrical portion 1.   The screw hole 10 for fastening with the said support body 6 is provided in the upper surface of the said wing | blade part 4 in Claim 1. In Claim 1, the notch part 11 is formed in the upper end part of the said cylindrical part 1, and the outer periphery of the said nut 3 and the said cylindrical part 1 are weld-fixed in the notch part 11. In FIG.

Images